Patents
Patents for C07C 315 - Preparation of sulfones; Preparation of sulfoxides (4,234)
12/1994
12/07/1994EP0627415A1 A method of producing a 2,4'-dihydroxydiphenylsulfone
12/07/1994EP0555340B1 Process for preparing florfenicol, its analogs and oxazoline intermediates thereto
11/1994
11/23/1994EP0625138A1 Novel amidine derivatives, their preparation and their use as mediaments with ltb-4 antagonistic effect
11/23/1994EP0446301B1 Preparation of biaryl compounds
11/10/1994WO1994025435A1 Peptidyl derivatives and their use as metalloproteinase inhibitors
11/10/1994CA2139129A1 Peptidyl derivatives and their use as metalloproteinase inhibitors
11/09/1994CN1094712A Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
10/1994
10/26/1994CN1094033A Process for preparing Û5-amino-2-(2-hydroxyethylamino)-phenylÙ (2-hydroxyethyl) sulphone
10/20/1994DE4312037A1 Process for cleaving polycarbonates
10/12/1994EP0619303A1 4-alkyl-3-chloro-benzenesulfinic acids, 4-alkyl-3-chloro-benzenesulfonic acids, 4-alkyl-3-chloro-alkylsulfonylbenzenes and process for their preparation
10/12/1994EP0618898A1 Amidino derivatives and their use as nitric oxide synthase inhibitors
10/11/1994US5354879 3-Hydroxy-5-oxo-6-triorganophosphoranylidene hexanoates from esters of mandelic acid and 3-hydroxy glutarates; inhibitors of HMG-CoA reductase; anticholesterol agents
10/05/1994EP0483218B1 5-substituted aminophenols
10/04/1994US5352832 Asymmetric process for preparing florfenicol, thiamphenicol chloramphenicol and oxazoline intermediates
10/04/1994CA2120419A1 4-alkyl-3-chlorobenzenesulfinic acids, 4-alkyl-3-chlorobenzenesulfonylcarboxylic acids, 4-alkyl-3-chloroalkylsulfonylbenzenes and preparation thereof
09/1994
09/29/1994WO1994021603A1 A process for preparing sulfones
09/28/1994EP0489788B1 Method of preparation of 4,4'-dihydroxydiphenylsulphone
09/14/1994CN1092059A Substituted benzoic acids
09/13/1994US5346828 Stereoisomeric enrichment of 2-amino-3-hydroxy-3-phenylpropionic acids using d-threonine aldolase
09/06/1994US5344986 Amino phenoxy compounds and process for their preparation
09/01/1994WO1994019315A1 New compounds
08/1994
08/30/1994CA1331763C Phenoxyalkylcarboxylic acid derivatives and process for their preparation
08/17/1994CN1090843A Preparation of methylsulfonylbenzoic acids
08/09/1994US5336800 Mixed oxamides
08/03/1994EP0518889B1 Method for preparing 3'-aminopropyl-2-sulphatoethylsulphone
08/03/1994EP0500639B1 Process for the production of alkyl-(3-chlorophenyl) sulphones
07/1994
07/27/1994EP0470103B1 Process for the production of alkane sulphonyl benzoic acids
07/26/1994US5332835 Process for fluorinating 1-phenyl-2-amino-1,3-propanediol compounds and new oxazoline compounds useful in this process
07/12/1994US5329040 Process for the continuous preparation of aminoaryl or aminoalkyl β-sulfatoethyl sulfones
07/07/1994WO1994014764A1 Asymmetric process for preparing florfenicol, thiamphenicol, chloramphenicol and oxazoline intermediates
07/05/1994US5326906 Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions
06/1994
06/28/1994CA1330448C Process for synthesizing 4,4' dihydroxydiphenyl sulfone
06/15/1994EP0601406A1 Method for the preparation of (5-amino-2-(2-hydroxyethylamino)phenyl)(2-hydroxyethyl) sulphone
06/15/1994EP0601385A1 Disubstituted benzoic acid derivatives
06/15/1994CN1087896A Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
06/09/1994DE4240586A1 Prepn. of 7-amino:naphthalene sulphonic acid derivs. with beta-sulphato:ethyl:sulphonyl substit. - from corresp. 7-aminonaphthalene deriv. with beta-sulphatoethylsulphonyl gp., by reaction with sulphur tri:oxide
06/09/1994CA2110116A1 Substituted benzoic acids
06/08/1994EP0600617A1 Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
06/08/1994EP0600370A1 Di-(3-(2-chloroethylsulphonyl)-1-propylamine hydrochloride and method for its preparation
06/08/1994EP0600318A1 Asymmetric, halogenated benzophenones and process for their preparation
06/08/1994EP0600317A1 Process for the preparation of halogenated benzoic acids
06/01/1994EP0599688A1 Process for O-alkylation of phenolic compounds
05/1994
05/30/1994CA2110112A1 Asymmetric halogenated benzophenones and process for their preparation
05/30/1994CA2110085A1 Process for the preparation of halogenated benzoic acids
05/24/1994US5315025 Fungicides
05/17/1994US5312960 Fungicidal 2-methoximinocarboxylic esters
05/11/1994EP0596358A1 0-Phenylenediamines containing fluoroakyl(ene) groups and their use as intermediates in the preparation of benzimidazoles
05/11/1994CA2109399A1 Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
05/04/1994EP0594573A1 Preparation of propenoic acid derivatives
04/1994
04/27/1994EP0594027A1 Method for the preparation of methylsulphonylbenzoic acids
04/20/1994EP0592875A1 Process for producing dichlorodiphenylsulfone
04/19/1994US5304682 One step sulfonation, nitration of 1,1'-thiobis/3-trifluoro-methyl/benzene
04/14/1994WO1994007850A1 Process for the stereoselective synthesis of 3-substituted 2-sulphonyl methyl propionic acids and intermediate products
04/14/1994WO1994007849A1 Process for the stereoselective synthesis of 3-substituted 2-thiomethyl propionic acids
04/14/1994CA2146144A1 Process for the stereoselective synthesis of 3-substituted 2-thiomethylpropionic acids
04/14/1994CA2146142A1 Process for the stereoselective synthesis of 3-substituted 2-sulfonylmethylpropionic acids, and intermediate products
04/13/1994EP0443046B1 Process for preparing 4,4'-dihydroxydiphenyl sulfone
04/07/1994DE4233100A1 Verfahren zur stereoselektiven Synthese von 3-substituierten 2-Sulfonylmethylpropionsäuren sowie Zwischenprodukte Method for the stereoselective synthesis of 3-substituted 2-Sulfonylmethylpropionsäuren and intermediates
04/07/1994DE4233099A1 Verfahren zur stereoselektiven Synthese von 3-substituierten 2-Thiomethylpropionsäuren Method for the stereoselective synthesis of 3-substituted 2-Thiomethylpropionsäuren
04/06/1994EP0590555A1 Process for the preparation of aromatic ureas, containing a thioether or a sulphonyl group
03/1994
03/23/1994CN1084160A Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
03/22/1994US5296635 Preparation of bis(3-nitrophenoxy) compound
03/22/1994US5296634 Reduction
03/22/1994US5296601 Process for producing carboxylic acid esters
03/16/1994CN1024004C Fungicides
02/1994
02/22/1994US5288913 Process for the preparation of 4,4'-dihydroxydiphenyl sulfone
02/22/1994US5288900 Crystallization of optical isomers of leukotriene antagonists using (R)-4-nitro-α-methylbenezenemethonamine
02/15/1994US5286894 Phenyl acrylic acid derivatives
02/15/1994CA1327049C Process for obtaining substituted fluorobenzenes
02/08/1994US5284978 Reacting bis(p-hydorxyphenyl? sulfone with alkali metal hydroxide, reacting product with alkyl halide
02/08/1994US5284966 Intermediates for the stereochemical inversion of (2S,3S)-2-amino-3-phenyl-1,3-propanediols into their (2R,3R) enantiomers
01/1994
01/25/1994US5281740 Reaction of allylamine with mercaptoethanol in acid, free radical catalytic oxidation in sulfuric acid
01/18/1994US5280044 Containing benzene structure
01/11/1994US5278291 Hydroxyethylthio hydroxyethylamino-phenyl-azo and -azoxy dyestuffs
01/05/1994EP0577024A1 3,4,5 substituted benzoylguanidines, process for their preparation, their use as medicament or diagnostic agent, as well as a medicament containing them
01/04/1994US5276196 Synthesis of bis(haloarylsulfonyl) aromatics
01/02/1994CA2099445A1 3,4,5-substituted benzoylguanidines, process for their preparation, their use as a medicament or diagnostic and medicament containing them
12/1993
12/28/1993US5274139 Method for effective reaction between oxygen and organic substance utilizing regenerable hydroperioxide oxidant
12/15/1993EP0573459A1 Method for preparing 3'-aminopropyl-2-sulphatoethylsulphone.
12/15/1993EP0447421B1 Preparation of 2-(chloro, bromo or nitro)-4-(alkylsulfonyl)benzoic acids and intermediates
12/14/1993US5270342 Acetamide derivatives
12/01/1993EP0571405A1 Process for preparing 4-alkylsulfonyl-1-alkyl-2-chlorobenzenes and the like.
11/1993
11/23/1993US5264609 Preparation of propenoic acid derivatives
11/10/1993EP0569139A2 Alkyl substituted nitrotoluene derivatives
11/10/1993EP0568860A1 Reactive dyes, their manufacture and their use
11/09/1993US5260489 Purification of halogenated aromatic sulfones or ketones
10/1993
10/26/1993US5256826 Preparation of aromatic carbonyl or sulfonyl compounds with an aryl ether structure
10/14/1993WO1993020047A1 Hydroxamic acid based collagenase and cytokine inhibitors
10/13/1993EP0565324A1 Method of recovering organic sulfur compound from liquid oil
10/13/1993CN1022407C Phenoxyalkylcarboxylic acid derivatives and process for their preparation
10/12/1993USRE34408 Reacting carbon monoxide with a 5-hydroxy pyrazole and a substituted benzene
09/1993
09/28/1993US5248828 Sulfonation, saponification
09/28/1993US5248787 Volatile organic barium, strontium and calcium compounds
09/16/1993WO1993018000A1 Regioselective sulphonylation of substituted aromatic compounds
09/15/1993EP0559636A1 Novel thiodiglycol derivatives, process for producing them and their use as textile softeners
09/14/1993CA1322202C Process for the preparation of 1,2,-disulfone compounds
09/07/1993US5243077 Reacting aminophenol and bis aminophenoxy diphenyl sulfone in solvent in presence of inorganic carbonates, bicarbonates or or basic carbonates
09/07/1993US5243056 Chemical intermediates for bactericides
08/1993
08/31/1993US5241121 Process for preparation of 4,4'-dihydroxydiphenylsulfone
08/31/1993US5241120 Chlorination of alkyl phenyl sulfones in sulfuric acid or fuming sulfuric acid
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