Basf Aktiengesellschaft

Basf Se Corporation

Harald Meissner

Johann-Peter Melder

Ekkehard Schwab

Gerd Haderlein

Christof Wilhelm Wigbers

Bernd Stein

Thomas Preiss

Bram Willem Hoffer

Werner Hefner

Holger Evers

Luise Spiske

Christoph Mueller

Hermann A Steinhauser

Norbert Gutfrucht

Guido Ellinghorst

Andreas Huebner

Christoph Müller

Jan Eberhardt

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.

Process for preparing unsymmetric secondary tert-butylamines in the liquid phase

The invention relates to a process for preparing &#x3b2;-aminopropionic acid derivatives by reacting a primary or secondary amine with an acrylic acid derivative, wherein comprises

Method for the production of &#x3b2;-aminopropionic acid derivatives

In a process for removing water by pervaporation or vapor permeation from mixtures with alcohols and/or carboxylic acids and/or carboxylic esters by bringing the mixture into contact with one side of a membrane and removing the water-containing permeate in vapor form from the other side of the membrane, the membrane used has been obtained by plasma polymerization.

Removal of water from mixtures with alcohols and/or carboxylic acids

Growing community of inventors

Hassloch, Germany

Harald Meissner