Asymmetric dihydroxylation of olefinic groups is an extremely important synthetic transformation which has been widely utilized to obtain optically pure pharmaceuticals and other fine chemical products. In recent years, catalyst systems for the asymmetric C=C dihydroxylations have attracted significant interest, the major research efforts being focused on designing environmentally benign catalyst systems. This mini-review summarizes recent progress in the field, surveying both novel, less toxic modifications of the classical osmium-based catalysts, and the highly efficient and enantioselective non-osmium catalyst systems.

The bibliography includes 50 references.

烯属基团的不对称二羟基化是一种极其重要的合成转化，已被广泛用于获得光学纯药物和其他精细化工产品。近年来，用于不对称 C=C 二羟基化的催化剂体系引起了极大的兴趣，主要的研究工作集中在设计对环境无害的催化剂体系上。这篇小型综述总结了该领域的最新进展，调查了经典锇基催化剂的新型、毒性较小的改性，以及高效和对映选择性的非锇催化剂体系。

参考书目包括 50 篇参考文献。