Efficient and Green Protocol for the Synthesis of Thioamides in C6(mim)2Cl2 as a Dicationic Ionic Liquid

A simple, efficient, facile and eco-friendly process for the synthesis of thioamides from nitriles using 1,6-bis(3-methylimidazolium-1-yl)hexane chloride [C-6(mim)(2)Cl-2] as a dicationic ionic liquid (DIL) was developed. The ionic liquid was easily separated from the reaction mixture and was recycled at least four times without any loss of its activity.