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Dyestuffs comprising two 5-membered heterocyclic nuclei fused to a central cyclohexadiene nucleus, processes for their preparation and their use for colouring synthetic textile materials
Dyestuffs comprising two 5-membered heterocyclic nuclei fused to a central cyclohexadiene nucleus, processes for their preparation and their use for colouring synthetic textile materials
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机译:包含两个与中心环己二烯核稠合的5元杂环核的染料,其制备方法及其在合成纺织材料上色的用途
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摘要
Dyestuffs of the general formula:wherein Z' and Z2 are oxygen, sulphur or -NY' in which Y' is an optionally substituted hydrocarbon radical or an acyl radical;R3 and R4 each respresent a naphthyl radical or an optionally substituted phenyl radical;X3 and X4 each independently represent a hydrogen atom, chlorine, bromine, cyano, lower alkyl, lower alkoxy, optionally substituted aryl, optionally substituted carbamoyl, optionally substituted sulphamoyl, carboxylic acid or carboxylic acid ester group,;provided that Z' and Z2 may be the same or different when R3 and R4 are different, and Z' and Z2 are different when R3 and R4 are the same.;These dyestuffs are prepared by various processes and are useful in colouring synthetic textile materials.
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