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US 4,069,252 AGranted
Process for the preparation of certain acyl cyanide compounds
AssigneeBayer Aktiengesellschaft
InventorsKurt Findeisen, Wilfried Draber, Herbert Schwarz
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Abstract
Acyl cyanide compounds of the formula ##STR1## are prepared by reacting an acid halide of the formula ##STR2## with anhydrous hydrocyanic acid in the presence of a tertiary amine at a temperature between -70.degree. and +100.degree. C. R can be hydrocarbyl or substituted hydrocarbyl and X is halogen.
Claims13
In a process for the preparation of an acyl cyanide compound of the general formula ##STR14## in which R is alkyl of from 1 to 4 carbon atoms, or phenyl optionally substituted by alkoxy of from 1 to 4 carbon atoms
- which process comprises reacting an acid halide of the general formula ##STR15## in which R is identified as above and
- X represents halogen,
- with anhydrous hydrocyanic acid
- which improvement comprises carrying out the reaction in the presence of an aliphatic, araliphatic or alicyclic tertiary amine, at a temperature between -70.degree. C and +100.degree. C.
1 more element
Dependencies are inferred from the claim text.