An efficient regioselective synthesis of highly functionalized 3-oxo-2,3-dihydro-5H-thiazolo[3,2-a]pyrimidines via an isocyanide-based three-component reaction
作者:Abbas Ali Esmaeili、Mahdieh Zangouei、Ali Reza Fakhari、Azizollah Habibi
DOI:10.1016/j.tetlet.2012.01.005
日期:2012.3
We present a novel, convenient, and efficient method for synthesizing polysubstituted 3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidines via a three-component reaction. The zwitterions generated from the reaction of isocyanides and dialkyl acetylenedicarboxylates react with 2-imino-1,3-thiazolidin-4-one to produce the title compounds in good yields.
我们提出了一种新颖,方便,高效的方法,通过三组分反应合成多取代的3-oxo-2,3-dihydro-5 H- [1,3] thiazolo [3,2- a ] pyrimidines。异氰酸酯和乙炔基二羧酸二烷基酯反应生成的两性离子与2-亚氨基-1,3-噻唑烷酮-4-酮反应以高收率生产标题化合物。