Synthesis of α-aminophosphonates using carbon nanotube supported imidazolium salt-based ionic liquid as a novel and environmentally benign catalyst

Abstract

A supported acidic catalyst was easily prepared via anchoring imidazolium salt-based ionic liquid onto multiwalled carbon nanotube by covalent bonds. This novel immobilized acidic ionic liquid effectively catalyzed the one-pot synthesis of α-aminophosphonates from the reaction of amines and aldehydes with diethyl phosphite. The catalyst can be easily recovered and reused without appreciable change in its efficiency.

GRAPHICAL ABSTRACT

KEYWORDS:

• One-pot multi-component reactions
• heterogeneous catalysis
• carbon nanotubes
• α-aminophosphonates
• aldehydes
• ionic liquids

Acknowledgements

We gratefully acknowledge the partial support of this study by the Shahrekord University and the Shiraz University Research Council, Iran.