| 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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| 04/17/2013 | CN101956030B Method for preparing succinic acid sulphonated fat-liquoring agent |
| 04/17/2013 | CN101947424B Hybrid vaporizer and application thereof in preparation of sulfonated or sulfated product from liquid sulfur trioxide |
| 04/17/2013 | CN101671285B Preparation method of dibenzenesulfonimide |
| 04/17/2013 | CN101326158B Method for producing purified formylcyclopropane compound and intermediate of such formylcyclopropane compound |
| 04/16/2013 | US8420846 Process for producing (S)-3-[(1-dimethylamino)ethyl] phenyl-N-ethyl-N-methyl-carbamate via novel intermediates |
| 04/10/2013 | EP2578567A1 Process for preparation of fluorine-containing imide compounds |
| 04/10/2013 | EP2576975A1 Sulfonated internal olefin surfactant for enhanced oil recovery |
| 04/10/2013 | CN103030966A Preparation method of high-efficiency penetrant for PU synthetic leather |
| 04/10/2013 | CN103030579A Double-dansyl compound and preparation method thereof, application of double-dansyl compound serving as mercury ion fluorescent probe and method for detecting concentration of mercury ions |
| 04/10/2013 | CN103030578A Preparation method of petroleum sodium sulfonate air entraining agent |
| 04/10/2013 | CN102037111B Alpha-sulfo fatty acid alkyl ester salt solid including bubbles and production method thereof |
| 04/10/2013 | CN101781237B Method for refining J acid by using multi-functional integrated device |
| 04/09/2013 | US8415468 Process for the synthesis of ivabradine and addition salts thereof with a pharmaceutically acceptable acid |
| 04/04/2013 | WO2013047162A1 Method for producing chloroalkylsulfonyl chloride |
| 04/03/2013 | CN202844650U Water-cutting separation position control device during production of petroleum sulfonate |
| 04/03/2013 | CN103012224A Production process of medicinal sulphaguanidine |
| 04/03/2013 | CN103012223A Method of recovering waste slag in quinacridone production course to prepare 2,2'-disulfonic acid ethyl benzidine |
| 04/03/2013 | CN103012222A Method for preparing naphthalene-based high efficient water reducing agent |
| 04/03/2013 | CN103012221A Preparation method of benzene sulfonic amide derivatives |
| 04/03/2013 | CN103012220A Method for preparing powdery Alpha-olefin sulfonate and preparation device |
| 04/03/2013 | CN103012214A Method for preparing nafamostat hydrochloride and nafamostat mesylate |
| 04/03/2013 | CN103012189A Amide compound with anti-platelet aggregation function, and preparation and application of amide compound |
| 04/03/2013 | CN103012087A Green synthetic method of alpha, alpha'-double benzylidene cycloalkanone compound |
| 04/03/2013 | CN103012055A Water-solubility and alcohol solubility multi-armed structural material and preparation and application method thereof |
| 04/03/2013 | CN103007813A Preparation method and applications of fluorine-containing anionic surfactant |
| 04/03/2013 | CN103007812A Preparation method of sulfate surfactant containing fluoride anion and use thereof |
| 04/03/2013 | CN102584642B Preparation method for ethoxyl sodium sulfonate fatty acid ester |
| 04/03/2013 | CN102086163B Preparation method and application of high temperature and high salinity stabilizer for drilling fluid |
| 04/03/2013 | CN101585788B Allyl sulfonamides compound, preparation method and application thereof |
| 04/03/2013 | CN101263110B Optically active diamine derivative and process for producing the same |
| 03/28/2013 | WO2013040985A1 Sulfonic acid group-containing polymer, sulfonic acid group-containing aromatic compound and method of making the same, as well as polymer electrolyte material, polymer electrolyte molded product and solid polymer fuel cell using the same |
| 03/28/2013 | WO2013040768A1 Method of making sulfonic group-containing aromatic compound |
| 03/28/2013 | CA2849026A1 Sulfonic acid group-containing polymer, sulfonic acid group-containing aromatic compound and method of making the same, as well as polymer electrolyte material, polymer electrolyte molded product and solid polymer fuel cell using the same |
| 03/27/2013 | CN202829888U Sulfoacid homogenizing hydrolyzing system |
| 03/27/2013 | CN102993120A Morpholine-containing ionic liquid and preparation method thereof as well as electrolyte and application thereof |
| 03/27/2013 | CN102993119A Imidazole-containing ionic liquid and preparation method thereof, and electrolyte and application thereof |
| 03/27/2013 | CN102993118A Piperidine-containing ionic liquid and preparation method thereof, and electrolyte and application thereof |
| 03/27/2013 | CN102993083A Preparation method of amlodipine besylate |
| 03/27/2013 | CN102993063A Preparation method of isophthalic acid-5-sodium sulfonate |
| 03/27/2013 | CN102993062A Preparation method for producing 1,6-sodium naphthalenedisulfonate by use of 2-naphthalene sulfonic acid reaction mother liquid |
| 03/27/2013 | CN102993061A Preparation method of 2,7-sodium naphthalenedisulfonate product using transforming production of 1,6-naphthalenedisulfonic mother liquid |
| 03/27/2013 | CN102993060A Preparation method of 1,6-naphthalenedisulfonic acid disodium salt |
| 03/27/2013 | CN102993059A Preparation method of N, N-dimethyl-N-fatty alcohol-polyoxyethylene ether hydroxypropyl sulpho glycine betaine |
| 03/27/2013 | CN102993058A Preparation method and application of fluorine-containing benzamido sulfate anionic surfactant |
| 03/27/2013 | CN102030655B Synthesis method of diphenyl ether derivate, combined production method of oxyfluorfen and acifluorfen and synthesis method of oxyfluorfen |
| 03/27/2013 | CN101374806B Method for producing methionine from homoserine |
| 03/21/2013 | WO2013039584A1 Conversion of sulfuric acid alkylation units for ionic liquid catalyzed alkylation processes |
| 03/21/2013 | US20130072504 Crystalline forms of a purine derivative |
| 03/21/2013 | US20130068457 Method of Manufacture of Guerbet Alcohols For Making Surfactants Used In Petroleum Industry Operations |
| 03/21/2013 | CA2848180A1 Conversion of sulfuric acid alkylation units for ionic liquid catalyzed alkylation processes |
| 03/20/2013 | EP2570416A1 Antiviral bisfuran derivative as hiv protease inhibitor and intermediates thereof |
| 03/20/2013 | CN102976981A Preparation method and application of fluorine-containing quaternary ammonium salt type cationic surfactant |
| 03/20/2013 | CN102976980A Probenecid purification method |
| 03/20/2013 | CN102976979A Preparation method of water-soluble probenecid salt |
| 03/20/2013 | CN102974268A Alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use |
| 03/20/2013 | CN102974266A Preparation method and application of flursulamid-containing sulfate anionic surfactant |
| 03/20/2013 | CN102974265A Preparation method and application of fluorooxa-containing sulfate type anionic surfactant |
| 03/20/2013 | CN102357093B Medicinal composition of methanesulfonic acid arbidol oral solid preparation |
| 03/20/2013 | CN101573331B Process for producing vinylsulfonic acid |
| 03/20/2013 | CN101570501B Method for synthesizing p-nitrobenzenesulfonyl chloride |
| 03/20/2013 | CN101362710B Method for preparing aminobenzenesulfonic acid by catalytic hydrogenation |
| 03/19/2013 | US8399709 Method for the sulfonylation of a hydroxylated organic compound |
| 03/14/2013 | US20130066110 Method for manufacturing fluorine-containing imide compound |
| 03/14/2013 | US20130065182 Fluorine-Containing Sulfonate, Fluorine-Containing Sulfonate Resin, Resist Composition and Pattern Formation Method |
| 03/13/2013 | CN102964349A Tosilate of benzodiazepine derivative, its crystal forms, their preparation method and application |
| 03/13/2013 | CN102964293A Preparation method of 4-(4-dimethylaminostyryl)methylpyridyl p-toluenesulfonate |
| 03/13/2013 | CN102964280A Preparation method of toluenesulfonylurea |
| 03/13/2013 | CN102964278A Method for preparing CLT acid (2-amino-4-methyl-5-chlorobenzene sulfonic acid) by continuous catalytic hydrogenation reduction |
| 03/13/2013 | CN102964277A Preparation method of N,N-dimethyl-N-fatty alcohol polyethenoxy ether-base sulfopropyl lycine |
| 03/13/2013 | CN102964276A Preparation method of sodium new houttuyfonate |
| 03/13/2013 | CN102964267A Cyclohexene compound having influenza virus neuraminidase inhibition activity, preparation method and application |
| 03/13/2013 | CN102161637B Photoactive compound |
| 03/13/2013 | CN101607925B Method for preparing naphthalene sulphonic acid by sulfonating sulfur trioxide in microreactor |
| 03/07/2013 | WO2013033022A2 5-sulfoisophthalic acid salts and process for the preparation thereof |
| 03/07/2013 | WO2013031849A1 Method for producing organic compound having sulfo group, method for producing liquid composition, and method for hydrolytically treating organic compound having fluorosulfonyl group |
| 03/07/2013 | WO2013030035A1 Process for preparing sulfates and/or sulfonates in a micro-reaction system |
| 03/07/2013 | WO2013029431A1 Benzodiazepine derivatives tosylate salts, their polymorphic forms, preparation methods and uses thereof |
| 03/07/2013 | WO2013003011A3 Improved aromatics-recovery process |
| 03/07/2013 | CA2846583A1 5-sulfoisophthalic acid salts and process for the preparation thereof |
| 03/07/2013 | CA2843817A1 Process for preparing sulfates and/or sulfonates in a micro-reaction system |
| 03/06/2013 | EP2565181A1 Process for preparing sulfates and/or sulfonates in a micro-reaction system |
| 03/06/2013 | CN102952531A Surfactant for displacing oil of offshore oilfield and preparation method thereof |
| 03/06/2013 | CN102952116A Double-centre nicotine ionic liquid, and preparation method and application thereof |
| 03/06/2013 | CN102952099A Pyrrole ionic liquid, and preparation method and application thereof |
| 03/06/2013 | CN102952098A Pyrazine ionic liquid, and preparation method and application thereof |
| 03/06/2013 | CN102952058A Maleimide ionic liquid, and preparation method and application thereof |
| 03/06/2013 | CN102952053A Salt, photoresist composition and method for producing photoresist pattern |
| 03/06/2013 | CN102952052A Synthesis method of 2-acrylamide-2-methylpropanesulfonic acid (AMPS) |
| 03/06/2013 | CN102952051A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and refining method thereof |
| 03/06/2013 | CN102952050A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and refining method thereof |
| 03/06/2013 | CN102952049A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and refining method thereof |
| 03/06/2013 | CN102952048A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) crude product and refining method thereof |
| 03/06/2013 | CN102952047A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) crude product and refining method thereof |
| 03/06/2013 | CN102952046A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) crude product and refining method thereof |
| 03/06/2013 | CN102952045A 2-acrylamide-2-methylpropanesulfonic acid (AMPS) crude product and refining method thereof |
| 03/06/2013 | CN102952044A Synthesis method of 2-acrylamide-2-methylpropanesulfonic acid (AMPS) |
| 03/06/2013 | CN102952043A Synthesis method of tert-butyl acrylamide sulfonate |
| 03/06/2013 | CN101914043B Method for synchronously extracting and preparing taurine, biological zinc and polypeptide from oysters |
| 02/27/2013 | CN102942642A Preparation method and application for heterogeneous olefin polymerization catalyst |
| 02/27/2013 | CN102942509A Synthetic method of etamsylate |