Title:
【発明の名称】1―アミノ―2―クロル―4―ヒドロキシ―アントラキノンの製造方法
Document Type and Number:
Japanese Patent JP2730991
Kind Code:
B2
Abstract:
Preparation of 1-amino-2-chloro-4-hydroxy-anthraquinone (I) …… by chlorination of 1-amino-4-hydroxy-anthraquinone (II) …… which entails carrying out the chlorination in 90 to 100% by weight sulphuric acid or in up to 2% by weight oleum.
Inventors:
GEERUHARUTO EPURE
Application Number:
JP24660189A
Publication Date:
March 25, 1998
Filing Date:
September 25, 1989
Export Citation:
Assignee:
BEE AA ESU EFU AG
International Classes:
C07C225/36; C07C221/00; C09B1/50; C09B1/503; (IPC1-7): C07C225/36; C07C221/00
Domestic Patent References:
| JP462073A | ||||
| JP62298564A | ||||
| JP56167646A | ||||
| JP5018526A |
Other References:
【文献】英国特許1447194(GB,B)
【文献】西独国特許公開2428337(DE,A)
【文献】西独国特許公開2428337(DE,A)
Attorney, Agent or Firm:
Tajiro Taiji