Synthesis of Diversely Functionalized Oxindoles Enabled by Migratory Insertion of Isocyanide to a Transient σ-Alkylpalladium(II) Complex
作者:Wangqing Kong、Qian Wang、Jieping Zhu
DOI:10.1002/anie.201603950
日期:2016.8.8
Palladium‐catalyzed intramolecular carbopalladation of N‐aryl acrylamides followed by migratory insertion of an isocyanide‐coordinated C(sp3)−Pd intermediate afforded an alkylimidoyl−PdII complex, which can be intercepted by a nucleophile, including heteroarenes. In addition to amides, the alkylimidoyl−PdII complex was successfully converted into esters, ketones, and bis‐heterocyclic compounds. An
钯催化的N-芳基丙烯酰胺的分子碳环缩合反应,然后迁移插入异氰酸酯配位的C(sp 3)-Pd中间体,可得到烷基亚酰亚胺基-Pd II复合物,可被包括杂芳烃在内的亲核试剂截获。除酰胺外,烷基亚氨基-Pd II复合物还成功转化为酯,酮和双杂环化合物。还记录了前所未有的钯催化的对映选择性多米诺骨牌工艺,涉及异氰化物。