Non-Cp titanium alkoxide-based homolytic ring-opening of epoxides by an intramolecular hydrogen abstraction in β-titanoxy radical intermediates
作者:Tsuyoshi Kawaji、Noriaki Shohji、Kenji Miyashita、Sentaro Okamoto
DOI:10.1039/c1cc12969d
日期:——
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。