Crotonic, cynnamic, and propiolic acids motifs in the synthesis of thiopyrano[2,3-d][1,3]thiazoles via hetero-Diels–Alder reaction and related tandem processes
作者:Nataliya Zelisko、Dmytro Atamanyuk、Olexandr Vasylenko、Andriy Bryhas、Vasyl Matiychuk、Andrzej Gzella、Roman Lesyk
DOI:10.1016/j.tet.2013.11.083
日期:2014.1
Various novel thiopyrano[2,3-d][1,3]thiazol-2-one-6-carboxylic acids derivatives were synthesized in 54-86% yields via hetero-Diels Alder reactions and related acylation-based tandem processes of 5-arylidene-4-thioxo-2-thiazolidinones with crotonic, propiolic, and cynnamic acids derivatives. Stereo- and regioselectivity of cycloaddition were investigated. (C) 2013 Elsevier Ltd. All rights reserved.