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. 04, 2015
Filed:
Dec. 06, 2011
Applicant:
Ryu Nakao, Chuo-ku, JP;
Inventor:
Ryu Nakao, Chuo-ku, JP;
Assignee:
ZERIA PHARMACEUTICAL CO., LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 65/00 (2006.01); C07C 51/363 (2006.01); C07C 51/367 (2006.01);
U.S. Cl.
CPC ...
C07C 51/363 (2013.01); C07C 51/367 (2013.01);
Abstract
Provided is a method for effectively producing a 4,5-dialkoxy-2-hydroxybenzoic acid from an inexpensive raw material. A method for producing a 2-bromo-4,5-dialkoxybenzoic acid represented by the following formula (2): (wherein each of Rand Rrepresents a lower alkyl group), the method including causing a 3,4-dialkoxybenzoic acid represented by the following formula (1): (wherein Rand Rhave the same meanings as defined above) to react with bromine in concentrated hydrochloric acid.
Nakao, Ryu. (2015). Method for producing 2-bromo-4,5-dialkoxy benzoic acid (U.S. Patent No. 9096511). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9096511
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile