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AssigneesNational Institute of Advanced Industrial Science and Technology, Tosoh Corporation
InventorsKatsuhiko Takeuchi, Kazuhiro Matsumoto, Norihisa Fukaya, Hiroki Koizumi, Jun-Chul Choi, Masahito Uchida, Seiji Matsumoto, Satoshi Hamura
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A method for producing a carbamic acid salt, including contacting a carbon dioxide-containing mixed gas having a partial pressure of carbon dioxide of 0.001 atm or more and less than 1 atm with an amino group-containing organic compound in the presence of a base in at least one organic solvent selected from the group consisting of an organic solvent having 2 or more and 8 or less carbon atoms, and a method for producing a carbamic acid ester or a urea derivative using the carbamic acid salt.
A method for producing a carbamic acid ester, comprising a reaction step of producing a carbamic acid ester having a structure represented by the following formula (a-1) or (a-2), from a carbamic acid salt and a metal alkoxide:
Dependencies are inferred from the claim text.