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. 20, 1979
Filed:
Jan. 12, 1978
Applicant:
Inventors:
Riaz F Abdulla, Greenfield, IN (US);
Kenneth H Fuhr, Greenfield, IN (US);
Assignee:
Eli Lilly and Company, Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2603478 ; 2605 / ; 260592 ; 260599 ; 2606 / ; 549 77 ; 549 78 ; 549 70 ; 549 73 ;
Abstract
.alpha.,.beta.-Unsaturated ketones and aldehydes, together with a method of preparation thereof which comprises reacting aldehydes and cyclic and acyclic ketones possessing a methyl or methylene group .alpha.- to the carbonyl function with N,N-dialkylformamide dialkyl acetal to yield the corresponding enaminoketones and enaminoaldehydes, which enaminoketones and enaminoaldehydes are allowed to react with alkyllithium reagents to yield the corresponding nitrogen-free 2-alkylidene ketones and 2-alkylidene aldehydes.