PROCESS FOR PRODUCING $g(b)-KETONITRILE COMPOUND

Title:

PROCESS FOR PRODUCING $g(b)-KETONITRILE COMPOUND

Document Type and Number:

WIPO Patent Application WO/2002/051798

Kind Code:

A1

Abstract:

A process comprising reacting an aliphatic carboxylic ester compound with acetonitrile in the presence of a metal alkoxide to yield a metal salt of a $g(b)-ketonitrile compound, subsequently transferring the salt to an aqueous medium, and neutralizing the solution to obtain the $g(b)-Ketonitrile compound in a free state, wherein a water-incompatible organic solvent and water are added to the reaction mixture containing the $g(b)-Ketonotrile compound metal salt yielded to transfer the metal salt to the water, the resultant aqueous solution of the $g(b)-Ketonitrile compound metal salt is separated from the organic solvent by phase separation or another technique and then neutralized, and the resultant free $g(b)- Ketonitrile compound is taken out by extraction with an organic solvent.

Inventors:

HARADA KATSUMASA (JP)
NISHINO SHIGEYOSHI (JP)
HIROTSU KENJI (JP)
NAKAMURA AKIRA (JP)
HARADA TAKASHI (JP)

Application Number:

PCT/JP2001/011390

Publication Date:

July 04, 2002

Filing Date:

December 25, 2001

Export Citation:

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Assignee:

UBE INDUSTRIES (JP)
HARADA KATSUMASA (JP)
NISHINO SHIGEYOSHI (JP)
HIROTSU KENJI (JP)
NAKAMURA AKIRA (JP)
HARADA TAKASHI (JP)

International Classes:

C07C253/30; C07C255/17; C07C255/31; (IPC1-7): C07C255/17; C07C253/30

Foreign References:

EP0623590A1	1994-11-09
US4945177A	1990-07-31
EP0089011A1	1983-09-21
GB787858A	1957-12-18

Other References: