Regio- and Stereospecific Cleavage of Silyl- and Disilylepoxides with Lithium Diphenylphosphide
作者:Purificación Cuadrado、Ana M. González-Nogal、M. Angeles Sarmentero
DOI:10.1002/chem.200400239
日期:2004.9.20
react stereospecifically with lithium diphenylphosphide, optionally followed by methylation, to give vinylphosphonium iodides or vinylphosphine oxides resulting from alpha-opening and silyl enol ethers, vinylsilanes or alpha-hydroxysilanes by beta-opening. On the other hand, alpha,beta- or alpha,alpha-disilylepoxides afforded beta-silyl vinylphosphine oxides or alpha-silylated silyl enol ethers by alpha-
未取代的或α-和β-C取代的甲硅烷基环氧化物与二苯基磷化锂立体定向反应,可选地随后进行甲基化,以产生由α-开口和甲硅烷基烯醇醚,乙烯基硅烷或α-羟基硅烷产生的乙烯基碘化膦或乙烯基氧化膦。另一方面,α,β-或α,α-二甲硅烷基环氧化物分别通过α-和β-裂解得到β-甲硅烷基乙烯基膦氧化物或α-甲硅烷基化的甲硅烷基烯醇醚。所有化合物都是有机化学中有趣的合成子。