Mono- and di-sulfo group containing compound having a substituted pyrazolyl diazo component radical and their use

摘要

Monoazo compounds of formula wherein R1 is a coupling component radical, R1 is C1-6alkyl; C1-6alkyl substituted by 1 or 2 substituents selected from chloro, cyano, hydroxy, C1-4alkoxy, phenyl and phenyl substituted by 1 or 2 substituents selected from chloro, C1-4alkyl, C1-4alkoxy, carboxy, sulfo, sulfamoyl and acetamido; C5-7cycloalkyl; C5-7cycloalkyl substituted by 1 to 3 C1-4alkyl groups; phenyl; phenyl substituted by 1 to 3 substituents selected from chloro, C1-4alkyl, C1-4alkoxy, acetamido (maximum of 1), carboxy (maximum of 1), sulfo (maximum of 1) and -SO2NR7R8 (maximum of 1); 1- or 2-naphthyl or 1- or 2-naphthyl substituted by sulfo, wherein each of R7 and R8 is independently hydrogen; C1-4alkyl; C1-4alkyl monosubstituted by hydroxy or phenyl; cyclohexyl; phenyl or phenyl monosubstituted by chloro, methyl or methoxy, or -NR7R8 is a 5- or 6-membered saturated or unsaturated ring containing 1 or 2 hetero atoms, R2 is hydrogen; C1-4alkyl; C1-4alkyl monosubstituted by hydroxy, chloro, cyano, C1-4alkoxy, phenyl or phenyl substituted by 1 or 2 substituents selected from chloro, methyl, methoxy, sulfo and sulfamoyl; C1-4alkoxy; cyano; phenyl; phenoxy; or phenyl or phenoxy monosubstituted by chloro, methyl, methoxy or sulfo, and R3 is cyano, carbamoyl, -COOR4, sulfo or -CO2NR5R6, wherein R4 is hydrogen, C1-4alkyl, phenyl or phenyl(C1-4alkyl), and each of R5 and R6 is independently hydrogen; C1-4alkyl; C1-4alkyl monosubstituted by hydroxy or phenyl; cyclohexyl; phenyl or phenyl monosubstituted by chloro, methyl or methoxy, or -NR5R6 is a 5- or 6-membered saturated or unsaturated ring containing 1 or 2 hetero atoms, with the provisos that (i) the total number of sulfo groups is 1 or 2 and (ii) R1, R2 or R3 must contain a sulfo group when K1 is a coupling component radical of the aminobenzene series the amino group of which is substituted by an alkylene radical having a terminal sulfo or sulfato group, by a bridge member-containing alkylene radical having a terminal sulfo or sulfato group or by a phenylalkyl group the phenyl group of which has a sulfo substituent, are useful for dyeing or printing anionically dyeable substrates such as natural or synthetic polyamides, especially nylon carpet.