Preparation of 1-amino-2-chloro-4-hydroxyanthraquinone

Details Preparation of 1-amino-2-chloro-4-hydroxyanthraquinone Preparation of 1-amino-2-chloro-4-hydroxyanthraquinone

1992-01-22

1993-01-19

Cintins, Marianne M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C07C22100

Patent

active

051808412

ABSTRACT:
The useful dye intermediate 1-amino-2-chloro-4-hydroxyanthraquinone is prepared by chlorinating 1-amino-4-hydroxy-2,3-dihydroanthraquinone with chlorine in concentrated sulfuric acid.

REFERENCES:
patent: 4997960 (1991-03-01), Epple

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