Yellow anionic disazo dyes

A compound of formula (14) or (16)

• wherein
• R1 represents hydrogen, C1-C4alkyl, C1-C4alkoxy or SO3H,
• R2 represents SO3H or CO2H,
• R3 represents hydrogen, C1-C4alkyl, halogen, hydroxy, C1-C4alkoxy, carboxy, NH2 or NHC1-C4alkyl,
• R3a represents hydrogen or NH2 and
• A1 and A2 are independently selected from the group consisting of
• an acetoacetylated amine of formula (2)
• wherein
• X1 represents C1-C4alkyl, or phenyl which is unsubstituted or monosubstituted by C1-C4alkyl, C1-C4alkoxy or halogen and
• X2 represents phenyl which is unsubstituted, mono-, di- or trisubstituted by one or two SO3H, SO2NHC1-C4 alkyl groups which alkyl groups may be substituted,
• SO2C1-C4alkyl, C1-C4substituted or unsubstituted alkyl, hydroxy, C1-C4alkoxy, halogen, CF3, NH2, NHCOC1-C4alkyl, NHCOOC1-C4alkyl, NHCONHC1-C4alkyl, CO2H, CONHC1-C4alkyl or NO2;
• a 1- or 2-naphthyl residue which is unsubstituted or substituted by one or two SO3H, SO2NHC1-C4alkyl, carboxy, CONHC1-C4alkyl, carboxyC1-C4alkyl or carboxyaryl groups or
• a 5- or 6-membered heterocyclic ring containing 1-3 heteroatoms and which may be benzannelated and be further substituted by C1-C4alkyl, C1-C4alkoxy or halogen and which may be attached to the NH-atom in formula (2) either via the hetero- or benzo-nucleus, in the case of benzannelated heterocycles;
• a derivative of barbituric acid of formula (3)
• wherein
• Y represents O, NCN or NCONH2;
• a 2,4,6-triaminopyrimidine;
• a pyridone derivative of formula (4)
• wherein
• Q1 represents hydrogen, hydroxy, C1-C2alkyl, hydroxyethyl, 2-(C1-C2alkoxy)alkyl, C1-C2alkoxy, COOH, CONH2 or COOC1-C2alkyl,
• Q2 represents hydrogen, CN, CONH2, halogen, SO3H or C1-C2alkyl which is unsubstituted or substituted by hydroxy, phenyl or SO3H,
• Q3 represents hydrogen, phenyl, C1-C2alkylphenyl, cyclohexyl or C1-C4alkyl which is unsubstituted or substituted by hydroxy, CN, C1-C2alkoxy or SO3H and
• Q4 represents hydrogen or hydroxy;
• an aminopyrazole or a pyrazolone derivative of formula (6), (7) or (8)
• wherein
• R4 represents hydrogen, substituted or unsubstituted C1-C4alkyl, C2-C4alkenyl, NHCOC1-C4alkyl, or CO2H, each
• R5 and R6, independently of the other, represent hydrogen, halogen, C1-C4alkyl, SO3H, or CO2H and
• R7 represents hydrogen or C1-C4alkyl;
• a benzoic acid derivative of formula (9) or (10)
• wherein
• R7 represents hydrogen or C1-C4alkyl and
• R8 represents hydrogen or hydroxy;
• and
• a phenol residue of formula (11) or (12)
• wherein
• R9 and R10, each one independently of the other, represent hydrogen, C1-C4alkyl, C1-C4alkoxy, hydroxy, halogen, NH2, NHCO C1-C4alkyl, NO2, SO3H, CO2C1-C4alkyl or CONHC1-C4alkyl groups,
• provided that
• in compounds of formula (14)
• if R2 represents CO2H, R3 represents hydroxy or methoxy, and R3a represents hydrogen, then A1 and A2 do not represent residues of formulae (2) or (7);
• and
• in compounds of formula (16)
• if R2 represents SO3H and R3 and R3a both represent hydrogen, then A1 and A2 are not both 2,4-dihydroxyphenyl.