A process for synthesizing 2-methyl-4-amino-5-cyanopyrimidine is provided. It is characterized by reacting malononitrile with an ionic salt compound (III) in a certain solvent under the effect of an alkali, and condensing the product thereof without separation directly with ethanamidine hydrochloride to form a ring in the presence of an alkali, so as to prepare 2-methyl-4-amino-5-cyanopyrimidine (I).
提供了一种合成2-甲基-4-
氨基-5-
氰基嘧啶的过程。其特征在于,在碱的作用下,将
丙二腈与离子盐化合物(III)在特定溶剂中反应,并在碱的存在下直接与
盐酸乙酰胺基
甲烷缩合,形成环而不分离产物,从而制备2-甲基-4-
氨基-5-
氰基嘧啶(I)。