Anthraquinone Dyestuffs and the Printing and Dyeing therewith of Synthetic Fibre Materials

摘要

1,164,404. Anthraquinone dyestuffs. FARBENFABRIKEN BAYER A.G. 5 June, 1968 [29 June, 1967], No. 26715/68. Heading C4P. The invention comprises compounds of the formula where R and RSP1/SP are hydrogen, chlorine or fluorine, RSP11/SP is hydrogen or an alkyl group of 1-4 carbon atoms, A is a straight-chain or branched alkylene group with 2-6 carbon atoms, which may be interrupted by one or more oxygen and/or sulphur atom and n is 1-3. The compounds may be prepared by reacting together compounds of the formulµ in the presence of basic agents such as sodium or potassium carbonate or hydroxide at 100- 150‹ C.