| Patents for C07B 45 - Formation or introduction of functional groups containing sulfur (608) |
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| 05/17/2005 | US6894194 Oxidation of 2-mercaptoethanol with sulfur, to form bis/2-hydroxyethyl/ disulfide and trisulfide, used as chemical intermediates; lubricants |
| 03/16/2005 | CN1594245A Application of ketene thioacetal derivatives as thioalcohol substituted reagent |
| 03/09/2005 | CN1191884C High surface microporous active materials TIQ-6 and METIQ-6 in oxidation reactions |
| 01/18/2005 | US6843978 Microporous materials (TIQ-6 and METIQ-6) of high surface area active in oxidation reactions |
| 01/05/2005 | EP1243333B1 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 12/08/2004 | EP1324982B1 Aromatic sulfonation reactions |
| 12/02/2004 | US20040242932 admixing benzene, trichlorobenzene, and/or toluene with sulfur trioxide or chlorosulfuric acid in presence of 1,3-dialkylimidazolium containing liquid; distillation; solvent extraction; by-product inhibition |
| 12/02/2004 | US20040242801 treating compounds such as a dextran with a complex of SO3-DMF (sulfur trioxide complex of dimethylformamide) in the presence of an acid capture agent such as 2-methyl-2-butene |
| 11/23/2004 | US6821334 Especially pigments used in inkjet printing, by burning sulfur to yield gaseous sulfur dioxide; catalytically oxidizing to yield gaseous sulfur trioxide; and sulfonating in a gas phase-solid phase reaction. |
| 10/28/2004 | DE10162801B4 Mikrofallfilmreaktor Falling-film microreactor |
| 10/20/2004 | CN1171834C Method for preparing organic disulphides and polysulphides using ion-exchange resin |
| 10/06/2004 | EP0973704B1 Process for the manufacture of arylsulfonyl chloride |
| 09/15/2004 | EP1456247A1 Method for sulphonation of compounds comprising free hydroxyl (oh) groups or primary or secondary amines |
| 09/08/2004 | CN1165373C Catalyst for preparing thio-alcohol using zircomiumoxide as base |
| 08/03/2004 | CA2142322C Process for preparation of sulphonates |
| 07/07/2004 | CN1156440C Modified sulfonated product production |
| 06/17/2004 | US20040116748 Production of dithiodiglycol |
| 06/16/2004 | EP1428819A1 Production of dithiodiglycol |
| 06/02/2004 | CN1500784A New process for the industrial synthesis of the methyl diester of 5-amino-3-carboxymethyl-4-cyano-2-thiophenecarboxylic acid, and application to the synthesis of bivalent salts ofranelic acid and thei |
| 05/06/2004 | WO2004029022A3 Catalytic method of producing mercaptans from thioethers |
| 04/14/2004 | CN1488608A Process for preparing sulfonated or sulfated product from liquid sulfur dioxide and special apparatus thereof |
| 04/08/2004 | WO2004029034A1 Synthesis of thiophenecarboxylic acid esters for the production of ranelic acid salts |
| 04/08/2004 | WO2004029022A2 Catalytic method of producing mercaptans from thioethers |
| 04/08/2004 | WO2004029005A1 Catalytic method of producing alkyl mercaptans by adding hydrogen sulphide to an olefin |
| 03/31/2004 | EP1403265A1 Industrial process for the synthesis of 5-[bis(carboxymethyl)amino]-3-carboxymethyl-4-cyano-2-thiophene-carboxylic acid tetraesters and use for the synthesis of ranetic acid divalent salts and hydrates thereof |
| 03/25/2004 | US20040059134 Introducing in a reactor a5-amino-3-(carboxyalkyl)-4-cyano-2-thiophenecarboxylic acid, potassium carbonate and a quaternaryammonium salt as catalyst acetone solvent and methyl bromo acetate, heating and cooling |
| 02/26/2004 | WO2004016569A1 Process for the reduction of sulphoxides to sulphides |
| 02/05/2004 | US20040024257 Method for sulphonylating a hydroxylated organic compound |
| 02/04/2004 | CN1473149A Method for sulphonylating hydroxylated organic compound |
| 01/28/2004 | EP1383719A1 Sulfonation, sulfation and sulfamation |
| 10/01/2003 | CN1446198A Sulfation process |
| 09/11/2003 | US20030171589 Method for preparing sulfone or sulfoxide compound |
| 08/28/2003 | US20030162973 Reaction of the diazonium salt of an aminopyridine or aminobenzene in which the benzene ring bears one or more electron-withdrawing groups with a mixture of thionyl chloride in water, in the presence of an electron transfer-catalyst |
| 08/20/2003 | CN1118453C Synthesis of 1-(2-sulphoethyl)-pyridinium betaine |
| 08/13/2003 | EP1334956A2 Method for preparing sulfone or sulfoxide compound |
| 07/17/2003 | US20030134938 Process for producing sulfonated solid particles |
| 07/09/2003 | EP1324982A1 Aromatic sulfonation reactions |
| 07/02/2003 | EP1322601A1 Method for sulphonylating a hydroxylated organic compound |
| 06/18/2003 | CN1424938A High surface microporous active materials TIQ-6 and METIQ-6 in oxidation reactions |
| 06/05/2003 | WO2003046014A1 Method for sulphonation of compounds comprising free hydroxyl (oh) groups or primary or secondary amines |
| 05/14/2003 | EP1309546A1 Sulfation process |
| 05/14/2003 | CN1417268A Preparation process of sulfonated solid particle |
| 04/16/2003 | EP1054866B1 Synthesis of 1-(2-sulphoethyl)-pyridinium betaine |
| 04/02/2003 | CN1406931A Modified sulfonated product production |
| 03/11/2003 | US6531605 Reacting diazonium salt of aminopyridine or aminobenzene with thionyl chloride in water, electron transfer catalyst; 2-chloropyridine-3-sulfonyl chloride; avoids use of acetic acid and sulfur dioxide; no extraction isolation problems |
| 02/06/2003 | WO2001037629A8 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 12/19/2002 | US20020193239 For use as catalysts in epoxidation of olefins, for oxidation of alcohols, oxidation of organic thiols; hydroxylation of aromatic compounds; ammoximation of ketones |
| 12/18/2002 | CN1096290C Multitube falling film reactor for the continuous mfg. of sulfonated and/or sulfated compounds |
| 12/10/2002 | CA2036360C Reagents and methods for stereospecific fluoromethylation |
| 11/26/2002 | US6486351 Method for condensation of aromatic derivative(s) and a sulphinic derivative |
| 11/14/2002 | WO2002090297A1 Sulfonation, sulfation and sulfamation |
| 10/29/2002 | US6472354 In the presence of acid catalyst and of basic catalyst; provides clear, pale-coloured products; one step process |
| 10/08/2002 | US6462215 Sulfonation, sulfation, and sulfamation |
| 09/25/2002 | EP1243333A2 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 09/17/2002 | US6452035 Sulfation process |
| 09/11/2002 | EP1238704A2 Catalyst comprising a cyclic imide compound and process for producing organic compounds using the catalyst |
| 09/10/2002 | US6448435 Sulfonation, sulfation, and sulfamation |
| 07/02/2002 | CA2006372C Process for preparing isothiocyanato functionalized metal complexes |
| 06/26/2002 | CN1086692C Reagent for synthesing fluoresulfuring acid or sulfonic acid and its salt and process for synthesizing fluoresulfuric acid or sulfonic acid |
| 06/11/2002 | US6403800 Synthesis of 1-(2-sulfoethyl)-pyridinium betaine |
| 06/04/2002 | US6399821 Reacting a sulphonyl halide with nucleophilic base |
| 06/04/2002 | US6399820 Process and reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function |
| 05/07/2002 | US6384271 Sulfonation, sulfation and sulfamation |
| 05/07/2002 | CA2070663C Sulfonating agent and process |
| 04/18/2002 | WO2002030878A1 Aromatic sulfonation reactions |
| 04/11/2002 | WO2002028826A1 Method for sulphonylating a hydroxylated organic compound |
| 04/02/2002 | US6365780 Process for the preparation of aromatic or heteroaromatic sulphonyl chlorides |
| 03/14/2002 | WO2001037629A3 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 03/13/2002 | CN1080732C Process for preparing epoxy compounds |
| 02/19/2002 | US6348631 Method for acylation or sulphonylation of an aromatic compound |
| 02/14/2002 | WO2002012180A1 Sulfation process |
| 02/14/2002 | WO2002012179A1 Sulfation process |
| 02/14/2002 | US20020019552 Sulfation process |
| 02/07/2002 | US20020016510 In the presence of acid catalyst and of basic catalyst; provides clear, pale-coloured products; one step process |
| 01/10/2002 | US20020004613 Reacting a sulphonyl halide with nucleophilic base |
| 12/05/2001 | CN1325371A Sulphonylation method and reagent useful for perhalogenated sulphanilide synthesis |
| 11/20/2001 | US6319871 For use in multilayer circuit boards, resonators and filters for use in high frequency region, an impedance matching element for various microwave circuits |
| 11/14/2001 | EP0915814B1 Method for grafting a substituted difluoromethyle group |
| 10/31/2001 | EP1149813A1 Process for the preparation of sulphurised olefins |
| 10/04/2001 | EP1138657A1 Process for generating electrophiles from anions by reaction with electrophilic fluorinating agent |
| 10/02/2001 | US6297398 Reacting a perfluoroalkylsulfonyl halide with a nitrogenous nucleophile in the presence of an oil soluble neutralizing base which cannot be alkylated |
| 09/06/2001 | US20010020113 Placing a nucleophile, whose nucleophilic atom is advantageously a nitrogen, in contact with a sulphonyl halide and an organic base |
| 08/30/2001 | WO2001062719A1 Selective oxidation of sulfides by the use of an oxidant system consisting of lithium molibdenate niobate and hydrogen peroxide |
| 08/29/2001 | EP1127036A1 Sulphonylation method and reagent useful for perhalogenated sulphanilide synthesis |
| 08/07/2001 | US6271419 Process and reagent useful for the synthesis of sulphanilide which is perhalogenated on the carbon borne by the sulphur atom of the sulphanilide function |
| 08/07/2001 | US6270843 Process for generating useful electrophiles from common anions and their application in electrophilic reactions with organic substrates |
| 07/11/2001 | EP1114011A1 Method for condensation of aromatic derivative(s) and a sulphinic derivative |
| 05/31/2001 | WO2001037629A2 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 05/30/2001 | CN1066464C Process for preparing allyl ether, thioether and amine compounds |
| 05/23/2001 | CN1296476A Synthesis of 1-(2-sulphoethyl)-pyridinium betaine |
| 05/22/2001 | CA2216468C Multitube falling film reactor for the continuous manufacturing of sulfonated and/or sulfated compounds |
| 03/20/2001 | US6203670 Contacting compound having electrophilic substituent with a nucleophilic reagent which comprises fluorocarboxylic acid and polar aprotic solvent; exposing resulting medium of reaction to action of microwave energy |
| 03/14/2001 | EP0876312B1 Method for preparing organic disulphides and polysulphides |
| 02/20/2001 | US6191280 Method for producing substituted thiopyridines |
| 01/03/2001 | EP0799262B1 Process for preparation of epoxy compounds |
| 11/29/2000 | EP1054866A1 Synthesis of 1-(2-sulphoethyl)-pyridinium betaine |
| 11/15/2000 | CN1273573A Method for the synthesis of perfluorosulphonamides, perfluorosulfphonamides and their salts and sulphonation reagent |
| 10/11/2000 | EP1042282A1 Method for preparing aromatic thiols and derivatives, reagents, intermediate products and method for obtaining them |
| 09/27/2000 | CN1056833C Process for the sulphinylation of heterocyclic compound |
| 08/17/2000 | DE19905613A1 Photoinitiierung der Sulfochlorierung oder Sulfoxidation von Alkanen durch UV-Excimer-Strahlung zur Herstellung von Alkansulfochloriden und Alkansulfonaten Photo initiation of sulfochlorination or sulfoxidation of alkanes by UV excimer radiation for producing Alkansulfochloriden and alkanesulfonates |