One-pot, three component synthesis of novel 5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-6-carboxylate derivatives by microwave irradiation
作者:Bing Zhao、Yu Xu、Qi-Gang Deng、Zhuo Liu、Li-Yan Wang、Yan Gao
DOI:10.1016/j.tetlet.2014.06.073
日期:2014.8
synthetic method for the highly substituted 5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-6-carboxylate derivatives has been accomplished via a microwave irradiation of MCRs of various aldehydes, 2-aminothiadiazole, and acetoacetate without any catalyst in acetic acid. This approach provides a convenient one pot method for the synthesis of 5H-[1,3,4]thiadiazolo[3,2-a]pyrimidine-6-carboxylate derivatives.
一种高效的一锅法合成高取代5 H- [1,3,4]噻二唑[3,2 - a ]嘧啶-6-羧酸盐衍生物的方法是通过微波辐射各种醛,2-的MCR来完成的。氨基噻二唑和乙酰乙酸酯,在乙酸中无任何催化剂。该方法提供了一种方便的一锅法,用于合成5 H- [1,3,4]噻二唑并[3,2 - a ]嘧啶-6-羧酸酯衍生物。