The Journal of organic chemistry

Use of Fluoroform as a Source of Difluorocarbene in the Synthesis of Difluoromethoxy-and Difluorothiomethoxyarenes

CS Thomoson, WR Dolbier Jr

Index: Thomoson, Charles S.; Dolbier, William R. Journal of Organic Chemistry, 2013 , vol. 78, # 17 p. 8904 - 8908

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Citation Number: 40

Abstract

Fluoroform, CHF3, a non-ozone-depleting, nontoxic, and inexpensive gas can be used as a difluorocarbene source in a process for the conversion of phenols and thiophenols to their difluoromethoxy and difluorothiomethoxy derivatives. The reactions are carried out at moderate temperatures and atmospheric pressure, using potassium hydroxide as base in a two-phase (water/dioxane or water/acetonitrile) process to provide moderate to good ...