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. 29, 1989
Filed:
Jun. 20, 1988
Applicant:
Inventors:
Yasuo Hara, Yokohama, JP;
Ryuji Oashi, Yokkaichi, JP;
Yoshitaka Kawahara, Ibaraki, JP;
Mikio Takeuchi, Yokkaichi, JP;
Assignee:
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585363 ;
Abstract
A process for producing a 5-alkylidenenorbornene, which comprises contacting a 5-alkenylnorbornene with an organolithium compound and at least one compound selected from the group consisting of ammonia, a hydrazine compound and an aliphatic amine compound wherein at least one nitrogen atom in the molecule bonds to at least one hydrogen atom to isomerize the 5-alkenylnorbornene. This process enables the easy and efficient production of a 5-alkylidenenorbornene from an easily available raw material.