| 摘要 |
Compounds which contain ammonium groups and sulphonic acid groups and which, in the betaine form, correspond to the formula <IMAGE> wherein X denotes -CO- or -SO2-, R1 denotes hydrogen or alkyl, R2, R3 and R4, independently of one another denote alkyl, alkenyl or aralkyl, or R4 denotes <IMAGE> Y denotes alkylene or xylylene, m denotes 1 or 2, n denotes 0 or 1, and R5 and R6, independently of one another, denote hydrogen, alkyl, alkoxy or halogen, and in addition, if n=1, R2 or R4 denotes amino, alkylamino, dialkylamino, aryl or cycloalkyl, R2 and R3, together with the nitrogen atom which is bonded to them, denote a 5-membered or 6-membered ring, R2, R3 and R4, together with the nitrogen atom which is bonded to them, denote a pyridinium ring, a group of the formula <IMAGE> or hydrogen, Y denotes arylene, benzylene or a radical of the formula <IMAGE> Z denotes a direct bond, -(CH2)p-, -O-, -O-(CH2)p-O-, -SO2-, -NHCO-, -NHCONH-, -NHCO-(CH2)p-CONH- or -CONH-(CH2)p-NHCO-, p denotes 1, 2 or 3, and R7 denotes hydrogen, alkyl, alkoxy or halogen, and wherein the cyclic and acyclic radicals can contain non-ionic substituents, their preparation and their use as coupling components in the preparation of azo dyestuffs.
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