Palladium-Catalyzed Through-Space C(sp<sup>3</sup>)H and C(sp<sup>2</sup>)H Bond Activation by 1,4-Palladium Migration: Efficient Synthesis of [3,4]-Fused Oxindoles
作者:Tiffany Piou、Ala Bunescu、Qian Wang、Luc Neuville、Jieping Zhu
DOI:10.1002/anie.201306532
日期:2013.11.18
Palladium two step: Linear anilides were converted into the title compounds in good to excellent yields through a palladium‐catalyzed domino carbopalladation/1,4‐palladium shift sequence. The C(sp3)‐H activation involves a seven‐membered palladacycle, and is chemoselective in the presence of competitive C(sp2)H bonds. DMA=N,N‐dimethylacetamide, OPiv=pivalate.
钯两步法:通过钯催化的多米诺骨牌碳钯/ 1,4-钯移位序列,线性苯甲酸酯以良好至极好的收率转化为标题化合物。C(sp 3)-H激活涉及一个七元的palladacycle,并且在存在竞争性C(sp 2)H键的情况下具有化学选择性。DMA = N,N-二甲基乙酰胺,OPiv =新戊酸酯。