A new synthesis of 1,3-thiazines and their transformation into 1-substituted-6-alkyluracils by extrusion of carbonyl sulfide
作者:Valera N. Yuskovets、Boris A. Ivin
DOI:10.1016/s0040-4039(03)01262-0
日期:2003.7
A simple synthesis of 5-acyl-4-hydroxy-3,6-dihydro-2H-1,3-thiazine-2,6-diones from malonic acid, potassium thiocyanate and acid anhydrides is described. A new, general, regioselective method for the synthesis of 1-substituted-6-alkyluracils by the reaction of these thiazines with primary alkyl and arylamines is reported.
描述了由丙二酸,硫氰酸钾和酸酐简单合成5-酰基-4-羟基-3,6-二氢-2 H -1,3-噻嗪-2,6-二酮。据报道,通过这些噻嗪与伯烷基和芳基胺的反应合成1-取代的6-烷基尿嘧啶的一种新的,通用的区域选择性方法。