Mechanistic Study of a Switch in the Regioselectivity of Hydroheteroarylation of Styrene Catalyzed by Bimetallic Ni-Al through CH Activation
作者:Wen-Ching Chen、Ying-Chieh Lai、Wei-Chun Shih、Ming-Shiuan Yu、Glenn P. A. Yap、Tiow-Gan Ong
DOI:10.1002/chem.201400303
日期:2014.6.23
previously reported a highly efficient protocol for bimetallic Ni–Al‐catalyzed hydroheteroarylation of styrene with benzimidazole based on CH bond activation. We have now delineated the mechanism of this process, providing a rationale for an observed switch in regioselectivity in the presence of the Lewis acid, AlMe3. The present mechanistic study gives insights for the rational development of catalysts
我们以前报道为苯乙烯与苯并咪唑基于C的双金属镍-铝催化hydroheteroarylation一个高效的协议 H键活化。现在,我们描述了该过程的机制,为在路易斯酸AlMe 3存在下观察到的区域选择性转换提供了理论依据。目前的机理研究为合理开发具有所需线性/支化选择性的催化剂提供了见识。