Benzoquinophthalone quaternary ammonium salt derivatives

Details Benzoquinophthalone quaternary ammonium salt derivatives Benzoquinophthalone quaternary ammonium salt derivatives

1985-10-18

1987-04-07

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544113, 544181, 544198, 544351, 544361, 546 8, 546 9, 546101, C07D40112, C07D41312, C07D40114

Patent

active

046562680

ABSTRACT:
There are described novel cationic quinophthalone compounds of the formula I ##STR1## wherein the symbols have the meanings defined in claim 1, and also processes for producing them. These novel quinophthalone compounds can be used in particular as dyes for dyeing and printing paper, greenish-yellow dyeings having good fastness to water and to light being obtained.

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