Sulfo group-free disazo and polyazo compounds containing at least two basic or cationic group and which are in metal-free or 2:1 metal complex form

US4468347A · kind A · utility

Assignee

• Sandoz AG · CH

Inventors

• Paul Doswald · Münchenstein, CH
• Emil Moriconi · Basel, CH
• Helmut Moser · Reinach, CH
• Horst Schmid · Sontheim, DE

Key dates

• Filing date: Mar 24, 1982
• Grant date: Aug 28, 1984
• Expiry date: Mar 24, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/09
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disazo and polyazo compounds of the formula ##STR1## wherein each A is independently ##STR2## and PA1 each R.sub.1 and the ##STR3## radical to which it is attached, taken together, independently, are ##STR4## wherein ring B may be substituted by one substituent selected from halogen, C.sub.1-4 alkyl and C.sub.1-4 alkoxy, and each R.sub.3 is independently C.sub.1-4 alkyl, or wherein the ** denotes the carbon atom attached to X, or each A, R.sub.3 and the ##STR5## radical to which they are attached, taken together, independently, are each R.sub.1 and the ##STR6## radical to which it is attached, taken together, independently, are the radical of an aromatic carbocyclic or heterocyclic coupling component, ##STR7## wherein each R.sub.21 is independently halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, PA1 p is 0, 1 or 2, PA1 the * denotes the carbon atom attached to the --N.dbd.N-- radical, and PA1 the ** denotes the carbon atom attached to X, each PA1 A.sub.1 and A.sub.2 taken together are --O--Me--O--, wherein Me is copper, cobalt, iron, nickel, manganese or zinc, or each PA1 A.sub.1 is hydroxy, and each PA1 A.sub.2 is independently hydrogen, hydroxy or C.sub.1-4 alkoxy, PA1 X is a direct b…