Naphtholsulphonic acid compounds, their preparation and use as coupling components

US4435334A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Frank-Michael Stohr · Odenthal, DE
• Peter Wild · Odenthal, DE
• Horst Nickel · Leverkusen, DE

Key dates

• Filing date: Dec 28, 1981
• Grant date: Mar 6, 1984
• Expiry date: Dec 28, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B44/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds which contain ammonium groups and sulphonic acid groups and which, in the betaine form, correspond to the formula ##STR1## wherein X denotes --CO-- or --SO.sub.2 --, PA1 R.sub.1 denotes hydrogen or alkyl, PA1 R.sub.2, R.sub.3 and R.sub.4, independently of one another denote alkyl, alkenyl or aralkyl, or PA1 R.sub.4 denotes ##STR2## Y denotes alkylene or xylylene, m denotes 1 or 2, PA1 n denotes 0 or 1, and PA1 R.sub.5 and R.sub.6, independently of one another, denote hydrogen, alkyl, alkoxy or halogen, PA1 and in addition, if n=1, PA1 R.sub.2 or R.sub.4 denotes amino, alkylamino, dialkylamino, aryl or cycloalkyl, PA1 R.sub.2 and R.sub.3, together with the nitrogen atom which is bonded to them, denote a 5-membered or 6-membered ring, PA1 R.sub.2, R.sub.3 and R.sub.4, together with the nitrogen atom which is bonded to them, denote a pyridinium ring, a group of the formula ##STR3## or hydrogen, Y denotes arylene, benzylene or a radical of the formula ##STR4## Z denotes a direct bond, --(CH.sub.2).sub.p --, --O--, --O--(CH.sub.2).sub.p --O--, --SO.sub.2 --, --NHCO--, --NHCONH--, --NHCO--(CH.sub.2).sub.p --CONH-- or --CONH--(CH.sub.2).sub.p --NHCO--, PA1 p denotes 1, 2 or 3, a…