Patents
Patents for C07C 315 - Preparation of sulfones; Preparation of sulfoxides (4,234)
05/1999
05/11/1999US5902712 Substrate having circuits disposed thereon, coated with ablatively photodecomposable polymer comprising acrylic polymer with bound photoabsorber
05/11/1999CA2004618C Preparation of 2-(chloro, bromo or nitro)-4-(alkylsulfonyl)benzoic acids and intermediates
05/05/1999CN1215722A Method for producing alkylsulfinylbenzamides and 1,2-benzisothiazol-3-ones
05/05/1999CN1215721A Method for producing alkylsulfinylbenzamides and 1,2-benzisothiazol-3-ones
05/04/1999US5900512 Oxidation process
04/1999
04/07/1999EP0906300A1 Process for making phenyl heterocycles useful as cox-2 inhibitors
04/01/1999WO1999015503A2 Process for making diaryl pyridines useful as cox-2 inhibitors
04/01/1999WO1999015481A1 Asymmetric hydrogenation
03/1999
03/30/1999US5889056 Of nitric oxide synthase; hypotensive agent, antiinflammatory agents, antiarthritic agents
03/25/1999DE19741455A1 Production of parabase ester from aniline
03/24/1999EP0903174A1 Method and device for the liquid phase oxidation of organic compounds using peroxidic oxidants
03/23/1999US5886231 Process for the production of 2-(substituted benzoyl) 1,3 cyclohexanediones
03/22/1999CA2247662A1 Process and apparatus for the oxidation of organic compounds in liquid phase using peroxide oxidizing agents
03/18/1999CA2246116A1 Microwave synthesis of quinacridone intermediates
03/17/1999EP0902013A1 Novel amidine derivatives, their preparation and their use as medicaments with LTB-4 antagonistic effect
03/17/1999EP0766666B1 Benzylsulfide derivative, process for its production and pesticide
03/17/1999CN1042530C Method for producing alkylsulfinylbenzamides
03/16/1999US5883267 Process for making phenyl heterocycles useful as cox-2 inhibitors
03/10/1999EP0900783A1 Fluorescent whitening agent
03/10/1999EP0722438B1 Hydroxamic acid derivatives as inhibitors of cytokine production
03/10/1999CN1210102A Fluorescent whitening agent
03/10/1999CN1210100A Bromine compound production method
03/09/1999CA2246814A1 Separation of inorganic salts from dimethyl sulfoxide
03/04/1999WO1999010357A1 Binuclear non-heme iron catalysts
03/03/1999EP0899254A2 Bromine compound production method
03/02/1999US5877382 Using sulfolane
03/02/1999CA1340412C Fungicides
02/1999
02/24/1999CN1042222C Process for prepn. of cyclopentene, cyclopentane and cyclohexane derivatives
02/23/1999US5874618 Reacting 2-nitro-paraphenylenediamines substituted at 5-position by halogen atom with mercaptan derivative or salt in a solvent, further oxidizing for sulfur; useful as hair dye; reduced allergies; washing stability
02/11/1999WO1999006363A1 Improved method for producing parabase esters
02/09/1999US5868908 Separation of inorganic salts from dimethyl sulfoxide
02/04/1999DE19732814A1 Production of parabase ester from aniline
02/03/1999EP0805791B1 Process for the production of 2-(substituted benzoyl)-1,3 cyclohexanediones
01/1999
01/28/1999WO1999003802A1 Catalysed fluorination of carbonyl compounds
01/27/1999CN1041826C Preparation of N-alkyl-beta-hydroxyethyl sulfone aniline derivative
01/26/1999US5863931 Amidino derivatives and their use as nitric oxide synthase inhibitors
01/20/1999CN1205689A Novel 2,3,5-trimethyl-4-hydroxy anilide derivatives, prepn. thereof and therapeutical use thereof
01/07/1999DE19726807A1 Production of 4,4'-di:halo-di:phenyl-sulphone
01/07/1999DE19726806A1 Production of 4,4'-di:halo-di:phenyl-sulphone
01/07/1999DE19726805A1 Production of 4,4'-di:halo-di:phenyl-sulphone
01/06/1999CN1041519C Method for preparation of 1,3-di(ethylene sulfone)-2-propanol
12/1998
12/30/1998WO1998058907A1 Method for producing 4,4' dihalogendiphenylsulfone
12/30/1998EP0830361A4 Vinyl sulfoxides and a process for their synthesis
12/30/1998EP0662951B1 Process for the stereoselective synthesis of 3-substituted 2-thiomethyl propionic acids
12/30/1998CA2283894A1 Method for producing 4,4' dihalogendiphenylsulfone
12/24/1998DE19725799A1 Use of substituted thio-phenoxy derivatives
12/23/1998CN1202484A Purifying method for dimethylsulfoxide (DMSO)
12/16/1998CN1202150A Method for purifying dimethyl sulphoxide
12/16/1998CN1201775A Polyene alcohol derivative and process for producing the same
12/15/1998US5849796 Ortho-substituted benzoil acid derivatives
12/09/1998EP0882708A1 Process for the purification of dimethylsulphoxide (DMSO)
12/09/1998CN1201030A Method for purifying dimethyl sulfoxide (DMSO)
12/02/1998EP0881204A1 Polyene alcohol derivative and process for producing the same
12/01/1998US5843999 2-phenylazulene derivatives and a manufacturing method of these compounds
11/1998
11/24/1998US5840991 Antiatherosclerosis agents for lipid-lowering and antiperoxidative activity
11/24/1998US5840761 Antiarrhythmia agents, inhibitors of the cellular na+/h+ antiporter
11/18/1998EP0878466A1 Process for the purification de dimethylsulphoxide (DMSO=
11/15/1998CA2235789A1 Dimethylsulfoxide (dmso) purification process
11/15/1998CA2235770A1 Dimethylsulfoxide (dmso) purification process
11/11/1998CN1040643C Process for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl] (2-hydroxyethyl) sulphone
11/04/1998EP0874812A1 Novel 2,3,5-trimethyl-4-hydroxy anilide derivatives, preparation thereof and therapeutical use thereof
11/04/1998EP0874810A1 Method for purifying dimethyl sulphoxide (dmso)
11/04/1998CN1197795A Pull-push olefine and its synthesis process and use
11/03/1998US5830966 Cyclopolymerization monomers and polymers
10/1998
10/13/1998US5821388 Halogenation of methylthioacetophenone with chlorine or bromine in presence of methanol, oxidation with aqueous solution of hydrogen peroxide, sodium tungstate catalyst, and acid produces alpha-halo(methyl-sulfonyl)acetophenone
10/13/1998US5821262 Hydroxamic acid derivatives as inhibitors of cytokine production
10/01/1998WO1998042677A1 Process for preparing 1-alkyl-4- (2-chloro-3-alkoxy-4-alkylsulfonylbenzoyl) -5-hydroxypyrazole and related compounds
10/01/1998CA2257889A1 Process for preparing 1-alkyl-4-(2-chloro-3-alkoxy-4-alkylsulfonylbenzoyl)-5-hydroxypyrazole and related compounds
09/1998
09/22/1998US5811571 Process for preparing aromatic or heteroaromatic sulfonyl halides
09/17/1998WO1998040339A1 Method for acylation or sulphonation of an aromatic compound
09/17/1998CA2282680A1 Method for acylation or sulphonation of an aromatic compound
09/16/1998CN1192900A 2-(3,5-dieluorophenyl)-3-(4-(methylsulfonyl) phenyl)-2-cyclopenten-1-one useful as inhibitor of COX-2
09/15/1998US5807896 Antiarrhythmia agents; sodium channel modulators; cardiovascular disorders
09/09/1998EP0674618B1 Asymmetric process for preparing florfenicol, thiamphenicol, chloramphenicol and oxazoline intermediates
09/09/1998CN1192741A Vinyl sulfoxides and a process for synthesis therefor
09/02/1998EP0830362A4 Process for the synthesis of vinyl sulfenic acid derivatives
09/02/1998CN1192215A Process for the synthesis of vinyl sulfenic acid derivatives
08/1998
08/27/1998WO1998037058A1 Method for producing aromatic nitriles
08/27/1998DE19706648A1 Verfahren zur Herstellung von aromatischen Nitrilen A process for preparing aromatic nitriles
08/04/1998US5789599 Biologically active compounds
07/1998
07/28/1998US5786520 O-alkylation of phenolic compounds via rare earth orthophosphate catalysts
07/21/1998US5783729 Chemical process for the production of sulfonyl benzoic acids
07/09/1998WO1998029376A1 Process for the solid phase synthesis of aldehydes, ketones, oximes, amines and hydroxamic acid compounds
07/09/1998CA2275620A1 Process for the solid phase synthesis of aldehydes, ketones, oximes, amines and hydroxamic acid compounds
07/07/1998US5777111 Derivatives of aryl substituted 1,3-oxazines
06/1998
06/30/1998US5773284 Reacting glycine amide with benzaldehyde
06/24/1998EP0849262A1 Aminophenyl ketone derivatives and a method for the preparation thereof
06/24/1998CN1185430A Aminophenyl ketone derivative and preparation method thereof
06/16/1998US5767318 Process for producing a high purity 2,4-dihydroxydiphenylsulfone
06/10/1998CN1038675C Herbicide and its use
06/03/1998CN1038584C Process for preparation of methylsulfonyl-benzoic acids
05/1998
05/26/1998US5756832 Process for preparing amino acid esters useful as intermediates for compounds containing a fused bicyclic ring
05/26/1998US5756259 With polymer having bound photoabsorber
05/13/1998EP0841323A2 Method for producing arylvinylsulfone
05/05/1998US5747513 Hypotensive agents, heart failure and cerebrovascular insufficiency
04/1998
04/30/1998WO1998017640A1 Hydrogen peroxide adducts
04/30/1998WO1998017638A1 Nα-2-(4-NITROPHENYLSULFONYL)ETHOXYCARBONYL-AMINO ACIDS
04/30/1998CA2268544A1 N.alpha.-2-(4-nitrophenylsulfonyl)ethoxycarbonyl-amino acids
04/28/1998US5744641 Sulfonyl- or sulfinylbenzoylguanidine derivatives
04/28/1998US5744609 Method for producing alkylsulfinylbenzamides and 1-2 benzisothiazol-3-ones
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