Catalysis letters

Silica-bonded 2-hydroxyethylammonium acetate as an efficient and recyclable catalyst for the synthesis of 2-amino-4H-chromen-4-yl phosphonates and β- …

S Sobhani, M Honarmand

Index: Sobhani, Sara; Honarmand, Moones Catalysis Letters, 2013 , vol. 143, # 5 p. 476 - 485

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Citation Number: 16

Abstract

Abstract Silica-bonded 2-hydroxyethylammonium acetate was synthesized easily by the reaction of 3-chloropropylsilica with ethanolamine followed by ion exchange with acetate. It was used as a heterogeneous, re-usable, efficient and easy to handle catalyst for the one- pot synthesis of a variety of 2-Amino-4 H-chromen-4-yl phosphonates and β- phosphonomalonates at room temperature under solvent-free conditions. Graphical Abstract