| 摘要 |
There are described novel dyes of the formulae <IMAGE> +TR <IMAGE> in which R1 and R2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R1 and R2 together with the nitrogen atom, and optionally with the inclusion of further hetero atoms, can also form a 5- to 7-membered heterocycle, or one of the radicals R1 or R2 can be linked with the carbon atom, in the o-position with respect to the amino group, of the ring A to form a fused-on, saturated, unsubstituted or substituted 5- or 6-membered ring, X is =NR3, =NCOR4, <IMAGE> =NH or =O, wherein R3 is alkyl or unsubstituted or substituted phenyl, R4 is unsubstituted or substituted alkyl, aralkyl, aryl, vinyl, alkoxy, phenoxy or amino, and R5 is cyano, carbalkoxy, or unsubstituted or substituted carbonamide, and R6 is an electron-attracting radical, processes for producing them, and their use for dyeing and printing synthetic and semi-synthetic fibres, such as polyamide and cellulose triacetate materials, especially however polyester materials.
|
