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:
Jun. 15, 1976
Filed:
Dec. 19, 1973
Applicant:
Inventors:
Philip E Pfeffer, Warrington, PA (US);
Leonard S Silbert, Philadelphia, PA (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
Aldehydes are prepared by metalating an aliphatic carboxylic acid with lithium diisopropylamide in a mixed solvent system of tetrahydrofuran-hexane-hexamethylphosphoramide to form a dianion of the acid, reacting the dianion in the mixed solvent system with ethyl formate and decarboxylating the resulting alpha-aldehyde acid salt.
Pfeffer, Philip. (1976). Process for the preparation of aldehydes (U.S. Patent No. 3963784). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3963784
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile