COUMARIN COMPOUNDS, A PROCESS FOR THEIR PREPARATION, AND THEIR USE AS DYESTUFFS

摘要

of the disclosure: Coumarin compounds of the general formula (1) < IMG > (1) in which A denotes an oxygen atom or grouping ?N-R in which R represents a hydrogen atom or an alkyl radical of 1 to 18 carbon atoms which may be substituted by fluorine, chlorine or bromine atoms or by alkoxy< IMG >, dialkyl< IMG > amino, -SO2-N(alkylC1-C4)2 or cyano groups or a cycloaliphatic, aromatic or heterocyclic radical which may be substituted by fluorine, chlorine or bromine atoms or by alkyl< IMG >, alkoxy< IMG >, hydroxyl, cyano, sulfonamide or -SO2-N-(alkylC1-C4)2 groups, X denotes an oxygen atom or a grouping ? N-R' in which R' represents a hydrogen atom or an alkyl< IMG >carbonyl, alkoxy< IMG >carbonyl, alkyl< IMG >carbamoyl or alkyl< IMG >sufonyl group or an aryl, arylcarbonyl, arylcarbamoyl or arylsufonyl radical which may be substituted by fluorine, chlorine or bromine atoms or by alkyl or alkoxy groups of 1 to 4 carbon atoms each or by cyano groups, Y denotes a hydrogen atom or a cyano or an alkyl< IMG > carboxylate group, an aryl, arylsulfonyl or -CO-O-aryl radical which may be substituted by fluorine, chlorine or bromine atoms or by alkyl or alkoxy groups of 1 to 4 carbon atoms, or by nitro, methylenedioxy, amino, monoalkyl C1-C4 amino or dialhyl C1-C4 amino groups or by a benzoxazolyl radical, or a heterocyclic radical which may be quaternized and which may be substituted by fluorine, chlorine or bromine atoms or by alkyl or alkoxy groups of 1 to 4 carbon atoms, or by nitro, phenyl, alkylphenyl, alkoxy C1-C4 phenyl, cyano, methylenedioxy or alkyl C1-C4 carboxylate groups, and Z denotes a hydrogen atom or an alkyl C1-C4 carboxylate or cyano group, a process for their preparation, and their use for dyeing or printing synthetic fiber materials, in particular polyester fibers.