ES254665A1 - A procedure for the preparation of monoazoic colorants insoluble in water (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of monoazoic colorants insoluble in water (Machine-translation by Google Translate, not legally binding)
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Hoechst AG
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Hoechst AG
Farbwerke Hoechst AG
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Priority to ES0254665ApriorityCriticalpatent/ES254665A1/en
Publication of ES254665A1publicationCriticalpatent/ES254665A1/en
A process for the preparation of water-insoluble monoazo dyes, characterized in that the amine diazoates corresponding to the formula ** (See formula) ** wherein the phenyl nucleus a can carry as substituents, alcoholic or alkoxylic radicals or halogen atoms, are coupled with arylides of acetylacetic acid which correspond to the formula ** (See formula) ** wherein it can designate an alkoxylic group and, in this case, Y represents a halogen atom and Z an alkoxy or alkoxy group or else Y denotes an alcohol group and Z a halogen atom, or wherein X denotes a alcohol group and then Y represents a halogen atom and Z an alkoxy group. (Machine-translation by Google Translate, not legally binding)
ES0254665A1959-12-311959-12-31A procedure for the preparation of monoazoic colorants insoluble in water (Machine-translation by Google Translate, not legally binding)
ExpiredES254665A1
(en)
Procedimine for the obtaining of derivatives of the acid p- [cumarinyl- (3)] - phenyl carbamine (Machine-translation by Google Translate, not legally binding)