An Efficient Three-Component Synthesis of Amino-Substituted Pyrano[3,2-<i>b</i>] Pyranones

Abstract

A green, efficient and mild one-pot synthesis of pyrano[3,2- b]pyran derivatives via a three component reaction in the ionic liquid [bmim]BF 4 is reported. This method has the advantages of environmental friendliness, operational simplicity, high yields and reuse of the ionic liquid.