New reactive carbazole azo dyestuff cpds. with epoxy-propyl substit. - on nitrogen atom, used for dyeing natural and synthetic fibre, esp. wool, polyamide or polyester, PVC and epoxide resin

New reactive carbazole azo dyestuff cpds. with epoxy-propyl substit. - on nitrogen atom, used for dyeing natural and synthetic fibre, esp. wool, polyamide or polyester, PVC and epoxide resin

New carbazole azo dyestuffs (I) are substd. by a 2,3-epoxypropyl gp. in the 9-position. (I) are prepd. by (a) reacting carbazole (II) with epichlorohydrin (III) in alkaline medium in the presence of a quat. ammonium salt, pref. triethylbenzylammonium chloride (IV) as catalyst at 0 to 65 deg.C, givin...

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Bibliographische Detailangaben
Hauptverfasser: POLACZEK, JERZY, WARSCHAU/WARSZAWA, PL, PIELICHOWSKI, JAN, KRAKAU/KRAKOW, PL, CHRZASZCZ, RYSZARD, KRAKAU/KRAKOW, PL, GALKA, SLAWOMIR, WARSCHAU/WARSZAWA, PL
Format: Patent
Sprache:eng ; ger
Schlagworte:
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
HETEROCYCLIC COMPOUNDS
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC CHEMISTRY
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:New carbazole azo dyestuffs (I) are substd. by a 2,3-epoxypropyl gp. in the 9-position. (I) are prepd. by (a) reacting carbazole (II) with epichlorohydrin (III) in alkaline medium in the presence of a quat. ammonium salt, pref. triethylbenzylammonium chloride (IV) as catalyst at 0 to 65 deg.C, giving 9-(2,3--epoxypropyl)-carbazole (V); and (b) coupling (V) with a substd. aryldiazonium ion in a mixt. contg. an organic solvent (pref. an ether, esp. THF), water and a strong acid at -5 to 10 deg.C. USE/ADVANTAGE - (I) are used for dyeing natural and synthetic fibres, esp. wool, polyamide and polyester fibres, PVC and epoxide resins (claimed). They are reactive, have good coloristic properties and give fast dyeing.