| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a carbamate of a high purity by reacting a diaryl carbonate with an amine (especially an aromatic monoamine or a sterically bulky monoamine) to afford the carbamate, and easily separating the carbamate. SOLUTION: The process for producing the carbamate comprises reacting the diaryl carbonate with a monoamine having at least one hydrogen atom on the N-position in the presence of a carboxylic acid in the presence or absence of a solvent to afford the carbamate, adding the reaction solvent thereto when the solvent is not used in the reaction, precipitating the carbamate by holding the reaction liquid at -30 to 40°C, and separating the carbamate. COPYRIGHT: (C)2007,JPO&INPIT
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