Process for preparing the 2',4'-difluoro-4-hydroxy-(1,1'-dipheny

Details Process for preparing the 2',4'-difluoro-4-hydroxy-(1,1'-dipheny Process for preparing the 2',4'-difluoro-4-hydroxy-(1,1'-dipheny

1983-07-22

1984-12-04

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 6300

Patent

active

044865996

ABSTRACT:
Process for carboxylating 2',4'-difluoro-4-hydroxy-1,1'-diphenyl or a derivative thereof with an alkaline alkylcarbonate at atmospheric pressure to afford 2',4'-difluoro-4-hydroxy-(1,1'-diphenyl)-3-carboxylic acid.

REFERENCES:
patent: 4131618 (1978-12-01), Weinstock
patent: 4216340 (1980-08-01), Weinstock
patent: 4237315 (1980-12-01), Dolling

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