Metal-free, regio- and stereoselective S-methylation/phenylation of allyl halides using sulfoxides as sulfenylating agent
作者:Rakhee Choudhary、Rekha Bai、Pratibha Singh、Mahesh C. Sharma、Satpal Singh Badsara
DOI:10.1016/j.tet.2017.05.088
日期:2017.7
A DCP promoted metal-free, regio and stereoselective S-methylation/phenylation of allyl halides using sulfoxides as sulfenylating agent is described. A variety of multifunctional allyl halides underwent S-methylation and S-phenylation by using dimethyl sulfoxide (DMSO) and diphenyl sulfoxide (DPSO) under the reaction conditions employed to provide the resulting thioethers in good to excellent yields
A simple and convenient synthetic route for the synthesis of tricyclic chromeno[4,3-b]pyrrolidine frameworks using Baylis-Hillman bromides involving in situ formation of an imine, decarboxylation and a [3+2] cycloaddition sequence is described. (C) 2007 Elsevier Ltd. All rights reserved.