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:
May. 21, 2013
Filed:
Apr. 05, 2011
Christof Wilhelm Wigbers, Mannheim, DE;
Christoph Mueller, Mannheim, DE;
Johann-peter Melder, Boehl-Iggelheim, DE;
Bernd Stein, Alsbach-Haehnlein, DE;
Harald Meissner, Hassloch, DE;
Gerd Haderlein, Gruenstadt, DE;
Norbert Gutfrucht, Lambrecht, DE;
Christof Wilhelm Wigbers, Mannheim, DE;
Christoph Mueller, Mannheim, DE;
Johann-Peter Melder, Boehl-Iggelheim, DE;
Bernd Stein, Alsbach-Haehnlein, DE;
Harald Meissner, Hassloch, DE;
Gerd Haderlein, Gruenstadt, DE;
Norbert Gutfrucht, Lambrecht, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present application relates to a process for preparing unsymmetric secondary tert-butylamines which, as well as the tert-butyl radical, also comprise an alkyl, cycloalkyl or benzyl radical. They are prepared by reacting corresponding aldehydes with tert-butylamine and hydrogen in the presence of hydrogenation catalysts (reductive amination) in the liquid phase.