| 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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| 02/27/2013 | CN102180815B Process for producing benzene-m-disulfonic acid by using gas-phase sulfonation method |
| 02/27/2013 | CN101692063B Method for detecting process and end point of sulfur trioxide sulfonation |
| 02/27/2013 | CN101607926B Method for removing sodium sulfate and sodium chloride from lauryl sodium sulfate |
| 02/20/2013 | CN102936214A Method for clean preparation H acid |
| 02/20/2013 | CN102936213A Clean preparation method of 1, 8-dinitro-3, 6-naphthalenedisulfonic acid |
| 02/20/2013 | CN102936054A Method for separating naphthalene sulfonic acid, sulfuric acid and sulfurous acid from industrial wastewater |
| 02/19/2013 | US8377406 Synthesis of bis(fluorosulfonyl)imide |
| 02/14/2013 | WO2013021309A1 Intermediate and process for the preparation of a sulfonamide derivative |
| 02/14/2013 | US20130040397 Detection of hydrogen sulfide gas using carbon nanotube-based chemical sensors |
| 02/14/2013 | US20130039983 Process for the production of ralfinamide salts substantially free from impurities having genotoxic effects |
| 02/13/2013 | CN102924345A Preparation method and application of branched fluorine-containing cationic surfactant |
| 02/13/2013 | CN102924344A Synthesis and preparation method for probenecid sodium and probenecid potassium |
| 02/13/2013 | CN102924343A Preparation method of petroleum sulfonate for oil displacement |
| 02/13/2013 | CN102924342A Method for preparing alkylaryl sulfonate surfactant |
| 02/13/2013 | CN102924341A Salt, photoresist composition and method for producing photoresist pattern |
| 02/13/2013 | CN102924340A Preparation method for ion pair chromatography reagent nonane sodium sulfonate |
| 02/13/2013 | CN102921352A Pressurization density method production technique and device for controlling sulfonation rate in sulfonation production of anionic surfactant |
| 02/13/2013 | CN102921347A Preparation method and application of quaternary ammonium salt surfactant containing branch-type fluorocarbon chain |
| 02/13/2013 | CN102921346A Preparation method and application of fluorine-contained quaternary ammonium salt surfactant |
| 02/13/2013 | CN102920690A Chemical medicine for treating cerebral-cardio vascular diseases |
| 02/13/2013 | CN101735117B Preparation method of o-aminosulfonyl-benzoyl hydrazine |
| 02/13/2013 | CN101704771B Improved process for producing asulam |
| 02/13/2013 | CN101684405B Method for preparing gemini long-chain alkyl benzene sulfonate oil displacement agents |
| 02/07/2013 | WO2013018848A1 Fluoroalkanesulfonic acid production method |
| 02/07/2013 | WO2013018465A1 Method for producing geminal difluoro compound |
| 02/06/2013 | CN102918014A Method of manufacture and use of large hydrophobe ether sulfate surfactants in enhanced oil recovery (EOR) applications |
| 02/06/2013 | CN102911089A Method for preparing iron p-toluenesulfonate and solution thereof |
| 02/06/2013 | CN102911088A Preparation method for novel surfactant for soaping |
| 02/06/2013 | CN102911087A Preparation method of trifluoro methanesulfonic acid |
| 02/06/2013 | CN102911086A Preparation method of trifluoro methanesulfonic anhydride |
| 02/06/2013 | CN101711106B Pharmaceutical use of substituted amides |
| 02/06/2013 | CN101508660B Method of preparing alpha-sulphonic acid fatty acid ester |
| 02/06/2013 | CN101381328B Method of quantitative control of alkyl benzene material conversion yield in sulphonation process |
| 01/31/2013 | WO2013014267A1 General method for preparing fatty acyl amido based surfactants |
| 01/31/2013 | WO2013014265A1 Amino acid salt containing compositions |
| 01/31/2013 | US20130030198 General method for preparing fatty acyl amido based surfactants |
| 01/31/2013 | US20130030184 Isotopically labeled chemically stable reagents and process for the synthesis thereof |
| 01/31/2013 | US20130029991 New Phenylsulfamoyl Benzamide Derivatives as Bradykinin Antagonists |
| 01/31/2013 | US20130029249 Proton conducting materials |
| 01/31/2013 | DE102011052156A1 Lithium-2-methoxy-1,1,2,2-tetrafluor-ethansulfonat und dessen Verwendung als Leitsalz in Lithium-basierten Energiespeichern Lithium-2-methoxy-1,1,2,2-tetrafluoro-ethane sulfonate and its use as a conducting salt in lithium-based energy stores |
| 01/31/2013 | CA2839047A1 General method for preparing fatty acyl amido based surfactants |
| 01/30/2013 | CN102906068A Process for preparation of fluorine-containing imide compounds |
| 01/30/2013 | CN102898437A Acid-addition salt of Prasugrel, preparation method and application |
| 01/30/2013 | CN102898336A Preparation method of tamsulosin hydrochloride |
| 01/30/2013 | CN102898335A Method for preparing 1-substituted taurine |
| 01/30/2013 | CN102898284A 3-allyl-[1,1'-biphenyl]-4-phenol, derivatives, preparation methods and uses thereof |
| 01/24/2013 | WO2013011485A1 Process for the preparation of sulfonamides useful as retroviral protease inhibitors |
| 01/24/2013 | WO2013010502A1 Acid addition salt of prasugrel, preparation method therefor and use thereof |
| 01/23/2013 | CN202683195U Device for producing dimethyl sulfate |
| 01/23/2013 | CN102887873A Ionic liquids with surface active function and preparation method for ionic liquids |
| 01/23/2013 | CN102887855A Pyridine-ion-containing liquid, preparation method and application thereof |
| 01/23/2013 | CN102887850A Pyridine-ion-containing liquid, preparation method and application thereof |
| 01/23/2013 | CN102887841A Preparation method of compound dansyl chloride |
| 01/23/2013 | CN102887840A Method for preparing low-water-content solid methyl disulfonic acid through taking methylene chloride as raw material |
| 01/23/2013 | CN102887836A L-phenylglycine derivative and application thereof |
| 01/23/2013 | CN102887827A Ionic liquid of quaternary ammonium salt, preparation method thereof and application thereof |
| 01/23/2013 | CN102030688B Method for preparing monosodium sulfosuccinate |
| 01/23/2013 | CN101085754B Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives |
| 01/22/2013 | CA2550631C Process for producing phenyl-alkanes using olefin isomerization and paraffin recycle |
| 01/17/2013 | US20130018207 Frustrated Lewis Pair Compositions |
| 01/17/2013 | US20130018204 Edge-functionalized graphitic material through mechanochemical process and manufacturing method thereof |
| 01/16/2013 | CN102875428A Method for performing ring-opening for cyclohexylaziridine by carboxylic acid |
| 01/16/2013 | CN102875427A Synthetic method of 2-methoxy methylmesylate |
| 01/16/2013 | CN102875426A Preparation method of compound dansyl acid |
| 01/16/2013 | CN102875425A Preparation method of low-temperature oxidizing assistant |
| 01/16/2013 | CN102875424A Synthetic method of double-straight chain tetradecyl diphenylmethane bisulfonate |
| 01/16/2013 | CN102875423A Preparation method of novel surfactant alkanolamide sulfosuccinate |
| 01/16/2013 | CN102875422A New synthesis method of N-acyl-N-methyltaurine |
| 01/16/2013 | CN102875421A Aziridine compound loop opening method based on p-nitrobenzoic acid |
| 01/16/2013 | CN102875047A Polycarboxylic high-efficiency water reducing agent and preparation method thereof |
| 01/16/2013 | CN102872751A Sulfonic acid dimeric surfactant based on perfluoroolefine and preparation method thereof |
| 01/16/2013 | CN101817766B Method for preparing m-aminobenzenesulfonic acid by catalyzing and hydrogenating 3-nitrobenzenesulfonic acid |
| 01/09/2013 | EP2543662A1 Process for preparation of alkyl methanesulfonate solution |
| 01/09/2013 | EP2542522A1 Method for producing 5-chlorobenzene sulphonic acid and 4,4'-dichlorodiphenylsulphone |
| 01/09/2013 | CN102866585A Novel compound and method of producing the same, acid generator, resist composition and method of forming resist |
| 01/09/2013 | CN102863948A Hydroxysulfobetaine amphoteric surfactant for flooding and preparation method of hydroxysulfobetaine amphoteric surfactant |
| 01/09/2013 | CN102863053A Treatment and resource recovery method for treating rinsing wastewater in production process of 2-naphthylamine-3,6,8-trisulfonic acid |
| 01/09/2013 | CN102050785B Imidazoline ionic liquid and preparation method and application thereof |
| 01/09/2013 | CN101928239B Method for preparing calcium sulfonate with high base number |
| 01/09/2013 | CN101624357B Method for producing 2-hydroxyl-4-methoxybenzophenone-5-sulfonic acid |
| 01/09/2013 | CN101228117B Fluorosulfonyl group-containing compound, method for production and polymer thereof |
| 01/08/2013 | US8349502 Additive for non-aqueous electrolyte and secondary battery using the same |
| 01/08/2013 | CA2525064C High purity electrolytic sulfonic acid solutions |
| 01/03/2013 | WO2013002040A1 Process for producing fluorosulfuric acid aromatic-ring esters |
| 01/03/2013 | WO2013000315A1 Guaiazulene derivative, preparation method and use thereof |
| 01/03/2013 | US20130005997 Preparation of 2,2-bis (fluoroalkyl) oxirane and preparation of photoacid generator therefrom |
| 01/03/2013 | US20130005735 Organic compounds |
| 01/02/2013 | CN102850284A An azoic compound, and its preparation method, intermediate and application |
| 01/02/2013 | CN102850244A Preparation method for 3-(3-phenylsulfamoyl-phenyl)-acrylic acid |
| 01/02/2013 | CN102849883A Technology for treating SIPM waste water recovered material |
| 01/02/2013 | CN102180873B Functional ionic liquid and preparation method thereof |
| 01/02/2013 | CN102161635B Photoactive compound |
| 01/02/2013 | CN101747245B Method for preparing N, N-diethyl trifluoro-methanesulfonyl fluoride CF3SO2N (C2H5)2 by using trifluoro-methanesulfonyl fluoride |
| 01/02/2013 | CN101654229B Method for preparing fluorine-containing sulphonyl (phosphoryl) imine and alkali metal salt thereof |
| 01/02/2013 | CN101624358B Preparation method of sulfamate water reducing agent |
| 01/01/2013 | US8344180 Hydrazine amide derivative |
| 12/27/2012 | WO2012175935A1 Composition comprising fatty acyl isethionate and synthetic wax and method producing the same |
| 12/27/2012 | WO2012174926A1 N-substituted isopropyldimethyl azulene sulfonamide derivatives, and preparation method and use thereof |
| 12/27/2012 | WO2012147037A3 Sustainable chemical process for isolation of naphthalene sulphonic acid compounds with inherent recycle of all acidic streams generated during isolation and washing |
| 12/27/2012 | US20120330054 Method and apparatus for continuous sulfonization of discrete article |