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7405306 |
3-Heteroaryl-3,5-dihydro-4-oxo-4H-pyridazino[4,5-b]indole-1-acetamide derivatives, their preparation and their application in therapeutics
The invention discloses and claims therapeutic uses of compounds of general formula (I)
Wherein X, R 1 , R 2 and R 3 are as described herein. The invention further discloses processes for...
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7008759 |
Dyes and use thereof in imaging members and methods
There are described novel rhodamine dye compounds and imaging members and imaging methods, including thermal imaging members and imaging methods, utilizing the compounds. The dye compounds exhibit...
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6703401 |
Compounds, their preparation and use
The present invention relates to compounds of the general formula (I) The compounds are useful in the treatment and/or prevention of conditions mediated by clear receptors, in particular the...
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6355839 |
Alkylation of diphenylamine with polyisobutylene oligomers
A process for preparation of alkylated diphenylamine antioxidant which comprises alkylating diphenylamine with a polyisobutylene in the presence of a clay catalyst, wherein the polyisobutylene has...
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RE37555 |
Process and composition for multicomponent one hundred percent solid fabric softeners
The invention relates to a method of producing a mixture of a quaternary ammonium compound, fatty acid, fatty acid ester and tertiary amine salt in situ which is a highly functional mixture that is...
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6159966 |
Azolidinediones useful for the treatment of diabetes, dyslipidemia and hypertension: process for their preparation and pharmaceutical compositions containing them
A compound of formula (I) ##STR1## its tautomeric forms, its stereoisomers, its polymorphs, its pharmaceutically acceptable salts or its pharmaceutically acceptable solvates, wherein R 3 , R 4 , R...
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5917035 |
Oxazine dyes, their preparation and the use thereof
The compounds of formula ##STR1## wherein the substituents are as defined in the claims, are suitable for dyeing or printing, inter alia, polyacrylonitrile and acid-modified polyester fibers, and...
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5840980 |
Diamine compounds and electrophotographic photoreceptor
A diamine compound of the following formula (1): ##STR1## wherein R 1 is a hydrogen atom, a lower alkyl group or a lower alkoxy group, each of A 1 , A 2 and A 3 which are independent of one...
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5792389 |
Water soluble laser dyes
Novel water soluble dyes of the formula I are provided ##STR1## wherein R 1 and R 4 are alkyl of 1 to 4 carbon atoms or hydrogen; or R 1 -R 2 or R 2 -R 4 form part of aliphatic heterocyclic...
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5739318 |
Labelling agents comprising boronic acid conjugates
The present invention relates to labelling agents comprising non-proteinaceous boronic acid conjugates having absorption maxima at not less than 600 nm, said label being provided by e.g., an azine,...
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5656759 |
Hydrophobic cationic dye compounds
When the counter ion of hydrophilic cationic dyes is substituted with an organic anion including a sulfosuffinate anion such as diethylhexylsulfonate anion, an alkylbenzenesulfonate anion such as a...
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5319074 |
Bifunctional reactive dyestuffs containing vinylsulphone or alkylsulphone groups and a 2,4 difluoro pyrimidine group
A metal-free dyestuff of the formula ##STR1## and metal complex thereof wherein: Fb=the radical of a dyestuff selected from the group consisting of mono- or polyazo, anthraquinone, phthalocyanine,...
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5147874 |
Cyclic anthranilic acid derivatives and process for their preparation
An antirheumatoid pharmaceutical composition containing a cyclic anthranilic acid derivative of the following formula, ##STR1## wherein R 1 , R 2 and R 3 each independently indicate a hydrogen...
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5073634 |
Tetrachloroferrates of basic dyes
Basic dyes of the formula Chr ♁[FeCl 4 ] .crclbar . where Chr a is a dye cation are useful for dyeing acrylonitrile polymers or acid-modified polyesters.
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4990615 |
Triphendioxazine and triphendithiazine direct dyestuffs
Triphendioxazine and triphendithiazine direct dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description produce on natural and synthetic OH-- and NH--...
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4906749 |
Cyclic anhydride derivatives of chromophors
Novel chromophor derivatives of cyclic anhydrides are provided which have the ability to react with a variety of organic substrates forming adducts which are useful in analytical techniques for the...
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4873318 |
Oxazine-ureas and thiazine urea chromophors
Novel adducts of oxazine urea chromophors or thiazine urea chromophors with organic substrates are provided which are useful in analytical techniques for the detection and measurement of biological...
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4859667 |
Pharmaceutical compositions of phenothiazone derivatives and analogs
Phenothiazone derivatives and analogs thereof, pharmaceutical compositions and methods of treatment are disclosed. These compounds are useful as inhibitors of mammalian leukotriene biosynthesis. As...
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4803269 |
4-monosubstituted and 4,6-disubstituted N-(α-phenylethyl)phenoxazines
4-Monosubstituted and 4,6-disubstituted phenoxazines, methods of preparing them and pharmaceutical compositions containing them. These compounds are useful as anti-inflammatories.
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4789742 |
Isomaleimide and isophthalimide derivatives of chromophors
Novel Isomaleimido and isophthalimido derivatives of chromophoric compounds are provided which are useful in analytic techniques for the detection and measurement of biological compounds such as...
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4780535 |
Maleic and phthalic diamides
Conjugates of isomaleimides and isophthalimides and organic chromophoric compounds exhibiting fluorescence, luminescence, chemiluminescence or absorption of analytical value having the structural...
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4775754 |
Preparation of leuco dyes
Oxazine, thiazine and diazine leuco dyes are synthesized through a reaction using a dicyclohexylcarbodiimide adduct. The adducts are themselves novel compounds.
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4652643 |
3-amido-7-disubstituted amino-10-carbonylphenothiazines
3-(N--R 2 --N-Acylamino)-7-(N--R 3 --N--R 4 -amino)-10-acylphenothiazines and phenoxazines useful as color formers, particularly in electrochromic recording systems, are prepared by the...
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4622395 |
Phenoxazine and phenothiazine dyes and leuco forms thereof
Novel phenoxazine and phenothiazine dyes have the formula ##STR1## wherein X can be --S-- or --O--; each R can be the same or different and is independently selected from (1) hydrogen, (2)...
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4569997 |
Polyalkylpiperidine compounds
By reacting compounds of the formula ##STR1## with diisocyanates or triisocyanates of the formula R 4 (NCO) n at a low temperature, the corresponding 1-carbamyl compounds of the formula I...
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4561001 |
Electrochromic marking systems
3-(N-R 2 -N-Acylamino)-7-(N-R 3 -N-R 4 -amino)-10-acylphenothiazines and phenoxazines useful as color formers, particularly in electrochromic recording systems, are prepared by the interaction...
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4524204 |
Process for replacing anions or organic cationic salts
A process for replacing and recovering the anion of an acid-stable organic cationic salt comprises the steps of: (a) preparing a first dispersion or solution by combining (i) a first...
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4473498 |
Water-soluble, fiber-reactive organic dyestuffs containing a β-chloro-ethylsulfonyl-methyl-benzoic acid amide group
Novel organic, water-soluble compounds having fiber-reactive and fiber-finishing properties and containing, as a fiber-reactive group, one or two β-chloroethylsulfonylmethyl-benzoic acid amide...
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4436920 |
Image recording members
Recording members having excellent light resistance are obtained by using as a dye precursor specific diarylaminofluoran compounds.
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4423226 |
Zinc chloride complex compounds
Zinc chloride complex compounds to which the structure of the general formula (1) ##STR1## can be assigned, in which the individual radicals in the formula have the following meanings: Rhu 1 is a...
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4367334 |
Borontetrafluoride salts of basic oxazine dyes
The invention relates to dye salts of the formula ##STR1## wherein R 1 and R 4 are hydrogen or alkyl, R 2 and R 3 are hydrogen, alkyl, aralkyl or aryl, and Y and Z are hydrogen, halogen, alkyl,...
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4362873 |
Process for the preparation of basic oxazine dyestuffs
The invention relates to a process for the preparation of dyestuffs of the formula: ##STR1## in which R 1 represents hydrogen, alkyl, alkenyl or aralkyl, R 2 represents alkyl, alkenyl,...
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4289880 |
Cationic oxazine dyes
There are described new blue cationic oxazine dyes of the formula ##STR1## in which R 1 , R 2 , R 3 and R 4 independently of one another are each C 1 -4 -alkyl, with R 1 and R 2 together with...
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4237281 |
Dyestuffs containing amino or imino groups
Novel dyestuffs containing amino or imino groups and their preparation are provided. These dyestuffs have the general formula ##STR1## wherein R is --N(R 3 )CH 2 --Z or --NCH--Z, X is N or CR 6...
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4196286 |
Process for the manufacture of basic oxazine dyestuffs
Process for the manufacture of a basic oxazine dyestuff of the formula (1) ##STR1## in which R, R 2 and R 3 denote alkyl with 1 to 4 carbon atoms and R 1 denotes H or alkyl with 1 to 4 carbon...
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4141688 |
Composition, device and method for determining reducing agents
A composition, device and method for determining the presence of a reducing agent, such as ascorbic acid, in a test sample are disclosed. The composition comprises certain thiazine and oxazine...
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4018763 |
Process for the manufacture of basic oxazine dyes
A process for the preparation of basic oxazine dyes of the formula ##STR1## wherein R represents a low molecular alkoxy or alkyl group which is substituted or unsubstituted, R 1 represents a low...
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4009162 |
Basic oxazine dyestuffs
New valuable basic oxazine dyestuffs of the formula ##STR1## in which R is hydrogen or lower alkyl, R 1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R 2 and...
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3979386 |
Iminoisoindoline pigments and processes for the preparation thereof
Iminoisoindolinone pigments of the formula ##SPC1## Wherein X represents halogen atoms, Y represents a halogen atom, an alkoxy, cycloalkoxy, aralkoxy, aryloxy, alkylthio or arylthio group, R...
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3972879 |
Process for isolating easily soluble basic oxazine dyestuffs and phenazine dyestuffs
Basic oxazine and phenazine dyestuffs are isolated from their solutions by adding urea or thiourea.
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3928339 |
Basic oxazine dyestuffs and process for their preparation
Basic oxazine dyestuffs of the formula I ##SPC1## in which R stands for a lower alkyl group which may be substituted, R 1 and R 2 each stands for a hydrogen atom or a lower alkyl group which may...
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3894014 |
Production of oxazine dyes
The production of basic oxazine dyes by the reaction of 3-alkoxy-4-azoaniline derivatives with meta-aminophenols in the presence of acidic condensing agents.
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3894012 |
Production of oxazine dye
An improved process for the production of oxazine dyes by condensation of a meta-aminophenol and a 3-alkoxy-4-nitroso-N-substituted aniline comprising the addition of a Lewis acid and a base in the...
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3873340 |
Pressure-sensitive copying paper containing phenoxazine compounds
A pressure-sensitive copying paper comprising an adsorbent solid acid and a microencapsulated color former capable of forming a distinct color when reacted with the adsorbent acid coated on the...
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3856788 |
DYESTUFF AND METHOD OF MAKING AND USING SAME
3,7-Diaminophenoxazinium salts having the formula: ##SPC1## In which R 1 is an alkyl group having from 1 to 4 carbon atoms, R 2 , R 3 and R 4 , which may be the same or different, are hydrogen,...
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3731222 |
PHENOXAZINE DYE LASERS
Phenoxazine dyes are useful as laser dyes. These dyes are used in solution with a non-interfering solvent to form lasing media useful in dye lasers. Such lasers generally include a reservoir for...
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3691187 |
CERTAIN BENZOTHIAZOLYL-COUMARINS
Dyes of the formula: ##SPC1##especially in the form of the sodium, potassium or ammonium salts of the sulfonic acids. The dyes are particularly useful for dyeing synthetic polyamide textile...
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3681347 |
BASIC OXAZINE DYESTUFFS
Basic oxazine dyestuffs having the formula ##SPC1## Wherein R represents an alkyl group, R 1 , R 2 and R 3 each represent an alkyl group which may contain further substituents and R 1 and R 2 ...
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3475427 |
PHENOXAZINES
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3354178 |
Nu-(4-amino-2-butynyl)-nu-alkylcarboxamides
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