An efficient synthesis of pyrano [4,5-c] pyrrole derivatives through microwave-accelerated intramolecular Knoevenagal hetero Diels-Alder reaction

Synthesis of novel pyranopyrrole derivatives has been achieved by a one-pot IMHDA reaction of N-substituted aldehydes with various diones in the presence of ethylene diaminediacetate (EDDA) in excellent yields under mild conditions.