Naphtholactam dyestuffs

Details Naphtholactam dyestuffs Naphtholactam dyestuffs

1977-05-10

1981-01-20

Coughlan, Jr., Paul M.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

2603265B, 544319, 548181, 548301, 548324, 548361, C09B 5706

Patent

active

042464102

ABSTRACT:
A naphtholactam dyestuff of the general formula (I) ##STR1## in which R represents alkyl, alkenyl, cycloalkyl, aralkyl, aryl or, preferably, hydrogen, M represents hydrogen or a cation, X represents .dbd.O, .dbd.NH or .dbd.NR', Y represents a free or modified carboxyl group, Z represents a non-ionic substituent, n represents 0, 1 or 2, B represents a group which completes ring A to give a heterocyclic structure, R' represents alkyl, alkenyl, cycloalkyl, aralkyl, aryl, or, preferably, hydrogen and E and F can carry further non-ionic substituents.
The new dyestuffs give brilliant yellow and red shades on polyester fibres.

REFERENCES:
patent: 3991054 (1976-11-01), Bock et al.
patent: 4009165 (1977-02-01), Schefczik

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