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:
May. 21, 2002
Filed:
Aug. 25, 1998
Applicant:
Inventors:
Osamu Kaieda, Tsuchiura, JP;
Koichi Hirota, Kobe, JP;
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C 6/310 ;
U.S. Cl.
CPC ...
C07C / ; C07C 6/310 ;
Abstract
A method for the production of an aromatic fluorine compound is provided which is capable of preventing the occurrence of benzoic acid fluorides during the course of a halogenation exchange reaction or allowing removal of the benzoic acid fluorides formed at all. A method for the production of an organic fluorine compound is disclosed which comprises preventing the occurrence of acid fluorides of an aromatic compound during the production of the organic fluorine compound by the reaction of an organic chlorine or bromine compound with a fluorinating agent in benzonitrile as a solvent or allowing removal of the acid fluorides formed.