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. 01, 1979
Filed:
Feb. 03, 1977
Applicant:
Inventor:
Petrus C Traas, Naarden, NL;
Assignee:
Naarden International N.V., Naarden-Bussum, NL;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260598 ; 568591 ; 2603 / ; 568828 ;
Abstract
A new intermediate of formula I ##STR1## in which X is chlorine, bromine or hydrogen and Y is a free or protected --CHO group, which is used in the manufacture of boll weevil sex pheromone components of formula II ##STR2## in which Z is --CHO or --CH.sub.2 OH, by catalytic hydrogenation, optionally with protection of the formyl group of II by acetalisation. Compound II is prepared by formylation of isophorone directly or after reduction and dehydration.