The toxic and volatile nature of many organic solvents, particularly chlorinated hydrocarbons, that are widely used in organic synthesis have posed a serious threat to the environment. Thus, design of solvent-free reactions 1 and use of alternative green solvents like water, 2 supercritical fluids, 3 and ionic liquids 4 have received a lot of attention in recent times in the area of green synthesis. Although ionic liquids have been successfully employed ...
