| 摘要 |
A method and a useful catalyst composition for the production of aromatic nitriles for the corresponding nuclearly halogenated aromatic compounds which contain from 1 to 4 halogen atoms substituted selected from chlorine, bromine and iodine are described. The method involves the steps of heating the halogenated aromatic compound to a temperature of at least 100 DEG C. for a period of at least 2 hours in the presence of potassium cyanide and a catalyst composition comprised of: (a) a ether component selected from the group consisting of 18-crown-6 ether, polyethers, alkyoxypolyethers and mixtures thereof having a molecular weight between about 200 and about 25,000, and (b) a palladium salt complex comprised of: (1) a palladium salt selected from palladium iodide, chloride, bromide and mixtures thereof, and (2) an organophosphine selected from the group consisting of alkyarylphosphines and triarylphosphines containing from about 8 to about 80 carbon atoms.
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