| 摘要 |
NEW MATERIAL:Monoazo compounds of formula I, wherein Z is -SO2CH2CH2A, -SO2CH2CH2A; A is a group which can be removed by an alkali; Y, Y' are each H, sulfo group; and salts thereof. USE:Dyes which dye or print fibrous materials, exhibit high build up and give dyed article having excellent fastness to chlorine, sunlight and perspiration and good stability against acids. PREPARATION:A compd of formula II in the free form is condensed with a compd. of formula III in the free form at 100-60 deg.C while adjusting the pH to 2-9, to obtain the monoazo compd. of formula I in the free form.
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