Synthesis of carbamates from aliphatic amines and dimethyl carbonate catalyzed by acid functional ionic liquids
نویسندگان
چکیده
Selective synthesis of carbamates from amines and dimethyl carbonate were studied in the presence of various ionic liquids as catalysts. The SO3H-functionalized ionic liquid was found to be the most active catalyst among the applied ionic liquids, and nearly 100% conversion and 95% electivity were achieved when using 1,6-hexanediamine as reactant. The acid functional ionic liquid catalyst system is also readily separable and eusable after reaction. 2007 Elsevier B.V. All rights reserved.
منابع مشابه
A nanostarch functionalized ionic liquid containing imidazolium cation and cobalt chelate anion for the synthesis of carbamates from amines and dimethyl carbonate.
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 ...
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