对映选择合成
二恶烷
化学
酮
催化作用
有机化学
立体化学
作者
Xin‐Yan Wu,Xuegong She,Yian Shi
摘要
This paper describes a highly enantioselective epoxidation of alpha,beta-unsaturated esters using the fructose-derived ketone 2 as catalyst and Oxone as oxidant. High ee's have been obtained for a number of trans and trisubstituted substrates (82-98% ee). The results described show that it is feasible for dioxiranes to effectively epoxidize electron-deficient olefins with high ee's.
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