Method for the preparation of difluoromethoxyaromatic compounds

Details Method for the preparation of difluoromethoxyaromatic compounds Method for the preparation of difluoromethoxyaromatic compounds

1982-09-20

1983-09-20

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260456R, 260456P, 560 55, 560254, 568588, 568649, 568655, 568656, C07C12175, C07C 43225, C07C 69712, C07C 7935

Patent

active

044055293

ABSTRACT:
A method for the preparation of certain difluoromethoxyaromatic compounds useful as intermediates in the preparation of pyrethroid pesticides. The method comprises alkylating a p-substituted phenol with excess chlorodifluoromethane at atmospheric or superatmospheric pressures in the presence of a base, water, and an inert water miscible organic solvent or solvent mixtures.

REFERENCES:
patent: 4199595 (1980-04-01), Berkelhammer et al.

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