Journal of Fluorine Chemistry p. 143 - 148 (1993)
Update date:2022-08-31
Topics:
Qiu, Weiming
Burton, Donald J.
3,3-Difluoroallyltriphenylphosphonium bromide (1) and 3,3-difluoroallylphosphonates, 2, have been prepared by the reaction of CH2=CHCF2Br with phosphites or triphenylphosphine in good yield.Wittig reaction of 1 with aldehydes gave the corresponding dienes (ArCH=CHCH=CF2) 4; however, Wadsworth-Emmons reaction of 2 with aldehydes failed to produce the dienes.
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