C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/156
C09B 31/00 (2006.01) C09B 33/00 (2006.01) C09B 35/00 (2006.01) C09B 45/00 (2006.01) C09B 62/006 (2006.01)
Patent
CA 1049507
NEW POLYAZO DYESTUFFS, THEIR PRODUCTION AND THEIR USE Abstract of the Disclosure Process for the production of polyazo dyestuffs of the formula Image wherein coupling components of the formulae K1H and K2H are coupled with tetrazo compounds from diamines of the formula Image and obtained diazo intermediate products or coupling end products further coupled with coupling components or with diazo components of the aromatic or heterocyclic series, wherein -X- = -N= or -NO=; I = a benzene, naphthalene, pyridine or pyrimidine ring of which the nitrogen atoms are in the 4- or 6-position with respect to the triazole nucleus, J = the atoms necessary to form a 5 or 6-membered aromatic or heterocyclic ring optionally containing an aromatic or alicyclic ring bound by condensation, K1 and K2 = radicals of coupling components of the aromatic or heterocyclic series, or of azo dyestuffs having at least one position capable of coupling, whereby they can be identical or different, and whereby I and J are unsubstituted, or substituted with water- solubilising groups and alkyl, hydroxy, alkoxy, aryloxy, alkanoyl, aroyl, alkyl or arylsulphonyl, alkanoylamino, unsubstituted or N-substituted carbamoyl or sulphamoyl, alkoxycarbonyl, alkoxy- sulphonyl, nitro, cyano or trifluoromethyl groups, and all above mentioned alkyl, alkoxy or alkanoyl groups contain 1 to 4 carbon atoms, Ra and Ra' = a radical of the aromatic or heterocyclic series, m = 1, 2 or 3 and p = 1, 2, whereby m + p is less than 5.
173412
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