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. 19, 2025
Filed:
Jul. 26, 2022
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Yoshitaka Nomura, Tokyo, JP;
Eiichiro Anraku, Tokyo, JP;
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D 215/12 (2006.01); C07D 213/26 (2006.01); C07D 213/84 (2006.01); C07D 215/48 (2006.01); C07D 233/70 (2006.01); C07D 237/30 (2006.01); C07D 241/42 (2006.01); C07D 277/64 (2006.01);
U.S. Cl.
CPC ...
C07D 215/12 (2013.01); C07D 213/26 (2013.01); C07D 213/84 (2013.01); C07D 215/48 (2013.01); C07D 233/70 (2013.01); C07D 237/30 (2013.01); C07D 241/42 (2013.01); C07D 277/64 (2013.01);
Abstract
A method for a high yield production of a difluoromethyl-substituted aromatic heterocyclic compound having a partial structure represented by formula (II), which includes reacting an N-oxido aromatic heterocyclic compound having a partial structure represented by formula (I) with tetrafluoroethylene in a solvent selected from an aromatic hydrocarbon solvent, an ester solvent, and an ether solvent.