Water-insoluble azolystyryl optical brighteners

Details Water-insoluble azolystyryl optical brighteners Water-insoluble azolystyryl optical brighteners

1983-01-14

1985-04-09

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544182, 544183, 544333, 548131, 548144, 548251, 548253, 548254, C07D45100, C07D21700, C07D21308, C07D25300

Patent

active

045103119

ABSTRACT:
The invention relates to compounds of the formula ##STR1## or isomeric mixtures thereof, wherein A represents a quasiaromatic heterocyclic radical,

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Journal of the American Chemical Society, vol. 80, 1958, Easton, W. G. Finnegan et al., "An Improved Synthesis of 5-Substituted Tetrazoles", pp. 3908-3911.

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