Silylation of Aryl Halides with Monoorganosilanes Activated by Lithium Alkoxide
作者:Takumi Yoshida、Laurean Ilies、Eiichi Nakamura
DOI:10.1021/acs.orglett.8b00818
日期:2018.5.18
Lithium alkoxide activates a monoorganosilane to generate a transient LiH/alkoxysilane complex, which quickly reacts with aryl and alkenyl halides at 25 °C to deliver a diorganosilane product. Experimental and theoretical studies suggest that the reaction includes nucleophilic attack of LiH on the halogen atom of the organichalide to generate a transient organolithium/alkoxysilane intermediate, which
The selective dehydrogenative coupling of phenylsilane and alcohols, including primary, secondary, and tertiary alcohols, was smoothly catalyzed by bis(hexafluoroacetylacetonato)copper(II) complex to afford the corresponding mono-alkoxysilanes in good-to-high yield after distillation.