situ from Ti(O-i-Pr)(4), Me(3)SiCl and Mg powder in tetrahydrofuran reacted with epoxides to selectively provide less hindered alcohols via a homolytic ring-opening of epoxides, in which the intermediate beta-titanoxy radical intramolecularly abstracted a hydrogen atom from an alkoxy moiety in the titanium complexes.
从
四氢呋喃中的Ti(Oi-Pr)(4),Me(3)SiCl和Mg粉末原位衍生的低价
钛物质与
环氧化物反应,通过
环氧化物的均相开环选择性地提供较少受阻的醇,其中中间体β-
钛氧基从
钛配合物中的烷氧基部分分子内提取氢原子。