Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
04/1994
04/27/1994EP0593432A1 Process for making short-chain alkane sulphonic acids from olefines
04/26/1994US5306855 Oxidative conversion to oxy-esters; conversion to alcohol intermediate; catalysis
04/26/1994US5306813 Reactive dyes having a bulky linker group
04/26/1994CA1328889C Purification of alkanesulfonyl chlorides
04/21/1994DE4235139A1 Lowering the viscosity of alpha-sulphonated fatty acid mono- and/or di-salt dispersion - by adding solid particles during the neutralisation of the sulphonated fatty acid, prepd. by reacting the corresponding acid with gaseous sulphur tri:oxide with aq. base
04/20/1994EP0592509A1 Activated propenes as colour couplers and a method for their production.
04/20/1994EP0592490A1 Amino acid derivative anticonvulsant
04/20/1994CN1024276C Process for preparing 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and its non-toxic salts
04/19/1994US5304661 Substituted-acyclic terpene compound
04/19/1994CA1328608C Glaucoma treatment
04/14/1994WO1994007507A1 Method for antagonizing inositol 1,4,5-triphosphate
04/14/1994CA2145681A1 Method for antogonizing inositol 1,4,5-triphosphate
04/13/1994CN1085210A Preparation of 1,4-diaminoan-thraquinone-2,3-disulfonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile
04/12/1994US5302732 Use of ultra-low sodium silica-aluminas in the alkylation of aromatics
04/12/1994US5302725 Aryl triflate compounds and radiologically acid producing agents thereof
04/12/1994US5302704 For dyeing polyamide fibers; colorfastness
04/12/1994US5302376 Cosmetic screening emulsion comprising a UV-A screening agent and a UV-B screening agent and its use for skin protection against ultraviolet radiation
04/06/1994EP0591105A2 Bisazo, bisazomethine and azo-azomethine compounds
04/06/1994EP0417256B1 Novel n-(sulfomethyl)-n'-arylureas
04/05/1994US5300665 Process for preparing fatty acid esters and amides of sulfonic acid salts
04/05/1994US5300396 Process of making naphthoquinone diazide esters using lactone solvents
03/1994
03/31/1994WO1994006792A1 Optically active hydroquinine (amino-3 phenyl)-1 ethanesulfonate, preparation and use thereof
03/31/1994WO1994006782A1 Benzoxazole and bezothiazole derivatives
03/31/1994WO1994006777A1 Heterocyclic compounds wiht parasitical activity
03/31/1994WO1994006760A1 Optically active alkylammonium (amino-3 phenyl)-1 ethanesulfonate derivatives, preparation and use thereof
03/31/1994WO1994006759A1 No-bleach process for making sulfonated fatty acid alkyl ester surfactant
03/31/1994CA2144159A1 Optically active alkylammonium 1-(3-aminophenyl)ethanesulfonate; preparation thereof and its use
03/31/1994CA2144158A1 Optically active hydroquinine 1-(3-aminophenyl)ethanesulfonate; preparation thereof and its use
03/30/1994EP0589621A1 Substituted styrenes
03/30/1994EP0588824A1 Preparation of overbased magnesium sulphonates.
03/30/1994CN1084510A Benzophenonehydrazones
03/30/1994CN1084509A Cancer sensitizing drug butyl sulfanilic acid and preparing method thereof
03/23/1994EP0587774A1 Sulfonation process for viscous sulfonic acid
03/23/1994EP0587577A1 Compounds and method for protection of cells and tissues from irreversible injury due to lactic acidosis
03/23/1994EP0433360B1 Improvements relating to the production of prodrugs
03/22/1994US5296615 Process and intermediates for chiral epoxides
03/22/1994US5296508 Farnesylated tetrahydro-naphthalenols as hypolipidemic agents
03/22/1994US5296330 Positive photoresists containing quinone diazide photosensitizer, alkali-soluble resin and tetra(hydroxyphenyl) alkane additive
03/18/1994CA2105418A1 Process for preparing fatty acid esters and amides of sulfonic acid salts
03/16/1994EP0587088A1 Derivatives of substituted cyclohexane, their process of preparation and their application with the treatment of diseases
03/16/1994EP0586975A1 Method for the isolation of 2-naphthylamine-1,5,7,-trisulphonic acid
03/15/1994US5294735 Semicarbazides and the use thereof for stabilizing polyamide fibre materials and the dyeings produced thereon
03/15/1994US5294726 Process for the preparation of light-colored oleic acid sulfonates
03/15/1994US5294530 Silver halide color photographic material
03/15/1994US5294521 Forming patterns on semiconductor wafers
03/09/1994EP0586346A1 Method for the preparation of distyrylbiphenyl compounds
03/09/1994EP0585627A1 A process for preparing perfluoroalkylsulfonylfluorides and electrodes for carrying out said process
03/09/1994CN1083480A Process for the preparation of substituted benzenes and benzene sulfonic acid and derivatives thereof and a process for the preparation of N,N'-substituted ureas
03/08/1994US5292986 Isoparaffin-olefin alkylation catalyst composition and process
03/08/1994US5292947 Contacting dehydrated phosphoric acid with alkylsulfonic acid
03/08/1994US5292932 Process for the preparation of 5-chloro-2-hydroxy-4-alkyl-benzenesulfonic acids
03/04/1994CA2105371A1 Process for preparing distyrylbiphenyl compounds
03/03/1994WO1994004515A1 Method of increasing the spf rating and compounds suitable for increasing the spf rating of fibre or fabric
03/03/1994WO1994004490A1 Process for preparation of sulphonates
03/03/1994WO1994004143A1 Substituted hydrindanes for the treatment of angiogenesis-dependent diseases
03/03/1994DE4228377A1 Prepn. of 2-amino-4-nitrophenol-6-sulphonic acid in improved yield and purity useful for prepn. of azo dyes - by partial redn. of 2,4-di:nitro phenol-6-sulphonic acid in the presence of magnesium sulphate
03/02/1994EP0585071A1 Process for making sodium acylisethionates
03/02/1994EP0584328A1 Perhalogenated sultone-derived monomers and polymers produced therefrom.
03/02/1994EP0584191A1 Novel aromatic and polycyclic compounds and their use in human or veterinary medecine and in cosmetics.
03/01/1994US5290773 Sulfonyl derivatives
02/1994
02/23/1994EP0584043A1 Process for the preparation of substituted benzenes and benzene sulfonic acid and derivatives thereof and a process for the preparation of N'N-substituted ureas
02/23/1994EP0583672A1 Process for the preparation of 2-aryl-ethane-sulfonic acids
02/23/1994EP0583446A1 Wax dispersions, their preparation and use.
02/22/1994US5288727 Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them
02/22/1994CA2104520A1 Process for making sodium acylisethionates
02/17/1994WO1994003165A1 Antithrombotic treatment with calix(n)arene compounds
02/17/1994WO1994003164A1 Inhibition and treatment of infection by enveloped virus with calix(n) arene compounds
02/17/1994DE4226427A1 5-Methoxy-2-amino-benzene-1-sulphonic acid prodn. for use as dyestuff intermediate - by conversion of a p-anisidine to mixt. of neutral and acid sulphate with sulphuric acid, then reaction with sulphamic acid
02/16/1994EP0582928A2 Surface active compounds based on modified castor oil fatty substances
02/16/1994EP0582810A1 Novel 7-(substituted)-8-(substituted)-9-(substituted amino)-6-demethyl-6-deoxyetracyclines as antibiotic agents
02/16/1994EP0582789A1 Novel 7-(substituted)-8-(substituted)-9- (substituted glycyl)amido -6-demethyl-6-deoxytetracyclines
02/16/1994CN1082036A Solid electrolytes derived by polymerization of vinyl sulfonate polyalkylene oxides
02/15/1994US5286746 HMG-CoA reductase inhibitors; antihypercholesterolemic agents
02/15/1994US5286284 Used in electrolytic coloring of aluminum
02/09/1994EP0582248A1 Method for the preparation of 3-sulphobenzoic acid and its alkali metal salts
02/09/1994EP0582247A1 Method for the preparation of alkali metal salts of 3-sulphobenzoic acid
02/09/1994EP0582079A1 Method to produce 1,4-diaminoanthraquinone-2,3-disulphonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile
02/09/1994EP0581939A1 N-sulphonyl-2-oxoindole derivatives having affinity for vasopressin and/or ocytocin receptors
02/08/1994US5284993 Alkylation catalyst regeneration
02/03/1994WO1994002885A1 Hexahydroxybenzophenone sulfonate esters of diazonaphthoquinone sensitizers and positive photoresists employing same
02/03/1994WO1994002454A1 Solid electrolytes derived by polymerization of vinyl sulfonate derivatives
02/03/1994WO1994002450A1 Amino acid linked nitrogen mustard derivatives and their use as prodrugs in the treatment of tumours
02/03/1994WO1994002109A2 An instantaneously self-foaming liquid cleansing composition and dispenser therefor
02/03/1994DE4224747A1 New biodegradable ether sulphonate(s) prepn. - by sulphonating unsatd. ether(s), neutralising then hydrolysing with aq. base, useful for preparing low foam wetting agents for pretreating and washing textiles
02/03/1994DE4224735A1 Light-coloured lower alkyl alpha-sulpho:fatty ester salt prodn. - by sulphonating fatty acid or lower alkyl ester in presence of thio-di:glycol ester to reduce oxidn. by sulphur tri:oxide, useful as detergent
02/03/1994CA2139732A1 An instantaneously self-foaming liquid cleansing composition and dispenser therefor
02/02/1994EP0581725A1 Benzophenone hydrazones
02/02/1994EP0580637A1 IMIDAZO (4,5-c)PYRIDO DERIVATIVES, PROCESS AND INTERMEDIATES FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
02/02/1994CN1081451A Method for producing condensation compound of methyl naphthalene sulfonic acid and formaldehyde
02/01/1994US5283355 Benzoquinone compounds
02/01/1994US5283324 Process for preparing radiation sensitive compound and positive resist composition
02/01/1994US5283276 Amorphous overbased alkaline earth metal sulfonate, solvent or plasticizer, polymeric material
02/01/1994CA1326668C Ethers and thioethers having therapeutical activity, their preparation and pharmaceutical compositions containing them
01/1994
01/29/1994CA2096447A1 Process for conversion of sulfates to sulfonates
01/27/1994DE4324654A1 Presensitised lithographic printing plate with light-sensitive ester coating - comprises naphthoquinone-di:azide-sulphonate of poly-4-hydroxyphenyl-alkane and alkali-soluble resin, for hydrofluoride free soln. mark removal
01/26/1994EP0579606A1 Fatty acid monoglyceride polyglycol ether sulphosuccinates, their method of preparation and their use
01/25/1994US5281626 Benzenesulfonamide derivatives
01/25/1994US5281361 Peroxide bleach, cationic nitrile precursor to activate bleach
01/23/1994CA2081618A1 Solid electrolytes derived by polymerization of vinyl sulfonate polyalkylene oxides
01/20/1994WO1994001771A1 Universal standard reagents, method of preparing same and use thereof