Process for the preparation of 1,4-alkylenediamines
Process for the preparation of 1,4-alkylenediamines of the general formula I …… in which the substituents R and R , independently of one another, denote hydrogen, C1- to C10-alkyl, phenyl or benzyl, by reaction of succinonitriles of the general formula II …… in which R and R have the abovementioned...
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| creator | IRGANG, MATTHIAS SIEGEL, HARDO KOEHLER, ULRICH |
| description | Process for the preparation of 1,4-alkylenediamines of the general formula I …… in which the substituents R and R , independently of one another, denote hydrogen, C1- to C10-alkyl, phenyl or benzyl, by reaction of succinonitriles of the general formula II …… in which R and R have the abovementioned meanings, with hydrogen at temperatures of 30 to 250 DEG C and pressures of 50 to 350 bar over hydrogenation catalysts, in which the hydrogenation catalysts contain cobalt oxide and one or more oxides of the elements iron, nickel, manganese, chromium, molybdenum, tungsten, phosphorus and one or more oxides of the alkali metal, alkaline earth metal, rare earth metal groups of the periodic table of the elements, of scandium and/or of yttrium. |
| format | Patent |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Process for the preparation of 1,4-alkylenediamines |
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