NAPHTHOL DERIVATIVES, METHOD FOR THEIR PREPARATION AND USE THEREFOR

The invention relates to naphthol derivatives of the general formula I in which R , R and R are identical or different and each represents hydrogen or an alkyl or alkoxy group, where at least one of the radicals is a (C8-C30)-alkyl or alkoxy radical, R denotes hydrogen or an alkyl group, R den...

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Bibliographische Detailangaben
Hauptverfasser:	RITTERSDORF, WALTER NAT, VOGEL, PETER NAT, GUETHLEIN, WERNER NAT, THYM, DETLEF NAT
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES CHEMISTRY DYES HETEROCYCLIC COMPOUNDS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LAKES MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PHYSICS POLISHES TESTING
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Beschreibung
Zusammenfassung:	The invention relates to naphthol derivatives of the general formula I in which R , R and R are identical or different and each represents hydrogen or an alkyl or alkoxy group, where at least one of the radicals is a (C8-C30)-alkyl or alkoxy radical, R denotes hydrogen or an alkyl group, R denotes a nitro group, an alkyl group substituted by halogen, a cyano group, a sulphonamide group or an alkylsulphonyl group, X denotes nitrogen or the radical CR and Y denotes sulphur or the radical CR = CR , in which R , R and R are identical or different and each denotes hydrogen, halogen, a nitro group, a cyano group, an alkyl or haloalkyl group or an alkylsulphonyl group, a method for their preparation and their use as a pH indicator or in methods and compositions for determining an ion in an aqueous liquid.