Comptes Rendus Chimie

Chemoselective synthesis of xanthenes and tetraketones in a choline chloride-based deep eutectic solvent

N Azizi, S Dezfooli, MM Hashemi

Index: Azizi, Najmedin; Dezfooli, Sahar; Hashemi, Mohammad Mahmoudi Comptes Rendus Chimie, 2013 , vol. 16, # 11 p. 997 - 1001

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Citation Number: 15

Abstract

Abstract A chemoselective synthesis of tetraketone and xanthene derivatives, by means of tandem Knoevenagel condensation and Michael addition in choline chloride-based deep eutectic solvents (DESs), is presented. The reaction of readily available aldehydes and active methylene compounds in malonic acid-and ZnCl 2-based DES gives various xanthenes derivatives with good to excellent yields under mild reaction conditions. On the ...