A highly regio-, diastereo-, and enantioselective allylic alkylation reaction mediated by a chiral molybdenum catalyst has been developed as a novel entry into synthetically versatile 3-alkyl-3-aryloxindoles. Extremely bulky nucleophiles were employed to form a quaternary center and an adjacent tertiary center asymmetrically concurrently. The regio- and diastereoselectivity of the reaction is dependent
由手性
钼催化剂介导的高度区域选择性、非对映选择性和对映选择性烯丙基烷基化反应已被开发为合成通用 3-烷基-3-芳基羟
吲哚的新入口。极其庞大的亲核试剂被用来同时不对称地形成一个四级中心和一个相邻的三级中心。反应的区域选择性和非对映选择性在不寻常的程度上取决于亲核试剂的空间和电子性质。讨论了基于
钼烯醇配合物键合模式的反应机理。