of electron-deficient alkenes with disilanes in acetonitrile gave silylated alkanes in high yields. The photosilylation occurred in a highly regioselective manner at the position β to the electron-withdrawing groups of the alkenes. With asymmetrically substituted disilanes and polysilanes, silyl groups bearing more bulky substituents were preferentially introduced to the alkenes. The photoreactions were
Alkali metal hydrides: new metallating reagents at silicon
作者:Robert J. P. Corriu、Christian Guerin
DOI:10.1039/c39800000168
日期:——
New procedures for the preparation of organosilyl-sodium or potassium, which undergo coupling reactions with alkyl, allyl, and benzyl halides and α-enones, are reported.
报道了制备有机甲硅烷基钠或钾的新方法,其与烷基,烯丙基和苄基卤化物和α-烯酮进行偶联反应。
Photosilylation of electron-deficient alkenes by use of disilanes via photoinduced electron-transfer