Synthesis of Furo[3,4-<i>d</i>]pyrimidine Derivatives via Reaction of 4-Methylpyrimidine-5-carboxylic Acids with Thionyl Chloride
作者:Z. Machon、J. Cieplik
DOI:10.1055/s-1986-31502
日期:——
6-Anilino-5-carboxy-4-methyl-2-phenylpyrimidines undergo an unusual reaction with thionyl chloride to give 4-anilino-5-oxo-2-phenyl-7-thioxo-5, 7-dihydrofuro[3,4-d]pyrimidines, presumably via a sulfine as intermediate.