Pd-Catalyzed Regioselective and Stereospecific Suzuki–Miyaura Coupling of Allylic Carbonates with Arylboronic Acids
作者:Chenguang Li、Juxiang Xing、Jingming Zhao、Patrick Huynh、Wanbin Zhang、Pingkai Jiang、Yong Jian Zhang
DOI:10.1021/ol203154j
日期:2012.1.6
The Pd-catalyzed Suzuki–Miyaura coupling reaction of unsymmetric 1,3-disubstituted secondary allylic carbonates with arylboronic acids has been developed in a wet solvent under a base-free system to afford allyl–aryl coupling products in a high level of isolated yields with complete regio- and E/Z-selectivities with good to excellent chemoselectivities. The coupling reaction of optically active allyl
在无碱体系下,在湿溶剂中开发了钯催化的非对称1,3-二取代仲烯丙基碳酸酯与芳基硼酸的Pd催化Suzuki-Miyaura偶联反应,可提供高分离收率的烯丙基-芳基偶联产物完全的区域选择性和E / Z选择性以及良好的化学选择性。旋光性碳酸烯丙酯的偶联反应使烯丙基芳基偶联产物具有优异的对映选择性,且立体化学反演。该偶联方法已成功应用于(S)-萘普生的合成。