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, 2011
Filed:
Dec. 19, 2006
Applicants:
Klaus Ditrich, Gönnheim, DE;
Harald Winsel, Birkenheide, DE;
Dominique Moulin, Limburgerhof, DE;
Inventors:
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 41/00 (2006.01); C07C 211/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for preparing optically active methyl 4-(1-ammoniumethyl)benzoate sulfate by reacting racemic methyl 4-(1-aminoethyl)benzoate with an acylating agent in the presence of a lipase to give methyl 4-(1-aminoethyl)benzoate and subsequently precipitating methyl 4-(1-ammoniumethyl)benzoate sulfate by adding sulfuric acid.