| Patents for C07C 315 - Preparation of sulfones; Preparation of sulfoxides (4,234) |
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| 10/08/1991 | US5055490 Stereoisomers of benzonitrile derivatives, useful as cardiac arrhythmiac agents |
| 10/02/1991 | EP0448748A1 Method for preparing aromatic sulfones |
| 10/01/1991 | US5053547 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them |
| 09/25/1991 | EP0447421A1 Preparation of 2-(chloro, bromo or nitro)-4-(alkylsulfonyl)benzoic acids and intermediates. |
| 09/18/1991 | EP0446719A1 Amino phenoxy compounds and process for their preparation |
| 09/18/1991 | EP0446301A1 Preparation of biaryl compounds. |
| 09/11/1991 | CN1013861B Vinylcyclopropanecarboxylic acid esters |
| 09/10/1991 | US5047570 Preparation of 2-cyano-3-aminoacrylonitrile derivatives |
| 09/10/1991 | CA1288777C N-fluoropyridinium salt and process for preparing same |
| 09/08/1991 | WO1991013866A1 Method for preparing 3'-aminopropyl-2-sulphatoethylsulphone |
| 09/08/1991 | CA2077673A1 Method for preparing 3'- aminopropyl-2-sulphatoethylsulphone |
| 08/28/1991 | EP0443046A1 Process for preparing 4,4'-dihydroxydiphenyl sulfone |
| 08/20/1991 | US5041681 Chemical process |
| 08/20/1991 | US5041677 Heating phenol and sulfuric acid with solvent(dichlorobenzene or trichlorobenzene), removal of water; adding solvent to reduce 2,4' isomer by-product; crystalline product |
| 08/20/1991 | US5041663 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof |
| 08/08/1991 | WO1991011433A1 Process for producing diphenyl sulfone compound |
| 08/08/1991 | CA2049045A1 Method for producing diphenyl sulfone compounds |
| 07/31/1991 | EP0438994A1 Process for preparing sulfonyl acids |
| 07/31/1991 | EP0438665A1 Process for the preparation of 4,4'-bis-(4-aminophenoxy)-diphenylsulfone |
| 07/25/1991 | DE4001821A1 Prepn. of high purity 4,4-bis-(4-aminophenoxy)-di:phenyl:sulphone - by reaction of 4-aminophenol, alkali hydroxide and then 4,4-di:halo:di:phenyl sulphone in set ratios using di:alkylamide solvent |
| 07/24/1991 | CA2034637A1 Process for the preparation of 4,4'-bis(4-aminophenoxy)-diphenyl sulphone |
| 07/23/1991 | US5034417 New alkanesulfonanilide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same |
| 07/23/1991 | US5034411 Cardiovascular disorders or antiarrhythmia agents |
| 07/16/1991 | US5032169 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof |
| 07/13/1991 | CA2026593A1 Process for preparing sulfonyl acids |
| 07/11/1991 | WO1991009839A1 Process for producing 4,4'-dihydroxydiphenyl sulfone |
| 07/03/1991 | EP0435659A2 Preparation process of bis(3-nitrophenoxy) compound |
| 07/03/1991 | EP0435014A1 Removal of organic cations from polar fluids |
| 07/02/1991 | US5028256 Composition for protecting culture plants from the phytotoxic action of herbicidally active chloracetanilides |
| 06/25/1991 | US5026899 Acylcylohexanediones and the oxime ethers thereof with herbicidal and plant growth regulating properties |
| 06/18/1991 | US5025090 Decolorization of dihydroxydiphenyl sulfone |
| 06/18/1991 | US5025028 Asthma |
| 06/12/1991 | EP0431612A1 Purification of halogenated aromatic sulfones or ketones |
| 06/12/1991 | EP0431389A2 Azo dyes and process for the manufacture of [5-amino-2-(2-hydroxyethylamino)phenyl](2-hydroxyethyl)sulfone |
| 06/12/1991 | EP0431328A2 Fungicides |
| 06/09/1991 | CA2023862A1 Purification of halogenated aromatic sulfones or ketones |
| 06/07/1991 | CA2031600A1 Removal of organic cations from polar fluids |
| 06/05/1991 | EP0430001A1 Process for preparing benzaldehydes |
| 06/05/1991 | EP0429619A1 New process for the preparation of phenyl-guanidine derivatives. |
| 06/04/1991 | US5021414 Phenol derivatives |
| 05/30/1991 | WO1991007385A1 Preparation of propenoic acid derivatives |
| 05/30/1991 | WO1991007384A1 Process for the production of alkyl-(3-chlorophenyl) sulphones |
| 05/16/1991 | WO1991006534A1 Novel thiodiglycol derivatives, process for producing them and their use as textile softeners |
| 05/14/1991 | US5015775 Reaction of an alkylsulfonic acid with an aromatic compound and a phosphorous reagent |
| 05/08/1991 | EP0425930A2 Process for the preparation of symmetrical diarylacetylenes |
| 05/08/1991 | DE3936862A1 Neue thiodiglykol-derivate, verfahren zu ihrer herstellung und ihre verwendung als weichmacher fuer textilien New thiodiglycol derivatives, process for their production and their use as plasticizers for textiles |
| 04/27/1991 | CA2001689A1 Process for the production of ortho-nitrobenzonitriles |
| 04/24/1991 | EP0423705A2 Process for the stereochemical inversion of (2S,3S)-2-amino-3-phenyl-1,3-propanediols into their (2R,3R) enantiomers |
| 04/23/1991 | US5010189 Processes for the preparation of 5-amino-4-hydroxy-valeric acid derivatives |
| 04/16/1991 | US5008458 Process for purifying crude tetrabromobisphenol sulfone by extraction |
| 04/16/1991 | US5008448 Dehalogenation, reduction, acidification, salt formation |
| 04/10/1991 | EP0420972A1 Process for the preparation of sulphonylmethanes and their derivatives. |
| 04/09/1991 | US5006660 Reacting a halogenbenzene with alcohol or phenol in presence od copper(or compound thereof), amine, and base |
| 04/04/1991 | WO1991004245A1 Process for preparing 4,4'-dihydroxydiphenyl sulfone |
| 03/27/1991 | EP0419074A1 Compound, preparation and use |
| 03/19/1991 | US5001270 Process for recovering 4,4' dihydroxydiphenyl sulfone from an isomer mixture |
| 03/12/1991 | US4999381 Fungicides |
| 03/12/1991 | US4999042 Phenyl oximino-acetate fungicides |
| 03/07/1991 | DE3928704A1 Verfahren zur herstellung von 4,4' -dihydroxydiphenylsulfon A process for preparing 4,4 'dihydroxydiphenyl sulphone |
| 03/06/1991 | EP0415748A1 Threonine derived asymmetric chemical synthesis and intermediates for making antifungal compounds |
| 03/02/1991 | WO1991003473A1 Threonine derived asymmetric chemical synthesis and intermediates for making antifungal compounds |
| 03/02/1991 | CA2065259A1 Threonine derived asymmetric chemical synthesis and intermediates for making antifungal compounds |
| 03/01/1991 | WO1991003462A1 Method of preparation of 4,4'-dihydroxydiphenylsulphone |
| 03/01/1991 | CA2065293A1 Process for the preparation of 4,4'-dihydroxydiphenyl sulfone |
| 02/27/1991 | EP0414637A1 Process for the production of aromatic amines |
| 02/27/1991 | EP0414062A2 Process for preparing aromatic dicarboxylic acids and novel aromatic dicarboxylic acids |
| 02/26/1991 | US4996367 Process for making 4,4'-dihydroxydiphenyl sulfone |
| 02/26/1991 | US4996320 Thyroid inhibitors |
| 02/26/1991 | CA1280764C Tetramethylcyclopropanecarboxylates |
| 02/26/1991 | CA1280762C Vinylcyclopropanecarboxylic acid esters |
| 02/20/1991 | EP0413193A1 Method of making 1,1'-sulfonyl-bis(3-nitro-5-trifluoromethyl)benzene |
| 02/19/1991 | CA1280441C Meta-substituted dioxa-alkane carboxylic acids, esters, amides and salts of diphenyl ethers |
| 02/18/1991 | CA2021726A1 Method of making 1,1'-sulfonyl-bis(3-nitro-5-trifluoromethyl)-benzene |
| 02/13/1991 | EP0412387A2 Diarylacetylenes, their process and use |
| 02/12/1991 | US4992430 Anti-bacterial compositions comprising a substituted bis-(4-aminophenyl)-sulfone and a dihydro-folic acid reductase |
| 02/09/1991 | CA2022570A1 Diarylacetylenes, the preparation and use thereof |
| 02/07/1991 | WO1991001300A1 5-substituted aminophenols |
| 02/05/1991 | USH890 Herbicidal heterocyclicbenzylsulfonamides |
| 02/05/1991 | US4990678 Purification of halogenated aromatic sulfones or ketones |
| 02/05/1991 | US4990676 Reacting single enantiomer of chiral complex with carbanion |
| 02/05/1991 | US4990660 Preparation of aromatic hydroxycarboxylic acids |
| 02/05/1991 | US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use |
| 02/05/1991 | CA1279870C Aroyl substituted dihydro-1,4-thiazines |
| 01/31/1991 | DE3924395A1 Bis-(4-hydroxy:phenyl)-sulphone prodn. |
| 01/30/1991 | CN1048849A Method for preparing intermediates for the synthesis of steroid side chains in optically active form |
| 01/15/1991 | US4985585 Antiallergens |
| 01/15/1991 | US4985463 Aminodiaryl sulfoxide derivatives, process for their preparation and pharmaceutical and pesticidal compositions containing them |
| 01/09/1991 | EP0407256A1 Process for obtaining nucleophilic substitutions |
| 01/08/1991 | US4983773 Preparation of bis-(4-chlorophenyl) sulfone |
| 01/02/1991 | EP0406165A2 Process for the alkylation of aromatic amine |
| 01/02/1991 | EP0405634A2 Volatile organic barium, strontium and calcium compounds and method for the preparation of layered materials with barium, strontium or calcium oxides or fluorides from these compounds |
| 01/02/1991 | CN1048220A Polystyrenesulfonate |
| 01/02/1991 | CN1048214A Antiarrhytmic agents ii |
| 01/02/1991 | CN1048213A Stereoisomers |
| 12/27/1990 | EP0404748A1 Novel stereoisomers |
| 12/27/1990 | EP0404747A1 Novel polystyrenesulfonate |
| 12/25/1990 | US4980509 Aromatic polycyclic derivatives, their process of preparation and their use in human and veterinary medicine and in cosmetics |
| 12/25/1990 | US4980508 Oxidation of 1,2-disulonyhydrazine compound with concentrated nitric acid |
| 12/25/1990 | US4980444 Aromatic amide groups-containing diamines and polymers in which these diamines are incorporated |
| 12/22/1990 | WO1990015795A1 New process for the preparation of phenyl-guanidine derivatives |