The Pt-catalyzed diboration of cyclic alkenes is extended to unsaturated heterocycles and bicyclic compounds and can be accomplished in a diastereoselective fashion. The optimal procedures, substrate scope, and diastereoselectivity were investigated, and examples employing both homogeneous and heterogeneous catalysis were examined. Lastly, application to the construction of the nucleoside analog (±)-aristeromycin
Pt催化的环烯烃的
硼酸酯化反应扩展到不饱和杂环和
双环化合物,并且可以以非对映选择性的方式完成。研究了最佳方法,底物范围和非对映选择性,并研究了采用均相和非均相催化的实例。最后,将其应用于核苷类似物(±)-
阿霉素的构建。