Verfahren zur Herstellung von als optische Aufheller verwendbaren Azolverbindungen

Verfahren zur Herstellung von als optische Aufheller verwendbaren Azolverbindungen

The invention comprises compounds of the formula and the production of compounds of the formula where R is a 4,41-stilbene radical, A is an o-phenylene radical and X is 0 or 5, by heating HOOC-R-COOH with HX-A-NH2.(HCl)m (where m is 0 or 1) and a halogenating agent capable of converting COOH to ac...

Ausführliche Beschreibung

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1. Verfasser: SIGMUND BLOOM,MELVIN
Format: Patent
Sprache:ger
Schlagworte:
BLEACHING LEATHER OR FURS
CHEMISTRY
DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
HETEROCYCLIC COMPOUNDS
LAUNDERING
METALLURGY
ORGANIC CHEMISTRY
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:The invention comprises compounds of the formula and the production of compounds of the formula where R is a 4,41-stilbene radical, A is an o-phenylene radical and X is 0 or 5, by heating HOOC-R-COOH with HX-A-NH2.(HCl)m (where m is 0 or 1) and a halogenating agent capable of converting COOH to acid halide, e.g. POCl3, to form an intermediate condensation product, and then refluxing to form the product. A solvent may be used, e.g. 1,2,4-trichlorobenzene. Both R and/or A may be substituted; many possible substituents are given. In examples, X is 0 or S and R and A are unsubstituted; and X is 0, R is unsubstituted, and A is phenyl-substituted. The products may be mixed with soaps or detergents for increasing fabric brightness or whiteness.