Patent ID: 7253298

Claim:
A process for hydrocyanating an ethylenically unsaturated aliphatic nitrile, or a linear pentenenitrile, by reacting it in a liquid medium with hydrogen cyanide in the presence of a catalyst corresponding to the general formula (II): M[L f ] t (II) wherein: M is Ni, L f represents an organic ligand of formula (I) and t represents a number between 1 and 4 (inclusive) wherein the organic ligand corresponds to the general formula I below: in which: T and T 1 , represent a phosphorus atom, R 1 , R 2 , R 3 and R 4 represent a substituted or unsubstituted phenyl group, having one or more rings, which are in fused form or not, optionally having one or more heteroatoms, U 1 , U 2 , U 3 and U 4 represent an oxygen atom, R 5 and R 6 , represent a substituted or unsubstituted phenyl group, n is equal to 0, and L 1 represents SO 2 .