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:
Apr. 11, 2000
Filed:
Sep. 29, 1998
Applicant:
Inventors:
James H Babler, Chicago, IL (US);
Harvey W Posvic, Carey Township, WI (US);
Assignee:
Loyola University of Chicago, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568395 ; 568383 ; 568388 ; 560178 ; 560203 ; 560205 ;
Abstract
A method for preparation of a dicarbonyl compound of the following formula ##STR1## by reacting a conjugated alkadiene compound of the formula ##STR2## with a 1,3-dicarbonyl compound of the formula ##STR3## in the presence of an acid catalyst. The products of the method are useful in the preparation of compounds such as vitamins A and E, various carotenoids, Retin A, dehydrolinalool, pseudoionone, citral, and linalool.