The study of the influence of nuclear substituents on the coupling power of diazotised p- aminodimethylaniline (compare Parts I and 11, J., 1941, 613; 1942, 755) required the preparation of derivatives of the base having chloro-or nitro-groups in the o-and m-positions to the dimethylamino-group. 2-Chloro-4-acetamidodimethylaniline yields the 6-nitro- derivative by nitration in sulphuric acid. In the chlorination of $-nitro-4- ...
