Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR PRODUCING CARBAMIC ACID ESTER
Document Type and Number:
WIPO Patent Application WO/2018/043658
Kind Code:
A1
Abstract:
Provided is an economically efficient method by which a carbamic acid ester is able to be produced with high yield and high selectivity. In a method for producing a carbamic acid ester according to the present invention, an amine, carbon dioxide and an alkoxysilane compound are reacted with each other in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. For example, a carbamic acid ester is produced by causing aniline, carbon dioxide and tetramethoxysilane to react each other at a temperature of from 150°C to 180°C in the presence of zinc acetate and 2, 2'-bipyridine.

Inventors:
CHOI Jun-Chul (Tsukuba Central 5 1-1, Higashi 1-chome, Tsukuba-sh, Ibaraki 65, 〒3058565, JP)
FUKAYA Norihisa (Tsukuba Central 5 1-1, Higashi 1-chome, Tsukuba-sh, Ibaraki 65, 〒3058565, JP)
ZHANG Qiao (Tsukuba Central 5 1-1, Higashi 1-chome, Tsukuba-sh, Ibaraki 65, 〒3058565, JP)
YASUDA Hiroyuki (3-26 Aomi 2-chom, Koto-ku Tokyo 64, 〒1350064, JP)
Application Number:
JP2017/031414
Publication Date:
March 08, 2018
Filing Date:
August 31, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (3-1 Kasumigaseki 1-chome, Chiyoda-ku Tokyo, 21, 〒1008921, JP)
International Classes:
C07C269/04; C07C271/28; C07B61/00
Domestic Patent References:
WO2015133247A12015-09-11
Foreign References:
JP2004512316A2004-04-22
JP2015093870A2015-05-18
JP2012250930A2012-12-20
JP2006022043A2006-01-26
JP2002212159A2002-07-31
Other References:
"A Simple Zinc Catalyst for Carbamate Synthesis Directly from CO2", CHEMSUSCHEM, vol. 10, 3 March 2017 (2017-03-03), pages 1501 - 1508, XP055592870
Download PDF: