Catalyst system containing Ni(0) for hydrocyanation

摘要

A system comprising a) Ni(0) b) from 4 to 10 mol per mol of Ni(0) in a) of a compound (I) of the formula P(X¹R¹)(X²R²)(X³R³) (I) where X¹, X², X³ are each, independently of one another, oxygen or a single bond, R¹, R², R³ are, independently of one another, identical or different organic radicals and c) from 1 to 4 mol per mol of Ni(0) in a) of a compound (II) of the formula where X¹¹, X¹², X¹³ X²¹, X²², X²³ are each, independently of one another, oxygen or a single bond, R¹¹, R¹² are identical or different, individual or bridged organic radicals, R²¹, R²² are identical or different, individual or bridged organic radicals and Y is a bridging group is suitable as catalyst for preparing mixtures of monoolefinic C₅ mononitriles having nonconjugated C-C and C-N bonds by hydrocyanation of a 1,3-butadiene-containing hydrocarbon mixture and for preparing a dinitrile by hydrocyanation of a mixture of monoolefinic C₅ mononitriles having nonconjugated C-C and C-N bonds.