| abstract |
R, Aryl, Alkyl, Aralkyl, Styryl oder Alkoxy, R 2 Wasserstoff, Cyan, Carboxy, Alkoxycarbonyl u. a., R 3 , R 4 , R 6 und R 7 Wasserstoff, Alkyl, Alkoxy oder Halogen R 5 Wasserstoff, Alkyl oder Aryl, R a und R 9 Wasserstoff, Cycloalkyl, Alkenyl, Alkyl oder Aralkyl, A" ein Anion, w die Wertigkeit des Anions A und n 0 oder 1 bedeuten. Compounds of the formula are particularly suitable for optically brightening synthetic fiber materials, in particular acrylic fibers in the R, aryl, alkyl, aralkyl, styryl or alkoxy, R 2 is hydrogen, cyan, carboxy, alkoxycarbonyl and others, R 3 , R 4 , R 6 and R 7 are hydrogen, alkyl, alkoxy or halogen R 5 are hydrogen, alkyl or aryl, R a and R 9 are hydrogen, cycloalkyl, alkenyl, alkyl or aralkyl, A "an anion, w the valence of the anion A and n is 0 or 1. n n n The new brighteners are produced and used in accordance with methods known per se. |