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:
Jan. 24, 2017
Filed:
Dec. 05, 2012
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Kumiai Chemical Industry Co., Ltd., Tokyo, JP;
Minoru Ito, Iwata, JP;
Akiko Ikumi, Fuji, JP;
IHARA CHEMICAL INDUSTRY CO., LTD., Tokyo, JP;
KUMIAI CHEMICAL INDUSTRY CO., LTD., Tokyo, JP;
Abstract
An inexpensive and convenient production method of diphenylamine compounds is provided, that can solve problems in the conventional technology such as decrease in reactivity, restriction of substituents, high temperature, high pressure, by-products or the like. Further, diphenylamine compounds useful as intermediates of medicine and agricultural chemicals are provided. Diphenylamine compounds are produced, represented by general formula (3): which is characterized by reacting aniline compounds represented by general formula (2): under the presence of base and ethers solvent, with 2,6-dichloronitrobenzene compound represented by general formula (1): and a diphenylamine compound represented by general formula (3).