A Simple Method for Synthesis of 4-Dimethylamino-2,6-dimethyl-5-phenylpyrimidines
摘要:
The reaction of N-(1-methyl-2-phenylvinyl)acetimidoyl chloride and its derivatives substituted at the benzene ring with N,N-dimethylcyanamide was studied. At the first stage, linear products like 1-chloro-1-dimethylamino-3,5-dimethyl-6-phenyl-2,4-diaza-1,3,5-hexatrienes were obtained. They underwent cyclization to 4-dimethylamino-2,6-dimethyl-5-phenylpyrimidines in alkaline medium at elevated temperature.