Osmium tetroxide, linked to insoluble crosslinked polymers and copolymers bearing tertiary amino functions, has been used in the presence of secondary oxidants, such as hydrogen peroxide, tert-butyl hydroperoxide and trimethylamine N-oxide, to accomplish the catalytic hydroxylation of olefins. The polymeric reagent offers the advantages of easy and safe handling, and simple separation from the reaction medium. Generally good yields of vicinal diols have been obtained.
四氧化锇与具有三级
氨基功能的不可溶交联聚合物和共聚物相结合,在次级氧化剂(如
过氧化氢、
叔丁基过氧化氢和N-氧化
三甲基胺)的 presence 中被用于催化烯烃的羟基化。聚合物试剂提供了易于安全操作和简单从反应介质中分离的优点。通常获得了较好的邻二醇产率。