36417-57-9Relevant academic research and scientific papers
Synthesis of 1-aminoanthraquinone
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, (2008/06/13)
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.
LIQUID-PHASE CATALYTIC OXIDATION OF 2,5-DIMETHYLDIPHENYLMETHANE AND ITS METHYL-, CHLORO-, AND NITRO-SUBSTITUTED DERIVATIVES
Pozdnyakovich, Yu. V.,Borodovitsyn, V. V.,Borodovitsyna, T. I.,Sysa, V. M.,Shein, S. M.
, p. 349 - 353 (2007/10/02)
The oxidation of 2,5-dimethyldiphenylmethane and its methyl, chloro, and nitro derivatives with oxygen in acetic acid in the presence of cobalt-manganese-bromide catalyst to benzophenone-2,5-dicarboxylic acids takes place with the intermediate formation of either 2,5-dimethylbenzophenones or products from oxidation of the methyl groups.The ratio of the oxidation paths depends on the nature of the substituent, and the contribution from the path involving initial oxidation of the methylene fragment changes with the substituents in the order 4'-CH3>H>4'-Cl>2'-Cl>4'-NO2.
