The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2015
Filed:
Nov. 29, 2010
Applicants:
Junko Takada, Funabashi, JP;
Shunsuke Iwamoto, Funabashi, JP;
Satoshi Nakano, Funabashi, JP;
Inventors:
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 331/28 (2006.01);
U.S. Cl.
CPC ...
C07C 331/28 (2013.01);
Abstract
The object of the present invention is to provide a novel method for producing an isothiocyanate compound having a carboxyl group(s) by a reaction of the corresponding amino compound having a carboxyl group(s), thiocarbonyldiimidazole and a base, in one step with high purity. An amino compound having a carboxyl group(s) is reacted with thiocarbonyldiimidazole in a solvent in the presence of a base to obtain an isothiocyanate compound having a carboxyl group(s).