Pd(II)‐Catalyzed C−H Silylation of <i>o</i>‐Alkynylanilines Initiated by an Aminopalladation To Access Disilylated 2‐Phenyl‐1<i>H</i>‐indoles
作者:Yan Chen、Ling Zhu、Xuliang Tan、Xiahong Chen、Guobo Deng、Yun Liang、Yuan Yang
DOI:10.1002/adsc.202301119
日期:2024.1.30
Herein a Pd(II)-catalyzed C−H silylation of o-alkynylanilines with hexamethyldisilane for the synthesis of disilylated 2-phenyl-1H-indoles is reported. In this reaction, o-alkynylanilines undergo an aminopalladation, C−H activation, and dealkylation sequence to form five-membered C,C-palladacycles, which then couple with hexamethyldisilane to construct one C−N bond and two C−Si bonds. This method provides
本文报道了 Pd(II) 催化的邻炔基苯胺与六甲基二硅烷的 CH 甲硅烷基化反应,用于合成二甲硅烷基化的 2-苯基-1 H-吲哚。在此反应中,邻炔基苯胺经历氨基钯化、C-H活化和脱烷基化序列,形成五元C、C-钯环,然后与六甲基二硅烷偶联,构建一个CN键和两个C-Si键。该方法为 C−H 硅烷化提供了一种替代策略。