A nanostarch functionalized ionic liquid containing imidazolium cation and cobalt chelate anion for the synthesis of carbamates from amines and dimethyl carbonate

摘要

A new nanostarch functionalized ionic liquid containing imidazolium cation and cobalt chelate anion was synthesized and tested for the one pot synthesis of carbamates by the reaction of amines and dimethyl carbonate (DMC), affording excellent yield of the products under solvent free mild reaction conditions. The synthesized ionic liquid was easily recovered and reused several times without any loss in catalytic efficiency.