Process for the preparation of acyl cyanides

Details Process for the preparation of acyl cyanides Process for the preparation of acyl cyanides

1978-12-08

1981-08-18

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603265J, 260465R, 2604651, 2603478, 544106, 548128, 548215, 548240, 548225, 548212, 548335, 548341, 548346, 548373, 548375, 548377, 548378, 546184, 546225, C07C 5154, C07C 6304

Patent

active

042845840

ABSTRACT:
Acyl cyanides of the formula ##STR1## in which R represents alkyl or substituted alkyl of from 1 to 8 carbon atoms, cycloalkyl or substituted cycloalkyl of from 3 to 12 carbon atoms, aryl or substituted aryl; or an optionally substituted 5-membered or 6-membered heterocyclic radical which can also be fused with a benzene ring
are prepared by reacting the corresponding carboxylic acid anhydride in the presence of a carboxylic acid halide with an alkali metal cyanide or anhydrous acid, at a temperature of between 50.degree. and 300.degree. C.

REFERENCES:
Thesing et al., Angewandte Chemie, vol. 68, pp. 425-426, 434-435, (1956), (PTO Rough Translation Attached).
Erlenmeger, Liebigs Ann. Chem. vol. 287, pp. 302-310, (1895).
Migrdichian, "Organic Synthesis" vol. 1, pp. 291-292, (1957).

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