Title:
PRODUCTION OF CARBAMATE
Document Type and Number:
Japanese Patent JP3480296
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a useful carbamate having a wide application field as a synthetic raw material by reacting a diaryl carbonate with a monoamine in the presence of a specified carboxylic acid.
SOLUTION: The objective carbamate such as phenyl N-phenylcarbamate can be produced by reacting a diaryl carbonate such as diphenyl carbonate having aryl groups with a monoamine of the formula R2-NH2 (R2 is an aralkyl, an aryl or a heterocyclic group) or R3-NH-R4 (R3 and R4 are each an alkyl, an aralkyl, etc.), such as benzylamine, aniline, diisopropylamine or N- methylaniline in the presence of a carboxylic acid of the formula R1-COOH (R1 is a sec- or t-alkyl, an aryl or a heterocyclic group), e.g. isobutyric acid, pivalic acid or benzoic acid. The objective carbamate is easily producible by this process under mild condition in a high yield.
Inventors:
Katsumasa Harada
Ryoji Sugise
Koichi Kashiwagi
Tsunao Matsuura
Ryoji Sugise
Koichi Kashiwagi
Tsunao Matsuura
Application Number:
JP3162898A
Publication Date:
December 15, 2003
Filing Date:
February 13, 1998
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
C07D333/40; B01J31/04; C07B61/00; C07C269/04; C07C271/40; C07D213/75; C07D521/00; (IPC1-7): C07C269/04; C07C271/40; C07D213/75; C07D333/40; C07D521/00
Domestic Patent References:
| JP6345709A |
Previous Patent: POWER SOURCE EQUIPMENT USING MAGNET SYSTEM AC GENERATOR
Next Patent: SEMICONDUCTOR ELEMENT
Next Patent: SEMICONDUCTOR ELEMENT