中文摘要：

综述Salen—Mn配合物，手性酮，生物酶催化剂催化的不对称环氧化反应研究进展情况，详细介绍了酮催化剂的发展趋势。

英文摘要：

The development of asymmetric epoxidation of olefins catalyzed by Salen - Mn complexes, chiral ketons and biologic enzymes were reviewed. The asymmetric epoxidation of olefins catalyzed by chiral ketons was explained in detail.