| 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) |
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| 04/09/1997 | EP0766659A1 Fluoroalkylethoxylate compositions having enhanced water solubility |
| 04/09/1997 | CN1147247A N-sulphonyl and N-sulphinyl amino acid amides as microbiocides |
| 04/08/1997 | US5618976 Alkanesulfonamides from ammonium alkanesulfonates |
| 04/08/1997 | US5618975 Process for the preparation of biphenyl derivatives |
| 04/02/1997 | EP0765930A2 Process for preparation of sulphonates |
| 04/02/1997 | EP0765864A1 Process for the separation of amino acids and aminosulfonic acids by adsorption to zeolites |
| 04/02/1997 | EP0765306A1 Alkyl sulfoacetate compositions and methods for preparing same |
| 04/02/1997 | EP0765302A1 Process for preparing isethionate ethoxylates |
| 04/01/1997 | US5616797 N-(carbonyl, carbonimidoyl, carbonothioyl)sulfonamide charge control agents and toners and developers |
| 04/01/1997 | US5616782 Method of producing alkyl sulfoacetate compositions |
| 04/01/1997 | CA2055460C Alcohol-ester separation by reaction with acetate |
| 04/01/1997 | CA2054773C Protected hydroxy method for alcohol-ester separation |
| 03/27/1997 | CA2186187A1 Process for separating amino acids and/or aminosulphonic acids by adsorbing the amino acids on zeolites |
| 03/20/1997 | WO1997010200A1 Process for the purification of diphenyl ether compounds |
| 03/20/1997 | WO1997010199A1 Process for nitrating diphenyl ether compounds |
| 03/20/1997 | DE19534067A1 Low organic chlorine amt. alkyl- and alkyl ether sulpho-acetate mfr. |
| 03/19/1997 | EP0763533A1 Preparation and use of the pure enantiomers of 8-chloro-6-sulfonyloxy-octanoic acid and its alkyl esters and of the pure enantiomers of 6,8-dichloro-octanoic acid and its alkyl esters |
| 03/19/1997 | EP0763525A2 Detergent manufacture |
| 03/19/1997 | EP0763138A1 Use of sulphated compounds for stuffing leather |
| 03/19/1997 | EP0670829B1 Synthesis of sulfated polyhydroxy fatty acid amide surfactants |
| 03/19/1997 | EP0665831B1 An improved method for preparing n-fluorosulfonimides |
| 03/19/1997 | EP0642494B1 Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate |
| 03/18/1997 | US5612478 More efficient process for preparation of cyclam dimers, used in treatment of hiv |
| 03/18/1997 | CA1339001C Process for the preparation of surfactants |
| 03/13/1997 | WO1997009292A1 Process for the preparation of 4-bromo-1,1-difluorobut-1-ene and 2,4-dibromo-1,1,1-trifluorobutane |
| 03/12/1997 | EP0761647A2 Improved method for preparing hydroxylamines using vinylic compounds without base neutralization and reaction mixture produced thereby |
| 03/12/1997 | EP0761646A1 Preparation of alkanesulfonamides with low residual ammonium impurities |
| 03/12/1997 | EP0646163B1 Detergent composition having low skin irritability |
| 03/12/1997 | CN1145064A Process for producing carboxy arene sulphonic acids and their carboxylic acid derivatives |
| 03/12/1997 | CN1144797A Treatment method of cyclohexylamino sodium (calcium) sulfonate mother solution |
| 03/05/1997 | EP0759902A1 Derivatives of aminosulfonic acids, utilization of the same in the synthesis of pseudopeptides and process for their preparation |
| 03/05/1997 | EP0725812A4 Process for making isethionate ester salts |
| 03/04/1997 | US5608116 Reaction of fluorinated alcohol with epoxide in the presence of alkali metal borohydride and alkali metal iodine or iodine |
| 03/04/1997 | US5608103 Oxidation of mercaptans or sulfides in solutions in the presence of oxygen |
| 03/04/1997 | US5607976 Substituted benzenesulfonyl-thioureas and pharmaceutical preparations containing them |
| 03/04/1997 | US5607741 Phenolic acid sulfate esters for prevention of marine biofouling |
| 03/04/1997 | US5607481 Fiber-reactive anthraquinone dyes |
| 02/27/1997 | WO1997006793A1 Non-steroidal sulfatase inhibitor compounds and their method of use |
| 02/27/1997 | CA2229554A1 Non-steroidal sulfatase inhibitor compounds and their method of use |
| 02/25/1997 | US5606104 Sulfonating the corresponding acyloxybenzene |
| 02/25/1997 | US5606034 Process for the preparation of azo dyes |
| 02/20/1997 | WO1997006136A1 Benzenesulphonamide derivatives, preparation thereof and therapeutical uses thereof |
| 02/20/1997 | CA2227912A1 Benzenesulphonamide derivatives, their preparation and their application in therapy |
| 02/19/1997 | EP0758317A1 N-sulphonyl and n-sulphinyl amino acid amides as microbiocides |
| 02/19/1997 | CN1143076A 4-fluoroalkyl substituted phenacyl guanidine, its preparing method, application as medicine or diagnosis agent and medicine containing such compound |
| 02/19/1997 | CN1143064A Method for sulfonating liquid state organics by gas phase sulfur trioxide and its equipment |
| 02/12/1997 | CN1142816A Crystalline, polymorphic form of (S,S,S)-n-(1-|2-carboxy-3-(n2-mesyllysylamino)propyl¨-1-cyclopenlylcarbonyl)tyrosine |
| 02/12/1997 | CN1142491A Reagent and process for synthesis of oxysulphide containing fluorine-containing organic derivatives |
| 02/11/1997 | US5602281 Quick cooling of solution of p-aminobenzenesulfonamide in solvent, separating, drying crystals |
| 02/11/1997 | US5602087 Composition |
| 02/06/1997 | WO1997003952A1 Method for purifying methanesulphonyl chloride |
| 02/05/1997 | CN1141914A Refining technology of high-purity sodium bromaminate |
| 02/04/1997 | US5599992 Diazotizing 2-fluoroaniline ; reducing; hydrolysis; neutralization |
| 02/04/1997 | US5599983 Preparation of alkanesulfonamides with low residual ammonium impurities |
| 01/30/1997 | WO1997003043A1 Process for preparing n-acylaminocarboxylic acids and n-acylaminosulphonic acids and the alkali metal salts thereof |
| 01/29/1997 | EP0755378A1 Diazo-phenanthrenone compounds useful for inhibiting 5-alpha-reductase |
| 01/29/1997 | CN1141624A Taurine derivatives for use in cleanser compositions |
| 01/23/1997 | WO1997002240A1 Sulfosuccinates used as leather-stuffing agents and as cleaning agents |
| 01/22/1997 | EP0754680A1 4-Fluoroalkyl-substituted benzoylguanidines, process for their preparation, their use as medicament or diagnostic as well as medicaments containing them |
| 01/22/1997 | EP0754174A1 Process for producing carboxy arene sulphonic acids and their carboxylic acid derivatives |
| 01/22/1997 | CN1140704A Process for selective oxidation of compounds |
| 01/21/1997 | US5596128 Sulfonating agent and sulfonation process |
| 01/21/1997 | US5596095 Removal of neopentyl protecting groups and regeneration of parent drugs |
| 01/20/1997 | CA2181515A1 4-fluoroalkyl-substituted benzoylguanidines, process for their preparation, their use as a medicament or diagnostic, and medicament containing them |
| 01/16/1997 | DE19525512A1 Verfahren zur Herstellung von N-Acylaminocarbonsäuren und N-Acylaminosulfonsäuren sowie deren Alkalimetallsalzen A process for preparing N-acylamino carboxylic acids and N-acylamino sulfonic acids and their alkali metal salts |
| 01/15/1997 | EP0753508A1 Process for the preparation of N-(alkylsulfonyl)amides |
| 01/15/1997 | CN1033807C Preparation of overbased magnesium sulphonates |
| 01/14/1997 | US5594150 Process for the preparation of a secondary or tertiary hydroxylated amine compound from a primary or secondary amine compound and a product made by the process |
| 01/09/1997 | DE19524268A1 Sulfosuccinate Sulfosuccinate |
| 01/08/1997 | EP0752418A1 Method for preparing 4-alkyl-2-hydroxy-3, 5-dichlorobenzene sulphonic acids |
| 01/02/1997 | EP0751131A1 A process for preparing an acyl halide or sulfonyl halide |
| 12/31/1996 | US5589598 Process of purification of 2,6-diisopropylphenol |
| 12/24/1996 | US5587500 Reacting crude sulfonic acid with bleaching agent and alcohol in equipment made of non-metallic materials or low-iron corrosion resistant alloys, neutralizing with solid base in alcohol solvent |
| 12/18/1996 | EP0748796A2 Process for the preparation of fluid, anhydrous acyloxyalkanesulfonates and their use |
| 12/18/1996 | CN1138030A Improvement on 2-amino-1-naphthalenesulfonic acid industrial making method |
| 12/17/1996 | US5585519 Microbicides |
| 12/12/1996 | WO1996039406A1 NOVEL CRYSTAL FORM OF ANHYDROUS 7-([1α, 5α, 6α]-6-AMINO-3-AZABICYCLO[3.1.0]HEX-3-YL)-6-FLUORO-1-(2,4-DIFLUOROPHENYL)-1,4-DIHYDRO-4-OXO-1,8-NAPHTHYRIDINE-3-CARBOXYLIC ACID, METHANESULFONIC ACID SALT |
| 12/12/1996 | WO1996039378A1 Preparation of amido ester compounds |
| 12/12/1996 | WO1996028420A3 Preparation of n-arylmethyl aziridine derivatives, 1,4,7,10-tetraazacyclododecane derivatives obtained therefrom and n-arylmethyl-ethanol-amine sulphonate esters as intermediates |
| 12/11/1996 | EP0746631A1 Use of sulphured substances for stuffing leather |
| 12/11/1996 | EP0746629A1 Use of sulfonated substances for stuffing leather |
| 12/11/1996 | EP0746628A1 Use of sulphited substances for stuffing leather |
| 12/11/1996 | EP0746541A1 Taurine derivatives for use in cleanser compositions |
| 12/11/1996 | CN1137792A Process for making sulfonated fatty acid alkyl ester surfactant |
| 12/11/1996 | CN1137791A Process for making sulfonated fatty acid alkyl ester surfactant |
| 12/11/1996 | CN1137519A Substituted benzenesulfonylureas and -thioureas, processes for their preparation, their use for production of pharmaceutical preparations, and pharmaceutical preparations containing them |
| 12/11/1996 | CN1137517A Preparing reagent grade sulfosalicylic acid and its sodium salt by industrial product epuration |
| 12/10/1996 | US5583253 Treating crude aqueous alkanesulfonic acid with chlorine to convert oxidizable impurities to alkanesulfonyl chloride, hydrolyzing to acid |
| 12/10/1996 | US5583252 Oxidation of 4-nitrotoluene-2-sulphonic acid with oxygen in presence of a solvent comprising mixture of water and ether alcohol, crystallization and solvent extraction |
| 12/10/1996 | CA2064655C Process for preparing detergent compositions |
| 12/04/1996 | CN1137265A Dihalopropene compounds, insecticidal/acaricidal agents containing same, and intermediates for their production |
| 12/03/1996 | US5581009 Esterification, neutralization, solvent extraction, and acidifiction, |
| 12/03/1996 | US5581000 High solubility in polar solvents |
| 11/26/1996 | US5578278 Tubular reactor system for direct fluorination |
| 11/21/1996 | WO1996036597A1 Process for the catalytic hydrogenation of aromatic nitro compounds |
| 11/20/1996 | EP0743299A1 Process for the preparation of 2-fluorocyclopropylamine sulfonic acid salts and the chemical compound 2-fluorocyclopropylisocyanate |
| 11/20/1996 | EP0716646A4 Process for sulfonating internal olefins |
| 11/14/1996 | WO1996035662A1 Process for producing alkylenediaminediorganic acid and salts thereof |
| 11/13/1996 | EP0624152B1 Process for preparing ketone enantiomer |
| 11/13/1996 | CN1135480A Alkyl heterocyclic compound and preparation method thereof, and medicinal composition containing that kind of compound |