One-Pot Synthesis of 5-Unsubstituted-6-Aroyl[1,2,4]triazolo[1,5-a]pyrimidine Utilizing Biginelli-Like Multicomponent Reaction of Enaminones with 3-Amino-1,2,4- triazole as the Urea Component

A novel and facile Biginelli-like assembly employing enaminones, aldehydes and 3-amino-1,2,4-triazole has been developed, which provides a novel synthesis of new 5-unsubstituted-6-aroyl-[1,2,4]triazolo[1,5-a]pyrimidine derivatives.