NEW MATERIAL:A compound of formula I [X is halogen; Y is -SO2CH=CH2, or -SO2CH2CH2Z (Z is group capable of being eliminated by alkali); A is (substituted)phenylene, or naphthylene; B is (substituted)phenyl or naphthyl; R1 is (substituted) lower alkyl; R2 is H, or (substituted) lower alkyl; R3 is H, methyl, or sulfo; R4 is methyl, carboxy, or methoxycarbonyl; R5 is OH or amino] and its salt.
EXAMPLE: A compound of formula II.
USE: Dye for dyeing esp. cellulose fibrous material yellow with high humidity and light resistance and high sweat resistance under sunlight.
PREPARATION: For example, an aromatic amine of formula B-NH2 is diazotized followed by coupling with a pyrazolone derivative of formula III to prepare a monoazo compound of formula IV. This compound and another compound of formula V is then subjected to condensation, in an aqueous medium, primarily at -10W40°C and a pH2W9 and secondarily at 20W70°C and a pH2W9, with a trihalogenotriazine of formula VI.
KAYANE YUTAKA
OOTAKE KATSUMASA
TAKESHITA AKIRA
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