Hydrocyanation of 2-pentenenitrile

Details Hydrocyanation of 2-pentenenitrile Hydrocyanation of 2-pentenenitrile

2011-04-05

2011-04-05

Shiao, Rei-tsang (Department: 1628)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C502S162000

Reexamination Certificate

active

07919646

ABSTRACT:
The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited:wherein R1and R5are independently selected from the group consisting of C1to C5hydrocarbyl; and R2, R3, R4, R6, R7and R8are independently selected from the group consisting of H and C1to C4hydrocarbyl.

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