Efficient and practical method for synthesizing optically active γ-trityloxymethyl-α-alkylidene-γ-butyrolactones using Ti(II)-mediated intramolecular nucleophilic acyl substitution reaction
作者:Z.P Mincheva、Yuan Gao、Fumie Sato
DOI:10.1016/s0040-4039(98)01769-9
日期:1998.10
An efficient and highly stereoselective method for synthesizing optically active γ-trityloxymethyl-α-alkylidene-γ-butyrolactones having a stereodefined mono or disubstituted exocyclic double bond, starting from commercially available non-racemic glycidyl tritylether has been developed in which a titanium(II)-mediated intramolecular nucleophilic acyl substitution reaction is a key reaction.
从市售的非外消旋缩水甘油基三苯甲基醚开始,开发了一种高效且高度立体选择性的方法,用于合成具有立体定义的单环或双取代的环外双键的旋光性γ-三苯甲氧基甲基-α-亚烷基-γ-丁内酯,其中钛(II)介导的分子内亲核酰基取代反应是关键反应。