Patent ID: 6737539
Filing Date: 2004-05-18
Classification: C07C

Abstract:
A hydrocyanation process of preparing aliphatic nitrile, said process comprising: contacting an ethylenically unsaturated olefin compound with HCN in the presence of a catalyst composition, wherein said catalyst composition comprises a Group VIII metal and a phosphonite ligand wherein the ligand having a structure selected from the group consisting of: wherein the X groups are either the same or different unbridged organic aromatic groups selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, and combinations thereof, wherein Q is a substituted or unsubstituted divalent aromatic or non aromatic hydrocarbon radical. The substituent on the Q groups is independently selected from the group consisting of C1 to C12 alkyl, cycloalkyl, alkoxy, alkylaryl, aryl, hetero aryl wherein the hereto aryl is pyran, and cyano.