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:
Oct. 15, 1985
Filed:
Jul. 06, 1984
Applicant:
Inventors:
Richard A Love, Columbia, MD (US);
Lee R Zehner, Brookeville, MD (US);
Assignee:
W. R. Grace & Co., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562575 ; 562517 ; 562406 ; 562443 ; 562519 ;
Abstract
A process is disclosed for the synthesis of alpha-amino acid by first contacting the condensation product of an aldehyde or ketone and an amine or amide with a protic or Lewis acid solvent and carbon monoxide to form an intermediate reaction product, and then hydrolyzing the intermediate to yield a product comprising the alpha-amino acid. The reaction rate and product yield can be increased by the addition of a Group 1B metal oxide catalyst in the first step.