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:
Oct. 04, 2016
Filed:
Feb. 20, 2012
Applicants:
Tao Zhang, Shanghai, CN;
Claude Mercier, Shanghai, CN;
Olivier Buisine, Saint Fons, FR;
Inventors:
Assignee:
RHODIA OPERATIONS, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 235/10 (2006.01); C07D 277/64 (2006.01); C07D 263/56 (2006.01);
U.S. Cl.
CPC ...
C07D 277/64 (2013.01); C07D 235/10 (2013.01); C07D 263/56 (2013.01);
Abstract
A process for the production of a compound of formula (III) which comprises a step of reacting a compound of formula (I) with an excess amount of a compound of formula (II) in absence of aromatic solvent, wherein n is 0, 1, 2, 3 or 4; X is NH, O or S; each Rgroup may be the same or different, and is independently selected from the group consisting of hydrogen, hydroxyl, alkoxy, alkyl, carbonyl, carboxyl, carboxylic acid ester, amido, cyano, halogenated aliphatic, nitro, and amino; and Rgroup is selected from the group consisting of hydroxyl, Cl, F, Br, amino, and alkoxy.