Method for preparing .alpha.,.beta.-unsaturated nitriles

Details Method for preparing .alpha.,.beta.-unsaturated nitriles Method for preparing .alpha.,.beta.-unsaturated nitriles

1990-11-21

1992-08-11

Brust, Joseph Paul

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

Organic compounds

Nitriles

558312, 558313, 558382, C07C25320

Patent

active

051380862

ABSTRACT:
A method for preparing an .alpha.,.beta.-unsaturated nitrile comprises bringing an .alpha.-oxycarboxylic acid amide represented by the following general formula: ##STR1## wherein R' and R" each represents a hydrogen atom or an alkyl group, with the proviso that at least one of R' and R" represents an alkyl group, into contact with a solid acid catalyst with heating in the presence of water in a molar ratio of not more than 15 with respect to the .alpha.-oxycarboxylic acid amide. The method makes it possible to directly produce an .alpha.,.beta.-unsaturated nitrile at high yield and high selectivity utilizing an .alpha.-oxycarboxylic acid amide as a starting material, which can easily be obtained from an .alpha.-oxynitrile.

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