JP4795738B2 - ビスホルミル化アリールアミン類の製造方法 - Google Patents
ビスホルミル化アリールアミン類の製造方法 Download PDFInfo
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- JP4795738B2 JP4795738B2 JP2005206522A JP2005206522A JP4795738B2 JP 4795738 B2 JP4795738 B2 JP 4795738B2 JP 2005206522 A JP2005206522 A JP 2005206522A JP 2005206522 A JP2005206522 A JP 2005206522A JP 4795738 B2 JP4795738 B2 JP 4795738B2
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- 150000004982 aromatic amines Chemical class 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 14
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 28
- -1 arylamine compound Chemical class 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 16
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 10
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims description 8
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 7
- 229920002866 paraformaldehyde Polymers 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 30
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 30
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 30
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-UHFFFAOYSA-N 0.000 description 27
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 13
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 12
- 150000007524 organic acids Chemical class 0.000 description 11
- 238000005874 Vilsmeier-Haack formylation reaction Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 238000006364 Duff aldehyde synthesis reaction Methods 0.000 description 7
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 6
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- 230000005525 hole transport Effects 0.000 description 6
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 6
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- QQVDYSUDFZZPSU-UHFFFAOYSA-M chloromethylidene(dimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)=CCl QQVDYSUDFZZPSU-UHFFFAOYSA-M 0.000 description 5
- 150000007522 mineralic acids Chemical class 0.000 description 5
- OJBSYCMUWONLAE-UHFFFAOYSA-N n,n,4-triphenylaniline Chemical group C1=CC=CC=C1N(C=1C=CC(=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 OJBSYCMUWONLAE-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000007013 Reimer-Tiemann formylation reaction Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 3
- 238000004128 high performance liquid chromatography Methods 0.000 description 3
- 229940098779 methanesulfonic acid Drugs 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 3
- LRMSQVBRUNSOJL-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)F LRMSQVBRUNSOJL-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- YPJUNDFVDDCYIH-UHFFFAOYSA-N perfluorobutyric acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)F YPJUNDFVDDCYIH-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WROMPOXWARCANT-UHFFFAOYSA-N tfa trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F.OC(=O)C(F)(F)F WROMPOXWARCANT-UHFFFAOYSA-N 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- TZSLDTGIILADAH-UHFFFAOYSA-N 4-(4-formyl-n-(4-phenylphenyl)anilino)benzaldehyde Chemical group C1=CC(C=O)=CC=C1N(C=1C=CC(=CC=1)C=1C=CC=CC=1)C1=CC=C(C=O)C=C1 TZSLDTGIILADAH-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 101100257262 Caenorhabditis elegans soc-1 gene Proteins 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- GVGLGOZIDCSQPN-PVHGPHFFSA-N Heroin Chemical compound O([C@H]1[C@H](C=C[C@H]23)OC(C)=O)C4=C5[C@@]12CCN(C)[C@@H]3CC5=CC=C4OC(C)=O GVGLGOZIDCSQPN-PVHGPHFFSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 125000002015 acyclic group Chemical group 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 239000013058 crude material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000022244 formylation Effects 0.000 description 1
- 238000006170 formylation reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012485 toluene extract Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C221/00—Preparation of compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
化合物I
(式中、R1、R2、R3、R4、R5、R6およびR7は、それぞれ、例えば、1〜約20の炭素原子のアルキルまたは炭化水素ラジカルを示し、例えば、メチル、エチル、プロピル、ブチル、ペンチル、ステアリル、およびそれらのより高級な類似体を示す。)
化合物II
Vilsmeier反応を使用した化合物IIのビスホルミル化
例示的なReimer−Tiemann反応
例示的なDuff反応
アリールアミン化合物と、約2〜約200モル当量のアルキレンアミンとを含む酸性溶液を反応、還流させる工程を含み、アルキレンアミンがヘキサメチレンテトラアミンであってもよい方法、
2および約200モル当量のパラホルムアルデヒドおよび/または1,3,5−トリオキサンを含む酸性溶液中で、アリールアミン化合物をヘキサメチレンテトラアミンなどのアルキレンアミンと反応させる工程を含む方法、
(a)亜硫酸水素塩(bisulfite salt)溶液を提供または生成する工程と、(b)有機溶媒中にビスホルミル−アリールアミンとモノホルミル−アリールアミンとを含む複合混合物を前記亜硫酸水素塩溶液に添加する工程と、(c)有機溶媒を前記亜硫酸水素塩溶液に添加することにより、前記ビスホルミル−アリールアミンを沈澱させる工程と、を含む方法、
(a)亜硫酸水素塩(bisulfite salt)溶液を提供または生成する工程と、(b)有機溶媒中にビスホルミル−アリールアミンとモノホルミル−アリールアミンとを含む複合混合物を前記亜硫酸水素塩溶液に添加する工程と、(c)前記混合物を前記亜硫酸水素塩溶液に添加することにより、前記ビスホルミル−アリールアミンを沈澱させる工程と、を含む方法、
が挙げられる。
<N,N−ジフェニル−4−アミノビフェニル(化合物II)のビスホルミル化のための方法>
1モルのN,N−ジフェニル−4−アミノビフェニル(化合物II)をトリフルオロ酢酸(TFA)の溶液として、4モル当量のHMTAの存在下、20℃および120℃の温度で還流させた。反応物中に存在する化合物II、モノホルミル−化合物IIおよびビスホルミル−化合物IIの量を6時間にわたり、HPLCを用いて測定した。時間/変換プロットを作成した(図1参照)。このプロットでは、異なる時間での各化合物の相対量が示されている。
<Duff反応を介するN,N−ジフェニル−4−アミノビフェニル(化合物II)のビスホルミル化に対する酸触媒の影響>
表1において「条件」の下で示される酢酸、プロピオン酸、臭化水素酸を含む酢酸、メタンスルホン酸、シュウ酸、トリフルオロ酢酸(TFA)、またはホウ酸およびそれらの組み合わせを、化合物IIおよび2〜4モル当量のヘキサメチレンテトラアミン(HTMA)を含む溶液中で還流させた。化合物IIのモノ−およびビス−ホルミル化形態への変換の結果を表1において、室温(約20℃)で3時間、約85℃で2.5時間、および85℃で一晩中(約12〜約16時間)後に測定した、化合物II(非ホルミル化)の量、モノホルミル−化合物IIの量、およびビスホルミル−化合物IIの量として示す。下記表1に示されるように、約2モル当量〜約4モル当量のTFAにより、化合物IIのビスホルミル化反応が可能となった。
<共試薬(Co−reagent)によるDuff反応の加速>
酢酸および/またはトリフルオロ酢酸(TFA)ならびに酢酸およびシュウ酸と共に還流させた2.2〜4当量のヘキサメチレントリアミン(HTMA)による化合物IIのビスホルミル化に関するパラホルムアルデヒド(高分子ホルムアルデヒド)または1,3,5−トリオキサン(環状ホルムアルデヒド)の効果を、表2に示すように調べた。表2に示されるように、パラホルムアルデヒド(高分子ホルムアルデヒド)または1,3,5−トリオキサン(環状ホルムアルデヒド)のいずれかは酢酸およびTFAを還流させる混合物中でのビスホルミル化反応の速度を加速するのに適した試薬であることが見出された。ベースライン反応条件と比較することにより、いずれかの試薬を使用すると、ベースラインでは64.8%であるのと比較して、2.5時間以内にビスホルミル−化合物IIへの90%を超える変換が得られた。
<亜硫酸水素塩付加物によるビスホルミル−化合物IIの精製>
実施例5の沈澱をトルエン100mlに溶解し、モートン(Morton)フラスコ中、飽和亜硫酸水素ナトリウム500ml(新たに調製)で一晩中(約16時間)処理した。固体沈澱を濾過し、トルエンで洗浄した。固体を、飽和重炭酸ナトリウム250mlおよびトルエン250mlと共にモートンフラスコに戻した。混合物を約12〜16時間撹拌した。その後、相分離した。トルエン層を重力により硫酸マグネシウムを通して濾過することにより乾燥させた。その後、トルエンを除去すると生成物が得られた(75%、HPLCによると純度>98%)。
<化合物IIのビスホルミル化に有益な反応>
機械的撹拌機、アルゴン入口/温度制御装置および水凝縮器を備えた2Lの3首フラスコに、(a)化合物IIを66.6g、(b)ヘキサメチレンテトラアミン63.9g、(c)1,3,5−トリオキサン41.1g、(d)酢酸140mL(撹拌開始(startede))、および(e)トリフルオロ酢酸140mLをこの順に入れた。
Claims (3)
- アリールアミン化合物と、トリフルオロ酢酸と、2〜200モル当量のアルキレンアミンとを含む酸性溶液を反応、還流させる工程を含むことを特徴とするビスホルミル化アリールアミン類の製造方法。
- パラホルムアルデヒド及び1,3,5−トリオキサンのうち少なくとも1つとトリフルオロ酢酸とを含む酸性溶液中で、アリールアミン化合物をアルキレンアミンと反応させる工程を含むことを特徴とするビスホルミル化アリールアミン類の製造方法。
- (a)亜硫酸水素塩溶液を、請求項1または2に記載の方法によって得られたビスホルミル−アリールアミンおよびモノホルミル−アリールアミンを含む反応物と、混合する工程と、
(b)前記反応物を含む前記亜硫酸水素塩溶液に有機溶媒を添加する工程と、
を含むことを特徴とするビスホルミル化アリールアミン類の製造方法。
Applications Claiming Priority (2)
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US10/909,136 US7122700B2 (en) | 2004-07-30 | 2004-07-30 | Arylamine processes |
US10/909,136 | 2004-07-30 |
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JP2006045224A JP2006045224A (ja) | 2006-02-16 |
JP4795738B2 true JP4795738B2 (ja) | 2011-10-19 |
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CN104491846B (zh) * | 2014-12-04 | 2018-05-11 | 常州药物研究所有限公司 | 一种复合交联医用几丁糖制剂及其制备方法 |
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