N-Thioaroylmorpholines in Silica Gel-Water: An Efficient System to Access Functionalized Allylic Thioesters from Baylis-Hillman Bromides
作者:Lal Yadav、Rajesh Patel、Vishnu Srivastava
DOI:10.1055/s-0030-1258476
日期:2011.4
A facile, one-pot synthesis of allylic thioesters starting from Baylis-Hillman (BH) bromides and N-thioaroylmorpholines is described. The synthesis is performed in a silica gel-water system without any additional catalyst or co-catalyst. The reaction pathway involves selective S-alkylation of N-thioaroylmorpholines via nucleophilic displacement (SN2) with BH bromides, followed by hydrolysis to afford