EP1303493A1 - Verfahren zur herstellung von n,n'-carbonyldiazolen und azolidsalzen - Google Patents
Verfahren zur herstellung von n,n'-carbonyldiazolen und azolidsalzenInfo
- Publication number
- EP1303493A1 EP1303493A1 EP01945342A EP01945342A EP1303493A1 EP 1303493 A1 EP1303493 A1 EP 1303493A1 EP 01945342 A EP01945342 A EP 01945342A EP 01945342 A EP01945342 A EP 01945342A EP 1303493 A1 EP1303493 A1 EP 1303493A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formula
- alkyl
- mol
- azolide
- solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- CFGDUGSIBUXRMR-UHFFFAOYSA-N 1,2-dihydropyrrol-2-ide Chemical class C=1C=[C-]NC=1 CFGDUGSIBUXRMR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000002904 solvent Substances 0.000 claims abstract description 23
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims abstract description 18
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 18
- AVDNGGJZZVTQNA-UHFFFAOYSA-N di(pyrrol-1-yl)methanone Chemical class C1=CC=CN1C(=O)N1C=CC=C1 AVDNGGJZZVTQNA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 238000002360 preparation method Methods 0.000 claims description 15
- -1 alkaline earth metal cation Chemical class 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 11
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000011541 reaction mixture Substances 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 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 claims description 7
- 239000003444 phase transfer catalyst Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 229910052794 bromium Inorganic materials 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 150000004010 onium ions Chemical group 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 150000002500 ions Chemical group 0.000 claims 1
- 125000006187 phenyl benzyl group Chemical group 0.000 claims 1
- 125000001453 quaternary ammonium group Chemical group 0.000 claims 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 46
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 239000002244 precipitate Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 150000003851 azoles Chemical class 0.000 description 5
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical class C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- IWRRRCZSVINKHU-UHFFFAOYSA-N pyrazol-3-ylidenemethanone Chemical compound O=C=C1C=CN=N1 IWRRRCZSVINKHU-UHFFFAOYSA-N 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- LFDGRWDETVOGDT-UHFFFAOYSA-N 1h-pyrrole;hydrochloride Chemical class Cl.C=1C=CNC=1 LFDGRWDETVOGDT-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- RYVBINGWVJJDPU-UHFFFAOYSA-M tributyl(hexadecyl)phosphanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[P+](CCCC)(CCCC)CCCC RYVBINGWVJJDPU-UHFFFAOYSA-M 0.000 description 3
- YNCPXBIZAPNQIJ-UHFFFAOYSA-N 1h-imidazole;sodium Chemical compound [Na].C1=CNC=N1 YNCPXBIZAPNQIJ-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- YKFRUJSEPGHZFJ-UHFFFAOYSA-N N-trimethylsilylimidazole Chemical compound C[Si](C)(C)N1C=CN=C1 YKFRUJSEPGHZFJ-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000003849 aromatic solvent Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 150000004816 dichlorobenzenes Chemical class 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M lithium hydroxide Inorganic materials [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000003738 xylenes Chemical class 0.000 description 2
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical class ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- DFYQRCOZAAHDOU-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethanol;2-[2-(2-hydroxyethoxy)ethoxy]ethanol Chemical compound OCCOCCO.OCCOCCOCCO DFYQRCOZAAHDOU-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical class C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- YHNUDLCUIKMNSN-UHFFFAOYSA-N bis(1,2,4-triazol-1-yl)methanone Chemical compound C1=NC=NN1C(=O)N1C=NC=N1 YHNUDLCUIKMNSN-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- JTDDTDXTQHFZST-UHFFFAOYSA-N potassium;imidazol-3-ide Chemical compound [K+].C1=C[N-]C=N1 JTDDTDXTQHFZST-UHFFFAOYSA-N 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
- C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
- C07D235/06—Benzimidazoles; Hydrogenated benzimidazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
- C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
Definitions
- the present invention relates to improved processes for the preparation of N, N'-carbonyldiazoles by reacting azolide salts with phosgene and for the preparation of azolide salts,
- N, N'-Ca bonyldiazole can be obtained if azoles are reacted with phosgene (see DE-AS 10 33 210, Chem. Ber. 96, 337 '4 (1963) and Org. Synth. Coll. Vol. IV, 201-204 (1968) and BP-A 692 476).
- a disadvantage of all of these processes is that the adhesion of the azole used is used as a scavenger for the hydrogen chloride formed and therefore only a maximum of 50% of the azole used can be converted into the desired carbonyldiazole. This is a serious disadvantage since azoles are expensive products and therefore a large azole consumption causes high manufacturing costs. Furthermore, some of the azole hydrochlorides are obtained as a sticky precipitate which is difficult to separate from the carbonyldiazole prepared. Finally, the azole hydrochloride formed as a by-product has to be disposed of, which causes additional costs.
- chlorotrimethylsilane is formed again, which can be used again in the reaction after purification.
- a disadvantage of this method are the many stages of synthesis and purification as well as the chlorotrimethylsilane, which is difficult to handle due to its hygroscopic and corrosive properties.
- a total of three auxiliaries are to be used for this N, N'-carbonyldiimidazole synthesis, namely, chlorotrimethylsilane, 1,2-diaminoethane and sodium hydroxide solution.
- the amine, the imidazole and the solvent required for the trimethylsilylimidazole synthesis have to be dried in a complex manner.
- X 1 , X 2 and X 3 each independently represent CR 1 or nitrogen, where R 1 is hydrogen or Ci-Cg-alkyl and
- R2 stands for hydrogen
- M® stands for an equivalent of an alkali or alkaline earth metal cation or a quaternary omurnion of the formula (TU)
- R 3 , *, R. 5 and R 6 each independently represent CC 2 o-alkyl, phenyl, benzyl or ethylbenzyl and
- ⁇ stands for 1 mole of lithium, sodium or potassium cations.
- Sodium or potassium imidazolide or the corresponding -1,2,4-triazolides, -pyrazolides or -benzimidazolides are particularly preferably used and N, N'-carbonyl-diimidaz ⁇ l, N, N'-carbonyl-di (1,2,4- triazole) s N, N'-carborryl-dipyrazole or NJST-carbonyl-dibenzimidazole.
- phosgene for example, 0.25 to 0.60 mol of phosgene can be used per 1 mol of azolide salt of the formula (II). This amount is preferably 0.45 to 0.55 mlJ
- Aromatic solvents such as benzene, toluene, xylenes, monochlorobenzene, dichlorobenzenes and trichlorobenzenes and ethers such as acyoliscl ⁇ e and cyclic mono- and oligoethers, for example diethyl ether, diisopropyl ether, methyl tert-butyl ether, dibmyl ether, ethylene glycol dimethyl ether, diethylene glycol triethylene glycol, are suitable as solvents ethyl ether, tetrahydrofuran, 2-methyl-tetrahydrofura ⁇ i and dioxane. Mixtures of these solvents can also be used.
- 2-methyl-tetrahydrofuran and aromatic solvents in particular benzene, toluene, xylenes, monochlorobenzene, dichlorobenzenes and mixtures of these solvents.
- the preferred solvents can be easily dried, e.g. by azeotropic distillation. A water content of the solvent of less than 0J% is preferred.
- the process according to the invention can be carried out, for example, at temperatures in the range from 10 to 120 ° C. Temperatures in the range from 20 to 100 ° C. are preferred, in particular from 40 to 100 ° C.
- the Rcak tion temperature at least so high that the N, N-carbonyldiazole of formula (I) does not precipitate during the reaction.
- Azolide salts of the formula (II) are, for example, according to I A. Chem. Soc. 102, 4182 or EP-A 352 352.
- these processes are cumbersome and complex because either reagents that are difficult to handle (e.g. sodium hydride or butyllithium) are required or the azolide salt has to be isolated and purified.
- reagents that are difficult to handle e.g. sodium hydride or butyllithium
- a particularly favorable process for the preparation of azolide salts of the formula ( ⁇ I) has also been found, the details of which are described below.
- Azolide salts of the formula (II) which have been prepared by the process according to the invention for the preparation of azolide salts of the formula (II) are preferably used in the process according to the invention for the preparation of N, N'-carbonyl-diazoles of the formula (I).
- phase transfer catalysts come e.g. those of the formulas (VIII) to (X) into question
- R 3 , R 4 , R 5 and R ⁇ have the meaning given for formula (III),
- io each independently represents C r C 2 Q-alkyl, phenyl, benzyl or ethylbenzyl,
- R 11 has the same meaning as R 1 ° regardless of l °
- Z- stands for Cl “, Br, I-, OH", HSO4-, BF 4 "or PF 6 ".
- Azoles of the formula (TV) can also be used as phase transfer catalysts.
- azolide salt of formula (II) e.g. Use 0.0001 to 0.2 mol, preferably 0.001 to 0.02 mol, of a phase transfer catalyst,
- This chloride precipitates out during the production of N, N-carbonyldiazole.
- the reaction mixture can be worked up, for example, i separates first the one n the chloride formed, for example by filtration or waste hebem of the liquid components and from the filtrate or the tillheberten liquid ⁇ ness the hergestclte N, N'-carbonyldiazole isolated either by cooling to +40 to -70 ° C, preferably to +25 to -20 ° C, but not as 5 ° C above the solidification point of the solvent used, and filtering off the crystallizing product or the volatile Withdrawing or distilling off constituents, the product is thus obtained in solid form.
- N, N'-carbonyldiazoles has the advantage that the entire azole or azolide salt used is available for the formation of N, N'-caxbonyldiazole and not half of it is converted into azole hydrochloride.
- the yields of N, N'-cafbonyldiazole are around twice as high as in the direct reaction of azoles with phosgene.
- the present invention further relates to a process for the preparation of azolide salts of the formula (I ⁇ ), which is characterized in that an azole of the formula (IV)
- M 1 represents an equivalent of an alkali or alkaline earth metal, but not a quaternary onium ion of the formula (III),
- R 7 is OR ', N (R 9) 2 or l / 2 C0 3, wherein
- R 9 is C r C 6 alkyl or phenyl
- R 8 for C r C 6 alkyl or phenyl
- M ' preferably represents lithium, sodium or potassium and R 7 preferably OR 9 with R 9 - hydrogen or methyl.
- R 8 is preferably methyl. Ethyl or phenyl and Z 'preferably for chlorine or bromine.
- the solvent can be, for example, one of the solvents mentioned above for carbonyldiazole synthesis or mixtures thereof with a solvent of the formula (VII)
- R 7 has the meaning given for formula (V), but cannot stand for I A CO 3 .
- lithium, sodium or potassium hydroxide is used as the compound of the formula (V) and water is used as a solvent in a mixture with chlorobenzene, toluene or xylene, and water which has been introduced and distilled is distilled azeotropically, or sodium methylate is used as the compound of formula (V) and methanol is used as a solvent in a mixture with chlorobenzene or xylene, and methanol which has been introduced and formed is distilled off.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10035011 | 2000-07-19 | ||
DE10035011A DE10035011A1 (de) | 2000-07-19 | 2000-07-19 | Verfahren zur Herstellung von N,N`-Carbonyldiazolen und Azolidsalzen |
PCT/EP2001/007731 WO2002018347A1 (de) | 2000-07-19 | 2001-07-06 | Verfahren zur herstellung von n,n'-carbonyldiazolen und azolidsalzen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1303493A1 true EP1303493A1 (de) | 2003-04-23 |
Family
ID=7649398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01945342A Withdrawn EP1303493A1 (de) | 2000-07-19 | 2001-07-06 | Verfahren zur herstellung von n,n'-carbonyldiazolen und azolidsalzen |
Country Status (5)
Country | Link |
---|---|
US (2) | US6465658B2 (de) |
EP (1) | EP1303493A1 (de) |
AU (1) | AU2001267587A1 (de) |
DE (1) | DE10035011A1 (de) |
WO (1) | WO2002018347A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10359797A1 (de) * | 2003-12-19 | 2005-07-21 | Bayer Chemicals Ag | Verfahren zur Herstellung von N,N'-Carbonyldiazolen |
JP2011506468A (ja) * | 2007-12-11 | 2011-03-03 | ザ リージェンツ オブ ザ ユニバーシティ オブ コロラド,ア ボディー コーポレイト | ヘテロアリール塩ならびにその同一物を生成および使用するための方法 |
EP2620139B1 (de) | 2008-02-27 | 2016-07-20 | Biomet Biologics, LLC | Interleukin-1-Rezeptorantagonisten-reiche Lösungen |
CN108084094A (zh) * | 2017-11-09 | 2018-05-29 | 江苏康乐佳材料有限公司 | 一种以咪唑为原料制备咪唑钠的工艺 |
CN113754608A (zh) * | 2020-06-02 | 2021-12-07 | 石家庄圣泰化工有限公司 | 一种二恶唑酮类化合物的合成方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1033210B (de) | 1956-12-06 | 1958-07-03 | Basf Ag | Verfahren zur Herstellung von Kohlensaeureamiden von Imidazolen, Triazolen und Tetrazolen |
DE3865675D1 (de) * | 1988-07-28 | 1991-11-21 | Uriach & Cia Sa J | 1-((2-fluorophenyl)(4-fluorophenyl)phenylmethyl)-1h-imidazol. |
US4927833A (en) * | 1989-01-23 | 1990-05-22 | The Dow Chemical Company | Substituted azoles and their use as fungicides |
DE4424400A1 (de) | 1994-07-11 | 1996-01-18 | Bayer Ag | Verbessertes Verfahren zur Herstellung von N,N'-Carbonyldiazolen, insbesondere N,N'-Carbonyldiimidazol |
WO1998031672A1 (en) * | 1997-01-17 | 1998-07-23 | Ppg Industries Ohio, Inc. | Method of producing n,n'-diazole compounds |
DE19833913A1 (de) * | 1998-07-28 | 2000-02-03 | Bayer Ag | Verfahren zur Herstellung von N,N'-Carbonyldiazolen |
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2000
- 2000-07-19 DE DE10035011A patent/DE10035011A1/de not_active Withdrawn
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2001
- 2001-07-06 AU AU2001267587A patent/AU2001267587A1/en not_active Abandoned
- 2001-07-06 EP EP01945342A patent/EP1303493A1/de not_active Withdrawn
- 2001-07-06 WO PCT/EP2001/007731 patent/WO2002018347A1/de not_active Application Discontinuation
- 2001-07-17 US US09/907,320 patent/US6465658B2/en not_active Expired - Fee Related
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2002
- 2002-08-15 US US10/219,373 patent/US6774239B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO0218347A1 * |
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US20020111497A1 (en) | 2002-08-15 |
WO2002018347A1 (de) | 2002-03-07 |
DE10035011A1 (de) | 2002-01-31 |
US6465658B2 (en) | 2002-10-15 |
US6774239B2 (en) | 2004-08-10 |
AU2001267587A1 (en) | 2002-03-13 |
US20030013891A1 (en) | 2003-01-16 |
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