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. 31, 1984
Filed:
Nov. 29, 1982
Applicant:
Inventor:
Tse-Lok Ho, Jacksonville, FL (US);
Assignee:
SCM Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568343 ; 568838 ; 568386 ; 568353 ; 585357 ;
Abstract
A process for making piperitone from crude plinols involving hydrogenating the crude plinols to form dihydroplinols and dehydrating the dihydroplinols to yield an iridene. The iridene is then oxidatively cleaved at the unsaturation to form an acyclic dione. The dione is cyclized in the presence of a base to form piperitone.