Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone

Details Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone Process for the synthesis of 2-hydroxy-4-alkyloxy benzophenone

1997-11-20

1998-12-15

Geist, Gary

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

Organic compounds

Oxygen containing

568322, C07C 4761

Patent

active

058499555

ABSTRACT:
A process is described for the synthesis of 2-hydroxy-4-alkyloxy benzophenone by the selective alkylation of 2,4-dihydroxy benzophenone with a dialkyl carbonate, in liquid phase, in the presence of suitable catalysts, at a temperature ranging between 120.degree. and 220.degree. C. and at a total pressure ranging from 2 to 60 ate.

REFERENCES:
patent: 4323710 (1982-04-01), Wexler et al.
patent: 5629453 (1997-05-01), Beau
Patent Abstracts of Japan, vol. 18, No. 462 (C-1243), Aug. 29, 1994, JP 6-145091, May 24, 1994.

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