Basf Aktiengesellschaft

Claus Marschner

Manfred Patsch

Klaus Pandl

Bernd Siegel

Joerg L Jessen

Claus-Ulrich Priester

Knut Kessel

Matthias Dust

Matthias Niedenbrueck

Uwe Nahr

Friedrich Wirsing

Hermann Loffler

Aromatic sulphonyl compounds having an additional thioether, sulphoxide

Reactive dyes of the formula I ##STR1## where a is 1 or 2,

Reactive dyes with a benzo-fused heterocycle as anchor

Hydroxyphenylureas

Fiber-reactive formazan dyes are prepared by diazotizing a protectively formylated hydroxyphenylenediamine, coupling with a hydrazone compound, metallizing, eliminating the protective group, and reacting with a halotriazine and optionally thereafter with an amine or a hydroxy compound via novel aminophenol intermediates.

Formylamino-aminophenol compounds and their use in preparation of

Chloroethylsulfonylbenzaldehydes of the formula ##STR1## where n is 1 or 2 and the ring A may be substituted with halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkysulfonyl, nitro or hydroxysulfonyl, are prepared.

Chloroethylsulfonylbenzaldehydes

There are described formazan dyes of the formula ##STR1## where m and n are each 1 or 2,

Aminophenols useful as intermediates for formazan reactive dyes

Formazan-based reactive dyes with at least two reactive groups, and

Method of preparing fiber-reactive formazan dyes involving hydrolysis of

There are described formazan dyes of the formula ##STR1## where n is 1 or 2,

Reactive formazan dyes and hydrazones

Reactive dyes useful for dyeing or printing hydroxyl- or nitrogen-containing substrates have the formula ##STR1## where U is vinyl, propenyl or the radical of the formula ##STR2## in which Z.sup.1 is hydrogen or methyl and Z.sup.2 is a group which is detachable under alkaline reaction conditions,

Reactive dyes with a reactive system based on alkenylsulfonyl and benzyl

Reactive dyes useful for dyeing or printing hydroxyl- or nitrogen-containing substrates have the formula ##STR1## where Rg is a radical of the formula ##STR2## Ar is the radical of a benzene or naphthalene ring, Z.sup.1 and Z.sup.2 are each hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, substituted or unsubstituted phenyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, cyano, halogen or hydroxysulfonyl,

Reactive dyes having an allylsulfonyl or propargylesulfonyl group

Sulfonyl compounds of the formula ##STR1## where Ar is the radical of a benzene or naphthalene ring,

Arylsulfonyl compounds with unsaturated radicals

Double attachment reactive dyes have the formula ##STR1## where U.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl, C.sub.2 -C.sub.10 -alkenyl or the radical ##STR2## where Q.sup.1 and Q.sup.2 are each independently of the other hydrogen or C.sub.1 -C.sub.4 -alkyl and Q.sup.3 is a group which is detachable under alkaline reaction conditions,

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Claus Marschner