Bayer Aktiengesellschaft

Andreas Schulze Tilling

Stefan Antons

Erich Wolters

Thomas Prinz

Jürgen Kintrup

Guido Giffels

Lutz Frohn

Michael Holzbrecher

Andreas Gr&ouml;schl

J&ouml;rg-Dietrich Jentsch

Rolf Bunnenberg

Jörg-Dietrich Jentsch

Gerald John

Hans-Jürgen Grob

Alcohols prepared by reacting carboxylic acids and/or carboxylic esters with hydrogen in the presence of a special catalyst.

Process and catalyst for preparing alcohols

The invention relates to a process for the preparation of diaminodicyclohexylmethane (&ldquo;PACM&rdquo;) with a proportion of trans,trans-4,4&prime;-diaminodicyclohexylmethane of from 17 to 24% by hydrogenation of diaminodiphenylmethane (&ldquo;MDA&rdquo;) in the presence of a pulverulent catalyst in a continuously operated suspension reactor at a conversion of MDA of at least 95%, based on the amount of MDA used.

Continuous process for the preparation of diaminodicyclohexylmethane

Method for producing catalysts containing ruthenium and the use thereof for hydrogenation

The invention relates to a process for the preparation of optically active alcohols from optically active carboxylic acids by reducing an optically active carboxylic acid with hydrogen in the presence of a catalyst comprising ruthenium and at least one further metal or transition metal having an atomic number in the range of from 23 to 82.

Method for producing optically active alcohols

The invention relates to a process for preparing optically active amino alcohols from optically active amino acids by reducing an optically active amino acid with hydrogen in the presence of a ruthenium-containing catalyst and an acid.

Method for producing optically active amino alcohols

Growing community of inventors

League City, TX, United States of America

Andreas Schulze Tilling