Water-insoluble anthraquinone dyestuffs containing a halodiazinyl group which are soluble in aprotic solvents

New reactive dyestuffs free from acid, salt-forming, water-solubilizing groups, and having the formula wherein D represents the radical of an anthraquinone dyestuff, Q represents NX3, O, S or NX3CO wherein X3 represents hydrogen or lower alkyl, R represents diazinyl containing only chlorine, bromine or fluorine substituents, each of which can be split off as anion and which is bound to a ring carbon atom adjacent to a tertiary nitrogen atom, X1 represents hydrogen and X2 represents alkyl having from 8 to 18 carbon atoms, or X1 and X2 represents the same or different alkyl or alkoxyalkyl wherein X1 and X2 must together contain from 8 to 36 carbon atoms, or X1 represents cyclohexyl or cyclohexyl substituted by lower alkyl, and X2 represents alkyl of 1 to 18 carbon atoms, alkyl of 1 to 18 carbon atoms substituted by a member selected from the group consisting of hydroxyl, lower alkoxy, lower alkenyloxy and cyano, lower alkenyl, cyclohexyl or cyclohexyl substituted by lower alkyl, said dyestuffs being suitable for the dyeing and printing of hydrophobic organic fibre material, especially fibre material from synthetic polyamide, and being characterized by their good to excellent solubility in aprotic solvents or mixture of solvents.