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US 4,728,743 AGranted
Process for the production of 3-oxonitriles
AssigneeDegussa AG
InventorsKarlheinz Drauz, Axel Kleemann, Elizabeth Wolf-Heuss
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Abstract
3-oxonitriles are produced by reaction of carboxylic acid esters with carboxylic acid nitriles in the presence of 70 to 80% suspension of sodium hydride in white oil. The oxonitrile are intermediate products for the production of 3-oxocarboxylic acid amides or esters and pesticides.
Claims6
A compound selected from the group consisting of 1-methylcyclopropanoylacetonitrile, (2,2-dichloro-1-methyl)-cyclopropanoylacetonitrile, 4,4-dimethyl-2-ethyl-3-oxopentanenitrile, 4,4-dimethyl-2-(3'-thienyl)-3-oxopentanenitrile and 4,4-dimethyl-2-(4'-chlorophenyl)-3-oxopentanenitrile.
Dependencies are inferred from the claim text.