Patents
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)
04/2000
04/25/2000US6054613 Reacting alkane- or arenesulfonyl halide with an amine in aqueous solvent and extracting sulfonamide from mixture into polar organic solvent
04/25/2000US6054419 Mixture of alkyl-aryl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparation
04/20/2000WO2000022012A1 Polymers, containing a fluorocyclobutyl ring and their preparation
04/20/2000WO2000021920A1 Diaminopropionic acid derivatives
04/20/2000CA2342886A1 Polymers, containing a fluorocyclobutyl ring and their preparation
04/19/2000CN1251090A Method for prepn. of fatty acyl isethionate salt
04/19/2000CN1051556C Process for prepn. of heterosubstituted acetals
04/13/2000WO2000020389A1 Naphthalenecarboxamides as tachykinin receptor antagonists
04/13/2000WO2000020384A1 Diphenyl compounds substituted by camphor or hydantoin derivatives as sunscreen compositions
04/13/2000CA2345133A1 Naphthalenecarboxamides as tachykinin receptor antagonists
04/12/2000CN1250047A Dibromo-p-methyl azochlorosulfonate and its producing process
04/11/2000US6048979 Cyclotetramerizing, cleavage of arylmethyl groups to prepare cyclen and derivatives
04/11/2000US6048952 Perfluoroalkyl halides and derivatives
04/11/2000US6048665 Process for making a photoactive compound and photoresist therefrom
04/05/2000EP0990641A1 Process for the synthesis of alpha-substituted ring systems
04/05/2000EP0859756B1 Preparation of amido ester compounds
04/05/2000EP0851852B1 Process for nitrating diphenyl ether compounds
04/05/2000CN1249741A Process for purification of substd. p-nitrodiphenylethers
04/04/2000US6046344 Process for the preparation of hydroxypropylated quaternary ammonium compounds containing an ester functional group
04/04/2000US6046236 Carbocyclic sulfonamides
04/04/2000US6046152 As hair shampoo; laundry detergents, dishwashing detergents
04/04/2000US6045664 Forming alkanesulphonyl chlorides by photochemical reaction of an alkane with chlorine and sulphur dioxide using gallium-doped mercury lamp as light source
04/04/2000CA1340948C Peptidylaminodiols
04/04/2000CA1340940C Peptidylaminodiols
03/2000
03/29/2000CN1050867C Process for preparing perfluoroalkanesulfonyl fluorides
03/28/2000CA2170486C Synthesis of amido acids from carboxylic acids and lactams
03/23/2000WO2000015607A1 Process for the preparation of calcium hydroxyalkane sulphonates
03/23/2000CA2343025A1 Process for the preparation of calcium hydroxyalkane sulphonates
03/22/2000EP0986541A1 Process for covalently coupling organic compounds utilizing diboron derivatives
03/22/2000CN1247863A Carriers for combination of organic synthetic connecting material, their prepn. and use
03/21/2000US6040477 Forming a solution of a mono-, di- or trichlorobenzene-carboxylic acid or -aldehyde, an alkali or alkaline earth metal sulfite or bisulfite and water; adding a base to adjust the ph to 10-14 and heating; noncatalytic reaction; purity
03/21/2000US6040450 Reacting benzosulfide derivative with magnesium to form a magnesium halide containing benzosulfide derivative, reacting the intermediate with pyridine derivative to form intermediate, oxidizing and condensing the intermediate
03/15/2000EP0985662A2 Linker binding carriers for organic synthesis, their production and use
03/15/2000EP0985658A1 Process for producing l-valine benzyl ester p-toluenesulfonate
03/14/2000US6037377 Antiinflammatory agents and antiallergens
03/14/2000US6036830 Desalination of aqueous sulphonamide solutions
03/10/2000CA2281490A1 Linker-bound carriers for organic synthesis, their production and use
03/09/2000WO2000012451A1 Improved processes for making surfactants via adsorptive separation and products thereof
03/09/2000WO2000012077A1 Potassium channel inhibitors and method
03/09/2000DE19840319A1 Verfahren zur Herstellung von aromatischen oder heteroaromatischen Sulfonsäurechloriden A process for the preparation of aromatic or heteroaromatic sulphonyl chlorides
03/09/2000DE19840108A1 Alpha-amino-cycloalkene preparation in quantitative yield by metathesis of amino-alkadiene, used as precursors for e.g. plant protectants, cyclohexylamine or sweeteners
03/09/2000DE19838516A1 Verfahren zur Herstellung von Sulfonylhalogeniden Process for the preparation of sulfonyl halides
03/09/2000CA2341224A1 Improved processes for making surfactants via adsorptive separation and products thereof
03/08/2000EP0983982A1 Process for the preparation of aromatic or heteroaromatic sulfonyl chlorides
03/08/2000EP0983284A1 Synthesis of n-silylated cyclopentaphenanthrene compounds
03/08/2000EP0983216A1 Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent
03/02/2000WO2000010968A2 Novel aryl sulphonamide amino acid esters and analogues
03/02/2000WO2000010966A1 Method for the production of sulfonyl halogenides
03/02/2000CA2341028A1 Novel aryl sulphonamide amino acid esters and analogues
03/01/2000EP0982291A2 Process for the preparation of phenyl esters of amidocarboxylic acids
02/2000
02/29/2000US6031126 Rearranging a hydrazobenzene compound to form a diaminodiphenyl compound, diazotising, catalytic reacting with a styryl compound to form a distyryl-biphenyl fluorescent whitening agent
02/29/2000US6031121 Method for producing optically active phenylpropionic acid derivative
02/24/2000DE19837627A1 New aminoacid esters of arylsulfonamides are useful for e.g. treating neurodegenerative diseases, pain, convulsions or bacterial or viral infections
02/23/2000EP0868447B1 Iodonitriles as chain transfer agents in the manufacture of perfluoropolymers
02/22/2000US6028219 Process for the nitration of diphenylethers
02/17/2000WO2000008025A1 Synthesis of acyclic nucleoside derivatives
02/16/2000EP0979220A1 SINGLE-STAGE METHOD FOR PRODUCING $g(a)-HYDROXY ETHERS BY OXIDIZING C=C-UNSATURATED COMPOUNDS WITH HYDROPEROXIDES
02/10/2000WO2000006538A1 Methods of purifying lithium salts
02/09/2000CN1243824A Process for preparing monomer of sodium allylsulfonate
02/09/2000CN1049213C Process for producing p-toluenesulfonyl chloride
02/03/2000DE19834567A1 Preparation of sulf(at)o, sulf(at)oalkyl, carboxyl or tri(cyclo)alkyl-halo-ammonium-phenyl amino-acid ester used as bleach activator in laundry and other detergents involves adding inorganic acid chloride to amino-acid and phenol
02/02/2000EP0976451A1 Process for the recovery of perfluorinated sulphonic acids from spent acid
02/02/2000EP0975719A1 Use of glycerin sulfates as viscosity regulators for concentrated aqueous alkyl(ether) sulfate pastes
02/02/2000EP0975717A1 Method for producing sulfated fatty acid esters
02/01/2000US6020518 Process for preparing β-amino-α-hydroxy acid derivatives
02/01/2000US6020303 Mid-chain branched surfactants
01/2000
01/31/2000CA2279764A1 (perhaloethyl)aromatic compounds and (perhaloethenyl)aromatic compounds therefrom
01/26/2000EP0973704A1 Process for the manufacture of arylsulfonyl chloride
01/26/2000EP0686145B1 New compounds
01/26/2000CN1242360A Method for producing sodium alkyl benzenesulfonate powder
01/26/2000CN1048721C Method for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid and its salts
01/19/2000EP0971875A1 Process for the purification of substituted p-nitrodiphenylethers
01/18/2000US6015781 Detergent compositions containing selected mid-chain branched surfactants
01/11/2000US6013667 Benzenesulfonylamine compounds, process for preparing them and pharmaceutical compositions
01/05/2000EP0968178A1 N-sulphonyl and n-sulphinyl amino acid amides as microbicides
01/05/2000EP0968162A1 5-hydroxyalkyl substituted phenyls and their use in medicaments for the treatment of arteriosclerosis and hyperlipoproteinaemia
01/05/2000EP0968158A1 Preparation of preparing substituted indanones
01/05/2000EP0794933B1 A method for inhibiting premature polymerization of vinyl aromatic monomers
01/05/2000CN1240423A Method for producing trifluoroacetoacetic acid anilides
01/04/2000US6011177 Process for 4-sulfonamidolphenyl hydrazines
12/1999
12/29/1999EP0966459A1 Process for preparing fluorinated beta-sultones
12/29/1999CN1239947A Process for production of sulphonamides
12/28/1999US6008181 Mid-Chain branched Alkoxylated Sulfate Surfactants
12/23/1999WO1999065870A2 Sulfonamide inhibitors of aspartyl protease
12/23/1999DE19827273A1 Neue Kristallmodifikation von CIPigment Red 53:2(delta-Phase) New crystal modification of CI Pigment Red 53: 2 (delta-phase)
12/22/1999EP0965616A1 Crystalline modification of pigment C.I. Pigment Red 53:2 (delta phase)
12/22/1999EP0965580A1 Method for producing 1,2-Naphthoquinone-2-diazide derivative
12/22/1999EP0812314B1 Magnesium low base number sulphonates
12/22/1999EP0812313B1 Low base number sulphonates
12/16/1999DE19805671C2 Verfahren zur Herstellung von trübungsfreien Detergensgemischen A process for the production of haze-free detergent mixtures
12/15/1999EP0963446A1 Composition for treating tanned leather, and its preparation
12/15/1999CN1238329A Process for preparing phenoxyphenylsulfonyl halides
12/14/1999US6001881 Administering to treat arrhythmia, angina pectoris, ischemia, shock, cell proliferation, fibrotic diseases, prostate hyperplasia, fat metabolism disorders, and as a preservative for transplant organs, or to prepare a patient for surgery
12/14/1999US6001347 Organic acid compound of given structure having an aromatic amide group, a methoxy group in the ortho position on the aromatic ring, and a lipophilic chain terminated with a carboxylic acid is useful as a nontoxic carrier
12/09/1999WO1999062872A1 New 3-aryl-2-hydroxypropionic acid derivative (i)
12/09/1999WO1999062871A1 New 3-aryl propionic acid derivatives and analogs
12/09/1999WO1999062864A1 Chemical process for the stereoselective synthesis of r-(-)-carnitine
12/09/1999WO1999043285A3 Sulphonamide derivatives
12/09/1999CA2334374A1 New 3-aryl propionic acid derivatives and analogs
12/09/1999CA2333572A1 Chemical process for the stereoselective synthesis of r-(-)-carnitine
1 ... 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 ... 115