Synthesis, Characterization, and Catalytic Behavior of Methoxy- and Dimethoxy-substituted Pyridinium-Type Ionic Liquids

Abstract

Synthesis of methoxy-substituted pyridinium-type ionic liquids from a nontoxic and easy method is described. Catalytic behaviors of synthesized ionic liquids were investigated with various concentrations for the Mannich reaction. We have observed that methoxy- and dimethoxy-substituted pyridinium bromides showed better catalytic behavior than other ionic liquids.

GRAPHICAL ABSTRACT

Keywords:

• Catalysis
• dimethoxy
• Mannich reaction
• methoxy
• pyridinium

ACKNOWLEDGMENT

The authors thank R. Sundaram, assistant professor, PG & Research Department of Chemistry, Presidency College, Chennai, for cooperation and moral support.