| 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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| 03/08/2012 | WO2012027951A1 An intermediate used for preparation of imipenem medicine, a preparation method and use thereof |
| 03/08/2012 | DE19821668B4 Carbodiimidgemische auf der Basis von 1,3-Bis-(1-methyl-1-isocyanato-ethyl)-benzol, Verfahren zu ihrer Herstellung, ihre Verwendung sowie Polyurethanelastomere und ihr Herstellungsverfahren Carbodiimidgemische on the basis of 1,3-bis (1-methyl-1-isocyanatoethyl) -benzene, methods for their preparation, their use as well as polyurethane elastomers and their method of preparation |
| 03/07/2012 | EP1347938B1 Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group |
| 03/07/2012 | CN202155187U 反应釜升降温装置 Reactor heating and cooling equipment |
| 03/06/2012 | US8128958 no restriction of food ingestion in its dosage; reduced side effects; tamsulosin |
| 02/29/2012 | EP2423189A1 Method of producing acid halide and acid halide |
| 02/29/2012 | EP2423176A1 Carboxylic acid compound |
| 02/29/2012 | CN202151566U 液膜吸收磺化反应器 Liquid absorption sulfonation reactor |
| 02/29/2012 | CN102365266A Fluorine-containing n-alkyl sulfonyl imide compound, manufacturing method therefor, and method of manufacturing an ionic compound |
| 02/29/2012 | CN102363603A Method for preparing 4-acrylamido benzenesulfonic acid sodium salt |
| 02/28/2012 | US8124416 Selective and sensitive detection of mercuric ion by novel dansyl-appended calix[4] arene molecules, via fluorescence quenching |
| 02/22/2012 | EP2419402A1 Synthesis of 1-amino-1,3,3,5,5-pentamethylcyclohexane mesylate |
| 02/22/2012 | EP0986384B1 Inhibitors of protein isoprenyl transferases |
| 02/22/2012 | CN102361837A Method for manufacturing conjugated aromatic compound |
| 02/22/2012 | CN102357093A Medicinal composition of methanesulfonic acid arbidol oral solid preparation |
| 02/22/2012 | CN101486669B 一种合成牛磺酸的方法 A synthetic taurine way |
| 02/22/2012 | CN101270066B 萘系减水剂制备过程中减少甲醛损耗的方法及其专用设备 Naphthalene superplasticizer preparation process to reduce formaldehyde loss method and special equipment |
| 02/22/2012 | CN101229519B 制备三氟甲磺酸金属盐的方法及其作为酯化催化剂的用途 Preparation of metal salts of trifluoromethane sulphonic acid and their use as esterification catalyst |
| 02/21/2012 | CA2491207C Method for synthesis of hydrogenofluoromethylenesulphonyl radical derivatives |
| 02/21/2012 | CA2348704C Sulphonylation method and reagent useful for perhalogenated sulphanilide synthesis |
| 02/16/2012 | WO2012020513A1 Method for producing fluorine-containing sulfonylimide compound |
| 02/15/2012 | CN102351851A 4-(5-dimethylaminothiophenevinyl)methylpyridine sulfonate, second-order nonlinear optical crystal of 4-(5-dimethylaminothiophenevinyl)methylpyridine sulfonate, and their preparation methods |
| 02/15/2012 | CN102351812A Methanesulfonic acid cinepazide crystal form III and preparation method thereof |
| 02/15/2012 | CN102351760A Modified chlorosulfonic acid method of 4,4-dichlorodiphenyl sulfone |
| 02/15/2012 | CN102351755A Fluorine-containing imine cationic surfactant preparation method and application thereof |
| 02/15/2012 | CN102351754A Method for preparing 4-amino-N-methylphenyl methane sulfonamide |
| 02/15/2012 | CN102351753A Fluorine-containing Gemini-like anionic surface active agent, its preparation method and its application |
| 02/15/2012 | CN102351752A Chlorosulfonic acid optimization method for preparing 4,4-dichlorodiphenyl sulfone |
| 02/15/2012 | CN102351751A Method for chemically synthesizing 2-chloro-5-nitro-benzenesulfonyl chloride |
| 02/15/2012 | CN102351750A Method for preparing methyl benzenesulfonate |
| 02/15/2012 | CN102351749A Benzenesulphonate anionic gemini surfactant and preparation method thereof |
| 02/15/2012 | CN102351748A Preparation method for DNS (4,4'-dinitrostilbene-2,2'-disulphonic acid) sodium salt in DSD (4,4'-diaminodiphenylethylene-2,2'-disulfonic acid) acid production process |
| 02/15/2012 | CN102351747A Method for preparing disodium ethylene glycol dihexyl sulfosuccinate |
| 02/15/2012 | CN102351746A Method for preparing glycol sodium di-sulpho succinate di(2-methyl1-amyl) ester |
| 02/15/2012 | CN102351745A Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate |
| 02/15/2012 | CN102351744A Synthesis process for 2-acrylamido-2-methyl propane sulfonic acid through continuous method |
| 02/15/2012 | CN102351743A Preparation method of ion-pair chromatography reagent sodium octane-1-sulfonate |
| 02/15/2012 | CN102351742A Preparation method of ion-pair chromatography reagent sodium decane-1-sulfonate |
| 02/15/2012 | CN102351741A Method for preparing and purifying paired ion chromatography reagent sodium hexanesulfonate |
| 02/15/2012 | CN102351621A Method for preparing N-sulfonyl amidine |
| 02/15/2012 | CN101758337B 一种助焊剂用非卤素活性剂 One kind of flux with a non-halogen-active agents |
| 02/15/2012 | CN101717355B 一种由萘合成染料中间体h酸的方法 A method for the synthesis of dyes intermediates from naphthalene h acid |
| 02/14/2012 | US8115030 Hydrolysis in toluene solvent; oxidation; reacting a cyclohexylamine carboxylate with sulfoxide halide compound |
| 02/14/2012 | DE202011106670U1 Acrylsulfonsäuremonomere und deren Salze Acrylsulfonsäuremonomere and salts thereof |
| 02/14/2012 | CA2416995C Substituted sulfonylaminomethylbenzoic acid (derivatives) and their preparation |
| 02/09/2012 | US20120035386 Method for preparation of and compositions of low foam, non-gelling, surfactants |
| 02/08/2012 | EP2415758A1 Fluorine-containing n-alkyl sulfonyl imide compound, manufacturing method therefor, and method of manufacturing an ionic compound |
| 02/08/2012 | EP2415757A1 Method for producing imidic acid compound |
| 02/08/2012 | EP2415709A1 Method for producing bis(fluorosulfonyl)imide salt, method for producing fluorosulfate, and method for producing bis(fluorosulfonyl)imide onium salt |
| 02/08/2012 | EP2414277A1 Nanostructured metals |
| 02/08/2012 | CN102344444A Optically pure quinazoline compounds |
| 02/08/2012 | CN102344396A Method for raising utilization rate of toluenesulfonic acid mother liquor |
| 02/08/2012 | CN102344379A Ionic liquid containing nitrogen-containing cation |
| 02/08/2012 | CN101914171B 一种磺酸型uv固化水性环氧乳液及其制备方法 One kind of sulfonic acid type uv-curable waterborne epoxy emulsion and its preparation method |
| 02/08/2012 | CN101703905B 一种双季铵盐双磺酸盐表面活性剂及其合成方法 Surfactants and synthetic method of double quaternary ammonium double salt |
| 02/08/2012 | CN101348449B 一种2,4,5-三氯苯磺酸的制备方法 Method for preparing 2,4,5-trichloro benzene sulfonic |
| 02/07/2012 | CA2529269C Improved pharmaceutical drug candidates and methods for preparation thereof |
| 02/02/2012 | US20120029223 Method for production of substituted alkyl malonic esters and derivatives thereof |
| 02/01/2012 | CN202131252U 一种jcf结合型加脂剂生产装置 One kind jcf combined Fatliquor production unit |
| 02/01/2012 | CN102336689A Preparation and refining method of 4-Cl-(trifluoromethyl) benzene sulfonyl chloride |
| 02/01/2012 | CN101291906B 三氟甲磺酸酐的制备方法 Preparation of trifluoromethanesulfonic acid anhydride |
| 01/31/2012 | US8105993 Process compositions and production of acyl alkylisethionate compositions |
| 01/26/2012 | WO2012010752A1 Preparation of metal salts of triflic acid and of triflimidic acid under ultrasound treatment |
| 01/26/2012 | WO2010011454A1 Aqueous methods for making fluorinated sulfonate esters |
| 01/26/2012 | US20120022281 Process for producing (s)-3-[(1-dimethylamino)ethyl] phenyl-n-ethyl-n-methyl-carbamate via novel intermediates |
| 01/26/2012 | US20120022269 Fluorine-containing n-alkylsulfonylimide compound, manufacturing method therefor, and method of manufacturing an ionic compound |
| 01/26/2012 | US20120022252 Phosphine ligands for catalytic reactions |
| 01/25/2012 | CN102333763A Method for manufacturing benzodiazepine derivative |
| 01/25/2012 | CN102329288A Method for preparing taurine VC calcium citrate |
| 01/25/2012 | CN102329255A Process for synthesizing fomesafen through directional nitration |
| 01/25/2012 | CN102329254A Method for preparing N-[4-[1-hydroxy-2-[(1-methylethyl)amino]ethyl]methylsulfonyl benzylamine hydrochloride |
| 01/25/2012 | CN102329253A Reaction apparatus for resorcinol neutralization reaction section and reaction technology thereof |
| 01/25/2012 | CN102329252A 5-chlorosalicylaldehyde taurine Schiff base potassium compound |
| 01/25/2012 | CN101146768B Method for producing sulfamate-carboxylate derivative |
| 01/25/2012 | CN101037401B High-purity methoxyamine methane sulfonic acid salt and preparation method thereof |
| 01/24/2012 | US8101731 Yellow anionic disazo dyes |
| 01/24/2012 | CA2511582C 2-aryl-acetic acids, their derivatives and pharmaceutical compositions containing them |
| 01/18/2012 | EP1902004B1 Onium-alkylsulfonate production method |
| 01/18/2012 | CN202113620U Jetting type dioxane removing device for fatty alcohol polyoxyethylene ether sulfate |
| 01/18/2012 | CN102320997A Para-acetylsulfanilamide synthesis method combined with waste water treatment |
| 01/18/2012 | CN102320996A Method for preparing and purifying Silodosin intermediates |
| 01/18/2012 | CN102320995A Method for performing tubular continuous nitrification on naphthalene-2,7-disulfonic acid during production of H acid |
| 01/18/2012 | CN101208298B Hydrofluoroalkanesulfonic acids and salts from fluorovinyl ethers |
| 01/11/2012 | CN202107648U High-purity dimethyl sulfate batch rectifying device |
| 01/11/2012 | CN1788112B High purity electrolytic sulfonic acid solutions |
| 01/11/2012 | CN102311371A Compound, polymer comprising the same and chemically amplified resist composition comprising the polymer |
| 01/11/2012 | CN102311370A System for continuous production of sodium fatty acid methyl ester sulfonate with low disodium salt content |
| 01/11/2012 | CN102311369A Preparation method of 1-amino-2-(4-sulfonic acid azobenzene)-8-hydroxy-3,6-disulfonic acid |
| 01/11/2012 | CN102311368A Twin-type wetting agent as well as preparation method and application thereof |
| 01/11/2012 | CN102311367A Benzylamine derivative and application thereof in galanthamine synthesis |
| 01/11/2012 | CN102311366A Sulfonate filter residue recovery and treatment system |
| 01/11/2012 | CN101830854B Substituted phenylhydrazones compounds, preparation method and application thereof |
| 01/11/2012 | CN101690876B A novel amphoteric gemini surfactant and synthesizing method thereof |
| 01/11/2012 | CN101412687B Preparation of optically-active pure ibutilide fumarate |
| 01/11/2012 | CN101337915B Process for preparing 2,4-diamino benzenesulfonic acid and sodium salt thereof |
| 01/11/2012 | CN101314580B Enol sulfonic ester compounds and preparation thereof |
| 01/10/2012 | US8093424 Tetralin and indane derivatives and uses thereof |
| 01/05/2012 | US20120004413 Isotopically labeled chemically stable reagents and process for the synthesis thereof |
| 01/05/2012 | US20120004183 Unnatural reactive amino acid genetic code additions |
| 01/04/2012 | CN102307845A Process for preparing cinacalcet hydrochloride |