| 摘要 |
The invention comprises reactive dyestuffs of the formula <FORM:0978721/C4-C5/1> wherein R represents an organic radical which contains at least one halogen atom capable of reacting with the substrate being one of the following types of radical, viz. a halogenalkanoyl or halogenalkenoyl radical with from 2 to 4 carbon atoms, a mono-, di-halogenopyrimidyl radical, the nucleus of which may be further substituted, a trihalogenopyrimidyl radical, a (2,4 - dihalogeno - 6 - methylpyrimidyl - 5) - methyl radical, a (2,4 - dihalogenopyrimidyl-5)-methyl radical, a 4,6-dihalogeno - 1,3,5 - triazinyl - 2 - radical or a 4 - halogeno - 1,3,5 - triazinyl - 2 - radical bearing in the 6-position a hydroxy, thiol or amino which may be substituted by one or (in the case of amino) two hydrocarbon radicals, the hydrocarbon radical (or each hydrocarbon radical) being itself optionally substituted by halogen, hydroxy, alkyl or alkoxy with 1 to 5 carbon atoms, carboxy or sulpho, B the radical of a coupling component which couples in ortho position to a phenolic or enolic hydroxy group, one X -SO3H, the other X hydrogen or -SO3 and Y hydrogen or the hydroxy group; and the metal complex compounds of the dyestuffs of the above formula in which Y represents a hydroxy group. The dyes are prepared by coupling appropriate naphthylamines in which the desired reactive group is present with appropriate coupling components and if desired, treating the products with an oxidizing agent in the presence of a copper-yielding agent, de-coppering and converting the products to e.g. a chromium, cobalt or nickel complexes or by introducing the radical R into appropriate aminoazo dyes. Among the many coupling components specified in the examples are 1-phenyl - 3 - methyl - 5 - pyrazolone - 21,51-disulphonic acid, 1-hydroxy-8-chloracetylaminonaphthalene - 3,6 - disulphonic acid, 2-hydroxynaphthalene - 3 - carboxylic acid-phenylamide - 31 - sulphonic acid, 2 - propionylamino - 8 - hydroxy - naphthalene - 6-sulphonic acid and 1-hydroxy-naphthalene-3,6,8-trisulphonic acid. The dyes are suitable for fibres of animal origin, e.g. wool and silk, synthetic polyamide fibres, e.g. nylon, leather, natural and regenerated cellulosic fibres and blends of such fibres. Specifications 660,447 and 721,495 are referred to.
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