Catalyst system containing Ni(0) for hydrocyanation

摘要

A system comprisinga) Ni(0)b) from 4 to 10 mol per mol of Ni(0) in a) of a compound (I) of the formulaP(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 radicalsandc) 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 groupis 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.