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)
12/1999
12/08/1999	CN1237961A Aminoguanidines and alkoxyguanidines as protease inhibitors
12/08/1999	CN1047166C Improved process for making sulfonyl isocyanates
12/07/1999	US5998564 Curing agent for fluoropolymers
12/02/1999	WO1999061415A1 Sulphonation process and novel sulphonated compounds
12/01/1999	EP0696274B1 Process for preparing ng-monoalkyl-l-arginine and related compounds
12/01/1999	CN2351436Y Reactor for producing 4B acid with solid phase baking method
12/01/1999	CN1046938C Novel sulfonate, process for producing same and bleaching composition containing the same
11/1999
11/30/1999	US5994583 First step is a catalyzed asymmetric aminohydroxylation addition reaction to an olefin substrate
11/30/1999	US5994582 Preparation of substituted guanidine derivative
11/30/1999	US5993629 Regenerating of acids, particularly of strong organic acids, using bipolar membranes
11/24/1999	EP0959059A2 A method for inhibiting premature polymerization of vinyl aromatic monomers
11/24/1999	CN1235965A Process for preparation of sulphonated distyryl-biphenyl compounds
11/23/1999	US5990353 Demetallizing an arylsulfonamide alkali metal salt with an aromatic isocyanate compound in at least one solvent; use as a color developer for a thermal recording material with improved oil resistance and nonplasticized
11/23/1999	US5990336 Synthesis and purification of zosteric acid
11/23/1999	US5990158 Carboxylic acid derivatives, method of manufacturing the same and therapeutic agents containing these compounds
11/23/1999	US5989539 Compounds and compositions for delivering active agents
11/18/1999	WO1999058630A1 Alkyl sulfate granulates
11/18/1999	DE19820943A1 Low-odor alkyl sulfate granulates useful as surfactant laundry, dishwashing and other detergents and hair and skin cleansers
11/17/1999	EP0957086A2 Process for the removal of metal compounds from an aqueous acid solution
11/17/1999	EP0957085A1 A process for the preparation of sulphonated distyryl-biphenyl compounds
11/17/1999	EP0957078A1 Process for the preparation of shikimic acid and its derivatives
11/17/1999	CN1235155A Process for photochemical sulphochlorination of gaseous alkanes
11/17/1999	CN1235151A Process for preparation of shikimic acid and its derivatives
11/17/1999	CN1235141A Process for preparing organic compound
11/17/1999	CN1046493C Method for inhibiting premature polymerization of vinyl aromatic monomers
11/16/1999	US5986075 Coupling a desalted organic diazonium compound with a coupling compound
11/16/1999	CA2010272C Benzenesulfonamides and a process for their preparation
11/10/1999	CN1234786A Nitrification process
11/10/1999	CN1234396A Process for alkylation of hindered sulfamide
11/09/1999	US5981758 Preparation of saccharincarbonyl halides
11/04/1999	WO1999055666A1 Conversion of a hydroxy group in certain alcohols into a fluorosulfonate ester or a trifluoromethylsulfonate ester
11/04/1999	DE19919807A1 Apparatus for preparing sulfates useful as surfactants
11/04/1999	CA2330467A1 Conversion of a hydroxy group in certain alcohols into a fluorosulfonate ester or a trifluoromethylsulfonate ester
11/03/1999	EP0700900B1 Process for producing acyloxybenzenesulfonic acid or salt thereof
11/02/1999	US5977177 Substituted benzenesulfonylureas and-thioureas, processes for their preparation and use of pharmaceutical preparations based on these compounds, and medicaments containing them
11/02/1999	CA2155342C Highly concentrated alkyl sulphate solutions
10/1999
10/28/1999	WO1999054292A1 Novel sulphonated and oxy- or polyalkylene diphenol derivatives and their corresponding salts
10/27/1999	EP0952147A1 Process for the photochemical sulfochlorination of gaseaous alkanes
10/27/1999	CN1045954C Method for producing 6-chloro-3-amino toluene-4-sulfonic acid with 0-chloro-toluene
10/26/1999	US5973148 Combining an aromatic or heteroaromatic slufonyl chloride compound with an aromatic or heteroaromatic amine in presence of aromatic tertiary amine base and added catalytic amount of an n-arylsulfilimine compound to form n-arylarylsulfonamides
10/26/1999	CA2165888C Process for preparing aromatic olefins
10/21/1999	WO1999052862A1 Process for alkylating hindered sulfonamides useful in the production of matrix metalloproteinase inhibitors
10/21/1999	CA2267609A1 Photochemical sulfochlorination process for gaseous alkanes
10/20/1999	EP0950649A1 A process for preparing oxyalkylene derivatives in the presence of phosphine oxides
10/20/1999	EP0765306B1 Alkyl sulfoacetate compositions and methods for preparing same
10/20/1999	EP0746541B1 Taurine derivatives for use in cleanser compositions
10/20/1999	CN1232023A Process for preparing hydroxamic acids
10/19/1999	US5969204 Diazotizing substituted monoamino benzenes, then reacting products with substituted p-divinylbiphenyls
10/19/1999	US5969182 Preparation of substituted guanidine derivatives
10/19/1999	US5968942 Inhibitors of hiv protease
10/13/1999	EP0949246A1 Process for preparing phenoxyphenylsulfonyl halides
10/13/1999	EP0949245A1 Process for alkylating hindered sulfonamides
10/13/1999	EP0949244A2 Process for preparing hydroxamic acids
10/13/1999	EP0948482A2 Method for producing trifluoroacetoacetic acid anilides
10/13/1999	EP0948479A1 Recovery of anhydrous alkanesulphonic acids
10/13/1999	EP0777648B1 A process for preparing purified alkali metal salts of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate without isolation of intermediates
10/13/1999	CN1231283A Process for preparing high basicity double-metal compounded sulfonate
10/13/1999	CN1045592C Process for preparing diiscoctyl sodium sulfosuccinate
10/12/1999	US5965757 Reacting 2,3-dihydro-1-oxocyclopentaphenanthrene with tosylhydrazide; reacting the tosylhydrazone compound with secondary amine/butyl lithium in toluene and tetrahydrofuran; intermediate for an titanium-n-silyl metallocene
10/12/1999	US5965320 Forming a positive photoresist layer on a substrate using a mixture of alkali-soluble resin and a phenol ester of 1,2-naphthoquinone(2)-diazide-6-sulfonic acid as aphotosensitive agent, patterning and developing
10/12/1999	US5965121 Compounds and compositions for delivering active agents
10/10/1999	CA2268680A1 Process for preparing hydroxamic acids
10/06/1999	EP0946504A1 Compounds useful for perhalogenoalkylation, reagent for implementing these compounds and synthesis method for obtaining these compounds
10/06/1999	EP0946500A1 Process for the preparation of n-(alkanoyl)aminoalkanoyloxy benzenesulfonates
10/06/1999	CN1230940A Method for grafting substituted difluoromethyle group
10/06/1999	CN1045432C Production method and equipment for sodium salt of methyl allyl sulfonic acid
10/05/1999	US5962743 Reacting aromatic compounds with carboxylic acid
09/1999
09/29/1999	EP0945449A1 Process for the preparation of saccharincarboxylic acid halides
09/29/1999	EP0945433A1 Process for the preparation of acyloxyalkanesulfonic acids
09/29/1999	EP0944590A2 Aminoguanidines and alkoxyguanidines as protease inhibitors
09/29/1999	EP0944589A1 Process for the production of sulphonamides
09/29/1999	EP0778825B1 Improved process for making sulfonyl isocyanates
09/29/1999	CN1230176A Stereospecific prepn. of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines
09/25/1999	CA2264359A1 Preparation of saccharincarbonyl halides
09/23/1999	WO1999047495A1 Process for the preparation of sulphonated distyryl-biphenyl compounds
09/23/1999	WO1999047488A1 Process for producing l-valine benzyl ester p-toluenesulfonate
09/22/1999	EP0942900A1 Stereospecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines
09/21/1999	US5955491 Method for treating osteoporosis
09/16/1999	WO1999046242A1 Cycloalkene derivatives, process for producing the same, and use
09/15/1999	CN1228417A Method for preparing omega-d-camphoresulfonic acid
09/14/1999	US5952531 Nitration process
09/14/1999	US5952526 Reacting para blocked calixarenes with concentrated sulfuric acid to perform ipso-electrophilic substitution; form complexes, adducts and inclusion compounds; heat and chemical resistance
09/14/1999	US5952524 Process
09/14/1999	US5952376 Trienyl compounds
09/14/1999	CA2015634C Process for preparing perfluoroalkenyl sulfonyl fluorides
09/02/1999	WO1999043285A2 Sulphonamide derivatives
09/02/1999	DE19809166A1 Enhancement of catalytic activity and selectivity of carbon-carbon bonding reactions in water or multiphase system
09/02/1999	CA2322139A1 Sulphonamide derivatives
09/01/1999	EP0939069A1 Method for the hydrolysis of a sulphonic acid ester in hydrocarbon substrate and recovery of the corresponding sulphonic acid
08/1999
08/26/1999	WO1998022435A9 Compounds useful for perhalogenoalkylation, reagent for implementing these compounds and synthesis method for obtaining these compounds
08/25/1999	EP0937710A1 Method for producing an optically active phenylpropionic acid derivative
08/25/1999	EP0937708A2 sulphonamide derivatives
08/25/1999	EP0937015A1 Nitration process
08/25/1999	EP0706511B1 Preparation of ammonium hydroxyalkyl/alkanoylalkyl sulfonates
08/25/1999	CN1044808C Process for industrialized production of 1-naphthol-4-sulfonic acid and sodium salt thereof
08/19/1999	DE19806221A1 Unsaturated fatty alcohols of natural origin, useful intermediates for nonionic and anionic surfactants for use in cosmetics
08/19/1999	DE19805671A1 Haze-resistant detergent mix for use in shampoos, detergents etc.
08/18/1999	CN1226251A Tertiary phosphanes containing alkylene clycol groups
08/17/1999	US5939587 N-protected/N-substituted-beta-amino hydroxy sulfonates
08/16/1999	CA2262224A1 Method for producing optically active phenylpropionic acid derivative

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