C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 62/51 (2006.01) D06P 1/384 (2006.01)
Patent
CA 2087954
Monoazo compounds, preparation thereof and use thereof as dyes Monoazo compounds which possess fiber-reactive groups and have useful dye properties and are capable of dye- ing hydroxyl- and/or carboxamido-containing materials, in par- ticular fiber materials, such as cellulose fibers and natural and synthetic polyamide, such as wool, in strong, fast shades. They conform to the formula Image (1) where Me is hydrogen or an alkali metal; K is a radical of the formula (2) Image (2) where Me has one of the abovementioned meanings, and n is zero or 1 (if zero, this group being hydrogen); D is a group of the formula (3a), (3b) or (3c) Image Image (3a) (3b) Image (3c) where Me has one of the abovementioned meanings, R1 is hydrogen, alkyl of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato-substituted, alkoxy of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato-substituted, chlorine, bromine, hydroxyl, cyano, carboxyl or sulfo, R2 is hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms, Y is vinyl or ethyl which contains in the .beta.-position a sub- stituent which is eliminable by alkali to form a vinyl group, and m is zero, 1 or 2 (if zero, this group being hydrogen).
Gleißner Rolf
Springer Hartmut
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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