Method for producing alkyl and/or cycloalkyl-substituted...

Details Method for producing alkyl and/or cycloalkyl-substituted... Method for producing alkyl and/or cycloalkyl-substituted...

2006-09-05

2006-09-05

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Nitriles

Reexamination Certificate

active

07102025

ABSTRACT:
In the production method of the invention, a cyclic aldehyde having an alkyl group and/or a cycloalkyl group directly bonded to a skeletal ring and a formyl group directly bonded to the skeletal ring is brought into contact with ammonia and oxygen in vapor phase in the presence of a catalyst. As a result thereof, the formyl group is selectively ammoxidized into a cyano group to convert the cyclic aldehyde into a corresponding cyclic nitrile. The method enables a long-term, high-yield production of the cyclic nitrile using a reduced amount of ammonia.

REFERENCES:
patent: 19647795 (1998-05-01), None
patent: 1136120 (2001-09-01), None
patent: WO 96/36593 (1996-11-01), None

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