Process for the preparation of acyl cyanides

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

1983-07-14

1984-06-26

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

549405, 549420, 260464, 549417, 549484, 260465R, 560 19, 560121, 260465H, 560125, 560155, 2604651, 560170, 548530, 548540, 548248, 548236, 548131, 548128, 548335, 548341, 548346, 548337, 548338, 548339, 548373, 548375, 548377, 548378, 548265, 548240, 548255, 548262, 544106, 544162, 544 8, 544 63, 546184, 546229, 546245, 546314, C07C12000

Patent

active

044565658

ABSTRACT:
Acyl cyanides of the general formula ##STR1## in which R represents alkyl or substituted alkyl of from 1 to 8 carbon atoms; cycloalkyl or substituted cycloalkyl with 3 to 12 carbon atoms; aryl or substituted aryl; or an optionally substituted 5-membered or 6-membered heterocyclic radical which can additionally also be fused with a benzene ring, are prepared by reacting the corresponding carboxylic acid anhydride in the liquid phase with anhydrous hydrocyanic acid, at a temperature of between 50.degree. to 250.degree. C.

REFERENCES:
patent: 2426014 (1947-08-01), Gresham
Thesing et al., Angewandte Chemie, vol. 68, pp. 425-426, 434-435, (1956).

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