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:
Apr. 29, 2014
Filed:
Nov. 23, 2011
Melanie Bonnekessel, Ludwigshafen, DE;
Klaus Ditrich, Gönnheim, DE;
Jürgen Däuwel, Heidelberg, DE;
Achim Sorg, Mannheim, DE;
Wolfgang Ladner, Fussgönheim, DE;
Bryan Cooper, Mannheim, DE;
Rene Backes, Lampertheim, DE;
Melanie Bonnekessel, Ludwigshafen, DE;
Klaus Ditrich, Gönnheim, DE;
Jürgen Däuwel, Heidelberg, DE;
Achim Sorg, Mannheim, DE;
Wolfgang Ladner, Fussgönheim, DE;
Bryan Cooper, Mannheim, DE;
Rene Backes, Lampertheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to the preparation of isomerically pure substituted cyclohexanols starting from a mixture of cis/trans substituted cyclohexanols which comprises reacting the cis/trans mixture of a substituted cyclohexanol with a dicarboxylic acid anhydride in the presence of a lipase, to give the trans semi-ester which is separated off from the unreacted substituted cyclohexanol cis isomer.