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:
Aug. 30, 2016
Filed:
May. 14, 2014
Basf SE, Ludwigshafen, DE;
Christian Gruenanger, Mannheim, DE;
Roland Bou Chedid, Mannheim, DE;
Markus Christian Biel, Mannheim, DE;
Johann-Peter Melder, Boehl-Iggelheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Process for the preparation of alkali metal salts of glycine or of racemic α-amino acids of the general formula (I)R—CH(NH)—COOH  (I) in which Ris selected from hydrogen, CH, CH, CH(CH), (CH)COOH and CHOH, wherein an alkali metal salt of the corresponding α-ketocarboxylic acid or glyoxalic acid is reacted in the presence of at least one heterogeneous catalyst, which comprises at least one transition metal, in the presence of hydrogen with at least one nitrogen compound at temperatures in the range from 50 to 200° C., where the nitrogen compound is selected from primary and secondary amines and ammonia.