phosphoramidite-catalyzed intermolecular enantioconvergent alkylation of racemic tertiary allylic C−H bonds provides facile access to a range of enantioenriched allylic compounds featuring quaternary carbon stereocenters. The deracemization has been accomplished through a rate-limiting cleavage of racemic tertiary allylic C−H bonds to generate σ-allyl-Pd species, and the obtained E/Z-selectivity of σ-allyl-Pd species
Pd-手性亚
磷酰胺催化的外消旋叔烯丙基 C-H 键的分子间对映会聚烷基化可以方便地获得一系列具有季碳立构中心的对映体富集的烯丙基化合物。去消旋化是通过外消旋叔烯丙基 C−H 键的限速裂解生成 σ-烯丙基-Pd 物质来完成的,并且所获得的σ-烯丙基-Pd 物质的E/Z选择性通过亲核试剂显着调节非对映选择性协调启用的 S N 2′-烯丙基化途径。