Azo dyestuffs containing 6-fluoro-pyrimidinyl 4-reactive group
AssigneeBayer Aktiengesellschaft
InventorsHans-Samuel Bien, Erich Klauke
Life of this patent
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Abstract
Reactive dyestuffs of the formula ##STR1## in which D is the radical of an organic dyestuff, e.g. an azo dyestuff; R is hydrogen or lower alkyl; O is a bridge member, e.g. --SO.sub.2 --; n is the number 0 or 1; R.sub.1 is hydrogen or a substituent; R.sub.2 is hydrogen, optionaly substituted alkyl, alkenyl, aralkyl or aryl; and F is fluoro; are disclosed. These dyestuffs are suitable for dyeing textile materials containing hydroxyl groups or nitrogen, e.g. cellulose and wool. The dyeings have excellent fastness properties especially wet processing fastness.
Claims10
A reactive dyestuff of the formula ##STR102## wherein D is the radical of an azo dyestuff;
- Q' is linked to a benzene or naphthalene ring of D and is a direct linkage or a linking radical selected from the group consisting of --SO.sub.2 --, --NHCO--, ##STR103## m is 0 to 2;
- p is 0 or 1;
- q is 1 or 2;
- R is hydrogen or lower alkyl;
- R.sub.1 is hydrogen, Cl;
- Br;
- F;
- methyl;
- ethyl;
- mono-, di- or trichloromethyl, tribromomethyl or trifluromethyl;
- vinyl;
- allyl;
- nitro;
- cyano;
- carboxyl;
- sulfonic acid;
- methylsulfonyl;
- or phenylsulfonyl;
- R.sub.2 is hydrogen;
- methyl;
- ethyl;
- vinyl;
- allyl;
- mono-, di- or trichloromethyl, trifluoromethyl, or tribromomethyl;
- or phenyl;
- and F is fluoro.
Dependencies are inferred from the claim text.