Process for preparing diarylketones

Details Process for preparing diarylketones Process for preparing diarylketones

1977-02-16

1978-04-25

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260644, C07C 4502, C07C 7602

Patent

active

040862771

ABSTRACT:
A process for converting a 1,1-diarylalkane, such as a 1,1-bis(alkylphenyl)alkane, to the corresponding diarylketone which involves oxidizing the 1,1-diarylalkane using critical amounts of 1,1-diarylalkane, nitric acid and water. The reaction product obtained as a result of such oxidation of a 1,1-bis(alkylphenyl)alkane can be further subjected to reaction with additional nitric acid at elevated temperatures in a second stage to convert each of the nuclear alkyl groups on the alkyl-aromatic charge to carboxyl groups and the dilute nitric acid remaining can be employed in the first stage as oxidant.

REFERENCES:
patent: 3479400 (1969-11-01), Lese et al.
patent: 3978143 (1976-08-01), Onopchenko et al.
patent: 4022838 (1977-05-01), Onopchenko et al.

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