Highly Regio-, Diastereo-, and Enantioselective Pd-Catalyzed Allylic Alkylation of Acyclic Ketone Enolates with Monosubstituted Allyl Substrates
作者:Wen-Hua Zheng、Bao-Hui Zheng、Yan Zhang、Xue-Long Hou
DOI:10.1021/ja071098l
日期:2007.6.1
Pd-catalyzed asymmetric allylic alkylation reactions of acyclic ketones with monosubstituted allyl substrates using 1,1‘-P,N-ferrocene with H as substituent on the oxazoline ring as ligand gave products having two chiral centers with high yields and with high regio-, diastereo-, and enantioselectivities, with the ratio of branched and linear products being 98:2, anti:syn ratio for branched products
Pd 催化无环酮与单取代烯丙基底物的不对称烯丙基烷基化反应,使用 1,1'-P,N-二茂铁,H 作为恶唑啉环上的取代基作为配体,得到具有两个手性中心的高产率和高区域-,非对映选择性和对映选择性,支链和线性产物的比例为 98:2,支链产物的反:syn 比例为 7-21:1,反产物的 ee 为 92-99%。