Process for preparing alpha-arylacrylonitriles

Details Process for preparing alpha-arylacrylonitriles Process for preparing alpha-arylacrylonitriles

1985-05-17

1986-04-08

Torrence, Dolph H.

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

Organic compounds

Nitriles

558345, C07C12175, C07C12170, C07C12000

Patent

active

045811768

ABSTRACT:
An alpha-arylacrylonitrile is prepared by reacting an aryl ketone having a removable hydrogen alpha to the carbonyl group with a cyanide ion source which is free of radicals that would stabilize a cyanohydrin corresponding to the aryl ketone and with a Lewis acid in the presence of an activating amount of water and/or HCl and preferably in the presence of a solvent. In a preferred embodiment, the aryl ketone is a tetralone, the cyanide ion source is sodium cyanide, the Lewis acid is aluminum chloride, and the product is a 1-cyano-3,4-dihydronaphthalene.

REFERENCES:
patent: 4536343 (1985-08-01), Ramachandran
Jacobs et al., J. Org. Chem., vol. 48, pp. 5134-5135, (1983).

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