发明公开
EP0092909A2 Process for producing aminophenyl-beta-hydroxyethylsulfone
失效
一种用于生产氨基苯基-β-hydroxyethylsulfone过程。
- 专利标题： Process for producing aminophenyl-beta-hydroxyethylsulfone
- 专利标题（中）： 一种用于生产氨基苯基-β-hydroxyethylsulfone过程。
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申请号： EP83301683.5申请日： 1983-03-25
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公开(公告)号： EP0092909A2公开(公告)日： 1983-11-02
- 发明人: Kotera, Norio , Tada, Kazuhiro , Masaki, Shinzaburo , Goto, Kunihisa , Kaneoya, Tatsuo
- 申请人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 申请人地址： Kitahama 4-chome 5-33 Chuo-ku Osaka 541 JP
- 专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人地址： Kitahama 4-chome 5-33 Chuo-ku Osaka 541 JP
- 代理机构： VOSSIUS & PARTNER
- 优先权： JP57483/82 19820406; JP57484/82 19820406; JP57485/82 19820406; JP57486/82 19820406
- 主分类号： C07C147/12
- IPC分类号： C07C147/12 ; B01J27/20 ; B01J25/02 ; B01J23/74
摘要：
A process for producing aminophenyl-β-hydroxyethylsulfone of the formula (I),
which comprises steps:
(1) condensing nitrohalobenzene with mercaptoethanol in the presence of an alkali hydroxide and at least one reaction medium selected from N-alkyl-substituted amides and sulfoxides to produce mono-nitrophenyl-β-hydroxyethylsulfide of the formula (II):
(2) oxidizing the mononitrophenyl-β-hydroxyethylsulfide (II) to produce mononitrophenyl-β-hydroxyethylsulfone of the formula (III):
and (3) reducing the mononitrophenyl-β-hydroxyethylsulfone to produce the aminophenyl-β-hydroxyethylsulfone of the formula (I). This compound is useful as an intermediate for aminophenyl-β-sulfatoethylsulfone represented by the following formula:
which is an important intermeidate for vinyl sulfone type reactive dyes largely used for dyeing cellulose fiber materials.
which comprises steps:
(1) condensing nitrohalobenzene with mercaptoethanol in the presence of an alkali hydroxide and at least one reaction medium selected from N-alkyl-substituted amides and sulfoxides to produce mono-nitrophenyl-β-hydroxyethylsulfide of the formula (II):
(2) oxidizing the mononitrophenyl-β-hydroxyethylsulfide (II) to produce mononitrophenyl-β-hydroxyethylsulfone of the formula (III):
and (3) reducing the mononitrophenyl-β-hydroxyethylsulfone to produce the aminophenyl-β-hydroxyethylsulfone of the formula (I). This compound is useful as an intermediate for aminophenyl-β-sulfatoethylsulfone represented by the following formula:
which is an important intermeidate for vinyl sulfone type reactive dyes largely used for dyeing cellulose fiber materials.
公开/授权文献
- EP0092909B1 Process for producing aminophenyl-beta-hydroxyethylsulfone 公开/授权日：1987-08-19
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