| Popis: |
2-Amino-6- N,N -dialkylaminobenzothiazole and 2-amino-4-N,N-di-alkylamino-6-thiocyanatobenzothiazoles were prepared by condensation of 4- N,N -dialkylaminoanilines and 2- N,N -dialkylaminoanilines, respectively, with ammonium thiocyanate and bromine in acetic acid. These amines were diazolised and coupled with substituted N,N -dialkylanilines to give 2-(substituted-4-N,N-dialkylaminophenyl)azo-6- N,N -dialkylaminobenzothiazole dyes and 2-(substituted-4- N,N -dialkylaminophenyl)azo-6-thiocyanato-4- N,N -dialkylaminobenzothiazole dyes. The dyes were applied to polyester and polyamide fibres and their dyeing properties assessed. |
