Cationic dyestuffs

Abstract

Dyestuffs of the formula ##STR1## IN WHICH R denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy, aralkoxy, aryloxy, alkylamino, aralkylamino, arylamino, acylamino, carboxylic acid ester, carbonamido, acyl, halogen or nitrile, R.sub.1 denotes hydrogen, alkyl or aralkyl, R.sub.2 denotes hydrogen, alkyl, alkenyl, carbonamide or nitrile, R.sub.3 denotes alkyl, alkenyl or aralkyl, R.sub.4 denotes hydrogen, alkyl, alkenyl, aralkyl, alkoxy or aralkoxy, alkylamino, aralkylamino, acylamino, carbonamido, nitrile, nitro or halogen, R.sub.5 and R.sub.6 denote hydrogen, alkyl, aralkyl or a cycloaliphatic 5-membered or 6-membered ring, or R.sub.6 together with R.sub.1 forms a hydroaromatic 6-membered ring and An.sup.(-) represents an anion, and Processes for their preparation and their use for dyeing and printing natural and synthetic materials.

Dependencies are inferred from the claim text.