| 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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| 06/28/2012 | CA2819088A1 Process simplification for precursor compound |
| 06/27/2012 | CN102516970A Modified lycine ampholytic surfactant for tertiary oil recovery and preparation method thereof |
| 06/27/2012 | CN102516525A Method for preparing phosphorus-free corrosion-inhibition scale inhibitor in high-elevation region and application of the phosphorus-free corrosion-inhibition scale inhibitor |
| 06/27/2012 | CN102516259A Process for preparation of HIV protease inhibitors |
| 06/27/2012 | CN102516141A Labeling method for hydroxytamine transporter imaging agent [<18>F]-FPBM |
| 06/27/2012 | CN102516137A Production method of 2, |
| 06/27/2012 | CN102516136A Method for preparing 4,4 '- diaminostilbene- 2,2' - disulfonic acid by using DNS sodium salt(4,4 '- dinitrostilbene-2,2' - disulfonic acid sodium salt) |
| 06/27/2012 | CN102516135A Method for preparing tin methanesulfonate through using methanesulfonyl chloride |
| 06/27/2012 | CN102516134A Process for hydrolyzing alpha-olefin sulfonate and system for hydrolyzing alpha-olefin sulfonate |
| 06/27/2012 | CN102516133A Preparation method of methanesulfonic acid derivative |
| 06/27/2012 | CN102516132A Production method for sulfonic acid curing agent used for casting |
| 06/27/2012 | CN102516076A Method for preparing saturated palmitic acid methyl ester and fatty acid methyl ester sulfonate from palm tristearin |
| 06/27/2012 | CN102515387A Method for treating organic wastewater |
| 06/27/2012 | CN102515384A Technology for turning wastewater of melamine resin production into resource |
| 06/27/2012 | CN102134181B Nicosulfuron production wastewater pretreatment method |
| 06/27/2012 | CN101955580B Plasticizer for improving polylactic acid by mixing with polylactic acid and preparation method thereof |
| 06/27/2012 | CN101723862B Preparation method of wool purple reactive dye |
| 06/27/2012 | CN101717353B Synthesis method of taurine |
| 06/27/2012 | CN101492399B Method for preparing methylpropene sodium sulfonate |
| 06/26/2012 | US8207378 Trypsin-like serine protease inhibitors, and their preparation and use |
| 06/20/2012 | EP2464626A1 Methods, compounds, and compositions for delivering 1,3-propan ed isulfonic acid |
| 06/20/2012 | CN102504247A Hyperbranched polymer, hyperbranched polycarboxylic acid-series super plasticizer and preparation method thereof |
| 06/20/2012 | CN102503912A High epoxide number environment-friendly plasticizer production process |
| 06/20/2012 | CN102503876A Bisamide derivative, preparation method for same and application thereof |
| 06/20/2012 | CN102503866A Method for preparing sodium fatty acid methyl ester sulfonate with low content of disodium salt |
| 06/20/2012 | CN102503865A Method for recycling sulfur trioxide and efficiently producing sulfonic acid |
| 06/20/2012 | CN102503864A Method for synthesizing low-salt fatty acid amide propyl hydroxy sulfobetaine |
| 06/20/2012 | CN102503863A Dialkyl ether disulfonate surfactant and preparation method thereof |
| 06/20/2012 | CN102503862A Method for synthesizing sulfuric acid amino ethyl ester |
| 06/20/2012 | CN102503861A Ring opening method of propane diacid and diethyl ester double N-heterocyclic propane compound |
| 06/20/2012 | CN102503841A Ethoxylate ester quaternary ammonium salt and its preparation method |
| 06/20/2012 | CN102500395A TiO2-loaded Ni-Au-Pt nanometer composite metal catalyst and preparation method and application |
| 06/20/2012 | CN101395196B Polyarylene and method for producing the same |
| 06/14/2012 | WO2012078521A1 Process for reducing inorganics from anionic surfactant solutions |
| 06/14/2012 | US20120149903 Process for preparing and purifying 3-aminopropanol |
| 06/13/2012 | EP2463266A1 Process for production of bis-quaternary ammonium salt, and novel intermediate |
| 06/13/2012 | EP2462111A1 Preparation of (r)- and (s)-n-(3, 4-difluoro-2-(2-fluoro-4-iodophenylamino)--6-methoxyphenyl) -1- (2, 3-dihydroxypropyl)cyclopropane-1-sulfonamide and protected derivatives thereof |
| 06/13/2012 | CN102491924A Preparation method for N-(2- chlorine-4-phenyl)-4- chlorine-3-trifluoromethyl benzene sulfonamide |
| 06/13/2012 | CN102491923A Method for continuous chemosynthesis of perfluoro surfactant with water as solvent |
| 06/13/2012 | CN102491922A Bishydroxyl sulfoacid betaine surface active agent and synthesis method thereof |
| 06/13/2012 | CN102491921A Preparation method for 4-guanidinozoic acid (4-methoxycarbonyl)-phenyl ester monomesylate |
| 06/13/2012 | CN102491575A Method for performing comprehensive treatment by utilizing waste water from production of ternary monomer |
| 06/13/2012 | CN102489216A Preparation method and application of amphoteric fluorinion-containing ionic surfactant |
| 06/13/2012 | CN101475514B Process for synthesizing ryzalin by trichloromethyl carbonate method |
| 06/13/2012 | CN101456830B Methods of making an antistatic agent |
| 06/13/2012 | CN101336124B Anion-exchange displacement chromatography process and anionic organic compounds for use as displacer compounds in anion-exchange displacement chromatography |
| 06/07/2012 | WO2012073249A1 A novel process for the preparation of 3-(benzyloxy)- benzenethiol, a key intermediate for the preparation of pharmaceutical drugs. |
| 06/06/2012 | EP2460789A1 Method for producing biaryl compound |
| 06/06/2012 | EP2459523A2 Improved process for the sulfochlorination of hydrocarbons |
| 06/06/2012 | CN102485718A Sitagliptin intermediate and its preparation method |
| 06/06/2012 | CN101787024B Quinoline |
| 06/06/2012 | CN101279940B Preparation of isophthalic acid-5-sulfonic acid, ester, salt and ester salt thereof |
| 06/05/2012 | US8193389 N-substituted benzene sulfonamides |
| 05/31/2012 | WO2012070793A2 Improved method for purifying sulfonated aromatic monomer |
| 05/31/2012 | WO2012069004A1 Synthesis and application of intermediate of tapentadol |
| 05/31/2012 | US20120136164 Nanostructured metals |
| 05/31/2012 | US20120132564 Process for removing organic acids from crude oil and crude oil distillates |
| 05/30/2012 | EP2457886A1 Sulfonation in continuous-flow microreactors |
| 05/30/2012 | CN202246489U System for continuously producing sodium fatty acid methyl ester sulfonate with low disodium salt |
| 05/30/2012 | CN1659154B Method of preparing amine stereoisomers |
| 05/30/2012 | CN102482401A 联苯四磺酸化合物、其制造方法、聚合物和高分子电解质 Biphenyl tetracarboxylic acid compounds, a manufacturing method thereof, a polymer and a polymer electrolyte |
| 05/30/2012 | CN102482207A 双磺酰亚胺基铵盐、双磺酰亚胺以及双磺酰亚胺基锂盐的制造方法 Bis sulfonimide ammonium salts, bis-sulfonylimide, and a method of manufacturing a lithium salt of a bis-sulfonimide group of |
| 05/30/2012 | CN102482206A 在合成多氟代磺酰氨基胺中用作中间体的多氟代磺酰氨酰胺 As intermediates in the synthesis of polyfluorinated sulfonamido polyfluorinated amine sulfonamide amide |
| 05/30/2012 | CN102482197A 双季铵盐的制造法和新颖中间体 Double quaternary ammonium salts and novel intermediates manufacturing method |
| 05/30/2012 | CN102477016A 他喷他多的中间体的合成与应用 Tapentadol intermediates Synthesis and Application |
| 05/30/2012 | CN102477005A 一种酸液稠化剂合成工艺中的amps单体提纯方法 One kind of acid thickener synthesis process amps monomer purification method |
| 05/30/2012 | CN102477004A 一种利用超滤技术从牡蛎中提取天然牛磺酸的方法 An oyster extract natural taurine from utilizing ultrafiltration method |
| 05/30/2012 | CN102093263B Recycling method of levorotation camphorsulfonic acid serving as clopidogrel resolving agent |
| 05/30/2012 | CN101407482B Intermediate for synthesizing butene liquid crystal and synthetic method thereof |
| 05/29/2012 | US8188269 Functionalized compositions for improved immobilization |
| 05/29/2012 | CA2530375C Process for preparing acylsulfamoylbenzamides |
| 05/24/2012 | US20120130107 Process for production of bis-quaternary ammonium salt, and novel intermediate |
| 05/23/2012 | EP2455811A1 Sulfonium salt-containing polymer, resist composition, patterning process, and sulfonium salt monomer and making method |
| 05/23/2012 | CN102471248A 用于递送1，3-丙二磺酸的方法、化合物和组合物 Methods for the delivery of 1,3-propanediol acid, the compounds and compositions |
| 05/23/2012 | CN102471246A Preparation of (R)- and (S)-N-(3, 4-difluoro-2-(2-fluoro-4-iodophenylamino)--6-methoxyphenyl) -1- (2, 3-dihydroxypropyl)cyclopropane-1-sulfonamide and protected derivatives thereof |
| 05/23/2012 | CN102471245A 用于烃的磺基氯化作用的改善方法 A method for improving the action of a hydrocarbon sulfonic acid chloride groups |
| 05/23/2012 | CN102464974A Composition capable of greatly improving crude oil recovery efficiency and preparation method thereof |
| 05/23/2012 | CN102464797A Enether monomer, water-soluble thermothickening copolymer, preparation method, application thereof |
| 05/23/2012 | CN102464598A 脂肪酸酰胺聚氧乙烯醚苯磺酸盐及其制备方法 Polyoxyethylene fatty acid amide sulfonate and preparation method |
| 05/23/2012 | CN102464597A Method for sulfonating naphthalene |
| 05/23/2012 | CN102464589A 雷沙吉兰、其甲磺酸盐及其中间体的制备方法 Rasagiline, its preparation and its intermediate mesylate |
| 05/23/2012 | CN102050764B Method for purifying sodium hydroxyethyl sulphonate |
| 05/23/2012 | CN101585786B Method of using SO<3>-air mixture to produce alkylphenol sulfonic acid and salts thereof via film sulfonator sulfonated alkylphenol |
| 05/23/2012 | CN101544583B Method for preparing (Z)-4-(2-bromovinyl) benzene sulfonate phenolic ester |
| 05/23/2012 | CN101531614B Method for preparing aromatic hydroxylamine through selective hydrogenation of aromatic nitro compound with nano Pt/C catalyst |
| 05/23/2012 | CN101475507B Fluorinated acrylate, preparation method and preparation of copolymer thereof |
| 05/23/2012 | CN101314581B N-sulfuryl ketimine compounds and preparation method thereof |
| 05/22/2012 | US8183420 Preparation of alkylaromatic hydrocarbons and alkylaryl sulfonates |
| 05/17/2012 | US20120123142 Process for hydrogenating ketones in the presence of ru(ii) catalysts |
| 05/17/2012 | US20120123026 Functionalized compositions for improved immobilization |
| 05/16/2012 | EP2451777A1 Polyfluorosulfonamido amides useful as intermediates in the synthesis of polyfluorosulfonamido amines |
| 05/16/2012 | CN1854128B Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 05/16/2012 | CN102452966A Alkylbenzene sulfonate Gemini surfactant and preparation method thereof |
| 05/16/2012 | CN102452965A Method for removing polymerization inhibitor in AMPS (2-acrylamide-2-methyl propanesulfonic acid) raw material |
| 05/16/2012 | CN102452964A Amphipathic polymerizable monomer and amphipathic tackifying copolymer and preparation method and application thereof |
| 05/16/2012 | CN102452963A Production method for 2-acrylamide-2-methylpro panesulfonic acid |
| 05/16/2012 | CN102452962A Synthetic method of AMPS (2-Acrylamide-2-methylpropanesulfonic acid) |
| 05/16/2012 | CN102452961A Diallyl monomer and polymer thereof and preparation method thereof |
| 05/16/2012 | CN102452867A Method for preparing aryl acetonitrile compound |
| 05/10/2012 | WO2012059436A2 Phenyl-substituted bicyclooctane-1,3-dione-derivatives |