Synthesis of 1-aminoanthraquinone

Details Synthesis of 1-aminoanthraquinone Synthesis of 1-aminoanthraquinone

1991-02-12

1992-07-21

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Polycyclo ring system containing anthracene configured ring...

585466, 585468, 585469, 552251, 568 34, 568 58, 568 67, 568640, 568744, 568928, C07C27934, C07C 268

Patent

active

051324377

ABSTRACT:
1-Aminoanthraquinone (1-AAQ) is synthesized by the reaction of 2-chlorobenzyl chloride and xylene in the presence of a solid acid catalyst to yield 2-chloro dimethyldiphenylmethane, subsequent oxidation of the methyl groups, ring closure to form a 1-chloroanthraquinone carboxylic acid, replacement of the 1-chloro group with ammonia, and decarboxylation.

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patent: 4804501 (1989-02-01), James et al.
patent: 4874483 (1989-03-01), Blank et al.

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