Catalytic diastereo‐ and enantioselective hydroalkenylation of 3,3‐disubstituted cyclopropenes with readily accessible alkenylboronic acids, promoted by a chiral phosphine/Co complex, is presented. Such a process constitutes the unprecedented and direct introduction of a wide range of alkenyl groups onto the cyclopropane motif to afford multisubstituted cyclopropanes in up to 95 % yield with greater
介绍了手性膦/
钴配合物促进的3,3-二取代环
丙烯与易于获得的烯基
硼酸的催化非对映和对映选择性的加氢烯基化反应。这种方法构成了前所未有的直接方法,将各种各样的烯基直接引入到
环丙烷基序上,以高达95%的dr和99:1 er的产率提供高达95%的多取代的
环丙烷,从而使对映体富集的
环丙烷的产品功能化,否则很难访问。