Pd-Catalyzed Dehydrogenative Aryl–Aryl Bond Formation via Double C(sp<sup>2</sup>)–H Bond Activation: Efficient Synthesis of [3,4]-Fused Oxindoles
作者:Ala Bunescu、Tiffany Piou、Qian Wang、Jieping Zhu
DOI:10.1021/ol503442n
日期:2015.1.16
A Pd(0)-catalyzed double cyclization of easily available o-bromoanilides leading to strained [3,4]-fused oxindoles was developed. The reaction proceeded through a highly ordered sequence involving key carbopalladation, 1,4-Pd migration, and C(sp2)–H functionalization steps.
开发了Pd(0)催化的容易获得的邻溴代苯甲酰苯胺的双环化反应,导致应变的[3,4]稠合的吲哚。该反应通过一个高度有序的过程进行,该过程涉及关键的碳pal触,1,4-Pd迁移和C(sp 2)–H官能化步骤。