Process for the .alpha.-chlorination of phenylacetonitriles

Details Process for the .alpha.-chlorination of phenylacetonitriles Process for the .alpha.-chlorination of phenylacetonitriles

C - Chemistry, Metallurgy

07

C

C07C 255/35 (2006.01) C07C 253/30 (2006.01)

Patent

CA 2070577

Process for the .alpha.-chlorination of phenyl- acetonitriles, for example benzyl cyanide, in which the phenylacetonitrile is contacted with a suitable chlorinating agent, sulphuryl chloride or chlorine gas, while an amount of strong acid, preferably HCl, is also present in the reaction mixture. The induction time and the reaction rate are dependent on, among other factors, the concentration of the acid. Preferably, the reaction is carried out under pressure. The reaction is well controllable.

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