Hydrogenation of unsaturated dinitriles using catalyst comprisin

Details Hydrogenation of unsaturated dinitriles using catalyst comprisin Hydrogenation of unsaturated dinitriles using catalyst comprisin

1979-08-07

1980-10-07

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252432, 260690, C07C 8512

Patent

active

042268095

ABSTRACT:
A branched chain unsaturated aliphatic dinitrile, e.g., as contained in a reaction product of acrylonitrile with isobutylene is subjected to hydrogenation under hydrogenation conditions in the presence of a combination or composition of catalysts including essentially at least one component selected from the group consisting of reaction products of an alkali metal borohydride with a palladium compound which is reducible by hydrogen to the elemental form and another component selected from a group consisting of the reaction products of an alkali metal borohydride with a nickel compound which is reducible by hydrogen to the elemental form, the individual components being primarily active as follows: the nickel component to hydrogenate nitrile groups and the palladium component to hydrogenate the olefinic unsaturation in the particular compounds hydrogenated; the process being carried out as a one-step process when the components are in admixture and as a two-step process when the components are used separately, one of them in one step and the other in another step of a two-step process. Completely saturated branched aliphatic diamines are produced.

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patent: 4078002 (1978-03-01), Brown
Polkovnikov et al., "Chem. Ab.", vol. 54, Ab. No. 1264.sup.2, (1960).

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