Reaction of Baylis-Hillman Adducts with Fluorinated Silanes
作者:Artem A. Zemtsov、Vitalij V. Levin、Alexander D. Dilman、Marina I. Struchkova、Pavel A. Belyakov、Vladimir A. Tartakovsky、Jinbo Hu
DOI:10.1002/ejoc.201001051
日期:2010.12
Reactions of acylated Baylis–Hillmanadducts bearing nitrile, ester, or ketone groups with C6F5-substituted silicon reagents MenSi(C6F5)4–n (n = 1–3) have been studied. The reactions are initiated by Bu4NOAc (5 mol-%) in MeCN or DMF under mild conditions and afford products of allylic substitution of the acetoxy group by the C6F5 carbanion in good yields. Predominant or exclusive formation of one geometrical