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:
Dec. 06, 2016
Filed:
Dec. 19, 2012
Roland Bou Chedid, Mannheim, DE;
Alfred Oftring, Bad Duerkheim, DE;
Wolfgang Staffel, Otterstadt, DE;
Markus Christian Biel, Mannheim, DE;
Johann-peter Melder, Boehl-Iggelheim, DE;
Christian Gruenanger, Mannheim, DE;
Roland Bou Chedid, Mannheim, DE;
Alfred Oftring, Bad Duerkheim, DE;
Wolfgang Staffel, Otterstadt, DE;
Markus Christian Biel, Mannheim, DE;
Johann-Peter Melder, Boehl-Iggelheim, DE;
Christian Gruenanger, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Process for the preparation of racemic α-amino acids or of glycine, wherein the corresponding α-hydroxycarboxylic acid, selected from hydroxyacetic acid, lactic acid, malic acid, α-hydroxyglutamic acid, isocitric acid, tartronic acid and tartaric acid, or at least one salt of the corresponding α-hydroxycarboxylic 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 (c), where the nitrogen compound (c) is selected from primary and secondary amines and ammonia.