A New Approach to the Synthesis of Poly-Functionalized Pyrano[2,3-d] Pyrimidines Derivatives via Microwave-Assisted Multi-Component Reactions without Catalyst

摘要

A facile microwave-assisted synthesis of pyrano[2,3-d]pyrimidines derivatives is accomplished via reactions of 4-arylmethylene-2-phenyloxazol-5(4H)-ones with pyrimidine-4,6-diol in ethylene glycol. The reaction is simple to perform and occurs under mild conditions with broad scope of applicability.