Process for producing β-ketonitrile compound

Details Process for producing β-ketonitrile compound Process for producing β-ketonitrile compound

2006-05-23

2006-05-23

Richter, Johann (Department: 1626)

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

Organic compounds

Nitriles

Reexamination Certificate

active

07049458

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 β-ketonitrile compound, subsequently transferring the salt to an aqueous medium, and neutralizing the solution to obtain the β-ketonitrile compound in a free state, wherein a water-immisible organic solvent and water are added to the reaction mixture containing the β-ketonitrile compound metal salt yielded to transfer the metal salt to the water, the resultant aqueous solution of the β-ketonitrile compound metal salt is separated from the organic solvent by phase separation or another technique and then neutralized, and the resultant free β-ketonitrile compound is taken out by extraction with an organic solvent.

REFERENCES:
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patent: 89011 (1983-09-01), None
patent: 623590 (1994-11-01), None
patent: 787858 (1957-12-01), None

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