A Simple One‐pot Synthesis of Indeno[2,1‐f]quinolin‐3‐one Derivatives under Microwave Irradiation

A series of new indeno[2,1-f]quinolin-3(2H)-one derivatives were synthesized by a reaction of aromatic aldehyde with Meldrum's acid (2,2-dimethyl-1,3-dioxane-4,6-dione) and 9H-fluoren-2-amine under microwave irradiation without catalyst in glacial acetic acid. This reaction has notable advantages of short reaction time, high yield and convenient operation.