Palladium-Catalyzed Chemoselective Allylic Substitution, Suzuki-Miyaura Cross-Coupling, and Allene Formation of Bifunctional 2-B(pin)-Substituted Allylic Acetate Derivatives
作者:Byeong-Seon Kim、Mahmud M. Hussain、Nusrah Hussain、Patrick J. Walsh
DOI:10.1002/chem.201402353
日期:2014.9.8
of organic synthesis is the control of chemoselectivity to enable the selective formation of diverse structural motifs from a readily available substrate class. Presented herein is a detailed study of chemoselectivity with palladium‐based phosphane catalysts and readily available 2‐B(pin)‐substituted allylic acetates, benzoates, and carbonates. Depending on the choice of reagents, catalysts, and reaction
有机合成前沿的一项艰巨挑战是控制化学选择性,以从现成的底物类别中选择性形成不同的结构基序。本文详细介绍了钯基磷烷催化剂和容易获得的 2-B(pin)-取代的烯丙基乙酸酯、苯甲酸酯和碳酸酯的化学选择性。根据试剂、催化剂和反应条件的选择,2-B(pin)-取代的烯丙基乙酸酯和衍生物可以被引导到三个反应歧管之一:烯丙基取代、Suzuki-Miyaura 交叉偶联或消除形成丙二烯,均具有出色的化学选择性。