Title:
【発明の名称】3-アミノフエニル2-ヒドロキシエチル スルホンの製造方法
Document Type and Number:
Japanese Patent JP2574402
Kind Code:
B2
Abstract:
3-Aminophenyl 2-hydroxyethyl sulphone (I) can be prepared in a high yield and purity by treating 2-chloro-5-nitrophenyl 2-hydroxyethyl sulphone (II) or 4-chloro-3-nitrophenyl 2-hydroxyethyl sulphone (III) with hydrogen in the presence of hydrogenation catalysts in an aqueous or aqueous organic medium. (II) is obtained by reducing 2-chloro-5-nitrobenzenesulphochloride with sodium sulphite and subsequently reacting the product with ethylene oxide.
Inventors:
KARURUUYOZEFU HERUTO
Application Number:
JP14187688A
Publication Date:
January 22, 1997
Filing Date:
June 10, 1988
Export Citation:
Assignee:
BAYER AG
International Classes:
C07B61/00; B01J23/44; B01J25/02; C07B35/06; C07C67/00; C07C313/00; C07C315/04; C07C317/04; C07C317/14; C07C317/36; (IPC1-7): C07C317/36; B01J23/44; B01J25/02
Domestic Patent References:
| JP58174355A | ||||
| JP60123461A | ||||
| JP4222767B1 |
Attorney, Agent or Firm:
Heiyoshi Odashima