573-69-3Relevant academic research and scientific papers
Ring-chain tautomerism of 0-benzoylbenzoic and substituted o-benzoylphthalic acids and preparation of polymers based on them
Skorokhodov,Rudaya,Klimova,Bol'shakov
, p. 2164 - 2170 (2007/10/03)
The ring-chain tautomerism of 2,5-benzophenonedicarboxylic acid (I) and product (II) of its condensation with p-hydroxybenzoyl chloride was studied by IR and 1H and 13C NMR spectroscopy.
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.
