Basf Aktiengesellschaft

Basfaktiengesellschaft

Basf Aktiengsellschaft

Basf Aktiengellschaft

Tom Witzel

Franz Merger

Eberhard Fuchs

Wolfgang Harder

Guido Voit

Johann-Peter Melder

Rolf Hartmuth Fischer

Werner Schnurr

Klaus Ebel

Boris Breitscheidel

Klemens Flick

Alwin Rehfinger

Claus-Ulrich Priester

Hermann Luyken

Detlef Kratz

Karl-Heinz Ross

Martin Brudermueller

Gerhard Laqua

Gerhard Koppenhoefer

Wolfgang Siegel

Rainer Becker

Michael Hesse

Hardo Siegel

Manfred Julius

Matthias Irgang

Harald Rust

Alexander Aumuller

Alfred Krause

Helmut Lermer

Martin Holderbaum

Peter Polanek

Gerd Linden

Horst Zimmermann

Andreas Otterbach

Hans Horler

Peter Wahl

J Urgen Frank

Bernd Bruchmann

Wolfgang Hoelderich

Peter Bassler

Rudolf Kummer

Norbert Rieber

Matthias Kroner

Achim Stammer

Karsten Eller

Ludwig Schuster

Alfred Hagemeyer

Heinz-Josef Kneuper

Hans Renz

Klaus Mundinger

Daniel Heineke

Hermann Petersen

Axel Paul

Ulrich Koehler

Manfred Sauerwald

Martin Schmidt-Radde

Uwe Pressler

Stefan Wolff

Arnold Wittwer

David Agar

Eckehard Danz

Gunther Achhammer

Peter Lingelbach

Peter Brandt

Cristina Freire Erdbr&uuml;gger

Wolfgang Friedrich

Rudolf Bazner

Martin Bruderm&uuml;ller

Ursula Siebenhaar

Martin Brudermuller

Konrad Stiefenhofer

Klaus P Stadler

Gunter Boettger

Gunther Ruider

Horst Nauhauser

Alcohols are prepared by the catalytic hydrogenation of the corresponding carbonyl compounds at elevated temperatures and at superatmospheric pressure in the liquid phase by a process in which the catalyst used contains copper on an SiO,-containing carrier in the presence or absence of one or more of the elements magnesium, barium, zinc and chromium.

Preparation of alcohols

In a process for preparing a bicyclic amidine by reacting a lactone and a diamine with elimination of water, water formed by elimination is removed from the reaction mixture during the reaction. A diazabicycloalkene, a process for its preparation and its use are also described.

Preparation of bicyclic amidines and diazacycloalkenes

Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which

Preparation of aliphatic alpha, omega-aminonitriles

A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 by

Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a

Process for the preparation of polyalcohols

Sterically hindered 4-amino-piperidine with a low dimer content, its

Process for purifying sterically hindered 4-amino piperidines

Preparation of 2-cyano-3,3-diarylacrylic esters

Nitrobenzene or a nitrobenzene substituted on the nucleus is subjected to reductive coupling to give the corresponding azobenzene and azoxybenzene under heterogeneous catalysis with substantial avoidance of overreduction to aniline derivatives by means of a redox catalyst in its reduced or partly reduced form, the redox catalyst containing at least one active metal component capable of a change of oxidation state.

Reductive coupling of nitrobenzene or nitrobenzenes substituted on the

Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine

Preparation of aliphatic alpha omega-aminonitriles

Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process in which the catalyst

A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine from 3-cyano-3,5,5-trimethylcyclohexanone which requires three spatially separated reaction spaces, in order to carry out the following three steps in sequence: a) reacting the 3-cyano-3,5,5-trimethylcyclohexanone with excess ammonia on acidic metal-oxide catalysts in a first reaction space at from 20.degree. to 150.degree. C. and from 50 to 300 bar, b) hydrogenating the resultant reaction products using hydrogen in a second reaction space in the presence of excess ammonia and preferably liquid ammonia on hydrogenation catalysts, optionally using basic components or on neutral or basic supports at from 50.degree. to 100.degree. C. and at from 50 to 300 bar, and c) hydrogenating the resultant reaction products in the presence of hydrogen and also ammonia in a third reaction space on hydrogenation catalysts, optionally using basic components or on neutral or basic supports at from 110.degree. to 160.degree. C. and at from 150 to 300 bar. These three steps in sequence provide a substantially complete reaction of the original 3-cyano-3,3,5-trimethylcyclohexanone reactant with a yield of 96% of the desired diamino product in which the cis-content of the diamine is 70%.

Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine

Preparation of aliphatic, alpha omega-aminonitriles

Process for preparing D,L-aspartic acid from ammonium salts of the

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Ludwigshafen, Germany

Tom Witzel