Patents
Patents for C07C 303 - Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides (11,473)
07/2000
07/26/2000EP1022267A2 Process for the manufacture of diazonium compounds with a low sodium ions content
07/26/2000CN1261071A Matte salts and production thereof
07/26/2000CN1054840C Process for making sulfonated fatty acid alkyl ester surfactant
07/25/2000US6093848 Preparation of substituted guanidine derivatives
07/25/2000CA2272597A1 Quaternary ammonium salts of sulfonylurea
07/20/2000WO2000041997A1 Process for the preparation of optically active amino alcohols
07/20/2000DE19900939A1 Verfahren zur Herstellung von Amidosäurephenylestern A process for preparing Amidosäurephenylestern
07/20/2000CA2296173A1 A process for the production of diazonium compounds with a low content of sodium ions
07/20/2000CA2296128A1 A process for the production of diazonium compounds with a low content of sodium ions
07/19/2000EP1020437A1 Process for producing halogenoalkylsulfonamide derivatives
07/19/2000EP1020436A1 Process for the preparation of amidocarboxylic acid phenyl esters
07/19/2000EP0815067B1 Process for the alkoxylation of fluorinated alcohols
07/19/2000CN1260346A Method for preparing amino-aryl sulfonic acid
07/19/2000CN1260345A Hydrazide compound, its preparing method and medicine compositions thereof
07/19/2000CN1054600C Treatment method of cyclohexylamino sodium (calcium) sulfonate mother solution
07/19/2000CN1054598C Pharmacalogically active hydrazine derivatives and process for preparation thereof
07/18/2000US6090981 Antiarrhythmics.
07/13/2000WO2000040571A1 Novel malonic acid derivatives, processes for their preparation, their use and pharmaceutical compositions containing them (inhibition of factor xa activity)
07/13/2000WO2000040551A1 Process for forming highly soluble linear alkyl benzene sulfonate surfactant and cleaning compositions containing same
07/13/2000WO2000040529A1 Colchinol derivatives as vascular damaging agents
07/13/2000CA2358578A1 Novel malonic acid derivatives, processes for their preparation, their use and pharmaceutical compositions containing them (inhibition of factor xa activity)
07/13/2000CA2355302A1 Colchinol derivatives as vascular damaging agents
07/12/2000CN1054372C Amino substituted benzosulfonylurea and -thiorea prepn. and pharmaceutical use of same
07/12/2000CN1054371C Process for preparing water soluble methyl-disulfonate
07/11/2000US6087530 Process for preparing β-amino-α-hydroxy acid derivatives
07/11/2000US6087529 Process for the stabilization of alkylbenzenesulphonates
07/11/2000US6087309 Liquid cleaning compositions containing selected mid-chain branched surfactants
07/06/2000WO2000038813A1 Dehydration process
07/06/2000CA2353480A1 Dehydration process
07/05/2000EP1016655A2 Method for producing trifluoromethanesulfonyl chloride
07/05/2000EP1016654A2 Process for the preparation of substituted aromatic and heteroaromatic aldehydes and carboxylic acids
07/05/2000EP1015428A1 Sulfo-n-hydroxy succinimide and method of preparation
07/05/2000EP1014966A1 Pharmaceutical for treatment of neurological and neuropsychiatric disorders
06/2000
06/29/2000DE19860048A1 Verfahren zur Herstellung von Guanidinderivaten A process for preparing guanidine derivatives
06/28/2000EP1013641A2 Acylation agent
06/28/2000EP1013640A1 Synthesis of guanidines from O-alkylisoureas using a crystal seed
06/22/2000WO2000035864A1 New biphenyl and biphenyl-analogous compounds as integrin antagonists
06/22/2000WO2000035863A1 Pesticide formulations containing alkoxylated tristyrylphenol hemi-sulfate ester neutralized alkoxylated amine surfactants
06/22/2000WO2000035442A1 Hydroxy diphenyl urea sulfonamides as il-8 receptor antagonists
06/22/2000CA2355890A1 Hydroxy diphenyl urea sulfonamides as il-8 receptor antagonists
06/22/2000CA2355161A1 Biphenyl and biphenyl-analogous compounds as integrin antagonists
06/21/2000EP1010691A2 Hydrazide derivatives, process for their preparation and pharmaceutical compositions containing them
06/21/2000EP1009743A1 Certain benzothiazine dioxide endothelin antagonists and processes for their preparation
06/20/2000US6077942 Precipitation from an organic polar solvent bath that is maintained at a temperature of from about 0-30 degrees c.; and filtering the resulting naphthoquinone diazide ester.
06/20/2000US6077941 Method for producing 1,2-naphthoquinone-2-diazide derivatives
06/17/2000CA2292246A1 New hydrazide derivatives, the procedure for preparing them and the pharmaceutical formulations that contain them
06/15/2000WO2000034233A1 Continuous production of 2-acrylamido-2-methylpropane-sulfonic acid in a small reactor integrated with acrylic polymer fiber production
06/15/2000CA2354392A1 Continuous production of 2-acrylamido-2-methylpropane-sulfonic acid in a small reactor integrated with acrylic polymer fiber production
06/14/2000EP1007508A1 Method for producing fatty acid polyglycol ester sulphates
06/14/2000EP0845985B1 Non-steroidal sulfatase inhibitor compounds
06/13/2000US6075115 Contacting 5-sulfo isophthalic acid metal salt and dialkyl ester of 5-sulfo isophthalic acid metal salt in presence of a catalyst with glycol to form dyeable cationic polyester
06/08/2000WO2000032570A1 Hydrazine derivatives
06/08/2000WO2000032569A2 Alpha-sulfin- and alpha-sulfonamino acid amides
06/08/2000WO2000032568A2 $g(a)-sulfin- and $g(a)-sulfonamino acid amides
06/08/2000WO2000032552A1 Process for the preparation of functionalized chiral cyclopentanes involving transformation of azanorbornyl derivatives
06/08/2000DE19855335A1 Production of aminoarylsulfonic acids comprises hydrogenation of nitroarylsulfonic acids in an aqueous medium in the presence of a pre-treated Raney nickel catalyst
06/08/2000CA2351321A1 Hydrazine derivatives
06/07/2000EP1005451A2 Process for preparing and/or purifying amido acid phenyl ester sulfonates
06/07/2000CN1053174C Method for sulfonating liquid state organics by gas phase sulfur trioxide and its equipment
06/02/2000WO2000031029A1 Method of producing organic disulfides
06/02/2000WO2000031028A2 Improved synthesis of bleach activators
06/02/2000WO2000031027A1 Method of producing alkane sulfonic acid
06/02/2000CA2349003A1 Improved synthesis of bleach activators
05/2000
05/31/2000EP1003718A1 Method for the production of n-(5-amino-2-cyano-4-fluoro-phenyl)-sulphonamides and new intermediate products
05/31/2000EP0839127B1 Process for preparing n-acylaminocarboxylic acids and n-acylaminosulphonic acids and the alkali metal salts thereof
05/31/2000DE19854428A1 Verfahren zur Herstellung von Alkansulfonsäuren A process for preparing alkanesulfonic acids
05/31/2000DE19854427A1 Verfahren zur Herstellung von organischen Disulfiden A process for the preparation of organic disulfides
05/31/2000CN1255123A Process for covalently coupling organic compounds utilizing diboron derivatives
05/31/2000CN1052976C Substituted benzenesulfonylureas and -thioureas, preparation process and possible uses of pharmaceutical preparation therefor
05/30/2000US6069262 Non-catalyzed esterification within heated reaction vessel containing reaction mixture having molar excess of fatty acid; personal care cleansers
05/24/2000EP1002028A1 Cleaning products comprising improved alkylarylsulfonate surfactants prepared via vinylidene olefins and processes for preparation thereof
05/24/2000EP1002020A1 Dye intermediate and method to manufacture dyes
05/24/2000EP1001927A2 Novel polyamine analogues as therapeutic and diagnostic agents
05/24/2000EP1001921A1 Improved processes for making alkylbenzenesulfonate surfactants and products thereof
05/24/2000CN1254328A Process for preparing substituted 2-3-dihydro-1-indanones
05/24/2000CN1253946A Method for clean producing substituted arylamine sulfonic acid
05/24/2000CN1052719C Process for preparation of 1,4-diaminonan-thraquinone-2,3-disulfonic acid
05/23/2000US6066760 Process for the preparation of alkane sulfonic acid and alkane sulfonyl chloride
05/18/2000WO2000027808A1 N-arylsulfonyl amino acid omega amides
05/17/2000EP1000010A1 Nitration process for diphenyl ethers
05/17/2000CN1052475C Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid
05/16/2000US6063545 Comprising a sulfonated polyhydroxy-substited benzene to generate a strong acid using actinic radiation, a compound having two groups crosslinkable by means of acid and a binder insoluble in water or soluble/swellable in aqueous alkaline
05/11/2000WO2000026161A1 Sulphonylation method and reagent useful for perhalogenated sulphanilide synthesis
05/11/2000DE19851184A1 N-Arylsulfonyl-aminosäure-omega-amide N-arylsulfonyl-amino-omega-amides
05/10/2000EP0999258A1 Low viscosity, chloride-free, low overbased alkyl-aryl-sulfonate, its application as an additive for lubricating oil, and methods of preparation
05/10/2000EP0998453A1 Sulphonation process and novel sulphonated compounds
05/10/2000CN1052222C Method for improvement of surface active agent composition of alkyl sulfonate
05/09/2000US6060621 Process for the preparation of methanesulfonic acid
05/09/2000US6060616 Antitumors agents; leukemia, ovarian carcinoma
05/09/2000US6060443 Mid-chain branched alkyl sulfate surfactants
05/05/2000CA2273191A1 Low viscocity, chloride-free, low overbased alkyl-aryl-sulfonate, its application as an additive for lubricating oil, and methods of preparation
05/04/2000WO2000024709A2 Monomers, ionomers and polymers for electrochemical uses
05/04/2000WO2000024704A1 Process for producing peptidyl aldehydes
05/04/2000CA2348048A1 Method of producing peptidylaldehyde
05/04/2000CA2342887A1 Monomers, ionomers and polymers for electrochemical uses
05/03/2000EP0861233B1 N-protected/n-substituted-beta-amino hydroxy sulfonates
05/02/2000US6057463 Amidation of aminoalkanesulfonic acid with fatty acid
04/2000
04/27/2000WO2000023548A1 Laundry detergents comprising modified alkylbenzene sulfonates
04/26/2000CN1251576A Process for producing perfluorovinyl ethersulfonic acid derivatives and copolymer of same
04/26/2000CN1051761C Process for preparing di-n-octyl succinate sodium sulfonate
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