Reactive dye compounds

A reactive dye compound having the formula (I) below:

• 49
• wherein
• D is a chromophore;
• L is a linking moiety, preferably selected from the group consisting of —NR—, —C(O)NR—, —NRSO2—, —(CH2)k— and —SO2—(CH2)k— wherein R is H or C1-C4 alkyl which can be substituted by halogen, preferably fluorine or chlorine, hydroxyl, cyano, C1-C4 alkoxy, C2-C5 alkoxycarbonyl, carboxyl, sulfamoyl, sulfo or sulfato and wherein k is an integer with a value between 1 and 4:
• Z is any moiety forming at least three covalent bonds with other moieties, preferably selected from the group consisting of nitrogen (N),
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• and aromatic compounds, more preferably from the group consisting of aromatic compounds activated by electron withdrawing groups and N-heterocycles, even more preferably from the group consisting of triazine, pyrimidine, quinoxaline, pyrimidinone, phthalazine, pyridazone, pyrazine and
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• still more preferably from the group consisting of triazine, pyrimidine, and quinoxaline, still even more preferably from triazine;
• Y is any leaving group, preferably selected from the group consisting of —Cl, —Br, —F, —I, —SO3H, —OSO3H, —SSO3H, —O—C6H4—SO3H, —OCO—CH3, —OPO3H2, —OCO—C6H5, —OSO2—C1-C4 alkyl, —OSO2—N(C1-C4 alkyl)2,
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• and quaternized nitrogen derivatives, more preferably selected from the group consisting of —Cl, —Br, —F and —OSO3H, even more preferably from the group consisting of —F and —Cl when Y is bonded to an N-containing heterocycle and —Br when Y is bonded to
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• G1 is selected from the group consisting of Y and —B-G2;
• G2 is selected from the group consisting of
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• B is a bridging moiety selected from the group consisting of
• —S—
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• and
• —S—CR′2—CR′2—
• wherein R′ is selected from the group consisting of H, C1-C10 alkyl group, C1-C10 carboxylic acid and sulphonate, preferably H;
• and
• wherein R″ is selected from the group consisting of H, C1-C4 alkyl group and
• —CR′2—CR′2—S-G2.
• B preferably being —NH—CH2—CH2—S— or —NH —CHCOOH—CH2—S—;
• wherein there is more than one D, R, R′, R″, L, Z, Y, G1, G2 or B these are not necessarily the same;
• and
• wherein the reactive dye compound comprises at least one group G2;
• and salts and esters thereof.