Doubled phenyl- or naphthyl-azobenzenes having a plurality of reactive groups and intermediates thereof
AssigneeBASF SE
InventorsBernd Siegel, Manfred Patsch
Life of this patent
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Abstract
The reactive dyes have the formula ##STR1## where n is 0 or 1, R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR2## L is a bridgemember, A is substituted or unsubstituted C.sub.2 -C.sub.8 -alkylene, Y is vinyl or a radical of the formula --CH.sub.2 --CH.sub.2 --Q, where Q is a group which is detachable under alkaline reaction conditions, and D is phenyl or naphthyl, which may each be substituted. The present dyes are useful in dyeing or printing hydroxyl- or nitrogen-containing fibres.
Claims3
A reactive dye of the formula I ##STR85## where n is 0 or 1,
- R.sup.1, R.sup.2 and R.sup.3 are identical or different and each is independently of the others hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl
- R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR86## L is a bridge member, A is C.sub.2 -C.sub.8 -alkylene which may be interrupted by from 1 to 3 oxygen atoms in ether function, imino groups or C.sub.1 -C.sub.4 -alkylimino groups,
- Y is vinyl or a radical of the formula --CH.sub.2 --CH.sub.2 --Q, where Q is a group which is detachable under alkaline reaction conditions, and
- D is phenyl or naphthyl, which may each be monosubstituted or polysubstituted by hydroxysulfonyl, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro or vinylsulfonyl.
Dependencies are inferred from the claim text.