The reaction of 3-amino-s-triazole (1) with ketene dithioacetals (2) gave 5-methylthio-s-triazolo [1, 5-a] pyrimidine derivatives in satisfactory yields. The synthesis of 7-amino-s-triazolo-[1, 5-a] pyrimidine derivatives is also described.
3-amino-s-triazole (1) 与酮烯二
硫代
乙醛 (2) 反应得到 5-methylthio-s-triazolo [1, 5-a] pyrimidine 衍
生物,产率令人满意。此外,还介绍了 7-
氨基-s-三唑并[1, 5-a]
嘧啶衍
生物的合成。