Synthesis of difluoroenoxysilanes from acylsilanes and trifluoromethyltrimethylsilane (TFMTMS). Dramatic effect of the catalytic fluoride source

T Brigaud, P Doussot, C Portella

Index: Brigaud, Thierry; Doussot, Pascale; Portella, Charles Journal of the Chemical Society, Chemical Communications, 1994 , # 18 p. 2117 - 2118

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Citation Number: 46

Abstract

Difluorenoxysilanes are produced in high yield by catalytic fluoride activation of a mixture of TFMTMS and an acylsilane: Tetrabutylammonium difluorotriphenylstannate is an excellent catalyst whereas tetrabutylammonium fluoride leads directly to the aldol product corresponding to the difluoromethyl ketone. Some one-pot applications illustrate the usefulness of this methodology.