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Halogen-free process for the conversion of carbon dioxide to urethanes by homogeneous catalysis
1National Institute of Advanced Indutrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
Chemical Communications (Cambridge, England)
|September 21, 2002
Abstract:
Carbon dioxide is converted to urethanes (carbamic acid derivatives) through reaction with amine and alcohol catalyzed by tin complexes; th addition of acetals as a dehydrating agent under high CO2 pressure is the key to achieve high yields.