A facile three‐components, one‐pot synthesis of pyrimido[4,5‐<i>d</i>]pyrimidine‐2,5‐dione derivatives under microwave‐assisted conditions

Abstract

Abstract magnified image Pyrimido[4,5‐ d ]pyrimidine‐2,5‐dione derivatives have been synthesized in high yields in a novel, onepot, and efficient process by condensation of 6‐amino‐3‐methyl‐2‐(methylthio)pyrimidin‐4(3 H )‐one, aldehydes and urea under microwave‐assisted conditions.