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:
Nov. 08, 1988
Filed:
May. 04, 1987
Applicant:
Inventors:
Yoshihiro Naruse, Chiba, JP;
Toshihide Suzuki, Chiba, JP;
Assignee:
Kawasaki Steel Corporation, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585268 ; 585266 ; 585267 ; 585269 ;
Abstract
A cis-isomer of perhydroacenaphthene is selectively prepared through hydrogenation of acenaphthene by effecting hydrogenation of 80.degree. to 200.degree. C. in the presence of a Ru and/or Rh based catalyst. A cis-isomer having the highest boiling point is obtained as a major product.