Affiliation:
1. Department of Chemistry Dr. B. R. Ambedkar National Institute of Technology Jalandhar Punjab 144027 India
2. Department of Chemistry Central University of Punjab Bathinda Punjab 151004 India
3. Department of Chemistry National Institute of Technology Manipur Imphal 795004 India
Abstract
AbstractA potential DIPEA‐assisted approach has been unfolded for the synthesis of novel β‐carboline tethered‐4H‐pyran derivatives via one‐pot condensation of 1‐formyl‐9H‐β‐carbolines, β‐keto esters and malononitrile in ethanol at ambient temperature. A library of 28 new β‐carboline tethered 4H‐pyran derivatives has been developed. The significant features of the present strategy include high efficiency, excellent yield, inexpensive catalyst, mild reaction conditions, multicomponent character of reaction and simple purification procedure.