DK157847B - Fremgangsmaade til fremstilling af pyrrolidin-2-oner - Google Patents
Fremgangsmaade til fremstilling af pyrrolidin-2-oner Download PDFInfo
- Publication number
- DK157847B DK157847B DK241779A DK241779A DK157847B DK 157847 B DK157847 B DK 157847B DK 241779 A DK241779 A DK 241779A DK 241779 A DK241779 A DK 241779A DK 157847 B DK157847 B DK 157847B
- Authority
- DK
- Denmark
- Prior art keywords
- carbon atoms
- formula
- alkyl
- hydrogen
- phenyl
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- 125000004432 carbon atom Chemical group C* 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- 125000000217 alkyl group Chemical group 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 13
- CDCHBOQVXIGZHA-UHFFFAOYSA-N 1,2-dihydropyrrol-5-one Chemical compound O=C1NCC=C1 CDCHBOQVXIGZHA-UHFFFAOYSA-N 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000005984 hydrogenation reaction Methods 0.000 claims description 6
- 238000007363 ring formation reaction Methods 0.000 claims description 6
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 125000001188 haloalkyl group Chemical group 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical group 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 claims 1
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical group C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 claims 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 34
- 239000000243 solution Substances 0.000 description 28
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 125000001424 substituent group Chemical group 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000012280 lithium aluminium hydride Substances 0.000 description 4
- 150000003235 pyrrolidines Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical class NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- -1 bromine compound Chemical class 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- GNWOFDWOUZXQPD-UHFFFAOYSA-N 3,4-diphenyl-1,2-dihydropyrrol-5-one Chemical compound O=C1NCC(C=2C=CC=CC=2)=C1C1=CC=CC=C1 GNWOFDWOUZXQPD-UHFFFAOYSA-N 0.000 description 2
- KCUJZQHVIDHUQU-UHFFFAOYSA-N 3,4-diphenylpyrrolidine Chemical compound C1NCC(C=2C=CC=CC=2)C1C1=CC=CC=C1 KCUJZQHVIDHUQU-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 150000001734 carboxylic acid salts Chemical class 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- HWJHWSBFPPPIPD-UHFFFAOYSA-N ethoxyethane;propan-2-one Chemical compound CC(C)=O.CCOCC HWJHWSBFPPPIPD-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000003951 lactams Chemical class 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- IOCYQQQCJYMWDT-UHFFFAOYSA-N (3-ethyl-2-methoxyquinolin-6-yl)-(4-methoxycyclohexyl)methanone Chemical compound C=1C=C2N=C(OC)C(CC)=CC2=CC=1C(=O)C1CCC(OC)CC1 IOCYQQQCJYMWDT-UHFFFAOYSA-N 0.000 description 1
- RHNBWZZWDAOBQY-UHFFFAOYSA-N 1,2,4-trimethyl-3-phenyl-2h-pyrrol-5-one Chemical compound CC1N(C)C(=O)C(C)=C1C1=CC=CC=C1 RHNBWZZWDAOBQY-UHFFFAOYSA-N 0.000 description 1
- JWUYOFJPYSNYFC-UHFFFAOYSA-N 1,2-dimethyl-3,4-diphenyl-2h-pyrrol-5-one Chemical compound CC1N(C)C(=O)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 JWUYOFJPYSNYFC-UHFFFAOYSA-N 0.000 description 1
- QLCPYHKRCGVOOA-UHFFFAOYSA-N 1,2-dimethyl-3-phenyl-2h-pyrrol-5-one Chemical compound CC1N(C)C(=O)C=C1C1=CC=CC=C1 QLCPYHKRCGVOOA-UHFFFAOYSA-N 0.000 description 1
- WPPVBSYWZWZVTN-UHFFFAOYSA-N 1,3,5-trimethyl-4-phenylpyrrolidin-2-one Chemical compound CC1C(=O)N(C)C(C)C1C1=CC=CC=C1 WPPVBSYWZWZVTN-UHFFFAOYSA-N 0.000 description 1
- ADFXKUOMJKEIND-UHFFFAOYSA-N 1,3-dicyclohexylurea Chemical compound C1CCCCC1NC(=O)NC1CCCCC1 ADFXKUOMJKEIND-UHFFFAOYSA-N 0.000 description 1
- QCZVVNIEASUBIS-UHFFFAOYSA-N 1,5-dimethyl-4-phenylpyrrolidin-2-one Chemical compound C1C(=O)N(C)C(C)C1C1=CC=CC=C1 QCZVVNIEASUBIS-UHFFFAOYSA-N 0.000 description 1
- XMMJINSTYOLCCA-UHFFFAOYSA-N 1-benzyl-3-[4-(trifluoromethyl)phenyl]-2h-pyrrol-5-one Chemical compound C1=CC(C(F)(F)F)=CC=C1C(C1)=CC(=O)N1CC1=CC=CC=C1 XMMJINSTYOLCCA-UHFFFAOYSA-N 0.000 description 1
- DHMVUKFVGBQDDA-UHFFFAOYSA-N 1-methyl-3-(4-methylphenyl)-4-phenyl-2h-pyrrol-5-one Chemical compound O=C1N(C)CC(C=2C=CC(C)=CC=2)=C1C1=CC=CC=C1 DHMVUKFVGBQDDA-UHFFFAOYSA-N 0.000 description 1
- SYZRZLUNWVNNNV-UHFFFAOYSA-N 2-bromoacetyl chloride Chemical compound ClC(=O)CBr SYZRZLUNWVNNNV-UHFFFAOYSA-N 0.000 description 1
- NJBMZYSKLWQXLJ-UHFFFAOYSA-N 3,4-dihydro-2h-pyrrol-5-amine Chemical class NC1=NCCC1 NJBMZYSKLWQXLJ-UHFFFAOYSA-N 0.000 description 1
- PMGYCIGYLNWVCH-UHFFFAOYSA-N 3-(3,4-dimethoxyphenyl)-4-phenyl-1,2-dihydropyrrol-5-one Chemical compound C1=C(OC)C(OC)=CC=C1C1=C(C=2C=CC=CC=2)C(=O)NC1 PMGYCIGYLNWVCH-UHFFFAOYSA-N 0.000 description 1
- XZWCDKTUYKCMMH-UHFFFAOYSA-N 3-(4-fluorophenyl)-4-[4-(trifluoromethyl)phenyl]pyrrolidin-2-one Chemical compound C1=CC(F)=CC=C1C1C(=O)NCC1C1=CC=C(C(F)(F)F)C=C1 XZWCDKTUYKCMMH-UHFFFAOYSA-N 0.000 description 1
- XIAMSSUQNNNXMH-UHFFFAOYSA-N 3-(4-fluorophenyl)-4-phenyl-1,2-dihydropyrrol-5-one Chemical compound C1=CC(F)=CC=C1C1=C(C=2C=CC=CC=2)C(=O)NC1 XIAMSSUQNNNXMH-UHFFFAOYSA-N 0.000 description 1
- SYUHPEZHTMIRMJ-UHFFFAOYSA-N 3-(4-fluorophenyl)-4-phenylpyrrolidin-2-one Chemical compound C1=CC(F)=CC=C1C1C(=O)NCC1C1=CC=CC=C1 SYUHPEZHTMIRMJ-UHFFFAOYSA-N 0.000 description 1
- LXZAVFHIIYGLTF-UHFFFAOYSA-N 3-(4-methoxyphenyl)-4-phenyl-1,2-dihydropyrrol-5-one Chemical compound C1=CC(OC)=CC=C1C1=C(C=2C=CC=CC=2)C(=O)NC1 LXZAVFHIIYGLTF-UHFFFAOYSA-N 0.000 description 1
- XRCJTMJEQCHAOB-UHFFFAOYSA-N 3-(4-methylphenyl)-4-phenyl-1,2-dihydropyrrol-5-one Chemical compound C1=CC(C)=CC=C1C1=C(C=2C=CC=CC=2)C(=O)NC1 XRCJTMJEQCHAOB-UHFFFAOYSA-N 0.000 description 1
- QPGLUEKHBNOAHG-UHFFFAOYSA-N 3-carboxypropylazanium;chloride Chemical class Cl.NCCCC(O)=O QPGLUEKHBNOAHG-UHFFFAOYSA-N 0.000 description 1
- CVOQOLZRCXIRRT-UHFFFAOYSA-N 3-methyl-4-[4-(trifluoromethyl)phenyl]pyrrolidin-2-one Chemical compound C1NC(=O)C(C)C1C1=CC=C(C(F)(F)F)C=C1 CVOQOLZRCXIRRT-UHFFFAOYSA-N 0.000 description 1
- JPMRXLUPEVYCNZ-UHFFFAOYSA-N 4-(2-fluorophenyl)-3-[4-(trifluoromethyl)phenyl]-1,2-dihydropyrrol-5-one Chemical compound FC1=CC=CC=C1C1=C(C=2C=CC(=CC=2)C(F)(F)F)CNC1=O JPMRXLUPEVYCNZ-UHFFFAOYSA-N 0.000 description 1
- PUUOYNFEZBLMMU-UHFFFAOYSA-N 4-(3,4-dimethoxyphenyl)-3-phenylpyrrolidin-2-one Chemical compound C1=C(OC)C(OC)=CC=C1C1C(C=2C=CC=CC=2)C(=O)NC1 PUUOYNFEZBLMMU-UHFFFAOYSA-N 0.000 description 1
- QZSANDZKAKLRPX-UHFFFAOYSA-N 4-(4-fluorophenyl)-3-[4-(trifluoromethyl)phenyl]-1,2-dihydropyrrol-5-one Chemical compound C1=CC(F)=CC=C1C1=C(C=2C=CC(=CC=2)C(F)(F)F)CNC1=O QZSANDZKAKLRPX-UHFFFAOYSA-N 0.000 description 1
- LIOVPXGQAPGNNY-UHFFFAOYSA-N 4-(4-fluorophenyl)-3-phenyl-1,2-dihydropyrrol-5-one Chemical compound C1=CC(F)=CC=C1C1=C(C=2C=CC=CC=2)CNC1=O LIOVPXGQAPGNNY-UHFFFAOYSA-N 0.000 description 1
- PRNHHUOUMAWRJT-UHFFFAOYSA-N 4-(4-methoxyphenyl)-3-phenylpyrrolidin-2-one Chemical compound C1=CC(OC)=CC=C1C1C(C=2C=CC=CC=2)C(=O)NC1 PRNHHUOUMAWRJT-UHFFFAOYSA-N 0.000 description 1
- FEAMOVNKFGZAET-UHFFFAOYSA-N 4-(methylamino)-3-phenylpentanoic acid Chemical compound CNC(C)C(CC(O)=O)C1=CC=CC=C1 FEAMOVNKFGZAET-UHFFFAOYSA-N 0.000 description 1
- OMYHIXODIJKCPW-UHFFFAOYSA-N 4-amino-2-(4-fluorophenyl)-3-[4-(trifluoromethyl)phenyl]butanoic acid Chemical compound C=1C=C(C(F)(F)F)C=CC=1C(CN)C(C(O)=O)C1=CC=C(F)C=C1 OMYHIXODIJKCPW-UHFFFAOYSA-N 0.000 description 1
- JOYRWNXTZLYBQG-UHFFFAOYSA-N 4-amino-2-(4-fluorophenyl)-3-phenylbutanoic acid Chemical compound C=1C=CC=CC=1C(CN)C(C(O)=O)C1=CC=C(F)C=C1 JOYRWNXTZLYBQG-UHFFFAOYSA-N 0.000 description 1
- MGNLMDDRHLWILY-UHFFFAOYSA-N 4-amino-3-(4-fluorophenyl)-2-phenylbutanoic acid Chemical compound C=1C=C(F)C=CC=1C(CN)C(C(O)=O)C1=CC=CC=C1 MGNLMDDRHLWILY-UHFFFAOYSA-N 0.000 description 1
- VFGHAQNYKTWWOM-UHFFFAOYSA-N 4-amino-3-(4-methylphenyl)-2-phenylbutanoic acid Chemical compound C1=CC(C)=CC=C1C(CN)C(C(O)=O)C1=CC=CC=C1 VFGHAQNYKTWWOM-UHFFFAOYSA-N 0.000 description 1
- DQOSOTIKDZAXKT-UHFFFAOYSA-N 4-phenyl-3-[4-(trifluoromethyl)phenyl]-1,2-dihydropyrrol-5-one Chemical compound C1=CC(C(F)(F)F)=CC=C1C1=C(C=2C=CC=CC=2)C(=O)NC1 DQOSOTIKDZAXKT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000009876 asymmetric hydrogenation reaction Methods 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- QWHLIBVLRWSYDP-UHFFFAOYSA-N bis(4-bromo-2,3,5,6-tetrafluorophenyl)diazene Chemical compound FC1=C(Br)C(F)=C(F)C(N=NC=2C(=C(F)C(Br)=C(F)C=2F)F)=C1F QWHLIBVLRWSYDP-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- SRCZQMGIVIYBBJ-UHFFFAOYSA-N ethoxyethane;ethyl acetate Chemical compound CCOCC.CCOC(C)=O SRCZQMGIVIYBBJ-UHFFFAOYSA-N 0.000 description 1
- 229960003692 gamma aminobutyric acid Drugs 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002997 prostaglandinlike Effects 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 150000003283 rhodium Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- CMSYDJVRTHCWFP-UHFFFAOYSA-N triphenylphosphane;hydrobromide Chemical compound Br.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 CMSYDJVRTHCWFP-UHFFFAOYSA-N 0.000 description 1
- 239000007966 viscous suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
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- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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Description
x DK 157847 B
Den foreliggende opfindelse angår en fremgangsmåde til fremstilling af en pyrrolidin-2-on med formlen R4 R3 R5 N>-( R Λ 3\
><5 2\ (D
>5' E1 5 hvori er hydrogen, alkyl med 1-5 carbonatomer, phenyl eller phenyl substitueret med alkyl med 1-5 carbonatomer, r3 er hydrogen, alkyl med 1-5 carbonatomer, phenyl eller phenyl substitueret med halogen, carboxyl, alkyl med 1-5 carbonatomer, halogenalkyl med 1-5 carbonatomer eller 10 alkoxy med 1-5 carbonatomer, idet r3 er forskellig fra hydrogen eller alkyl, når R1 er hydrogen, R4 er phenyl eller phenyl substitueret med halogen, carboxyl, alkyl med 1-5 carbonatomer, halogenalkyl med 1-5 carbonatomer eller alkoxy med 1-5 carbonatomer, R^ er hydrogen eller alkyl 15 med 1-5 carbonatomer, R^1 er hydrogen eller alkyl med 1-5 carbonatomer,' idet enten R5 eller R5' betyder hydrogen, og fremgangsmåden ifølge opfindelsen er ejendommelig ved, at man ringslutter en forbindelse med formlen R4 R3
R5 / X
"X dv) R5' B1 20 eller R4 PPh3Bre r5\/ E (XIII) F ^ R1
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2 hvori rI, r3, r4, r5 0g r5 ' har den ovenfor angivne betydning i basisk medium og i fravær af oxygen til dannelse af en 3-pyrrolin-2-on med formlen E4 E3 Έτ (V) Η1 hvori Ri, r3, r4, r5 0g r5 ' har den ovenfor angivne betydning, hvorefter man hydrogenerer en dannet 3-pyrrolin-2-on med formlen V i nærværelse af en virksom hydrogeneringskatalysator.
10 Pyrrolidin-2-oner med formlen (I) og de tilsvarende pyrrolidiner med formlen E4 E3 5>c > (II) i1 omfatter mange kendte forbindelser med interessant CNS—aktivitet (Archivum Immunologiae et Therapiae 15 Experimentalis 1975, 23, 733-751). Mange forbindelser med formlen I har prostaglandinlignende virkning (tysk offentliggørelsesskrift nr. 2.527.989).
Pyrrolidin-2-onerne (I) fremstilles almindeligvis ved ringslutning af den tilsvarende 4-aminosmørsyre eller en 20 ester heraf med formlen
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3 R5 R4 R3
I 1 I
R½H - C - CH - CH - COgR (III) «5· ΈΓ og 4-halogenbutyramid, ved omsætning af lactoner med aminer, eller hydrolyse af 2-imino-pyrrolidiner (britisk 5 patentskrift nr. 1.350.582 og U.S.-patentskrift nr. 4.012.495).
Disse metoder til fremstilling af forbindelser med formlerne I og II har deres begrænsning, hvad angår effektiviteten; typer af substituenter i de forskellige 10 stillinger og vanskeligheden ved at fremstille rene stereoisomere og optiske aktive isomere.
Fra GB patentskrift nr. 857.426. kendes endvidere en fremgangsmåde til fremstilling af substituerede pyrrolidiner ved hydrogenering af tilsvarende pyroliner i 15 nærværelse af en Raney-nikkelkatalysator. De fremstillede substituerede pyrolidiner er basiske aminer, hvorimod de ved fremgangsmåden ifølge opfindelsen fremstillede pyrrolidin-2-oner er neutrale amider.
Et hovedproblem ved fremstilling af pyrrolidin-2-oner (I) 20 ved hydrogenering af 3-pyrrolin-2-oner (V) er vanskeligheden ved at fremstille 3-pyrrolin-2-oner (V). 1 U.S.-patentskrift nr. 3.272.842 beskrives fremstillingen af visse 3-pyrrolin-2-oner (V) ved følgende reaktion:
DK 157847 B
4 R^ R4 R3 r- XC=0 CH-R3 _ \_/
20 </ I _„E
R? o R5 \ O
E1 il (IV) (T)
Imidlertid kan R^ og ' ikke være hydrogen, og er altid S-CH2- (S = substituent). Denne ringslutning af 5 forbindelsen med formlen IV med R^ = aryl eller substitueret aryl, og R^ og/eller r5' = hydrogen svarende til eksemplerne i U.S.-patentskrift nr. 3.272.842 finder enten ikke sted eller giver gule forbindelser (formentlig dimere), hvilket er resultatet af forskellen i 10 substituenter, dvs. disse metoder kan ikke anvendes til fremstilling af de omhandlede forbindelser.
3-Pyrrolin-2-oner (V) er blevet fremstillet efter følgende reaktionsskema (G. Stork og R. Matthews, Chemical Communication 1970, 445-446): ^OEt R4 OR R3 /P0^
R^ I^OR I
> 2 X 1) PCC
R5' 1111 HO N) 2) H+ (VI) (VII) R4 R3 OEt
H
(VIΙΪ) 5 DK 15/847b R4 R3
H
(V)
Imidlertid er anvendelsen af dicyclohexylcarbodiimid (DCC) til kondensation af aminoketonderivatet (VI) med den 5 ustabile phosphoneddikesyre (VII) uegnet for synteser i stor målestok. Desuden er prisen på DCC ret høj, og processen bliver yderligere uøkonomisk, fordi N,N’-dicyclohexylurinstof er et biprodukt, som det er vanskeligt at fjerne.
10 En lignende ringslutningsreaktion (T.W. Guntert et al.,
Helv.Chim.Acta 60, 334-339 (1977)) er blevet foreslået som følger: R4 Cl R4 P®(Ph)3 tj \.=0 / \=0 < cie \ ~* H / \ -*
f N
Η I
H
(IX) (X)
R4 H
N ^
H
(V)
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6
Imidlertid kræver denne metode gentagen kromatografisk adskillelse til isolering af 3-pyrrolin-2-on (V) med = 17/3-steroidyl i 10% udbytte, så også denne metode er 5 uegnet til syntese i stor målestok; derimod var man ikke i stand til at fremstille bromforbindelsen svarende til forbindelsen med formlen IX (svarende til forbindelsen med formlen XII i den foreliggende beskrivelse).
Ifølge den foreliggende opfindelse kan direkte 10 ringslutning af forbindelser med formlen IV gennemføres effektivt netop til syntese af substituerede 3-pyrrolin-2-oner (V), dog mest bekvemt, hvor substituenterne og R^ (i iv) opfylder følgende to kriterier: (1) R^ er forskellig fra hydrogen eller (2) r! 15 er hydrogen, og R^ er en gruppe, som stabiliserer anioner ved 03 og er basestabil, f.eks. phenyl eller substitueret phenyl, men ikke alkyl eller hydrogen.
3- Pyrrolin-2-oner (V) kan let hydrogeneres, f.eks. med Pd/C, Pt eller chirale rhodiumkomplekser som katalysator, 20 i alkoholisk (fortrinsvis methanolisk) opløsning til de CNS-aktive substituerede pyrrolidin-2-oner (I—cis). Denne reaktionsfølge har den fordel, at man opnår derivater, hvori R^ og R^ udelukkende er cis-substituenter.
I-cis-forbindelserne kan omdannes til de tilsvarende 25 i-trans-forbindelser ved behandling med base eller syre. Pyrrolidin-2-onerne (I) kan ved behandling med stærk syre eller base hydrolyseres til de tilsvarende 4- aminosmørsyre-derivater (III), hvilket ledsages af delvis isomerisering af R^-substituenten og resulterer i 30 en diastereoisomerblanding, der kan isoleres som salte (f.eks. med HC1, natrium eller magnesium) eller som frie aminosyrer. Når R1 er alkyl, er hydrolysen ufuldstændig, da der opstår ligevægt mellem forbindelserne med formlerne I og III, som kan adskilles ved ekstraktion.
35 En yderligere fordel ved den foreliggende opfindelse er,
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7 at reduktion af de nye pyrrolidin-2-oner (I), f.eks. med B2H5 eller LiALH^ resulterer i dannelsen af nye pyrrolidiner [Il-cis (R3 og R4 cis) eller Il-trans (R3 og 5 R4 trans) ] afhængigt af udgangsmaterialet.
Reduktionen af C=C-dobbeltbindingen i forbindelsen med formlen V udføres let med hydrogen og ca. 5 til 15% ca.
10%’s palladium-på-kul som katalysator. Asymmetrisk hydrogenering opnås med chirale rhodium-katalysatorer 10 (f.eks. J. Am. Chem. Soc. 99, (1977) 5846-52). Filtrering og afdampning af opløsningsmidlet, fortrinsvis methanol, giver direkte de ønskede lactamer I-cis i kvantitativt udbytte. Når R^- i formel V er benzyl, kan I-cis, hvori R1 er hydrogen, opnås ved hydrogenolyse, dvs. at 15 N-benzylgruppen fungerer som beskyttelsesgruppe, når R3 er hydrogen, alkyl eller substitueret alkyl.
Hydrolyse af forbindelsen med formlen I i koncentrerede (15-35%) mineralsyrer (f.eks. HC1) under tilbagesvaling efterfulgt af inddampning fører direkte til dannelsen af 20 de tilsvarende 4-aminosmørsyrehydrochlorider (hvis mineralsyren er HC1) med formlen III. Anvendes svovlsyre, kan sulfaterne fjernes med bariumhydroxidopløsning til opnåelse af de frie aminosyrer (med formlen III), som kan omdannes til et ønsket carboxylsyresalt (f.eks. magnesium) 25 eller til et ammoniumsalt med en terapeutisk acceptabel syre. På den anden side fører hydrolyse med base direkte til de tilsvarende carboxylsyresalte (f.eks. natrium eller kalium).
Reduktion af carbonyl i lactamer med formlen I med f.eks.
30 lithiumaluminiumhydrid eller borhydrid fører til dannelse af de tilsvarende pyrrolidiner med formlen II, som kan omdannes til et ammoniumsalt med en terapeutisk acceptabel syre.
De følgende eksempler belyser fremgangsmåden ifølge
DK 157847B
8 opfindelsen, samt fremstillingen af udgangsmaterialer.
Eksempel 1 3 , 4-Diphenyl-3-pyrrolin-2-on (Va) 5 En opløsning af 12,6 g (50 mmol) 2-phenylacetamidoaceto-phenon i 200 ml tert.butanol sattes til en opløsning af kalium-tert.butoxid, fremstillet ud fra 6,5 g kalium (166 mmol) og 200 ml tert.butanol under nitrogen, under tilbagesvaling af sidstnævnte opløsning. Efter tilbagesvaling 10 i 40 minutter afkøledes opløsningen til 40eC og indstilledes med 2 N HC1 (ca. 120 ml) til sur reaktion (pH 6 til 5). Den dannede suspension hældtes i 3 liter isvand. Bundfaldet opsamledes og vaskedes med vand. Efter tørring opnåedes 9,85 g (84,1%) af forbindelsen med formlen Va med 15 smp. 183-190°C. Ekstraktion af vandet med chloroform gav yderligere 1,3 g (11,1%) af forbindelsen med formlen Va.
En prøve omkrystalliseret fra benzen havde smp. 177-179°C. Følgende forbindelser med strukturen i formel V fremstilledes analogt:
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9 3-Phenyl-4-(41 -chlorphenyl)-3-pyrrolin-2~on (Vb), gmp, 204-210°C, 2- (2'-carboxyphenyl)-4-phenyl-3-pyrrolin-2-on (Vc), smp. 238-241°C, 5 3-phenyl-4-(4'-fluorphenyl)-3-pyrrolin-2-on (Vd), smp.
200-202°C, 3— (4' -fluorphenyl)-4-phenyl-3-pyrrolin-2-on (Ve), smp.
199-209°C, 3-phenyl-4-(4' -methylphenyl )-3-pyrrolin-2-on (Vf), smp.
10 210-220°C, 3-phenyl-4-(4'-trifluormethylphenyl)-3-pyrrolin-2-on (Vg), smp. 195-198°C, 3-( 2 ’ -fluorphenyl)-4-(4' -trifluormethylphenyl)-3-pyrrolin-2-on (Vh), smp. 165-166°C, 15 1,3,5-trimethyl-4-phenyl-3-pyrrolin-2-on (Vi), smp.
79-8l°C, 1-benzy1-4-(4'-trifluormethylphenyl)-3-pyrrolin-2-on (Vk), gummiagtig, 1- benzyl-3-methyl-4-(4'-trifluormethylphenyl)-3-pyrrolin-20' 2-on (VI), gummiagtig, 1.5- dimethyl-3,4-diphenyl-3-pyrrolin-2-on (Vm ), smp.
95-103°C, 1.5- dimethyl-4-phenyl-3-pyrrolin-2-on (Vn), smp. 130-135°C, 25 l-methyl-3-phenyl~4-( 4 ’ -methylphenyl) -3-pyrrolin-2-on (Vo), smp. 123-124°C, 3-phenyl-4- (4' -me thoxy phenyl )-3-pyrrolin-2-on (Vp), smp.
179-l8l°C, 3-phenyl-4-(3 ’ ,4'-dimethoxyphenyl)-3-pyrrolin-2-on (Vq), 30 smp. 202-204°C, 3-(4' -f luorphenyl )-4-( 4' -trifluormethylphenyl )-3-pyrrolin- 2- on (Vu), smp. 212-213°C,
Eksempel 2.
cis-3.4-Diphenyl-pyrroli.din-2-on (cis-la) 35 En opløsning af 9,00 g 3,4-diphenyl-3-pyrrolin-2-on (Va) i 200 ml methanol og 0,90 g 10#'s palladium-på-kul anbragtes
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10 i en 500 ini hydrogeneringskolbe og hydrogeneredes i 16 timer ved stuetemperatur. Katalysatoren filtreredes fra, og methanolet afdampedes i vakuum. Krystallisation fra benzen-petroleumsether 1:1 gav krystaller med smp. 154-155°C. Eøl-5 gende forbindelser fremstilledes analogt: „ 3 -Phenyl-4- (4' -fluorphenyl) -pyrrolidin-2-on (cis-Id), smp. 198-200°C, 3—(4f-fluorphenyl)-4-phenyl-pyrrolidin-2-on (cis-le), smp. 167-168°C, 10 3-phenyl-4-(41-methylphenyl)-pyrrolidin-2-on (cis-If), smp. 190-191°C, 3-phenyl-4-(41-trifluormetbylphenyl)-pyrrolidin-2-on (cis-Ig), smp. 149-151°C, 3— (2 *-fluorphenyl)-4-(4'-trifluormethylphenyl)-pyrrolidin-15 2-on (cis-Ih), smp. 154-156°C, 1.3.5- trimethyl-4-phenyl-pyrrolidin-2-on (cis-li), gummiagtig, 4— (41-trifluormethylphenyl)-pyrrolidin-2-on (Ik), smp.
12l-122°C, 20 3-methyl-4-(4’-trifluormethylphenyl)-pyrrolidin-2-on (cis-Il), 1.5- dimethyl-4-phenyl-pyrrolidin-2-on (In), gummiagtig, l-methyl-3-pheny1-4-(4 *-methylphenyl)-pyrrolidin-2-on (cis-lo), smp. 113-114°C, 25 3-phenyl-4-(4’-methoxyphenyl)-pyrrolidin-2-on (cis-Ip), smp. 156-159°C, 3-phenyl-4-(3',4'-dimethoxyphenyl)-pyrrolidin-2-on (cis-Iq), smp. 144-146°C, 3-(4'-fluorphenyl)-4-(4'-trifluormethylphenyl)-pyrrolidin-30 2-on (cis-lu), smp. 203-204°C.
Eksempel 3.
1.5- Dimethy1-4-(4 * -nitrophenyl)-pyrrolidin-2-on (Ir) 4,32 g af forbindelsen med formlen In sættes gradvis til 30 ml rygende salpetersyre ved -5 til 0°C. Efter 1 time ved 35 -10°C hældtes opløsningen i 300 ml vand. Ekstraktion med
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11 ethylacetat og vask med hydrogencarbonatopløsning og vand gav efter afdampning af opløsningsmidlet 4,89 g (91,6$) af forbindelsen med formlen Ir. Krystallisation fra acetone-ether 1:3 gav krystaller med smp. 94-95°C.
5 Eksempel 4.
1,5-Dimethy1-4-(41-chlorphenyl)-pyrrolidin-2-on (It)
En opløsning af 4,89 g (20,9 mmol) af forbindelsen med formlen Ir i 50 ml methanol og 0,49 g 10$1 s palladium-på-kul anbragtes i en 250 ml hydrogeneringskolbe og hydrogeneredes i 10 30 timer ved stuet emp er atm*. Katalysatoren filtreredes fra, og methanolet af dampedes i vakuum. Den resulterende 1,5-dimethyl-4-(4,-aminophenyl)-pyrrolidin-2-on (is) isoleret i 100$ udbytte opløstes i 12 ml l8$'s saltsyre i et 250 ml bægerglas og behandledes dråbevis med 5,23 ml 4 ΪΓ natrium-15 nitrit opløsning ved 0-5°C. Efter 5 minutter ved 0°C sønderdeltes overskydende nitrit med urinstof. Efter 10 minutter ved 0-5°C sattes diazoniumopløsningen dråbevis til en frisk-fremstillet opløsning af CuGl (20,9 mmol) i 8 ml 37$'s saltsyre ved 0°C. Et brunt bundfald dannedes øjeblikkeligt og 20 opvarmedes til 60°C i 1 time. Ekstraktion med chloroform og vask med vand gav 4,30 g råt reaktionsprodukt efter ind-dampning. Efter filtrering gennem 130 g silicagel genvandtes 3,80 g (8l$) af forbindelsen med formlen It som et gummiag-tigt stof.
25 Eksempel 5.
4-Amino-2-phenyl-3-( 41 -tri fluormethylphenyl)-smørsyr e-hydro-chlorid (iIIg-HCl) 9,15 g af forbindelsen med formlen cis-lg suspenderedes i 300 ml 25$'s HCl-opløsning i en 500 ml kolbe og tilbage-30 svaledes i 13 timer. Fortynding med 300 ml vand og inddamp-ning i vakuum til tørhed gav en krystallinsk hvid remanens som suspenderedes i ether natten over til fjernelse af
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12 eventuelt lactam. Filtrering og vask med ether gav 9,65 g (89,4$) af forbindelsen med formlen IIIg-HCl med smp. 182-183°C.
' Analyse beregnet for HgO (368,8) 5 Fundet:' C 55,84$, H 4,96$, Ή 3,79$
Beregnet: C 55,37$, H 4,85$, N 3,80$.
Følgende hydrochlorider fremstilledes analogt: 4-Amino-2,3-dipheny1-smørsyre-HC1 (IIIa-HCl), smp. 210-222°C, 10 4-amino-3-(4’-fluorphenyl)-2-phenyl-smørsyre-HCl (iIId-HCl), smp. 190-195°C, 4-amino-2-(4’-fluorphenyl)-3-phenyl-smørsyre-HCl (Ule-HCl), smp. 170-175°C, 4-amino-3-(4'-methylphenyl)-2-phenyl-smørsyre-HCl (iIIf-HCl), 15 smp. 210-2l6°C, 4-amino-2-(21-fluorphenyl)-3-(41-trifluormethylphenyl)-smørsyre-HCl (iIIh-HCl), smp. l82-l85°C, 4-amino-2-(4’-fluorphenyl)-3-(4'-trifluormethylphenyl)-smørsyre-HCl (iIIu-HCl), smp. 200-203°C, 20 4-amino-3-(41-trifluormethylphenyl)-smørsyre-HCl (iIIk-HCl), smp. 175-177°C, 4-amino-2-methyl-3-( 41 -trifluormethylphenyl)-smørsyre-HCl (III1-HC1), 4-methylamino-4-methyl-3-phenyl-smørsyre-HCl (IIIn-HCl), 25 smp. 165-175°C, 4-amino-3-(4'-methoxyphenyl-2-phenyl-smørsyre-HCl (IIIp-HCl), smp. 190-210°C, '4-amino-3-(3',4'-dimethoxyphenyl)-2-phenyl-smørsyre-HCl *(IIIg-HCl), smp. 230-233°C.
30 Eksempel 6, 3,4-Diphenylpyrrolidin (Ila)
En opløsning af 1,185 g cis-3,4-diphenylpyrrolidin-2-on (la) i 30 ml tetrahydrofuran (THF) sattes langsomt til en
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13 suspension af 0,950 g lithiumaluminiumhydrid (LAH) og til-bagesvaledes i 7 timer. Efter afkøling tilsattes 5 ml ethyl-acetat til nedbrydning af overskydende LAH og 7 nil vand til dannelse af hydroxider. Suspensionen filtreredes og vaske-5· des med THF. THE fjernedes i vakuum» og remanensen optoges i chloroform og ekstraheredes to gange med 50 ml 2 F svovlsyre. Vandfasen behandledes med 2 F FaOH-opløsning til basisk reaktion og ekstraheredes med chloroform. Krystallisation af remanensen fra methylenchlorid gav krystaller med smp. ly 169-172°C. 0,05 ml 37$'s HCl-opløsning sattes til en opløsning af 0,100 g af forbindelsen med formlen Ila opløst i 3 ml methanol. Inddampning og suspension i ether gav 0,111 g af forbindelsen med formlen Ila-HCl med smp. 74-84°C.
Eksempel 7.
15 F-f (41 -Trifluormethylbenzoyl)methyl]-2-bromacetamid (XHk)
En opløsning af 51,16 g (0,609 mol) natriumhydrogencarbonat i 550 ml vand sattes under nitrogen ved 0 til 10°C til en tofaseopløsning af 48,5 g (0,203 mol) 2-amino-4,-trifluor-methylacetophenonhydrochlorid (Xlk) i 250 ml vand og 250 20 ml ether. En anden opløsning af 18,41 ml (0,223 mol) brom-acetylchlorid i 200 ml tør ether sattes i løbet af 15 minutter til ovennævnte suspension under omrøring ved 0 til 5°C.
Den i begyndelsen tyktflydende suspension blev efterhånden mere tyndtflydende. Efter omrøring i 2 timer tilsattes 25 ethylacetat, indtil en klar tofaseopløsning var opnået. Vandet skiltes fra, og ethylacetat-etheropløsningen vaskedes med vand til neutralitet. Inddampning i vakuum gav 62,3 g (95$) af forbindelsen XHk. En omkrystalliseret prøve havde et smp. på 201-211°C.
30 Eksempel 8.
H-f(4,-lrifluormethylbenzoyl)methyl1-2-(triphenylphosphonium-bromid)-acetamid (XHIk) 70,5 g (0,269 mol) triphenylphosphin sattes til en suspen-
DK 157847 B
14 sion af 62,36 g (0,192 mol) af forbindelsen med formlen Xllk i 600 ml benzen. Efter 4 dages omrøring ved stuetemperatur opsamledes det faste stof og suspenderedes i 250 ml acetone i 3 timer. Filtrering gav 77,66 g (69$) af forbindelsen med 5 formlen XHIk med smp. 250-251°C.
Eksempel 9· 4-(41 --Trifluormeth.ylph.enyl)-3-pyrrolin-2-on (Vk) 72,5 ml 2 U NaOH-opløsning sattes under nitrogen langsomt til en opløsning af 77,6 g (0,132 mol) af forbindelsen med 10 formlen XHIk i 780 ml methanol, idet temperaturen holdtes under 40°0. Efter 1 times omrøring tilsattes 15 ml 2 If HC1-opløsning til opnåelse af et pH på ca. 6,5. Methanolet af-dampedes delvis i vakuum og fjernedes fuldstændigt efter tilsætning af 200 ml vand. Bundfaldet opsamledes og vaskedes 15 med vand. Efter tørring suspenderedes remanensen, som vejede . 67,25 g, i 200 ml methylenchlorid i 2 timer. Filtrering gav 27,3 g (91$) af forbindelsen med formlen Vk med smp. 208-220°C (sønderdeling).
Eksempel 10.
20 4-(41-Trifluormethylphenyl)-pyrrolidin-2-on (ik)
En opløsning af 27,2 g (0,12 mol) af forbindelsen med formlen Vk i 500 ml methanol (delvis suspenderet) hydrogeneredes i 10 timer med 4,1 g 10$'s Pd på kul som katalysator. Filtrering og inddampning i vakuum gav 27,5 g (100$) af 25 forbindelsen med formlen Ik. En omkrystalliseret (acetone-ether 1:2) prøve havde smp. 121-122°C.
Analyse for C^H^qF^HO: beregnet: C 57,64$, H 4,40$, IT 6,11 fundet C 57,65$, H 4,38$, ΪΓ 6,35$.
DK 157847 B
15
Eksempel 11.
4-Amino-3-(41-trifluormethylphenylj-smørsyre-HCl (iIIk-HDl) 11,45 g (50 mmol) af forbindelsen med formlen Ik tilbage-svaledes i 15 timer i 100 ml 25$’s HOl-opløsning. Efter for-5 tynding med vand og ekstraktion med ether afdampedes vandfasen i vakuum. Remanensen suspenderedes i lidt ether og opsamledes: 13,45 g (95$) af forbindelsen med formlen Illk-HC1 med smp. 175-177°0.
Analyse for O^H^ClE^Ogi 10 beregnet: C 46,57$, H 4,62$, N 4,94$ fundet: C 46,44$, H 4,67$, Ή 5,06$.
Claims (7)
1. Fremgangsmåde til fremstilling af en pyrrolidin- 2-on med formlen 4 3 R RJ hvori er hydrogen, alkyl med 1-5 carbonatomer, phenyl eller phenyl substitueret med alkyl med 1-5 carbonatomer, R3 er hydrogen, alkyl med 1-5 carbonatomer, phenyl eller phenyl substitueret med halogen, carboxyl, alkyl med 1-5 10 carbonatomer, halogenalkyl med 1-5 carbonatomer, eller alkoxy med 1-5 carbonatomer, idet R3 er forskellig fra hydrogen eller alkyl, når R1 er hydrogen, R4 er phenyl eller phenyl substitueret med halogen, carboxyl, alkyl med 1-5 carbonatomer, halogenalkyl med 1-5 carbonatomer eller 15 alkoxy med 1-5 carbonatomer, R^ er hydrogen eller alkyl med 1-5 carbonatomer, og R3' er hydrogen eller alkyl med 1-5 carbonatomer, idet enten R3 eller R3' betyder hydrogen, kendetegnet ved, at man ringslutter en forbindelse med formlen DK 157847 B R4 R3 K5>\ <IV) R \sr^ 0 i1 eller 4 ® « R PPh-.Br0 R0>=° 4r3
15 X \ (XIII) R5' \ /\> i3 hvori R1, R3, R4, R3 og R3' har den ovenfor angivne betydning, i basisk medium og i fravær af oxygen til 5 dannelse af en 3-pyrrolin-2-on med formlen R4 R3 . χ—X R5 i1 hvori Ri, R3, R4, R3 og R3' har den ovenfor angivne betydning, hvorefter man hydrogenerer en dannet 3-pyrrolin-2-on med formlen V i nærværelse af en virksom 10 hydrogeneringskatalysator.
2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at man gennemfører ringslutningen af forbindelen med formlen DK 157847 B IV med kalium-tert-butoxid i tert-butanol.
3. Fremgangsmåde ifølge krav 1, kendetegnet ved, at man gennemfører ringslutningen af forbindelsen med formlen
4. Fremgangsmåde ifølge krav 2 og 3, kendetegnet ved, at man efter ringslutningen gør mediet surt i fravær af oxygen og fortynder det med vand.
5. Fremgangsmåde ifølge krav 1, kendetegnet ved, at 10 man gennemfører hydrogeneringen under anvendelse af en katalysator til dannelse af 3,4-cis-isomeren af en pyrrolidin-2-on.
5 XIII med 2 N natriumhydroxidopløsning i methanol.
6. Fremgangsmåde ifølge krav 5, kendetegnet ved, at katalysatoren er palladium-kul, platin eller rhodium, 15 eventuelt i form af et optisk aktivt kompleks til fremstilling af en optisk aktiv isomer af cis-pyrrolidin-2-onen. t
7. Fremgangsmåde ifølge krav 5, kendetegnet ved, at man omdanner cis-isomeren til den tilsvarende transisomer 20 ved behandling med syre eller base.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91468278A | 1978-06-12 | 1978-06-12 | |
US91468278 | 1978-06-12 | ||
US1249679A | 1979-02-15 | 1979-02-15 | |
US1249679 | 1979-02-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK241779A DK241779A (da) | 1979-12-13 |
DK157847B true DK157847B (da) | 1990-02-26 |
DK157847C DK157847C (da) | 1990-09-17 |
Family
ID=26683628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK241779A DK157847C (da) | 1978-06-12 | 1979-06-11 | Fremgangsmaade til fremstilling af pyrrolidin-2-oner |
Country Status (19)
Country | Link |
---|---|
AR (1) | AR222997A1 (da) |
AT (1) | ATA386679A (da) |
AU (1) | AU529479B2 (da) |
CA (1) | CA1108628A (da) |
CH (1) | CH650772A5 (da) |
DE (3) | DE2954237C2 (da) |
DK (1) | DK157847C (da) |
ES (1) | ES481315A1 (da) |
FI (1) | FI70209C (da) |
FR (1) | FR2434151A1 (da) |
GB (1) | GB2028307B (da) |
GR (1) | GR68438B (da) |
IL (1) | IL57266A (da) |
IT (1) | IT1116891B (da) |
NL (1) | NL7904584A (da) |
NO (1) | NO791943L (da) |
NZ (1) | NZ190705A (da) |
PT (1) | PT69716A (da) |
SE (1) | SE431644B (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US4943640A (en) * | 1983-10-14 | 1990-07-24 | The Dow Chemical Company | Preparation of 5-(1-alkyl-carbonyloxy)alkylpyrrolidin-2-one |
AU4809390A (en) * | 1988-12-27 | 1990-08-01 | Ici Americas Inc. | Process for the preparation of 3-carboalkoxypyrrolidones |
US5021587A (en) * | 1990-01-24 | 1991-06-04 | Petrolite Corporation | Synthesis of N,3,4-trisubstituted-3-azoline-2-ones |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US3272842A (en) * | 1965-06-25 | 1966-09-13 | Lilly Co Eli | Novel pyrrolinones |
GB1350582A (en) * | 1970-07-24 | 1974-04-18 | Ucb Sa | Cerivatives of 2-pyrrolidinone |
DE2413935A1 (de) * | 1974-03-20 | 1975-10-16 | Schering Ag | 4-(polyalkoxy-phenyl)-2-pyrrolidone |
-
1979
- 1979-05-14 IL IL57266A patent/IL57266A/xx unknown
- 1979-05-15 GR GR59088A patent/GR68438B/el unknown
- 1979-05-17 AR AR276559A patent/AR222997A1/es active
- 1979-05-28 AT AT793866A patent/ATA386679A/de not_active Application Discontinuation
- 1979-06-01 AU AU47670/79A patent/AU529479B2/en not_active Ceased
- 1979-06-01 PT PT69716A patent/PT69716A/pt unknown
- 1979-06-06 ES ES481315A patent/ES481315A1/es not_active Expired
- 1979-06-08 CA CA329,322A patent/CA1108628A/en not_active Expired
- 1979-06-09 DE DE2954237A patent/DE2954237C2/de not_active Expired
- 1979-06-09 DE DE2954236A patent/DE2954236C2/de not_active Expired
- 1979-06-09 DE DE19792923553 patent/DE2923553A1/de active Granted
- 1979-06-11 IT IT49373/79A patent/IT1116891B/it active
- 1979-06-11 FR FR7914907A patent/FR2434151A1/fr active Granted
- 1979-06-11 SE SE7905079A patent/SE431644B/sv not_active IP Right Cessation
- 1979-06-11 DK DK241779A patent/DK157847C/da not_active IP Right Cessation
- 1979-06-11 NO NO791943A patent/NO791943L/no unknown
- 1979-06-11 GB GB7920275A patent/GB2028307B/en not_active Expired
- 1979-06-12 FI FI791866A patent/FI70209C/fi not_active IP Right Cessation
- 1979-06-12 CH CH5496/79A patent/CH650772A5/de not_active IP Right Cessation
- 1979-06-12 NL NL7904584A patent/NL7904584A/xx not_active Application Discontinuation
- 1979-06-12 NZ NZ190705A patent/NZ190705A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ES481315A1 (es) | 1980-08-16 |
AR222997A1 (es) | 1981-07-15 |
GB2028307A (en) | 1980-03-05 |
DE2923553C2 (da) | 1988-06-01 |
CA1108628A (en) | 1981-09-08 |
AU529479B2 (en) | 1983-06-09 |
FI70209B (fi) | 1986-02-28 |
GB2028307B (en) | 1983-01-19 |
ATA386679A (de) | 1983-12-15 |
NL7904584A (nl) | 1979-12-14 |
SE431644B (sv) | 1984-02-20 |
IT7949373A0 (it) | 1979-06-11 |
SE7905079L (sv) | 1979-12-13 |
CH650772A5 (de) | 1985-08-15 |
IT1116891B (it) | 1986-02-10 |
FI70209C (fi) | 1986-09-15 |
PT69716A (en) | 1979-07-01 |
DE2954237C2 (da) | 1989-09-21 |
NO791943L (no) | 1979-12-13 |
IL57266A (en) | 1982-12-31 |
GR68438B (da) | 1981-12-30 |
FI791866A (fi) | 1979-12-13 |
IL57266A0 (en) | 1979-09-30 |
FR2434151A1 (fr) | 1980-03-21 |
NZ190705A (en) | 1981-10-19 |
AU4767079A (en) | 1979-12-20 |
DK157847C (da) | 1990-09-17 |
DE2923553A1 (de) | 1979-12-20 |
DK241779A (da) | 1979-12-13 |
FR2434151B3 (da) | 1982-04-30 |
DE2954236C2 (da) | 1988-10-06 |
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