| 摘要 |
1286045 Preparing cupriferous dyestuffs BADISCHE ANILIN- & SODA-FABRIK AG 9 Jan 1970 [11 Jan 1969] 1122/70 Heading C4P Cupriferous dyes of the azo and azomethine series are prepared by reacting a dye containing the grouping wherein Z is a nitrogen atom or a CH group, the ring carbon atoms may form part of a carbocyclic aromatic or heterocyclic aromatic ring structure which may be substituted, and P and Q are H, a substituent or part of a fused ring, with an oxidizing agent in presence of a copper salt at a pH above 7 to form copper complex dyes containing the grouping wherein Z, P and Q are as above. The preferred oxidizing agent is hydrogen peroxide and preferred starting dyes are prepared by (a) diazotizing an amine of the benzene or naphthalene series and coupling to a coupling component of the benzene, naphthalene or pyrazolene series or (b) condensing an aromatic amine of the benzene or naphthalene series with an aldehyde of the benzene, naphthalene or pyrazolone series. The dyes which give orange, red, blue, violet, scarlet and bordeaux shades in pyridine are used to dye cellulose leather and synthetic fibres. |
