| abstract |
IN WHICH R is phenyl or lower alkyl, B2 is lower alkanoyl, benzoyl-, or thiobenzoyl, n is the number 2 or 3 and m the number 1 or 2, which comprises condensing in the presence of an acid binding agent and an addition compound of copper-I-iodide and a pyridine base as catalyst a chloro- or bromoanthraquinone having as optional substituents in the anthraquinone radical benzoylamino-, methoxy or acetyl groups, with the amides of benzoic acid, thiobenzoic acid, or with melamine, 2-lower alkyl or 2-phenyl-2,6-diamino-1,3,5-triazine or 2,4-diamino quinazoline. Process for the manufacture of anthraquinone dyestuffs of the formulae (A-NH)n-B1 or A-(NHB2)m IN WHICH A is unsubstituted anthraquinonyl or anthraquinonyl substituted by acylamino-, methoxy or acetyl groups, B1 is a radical of the formulae |