Cesium carbonate as a heterogeneous reusable and efficient catalyst for the
synthesis of 2-amino-4H-Chromene derivatives

Vinod V. Throat; Satish A. Dake; Maya V. Katariya; Rajendra P. Pawar

Abstract

Cesium carbonate as a heterogeneous reusable and efficient catalyst for the synthesis of 2-amino-4H-Chromene derivatives

A simple, efficient and environmentally being method for the synthesis of 2-amino 4H-chromene derivatives was developed using Caesium carbonate as a hetrogeneous base catalyst. Three component reaction of an aldehyde, malononitrile and cyclic dimedone in ethanol at room temperature offered the corresponding 2-amino- 4Hchromene derivatives with excellent yields (80-96%) in a short reaction time.

Author(s): Vinod V. Throat, Satish A. Dake, Maya V. Katariya and Rajendra P. Pawar

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