Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 303 - Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
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)
11/2012
11/07/2012CN102766076A Synthesis process of racemic phenyl ethanesulfonic acid
11/07/2012CN102766075A Double-acid-level contained quaternary ammonium salt ionic liquid and preparation method thereof
11/07/2012CN102432508B Synthetic method of 3-amino propane sulfonic acid
11/07/2012CN101830836B Method for manufacturing pigment red 3BL condensation intermediate
11/01/2012WO2012148624A1 Synthesis of hydroxyalkyl amides from esters
11/01/2012WO2012147944A1 Method for producing diamine compound
11/01/2012WO2012147037A2 Sustainable chemical process for isolation of naphthalene sulphonic acid compounds with inherent recycle of all acidic streams generated during isolation and washing
11/01/2012US20120277444 Synthesis of hydroxyalkyl amides from esters
11/01/2012US20120277332 Organic superacid monomers containing a bis-sulfonic acid group and methods of making and using the same
11/01/2012CA2829971A1 Method for producing diamine compound
10/2012
10/31/2012EP2516388A2 Isomerized alpha olefin sulfonate and method of making the same
10/31/2012CN102757370A Derivatives of p-aminobenzoic acid and applications thereof
10/31/2012CN102757369A Preparation method of high-purity 8-anilino-1-naphthalene sulfonic acid and its salt
10/31/2012CN102757368A Refining method of 2-hydroxy-3,7-maphthalene sodium disulfonate
10/31/2012CN102757367A Splitting process of racemic ethyl benzene sulfonic acid
10/31/2012CN101550097B Preparation method of 5-chlorosulfonyl isophthaloyl acid chloride
10/31/2012CN101466664B Method for preparing metallic dixhydroxybenzenedisulfonates
10/30/2012US8299289 Isomerized alpha olefin sulfonate and method of making the same
10/26/2012WO2012142927A1 Method for purification of calcium channel blockers of dihydropyridine type and preparation of nanoparticles thereof
10/25/2012US20120271049 Bifunctional phenyl iso (thio) cyanates, processes and intermediates products for their preparation
10/25/2012US20120270764 Sulfomethylsuccinates, process for making same and compositions containing same
10/25/2012US20120269804 Substituted benzosulphonamides
10/25/2012US20120269803 Substituted benzosulphonamides
10/24/2012CN102749805A Photoresist composition and method for producing photoresist pattern
10/24/2012CN102746217A Method for purifying dihydropyridine calcium channel retarder and preparing nanoparticles thereof
10/24/2012CN102746200A Synthesis method of alkyl disulfonate
10/24/2012CN102746199A Method for recovering paratoluensulfonyl chloride from waste water generated by producing aryloxy phenoxy propionic acid herbicide
10/24/2012CN102746198A Method for preparing leather fat-liquoring agent
10/24/2012CN102746197A Preparation method of suramin sodium
10/24/2012CN102746196A Sulfonating technique for producing dye dispersant MF (melamine-formaldehyde)
10/24/2012CN102746195A Method for improving sulfonation process of naphthalene-based water reducer
10/24/2012CN102746078A Preparation method for organic sulfonic acid compound
10/24/2012CN102746077A Method for preparing amide compound
10/24/2012CN102745824A Environment-friendly type water-processing corrosion and scale inhibitor and preparation method thereof
10/24/2012CN102037542B Cleaning solution for substrate for semiconductor device
10/23/2012US8293513 Histone deacetylase inhibitors
10/23/2012CA2556766C Synthesis of sterically hindered secondary aminoether alcohols
10/18/2012US20120264158 Anionic acid-labile surfactants and methods of use
10/18/2012US20120264157 Anionic acid-labile surfactants and methods of use
10/18/2012US20120263714 Substituted halophenoxybenzamide derivatives
10/17/2012CN102741457A Process for producing perfluorobutanesulfonic acid salt
10/17/2012CN102731512A Preparation method of lurasidone intermediate and lurasidone
10/17/2012CN102731348A Bisperfluoroalkylsulfonylimino-ethyl acrylate monomer and preparation method thereof
10/17/2012CN102731347A Salt, photoresist composition, and method for producing photoresist pattern
10/17/2012CN102731346A Salt, photoresist composition, and method for producing photoresist pattern
10/11/2012WO2012137813A1 Method for producing bis(perfluoroalkanesulfone)imide salt
10/11/2012WO2012136761A1 Process for the preparation of a sulfated derivative of 3,5-diiodo-o-[3-iodophenyl]-l-tyrosine
10/11/2012US20120259136 Method for cooling liquid
10/11/2012US20120258399 Radiation-sensitive resin composition, compound and producing method of compound
10/11/2012CA2831697A1 Process for the preparation of a sulfated derivative of 3,5-diiodo-o-[3-iodophenyl]-l-tyrosine
10/10/2012EP2507208A2 Highly overbased magnesium alkyltoluene sulfonates
10/10/2012CN102718688A Method for preparing 2B acid
10/10/2012CN102718687A Method for preparing 4B acid
10/10/2012CN102718686A N, N'-di(alpha-carboxylic acid ester group) sulfamide compound and preparation method and application
10/10/2012CN102219897B Disulfonate gemini surfactant with high temperature and salt resistance and preparation method thereof
10/10/2012CN102174185B Synthesis technology of hydroxyl terminated polyepichlorohydrin
10/09/2012US8283491 Isomerized alpha olefin sulfonate and method of making the same
10/09/2012US8283104 Sulfonate and its derivative, photosensitive acid generator, and resist composition and patterning process using the same
10/04/2012WO2012134464A1 Improved method for the preparation of low overbased alkyltoluene sulfonate
10/04/2012WO2012132269A1 Diamine compound containing sulfonic acid group, and method for producing same
10/04/2012US20120252784 2,3,4-benzothiadiazepine-2,2-dioxide derivatives
10/04/2012CA2829087A1 Improved method for the preparation of low overbased alkyltoluene sulfonate
10/03/2012EP2505551A1 Fluorosulfonyl imide salt and method for producing fluorosulfonyl imide salt
10/03/2012CN102703050A Tetra-polysulfonate type surfactant and preparation method thereof
10/03/2012CN102702198A Caffeine methylated mother liquor cleaning process and device thereof
10/03/2012CN102702190A Berberine electrostatic composite and preparation method of berberine electrostatic composite
10/03/2012CN102702043A Method for preparing CLT acid (6-chloro-3-nitrotoluene-4-sulfonic acid) by continuous hydrogenation reduction of 6-chloro-3-nitrotoluene-4-sulfonicacid liquid phase
10/03/2012CN102702042A Method for preparing CLT acid by using liquid-phase 6-chloro-3-nitrotoluene-4-sulfonic acid (CLT) in continuous hydrogenation reduction process
10/03/2012CN102702041A Agomelatine benzenesulfonic acid compound and preparation method thereof
10/03/2012CN102702040A Method for preparing high-purity docusate sodium
10/03/2012CN102702039A Process for synthesizing beta-alanyl-taurine
10/03/2012CN102702038A Method for extracting natural taurine from nori
10/03/2012CN102702037A Method for preparing ethylenediamino ethyl sulfonate
10/03/2012CN102702035A Method for continuously preparing fluorinated vinyl ether
10/03/2012CN102701989A Method for removing nitrosamine from dinitroaniline herbicides
10/03/2012CN102698743A Catalyst for liquid-phase hydrogenation reduction reaction of 6-chloro-3-nitrotoluene-4-sulfonic acid (CLT acid) and method for preparing same
10/03/2012CN102698742A Catalyst for liquid-phase hydrogenation reduction reaction of 6-chloro-3-nitrotoluene-4-sulfonic acid (CLT acid) and method for preparing same
10/03/2012CN102698648A Dendritic sulfonate-type tetramer surfactant and preparation method thereof
10/03/2012CN102127021B Preparation method of water-soluble amino acid-derived bisbenzimidazole salt
10/03/2012CN101973940B Continuously synthesizing method of sulfonic acid alkyl group ionic liquid
09/2012
09/27/2012WO2012126630A1 Highly-concentrated flowable salts of alkyl polyalkoxy sulphates
09/27/2012WO2012126088A1 Method for the synthesis of dha
09/27/2012US20120245387 Lithium salts of pentafluorophenylamide anions, preparation thereof and use thereof
09/27/2012US20120245378 Use of an acetic acid/water solvent mixture for the preparation of low-sulfate 5-sulfoisophthalic acid, mono-lithium salt from 5-ulfoisophthalic acid
09/27/2012US20120245348 New Cyclopentadienyl, Indenyl or Fluorenyl Substituted Phosphine Compounds and their Use in Catalytic Reactions
09/27/2012CA2830760A1 Highly-concentrated flowable salts of alkyl polyalkoxy sulphates
09/27/2012CA2812126A1 Method for the synthesis of dha
09/26/2012EP2501677A2 A method of making a synthetic alkylaryl sulfonate
09/26/2012CN102690641A Sulfonate surfactant and preparation method thereof
09/26/2012CN102688250A Synthesis and application of azo derivatives as inhibitor of RSK2
09/25/2012US8273918 Process for preparing tamsulosin hydrochloride
09/20/2012WO2012122667A1 Betaine surfactants and preparation methods and uses thereof
09/20/2012US20120238740 Non-polar and polar leaving groups
09/19/2012CN102686560A Highly overbased magnesium alkytoluene sulfonates
09/19/2012CN102686559A Method for producing perfluorosulfonic acid having ether structure and derivative thereof, and surfactant containing fluorine-containing ether sulfonic acid compound and derivative thereof
09/19/2012CN102675184A Salt form of tyrosine kinase inhibitor
09/19/2012CN102675166A New intermediate for preparing 2-propylheptylic acid and preparation method thereof, and preparation method of 2-propylheptylic acid
09/19/2012CN102675165A Preparation method of N-carbobenzoxy-2-amino-alkyl sulfonamide
09/19/2012CN102675164A Oligomerization sulfonate amino anthraquinone hypersensitive lead ion fluorescent probe, and preparation and application thereof
09/19/2012CN102675163A Preparation method of sulfonamide
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