Preparation of amines

Preparation of amines

Amines of the formula (I)where R1, R2, R3 and R4 are each, independently of one another, hydrogen, straight-chain or branched C1-C12-alkyl, C3-C12-cycloalkyl, C6-C10-aryl or C7-C11-aralkyl, where at least one of the radicals R1 and R2 is aryl or aralkyl whose aromatic unit is substituted by at least...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOEHN ARTHUR, FUNKE FRANK, LIANG SHELUE
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Amines of the formula (I)where R1, R2, R3 and R4 are each, independently of one another, hydrogen, straight-chain or branched C1-C12-alkyl, C3-C12-cycloalkyl, C6-C10-aryl or C7-C11-aralkyl, where at least one of the radicals R1 and R2 is aryl or aralkyl whose aromatic unit is substituted by at least one halogen, are prepared by catalytic, hydrogenative amination of carbonyl compounds of the formula (II) or alcohols of the formula (III)by means of nitrogen compounds of the formula (IV)where R1 to R4 are as defined above, in the presence of Co- and/or Ni-containing catalysts, in the additional presence of solid acid cocatalysts and in the absence of organic sulfur compounds.