Novel Ionic Liquid-Functionalized Chitosan [DSIM][AlCl₃]_<i>x</i>^–@CS: Synthesis, Characterization, and Catalytic Application for Preparation of Substituted Pyrazine Derivatives

Abstract

C MAS nuclear magnetic resonance, scanning electron microscopy/energy-dispersive X-ray, elemental mapping, transmission electron microscopy, powder X-ray diffraction, and thermal gravimetric analyses. The advantageous features of the present energy-sustainable methodology include high yield of product (>99%), shorter reaction time periods, and recyclability of the catalyst.