Bayer Aktiengesellschaft

Heinz Ziemann

Rudolf Braden

Dietmar Bielefeldt

Michael Negele

Wolfgang Kiel

Herbert Salzburg

Karl-Heinrich Mohrmann

Erich Klauke

Kurt Findeisen

Reinhard Lantzsch

Hans-Ludwig Elbe

Kuno Wagner

Thomas Himmler

Heinz U Blank

Bernd Baasner

Kurt Stoepel

Jan Mazanek

Wilhelm Sirrenberg

Hans-Joachim Kabbe

Klaus Naumann

Dieter Habich

Johannes Blahak

Dietmar Kuhnt

Holger Meyborg

Manfred Hajek

Karl-Rudolf Gassen

Christian Laue

Friedrich Werner

Gerhard Zoebelein

Hans Knupfer

Wolfgang Pfluger

Gunther Gramm

Rudolph Braden

Andrea Mayer

Annedore Mayer

Hildegard E Mayer

Saturated, fluorine-containing and chlorine-free hydrocarbons are prepared by catalytically hydrogenating unsaturated, fluorine- and chlorine-containing hydrocarbons at temperatures above 80.degree. C. in the gas phase.

Process for the preparation of saturated, fluorine-containing and

The invention relates to a new process for the preparation of (hetero)arylalk(en/in)ylamines of the formula (I) ##STR1## in which A represents ethane-1,2-diyl (ethylene, dimethylene, --CH.sub.2 --CH.sub.2 --) or represents ethene-1,2-diyl (ethenylene, vinylene, --CH.dbd.CH--) or represents ethine-1,2-diyl (ethinylene, --C.ident.C--), characterized in that

Process for the preparation of (hetero)arylalk(en/in)ylamines and

New .alpha.-trifluoromethyl-substituted, saturated bicyclic amines of the formula ##STR1## in which R.sup.1 represents hydrogen, C.sub.1 - to C.sub.8 -alkyl or C.sub.1 - to C.sub.8 -alkoxy,

.alpha.-trifluoromethyl-substituted, saturated bicyclic amines

The present invention relates to new carboxylic acid halides containing trifluoromethyl groups, of the formula (I) ##STR1## in which the symbols used have the meanings given in the description, a process for their preparation by reaction of perhalogenoalkanes with carbon monoxide and an olefin and their use for the preparation of textile auxiliaries.

Carboxylic acid halides containing trifluoromethyl groups and a process

A process for the preparation of partially fluorinated alcohols starting from halogen-containing alkenes, and 2,2,3,3,4,4-hexafluorocyclopentanol as a new partially fluorinated alcohol.

Process for the preparation of partially fluorinated alcohols

Reaction products of oxo compounds and amines or ammonia, in which at least one substituent is aromatic and monosubstituted to trisubstituted by halogen, can be catalytically hydrogenated to the respective amines, the halogen essentially being completely retained if an Ni-containing or Co-containing catalyst is employed and the reaction is carried out in the presence of organic sulphur compounds.

Process for the preparation of amines

The catalytic hydrogenation of .alpha.,.beta.-unsaturated ketones of the formula

Process for the hydrogenation of .alpha.,.beta.-unsaturated ketones

A process for the preparation of a hydroxybenzaldoxime O-ether of the formula ##STR1## in which R.sup.1 represents alkyl, comprising

Process for the preparation of hydroxybenzaldoxime O-ethers

2,3,5,6-Tetrafluorobenzoic acid is prepared by hydrogenolysis of pentafluorobenzoic acid (esters).

Process for the preparation of 2,3,5,6-tetrafluorobenzoic acid

Insecticidally and acaricidally active novel substituted furazanes of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen, halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio or optionally substituted aryloxy, or

Novel substituted furazane

Novel substituted 5-cycloalkyl-2,2-dimethyl-pentan-3-ones of the formula ##STR1## in which R is optionally substituted cycloalkyl,

Substituted 5-cycloalkyl-2,2-di-methyl-pentan-3-ones

The present invention relates to new polyamines corresponding to the formula ##STR1## in which R.sup.1 represents an alkyl, cycloalkyl or aryl group and

Polyamines

Partially hydrogenated derivatives of 2-nitro-1,1,1-trifluoroalkanes, in particular 2-oximino- and 2-hydroxylamino-1,1,1-trifluoroalkanes, are prepared by catalytically hydrogenating 2-nitro-1,1,1-trifluoroalkanes until a maximum of 2.2 moles of hydrogen per mole of 2-nitro-1,1,1-trifluoroalkane have reacted.

Process for the preparation of partially hydrogenated derivatives of

Novel substitued 5-cycloalkyl-2,2-dimethyl-pentan-3-ones of the formula ##STR1## in which R is optionally substituted cycloalkyl,

A process for the preparation of neopentylamine which is virtually free from amines with a higher degree of alkylation which comprises contacting neopentanol with ammonia at a temperature of 200.degree. to 300.degree. C. in the presence of a hydrogenation catalyst. The process can be carried out under increased pressure and in the presence of catalytic amounts of hydrogen.

Growing community of inventors

Leichlingen, Germany

Heinz Ziemann