| 摘要 |
NEW MATERIAL:The compound of formula I (M is H or alkali metal; R<1> is H, Cl, etc.; R<2> is lower alkyl, sulfonic acid group, etc.; R<3> is H, lower alkyl, etc.; R<4> and R<5> are H, methyl, etc.; Z is Cl, F, etc.; m is 1-3; the benzene ring A and B may be naphthalene ring). EXAMPLE:The compound of formula II. USE:Dye for cellulosic fiber. Dyeing of cellulosic fiber can be carried out under the pH and dyeing condition for the dyeing of a polyester fiber with a disperse dye. PREPARATION:The compound of formula III (e.g. 2-naphthylamine-4,8-disulfonic acid, etc.) and formula IV (e.g. 1-aminobenzene-2-sulfonic acid) are diazotized and coupled, and the resultant monoazo compound is coupled with a diazo compound obtained by the diazotization of a compound prepared by the bonding of the compounds of formula V, VI and VII.
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