Hoechst Aktiengesellschaft

Hoechstaktiengesellschaft

Erich Schinzel

Gunter Rosch

Thomas Martini

Wilfried Sahm

Hans Frischkorn

Dieter Gunther

Ulrich Pintschovius

Norbert Schonberger

Rudiger Erckel

Gunter Prossel

Heinz Probst

Helmut Mengler

Hans J Nestler

Emmerich Paszthory

Herbert Friedrich

Otto Smerz

Manfred Pelster

Anton Horn

New optical brighteners of the general formula ##STR1## in which R denotes hydrogen, alkyl, alkoxyalkyl, cyclohexyl, methylcyclohexyl, benzyl, phenylethyl, phenyl, alkylphenyl or xylyl,

Naphthalimides containing sulfuric acid ester groups, a process for

Compounds of the general formula ##STR1## in which n denotes 1 or 2,

Bisbenzoxazolylnaphthalenes containing sulfonate or sulfonamide groups,

The process for the preparation of 2,4-di-(C.sub.1 -C.sub.4)-alkoxy-1,3,5-triazinyl-6-pyrenes by reacting 2,4-dichloro-1,3,5-triazinyl-6-pyrene with alkali metal (C.sub.1 -C.sub.4)-alcoholates is carried out in a mixture of a lower alkanol and an aprotic, dipolar organic solvent. The product, which is of importance as an optical brightener, is obtained in an improved state of purity as a result of using this mixture of solvents, and higher degrees of whiteness are obtained thereby.

Process for the preparation of dialkoxytriazinylpyrenes

Cationic compounds of the formula (1) ##STR1## in which R denotes alkyl, hydroxyalkyl, alkoxyalkyl, phenylalkyl, or phenoxyalkyl,

Cationic compounds of the naphthalimide series, process for their

Perfluoroalkyl esters of anthranilic acids, of the formula (1) ##STR1## in which R.sub.1 is perfluoroalkyl or perfluoroalkoxy-perfluoroalkyl, R.sub.2 is hydrogen, alkyl or phenyl, R.sub.3 is one or more non-chromophoric radicals, such as fluorine, chlorine, bromine, lower alkyl, lower alkoxy, acylamino, carboxyl or functionally modified carboxyl groups, sulfo or functionally modified sulfo groups, or phenyl, X is the radical of an aliphatic or aromatic monocarboxylic or polycarboxylic acid, the radical of a halogen-active heterocyclic compound or an alkylaminocarbonyl or arylaminocarbonyl radical, m is an integer from 1 to 6, preferably 1 to 4 and n is an integer from 1 to 3. These compounds are useful for soil-repellent finishing of textile material.

Perfluoroalkyl esters of anthranilic acids

Perfluoroalkyl esters of the formula ##STR1## wherein R.sub.1 denotes C.sub.2 -C.sub.20, preferably C.sub.4 -C.sub.14 -perfluoroalkyl or perfluoroalkoxyperfluoroalkyl, R.sub.2 denotes C.sub.3 -C.sub.4 -alkylene, R.sub.3 denotes C.sub.2 -C.sub.5 -.omega.-epoxyalkyl or C.sub.1 -C.sub.18, preferably C.sub.1 -C.sub.5 -alkyl, which can be substituted by 1 or 2 halogen atoms, preferably chlorine atoms, by hydroxyl groups, by a group of the formula ##STR2## by 1 to 3 groups of the formula --OCO--CX.dbd.CY--COO--(CH.sub.2).sub.m --R.sub.1 or by, in each case, one lower alkoxy, epoxy, lower acyloxy, lower alkoxycarbonyl, lower acylamino, lower hydroxylalkylthio, lower trialkylamino, lower trialkylammonium, phenyl, phenoxy or furanyl group or R.sub.3, in the case where b=0, also denotes C.sub.3 -C.sub.18 -alkenyl, which can be subsituted by hydroxyl groups or a phenyl group; C.sub.3 -C.sub.8 -alkynyl, which can be substituted by hydroxyl groups; cyclohexyl; phenyl, which can be substituted by 1-3 C.sub.1 -C.sub.8 -alkyl groups or by phenyl, or naphthyl, R.sub.4 denotes hydrogen or methyl, R.sub.5 denotes hydrogen or C.sub.1 -C.sub.4 -alkyl, X and Y denote hydrogen, halogen or C.sub.1 -C.sub.6 -alkyl, a denotes a number from 1 to 10, b denotes 0 or 1 and m denotes a number from 1 to 6, preferably 1 to 4, a process for their preparation and their use for providing oil and water-repellant finishing of textile material.

Perfluoroalkyl esters, a process for their preparation and their use as

Mixtures of optical brighteners consisting of 1 to 60% by weight of a brightener from the bisbenzoxazolylnaphthalene series and 99 to 40% by weight of one or more brighteners of the formulae 2 to 10 listed in the description.

Mixtures of optical brighteners and their use

Mixtures of optical brighteners composed of

Mixtures of optical brighteners

Process for the preparation of naphthalene-1,4-dicarboxylic acid, wherein 4-bromo-1-naphthoic acid is reacted with at least 1 mole of copper-(I) cyanide per mole of 4-bromonaphthoic acid in a polar, aprotic solvent, and the copper salt complex of 4-cyanonaphthoic acid thus obtained is saponified in an alkaline medium.

Process for the preparation of naphthalene-1,4-dicarboxylic acid

A process for the preparation of naphthalene-1,4-dicarboxylic acid, which comprises reacting 1,4-dihalogenonaphthalene with at least 2 moles of copper-I cyanide per mole of dihalogenonaphthalene in a polar, aprotic solvent and subjecting the copper salt complex of 1,4-dicyanonaphthalene thus obtained to alkaline hydrolysis.

Process for the manufacture of optically brightening bis-benzofuranyl compounds by cyclization of compounds of the formula ##STR1## in aprotic solvents and in the presence of alkali metal or alkaline earth metal carbonates.

Process for the manufacture of bis-benzo-furanyl compounds

Compounds of the general formula (1) ##STR1## wherein R.sub.1 denotes hydrogen, halogen, alkyl, alkoxy or, conjointly with R.sub.2, a fused benzo ring, R.sub.2 denotes hydrogen, alkyl, alkoxy, halogen, phenyl, cyano, carboalkoxy, carboxyl, carbonamido, monoalkylcarbonamido, dialkylcarbonamido, sulfo, alkylsulfonyl, alkyloxysulfonyl, sulfonamido, monoalkylsulfonamido or dialkylsulfonamido or, conjointly with R.sub.3, a fused benzo ring, R.sub.3 has the same meaning as R.sub.2, R.sub.4 denotes hydrogen, alkyl, alkoxy, halogen or, conjointly with R.sub.3, a fused benzo ring, R.sub.5 denotes alkyl, hydroxyalkyl, alkoxyalkyl, optionally substituted aralkyl, cyanoethyl, cycloalkyl or a group of the formulae --CH.sub.2 CN, --CH.sub.2 CONH.sub.2 or --CH.sub.2 COO--alkyl, A denotes a group of the formulae ##STR2## or

Quaternized, bridged benzimidazolylbenzimidazoles, processes for their

Compounds of the general formula ##STR1## in which X represents a trifluoromethyl group or a fluorine atom, n is 1 or 2, Z is an oxygen atom or a NR grouping, in which R is hydrogen or an optionally substituted alkyl group, the benzo rings optionally containing further nonchromophoric substituents. These compounds may be prepared by reacting the dichloride of 1,4-naphthalene-dicarboxylic acid with 2 mols of an o-aminophenol or of an o-nitroaniline and by subsequently cyclizing the acylamino compound obtained. The products are suitable as optical brighteners.

Novel fluorine-containing benz-azole derivatives, process for their

Novel 1,3,4-oxadiazolone-(2) compounds of the formula ##STR1## wherein Y denotes carboxy optionally functionally modified or optionally substituted phenyl or a five-membered heterocycle optionally substituted and selected from the group consisting of: furan, thiophen, oxazole, imidazole, oxadiazole, oxadiazolone, triazole, benzofuran, thionaphthalene, benzoxazole, benzimidazole, and benzotriazole, R denotes hydrogen, alkyl or optionally substituted phenyl, n denotes 0 and 1 and the rings A and B carry optionally further non-chromophoric substituents. These compounds may be used as optical brighteners.

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Hofheim am Taunus, Germany

Erich Schinzel