[Preparation and study of the phytotoxic activity of arylalkylamides. II. N-Phenethylamides].

: A series of N-phenetylamides was prepared and tested for phytotoxic activity. Comparison with N-benzylamides showed that lengthening the alkyl chain in the aralkylamide residue reduces phytotoxicity and that, also in the case of phenetylamides, phytotoxic activity is not due to inhibition of the Hill reaction.