Rhodium(II)‐Catalyzed Dehydrogenative Silylation of Biaryl‐Type Monophosphines with Hydrosilanes
作者:Dingyi Wang、Yunfei Zhao、Chengkai Yuan、Jian Wen、Yue Zhao、Zhuangzhi Shi
DOI:10.1002/anie.201906975
日期:2019.9.2
situ modification of biaryl-type monophosphines with hydrosilanes through a PIII -chelation-assisted dehydrogenative silylation reaction. A series of ligands containing silyl groups with different steric and electronic properties were obtained with excellent regioselectivities. This method offers many advantages, including the use of commercially available phosphines, no requirement for an external ligand
引入了铑催化体系,用于通过PIII螯合辅助脱氢甲硅烷基化反应用氢硅烷原位修饰联芳基型单膦。获得具有优异的区域选择性的一系列含有具有不同空间和电子性质的甲硅烷基的配体。该方法具有许多优点,包括使用可商购的膦,不需要外部配体或氧化剂,较宽的底物范围,高效率以及可使用单一的区域异构体。基于母体支架的出色性能,甲硅烷基取代的膦可作为Pd催化的不对称Suzuki偶联反应中的出色配体。