Synthesis and structural study of N-methyl-2-methylthiopyrimidine derivatives from trihalomethylated enones
作者:Nilo Zanatta、Claudia C. Madruga、Patricia C. Marisco、Luciana S. da Rosa、Fabio M. da Silva、Helio G. Bonacorso、Marcos A. P. Martins
DOI:10.1002/jhet.425
日期:——
The synthesis and chemoselective study of a novel series N‐methyl‐2‐methylthio‐tetrahydropyrimidines and or N‐methyl‐2‐methylthiodihydropyrimidines, from the cyclocondensation reaction of β‐alkoxyvinyl trihalomethyl ketones (enones) with 1,2‐dimethylisothiourea sulfate is described. It was found that the chemoselectivity depends on both the reaction conditions and the steric and electronic effects