Gold(I)−Phosphine Catalyst for the Highly Chemoselective Dehydrogenative Silylation of Alcohols
作者:Hajime Ito、Katsuhiro Takagi、Takahiro Miyahara、Masaya Sawamura
DOI:10.1021/ol050979z
日期:2005.7.1
[reaction: see text] A gold(I) complex of Xantphos AuCl(xantphos) catalyzes the dehydrogenative silylation of alcohols with high chemoselectivity and solvent tolerance. It is selective for the silylation of hydroxyl groups in the presence of alkenes, alkynes, alkyl halides (RCl, RBr), ketones, aldehydes, conjugated enones, esters, and carbamates.
[反应:见正文] Xantphos AuCl(xantphos)的金(I)络合物以高化学选择性和耐溶剂性催化醇的脱氢甲硅烷基化。在烯烃,炔烃,卤代烷(RCl,RBr),酮,醛,共轭烯酮,酯和氨基甲酸酯的存在下,对羟基的甲硅烷基化具有选择性。