Neighbouring group participation by the vinyl group in reactions of sterically-hindered organosilicon compounds
作者:G. Adefikayo Ayoko、Colin Eaborn
DOI:10.1039/c39860000630
日期:——
Anchimeric assistance by the γ-vinyl group makes (Me3Si)2C(SiMe2CHCH2)(SiMe2I) much more reactive than (Me3Si)3CSiMe2I towards CF3CH2OH, CF3CH2H, and silver salts, and treatment of (Me3Si)2C(SiMe2CHCH2)(SiEt2I) with AgO2CCF3 or AgBF4 gives mixtures of (Me3Si)2C(SiMe2CHCH2)(SiEt2Y) and (Me3Si)2C(SiEt2CHCH2)(SiMe2Y)(Y = O2CCF3 or F); these reactions appear to involve 1,3-vinyl-bridged silicocationic