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:
Jul. 04, 1989
Filed:
May. 04, 1988
Applicant:
Inventors:
Yasuo Yoshida, Shizuoka, JP;
Yoshikazu Kimura, Shizuoka, JP;
Assignee:
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568433 ; 568437 ;
Abstract
A process for producing a fluorobenzaldehyde of the formula: ##STR1## wherein X is a chlorine atom, a bromine atom or an iodine atom, n is an integer of from 1 to 5, and m is an integer of from 1 to 5, provided n.gtoreq.m, which comprises reacting a halogenated benzaldehyde of the formula: ##STR2## wherein X and n are as defined above, with a metal fluoride in the presence of a catalyst, wherein at least one member selected from the group consisting of quaternary phosphonium salts and quaternary ammonium salts is used as the catalyst.