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:
Sep. 14, 1999
Filed:
Dec. 28, 1998
Applicant:
Inventor:
James H Babler, Chicago, IL (US);
Assignee:
Loyola University of Chicago, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07C / ;
U.S. Cl.
CPC ...
558198 ; 558 87 ; 568363 ; 568367 ;
Abstract
The present invention describes novel C-15 allenic phosphonate reagent compositions of the formula: ##STR1## The invention also describes novel C-15 allylic phosphonate reagent compositions of the formula: ##STR2## The invention also describes methods of preparing canthaxanthin, the phosphonate reagent compositions, and a tertiary propargylic alcohol of the formula: ##STR3##