Catalyst system comprising Ni(0) and phosphorous ligands is useful for the production of nitrile and dinitrile compounds

摘要

A catalyst system comprises Ni(0) and phosphorous ligands. A catalyst system (I) comprises: (A) 1 mol Ni(0); (B) 4-10 mol of a compound of formula P(X<1>R<1>)(X<2>R<2>)(X<3>R<3>) (1); and (C) 1-4 mol of a compound of formula (2); P(R<11>-X<11>)(R<12>-X<12>)-X<13>-Y-X<23>-P(X<21>-R<21>)(X<22>-R<22>) (2); X<1>,X<2>,X<3>,X<11>,X<12>,X<13>,X<21>, X<22>,X<23> = oxygen or a single bond; R<1>-R<3> = organic groups; R<11>,R<12>,R<21>,R<22> = single or bridged organic group; Y = bridging group. Independent claims are included for: (i) a process for the production of the system (I) by reaction of Ni(O) with a compound (B) in the presence of a liquid diluent; reaction of the resulting product with a compound (C) in the presence of a liquid diluent to yield the system (I); (ii) a process for the production of 5C-monoolefinic mononitrile having nonconjugated C=C and C=N bonds by hydrogenation of a 1,3-butadiene containing hydrocarbon mixture in the presence of a catalyst whereby the hydrocyanation is carried out in the presence of the catalyst system (I).