An efficient synthesis of styrenyl enamides from 4-aryl-2-oxazolidinones in the presence of strong base
摘要:
Efficient synthesis of styrenyl enamides can be achieved from the corresponding 4-aryl-2-oxazolidinones, 2-thioxooxazolidines, and 2-thioxothiazolidines in the presence of the strong base lithium diisopropylamine. The reaction proceeded efficiently to achieve the enamides in good to excellent yields (up to 92%). This reaction provides an easy, rapid, and good-yielding method for the synthesis of styrenyl enamides. (C) 2015 Elsevier Ltd. All rights reserved.
Kinetic Resolution of <i>N</i>-Acyl-Thiolactams via Catalytic Enantioselective Deacylation
作者:Valentina D. Bumbu、Xing Yang、Vladimir B. Birman
DOI:10.1021/ol401122g
日期:2013.6.7
Methanolysis of N-acyl-thiazolidin-2-thiones and -oxazolidin-2-thiones in the presence of acyl transfer catalyst benzotetramisole (BTM) proceeds in a highly enantioselective fashion thus enabling kinetic resolution of these substrates.