| 摘要 |
beta -Phenyl-acrylic acid nitriles of the general formula IN WHICH X stands for a substituent; n denotes the numbers 0 to 3; R1 stands for an optionally substituted phenyl or naphthyl group, for an aromatic-heterocyclic radical which is linked via a carbon atom to the alpha -carbon atom of the beta -phenyl-acrylonitrile radical, or for a carboxyl group; and R stands for an alkyl group, for a radical WHERE R2 and R3 denote an alkyl radical, for a radical -So3Z where Z denotes H or a metal atom, or for a radical -CH2OR4 where R4 denotes an alkyl, aralkyl or aryl radical, and a process for their production characterised by treating toluene derivatives of the formula WHEREIN X, n and R have the meanings given above in an aqueousalkaline medium at temperatures of about 50 DEG to 120 DEG C with an alkali metal polysulphide and subsequently without intermediate isolation with nitriles of the formula R5 - CH2 - CN wherein R5 stands for an optionally substituted phenyl or naphthyl group, for an aromatic-heterocyclic radical which is linked via a carbon atom to the group CH2, for a carboxyl, carboxamide or carboxylic ester group.
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