| 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) |
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| 03/25/1992 | EP0476016A1 Therapeutically useful 2-aminotetralin derivatives |
| 03/25/1992 | EP0475968A1 Process for preparing tenside mixtures based on ether sulphonates and use of said tenside mixtures |
| 03/25/1992 | EP0475967A1 Fatty alkyl sulphates and fatty alkyl polyalkylene glycolether sulphates, process for preparing them and their use |
| 03/25/1992 | CN1015980B Process for separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids |
| 03/24/1992 | CA1297904C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids |
| 03/24/1992 | CA1297903C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids |
| 03/24/1992 | CA1297886C Process for the sulfation of partial esters of aliphatic polyhydric alcohols |
| 03/18/1992 | EP0475512A1 Process for preparing quaternary ammonium carbonate esters |
| 03/18/1992 | EP0475044A1 Process for the production of aminoarylsulphonic acids |
| 03/18/1992 | EP0474861A1 Alcohol-ester separation by reaction with acetate. |
| 03/18/1992 | EP0474854A1 Alcohol-ester separation by recrystallization. |
| 03/18/1992 | EP0474853A1 Protected hydroxy method for alcohol-ester separation. |
| 03/17/1992 | US5097049 Process and intermediates for chiral epoxides |
| 03/17/1992 | US5096625 Process for the sulphoxidation of n-paraffins |
| 03/15/1992 | CA2051050A1 Process for preparing quaternary ammonium carbonate esters |
| 03/11/1992 | EP0474594A1 Process for dyeing of wool and mixtures thereof with other fibres with reactive dyestuffs |
| 03/10/1992 | US5095150 Formylated alklbenzenesulfonyl halide compound and process for preparing the same |
| 03/10/1992 | US5095144 Process for dimerizing aromatic halogen compound |
| 03/10/1992 | US5095132 Use of surfactants in phenol sulfonate dehydration |
| 03/10/1992 | CA1297122C Hypofluorites and bis-hypofluorites, and process for preparing same |
| 03/04/1992 | CN1015711B Cycloalkaho (1,2-b) indole-sulphonamides |
| 03/03/1992 | US5093029 Passing through layer of alkanesulfonyl chloride and/or bed of carbon |
| 03/03/1992 | US5092971 Bromination |
| 02/26/1992 | EP0472449A2 Substituted sulfonamides, processes for their preparation and medicines containing them |
| 02/25/1992 | CA1296359C Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 02/25/1992 | CA1296358C Process for removing paraffins from their mixtures with paraffinsulphonic acids |
| 02/25/1992 | CA1296357C Process for extracting paraffins from their mixtures with paraffinsulphonic acids |
| 02/25/1992 | CA1296355C Process for preparing fluoroaliphatic ether-containing carbonyl fluoride compositions |
| 02/25/1992 | CA1296335C Dichloroaniline derivatives |
| 02/20/1992 | WO1991019734A3 Thrombin inhibitors based on the amino acid sequence of hirudin |
| 02/12/1992 | EP0470669A2 Preparation of fluorophenols, fluorohalophenols, N-acylfluoroanilines, and N-acylfluorohaloanilines |
| 01/29/1992 | EP0468927A2 Derivatives of carboxymethylcyclopropane |
| 01/29/1992 | EP0468581A1 Process for the preparation of 2,6-di-t-butyl-4-mercaptophenol |
| 01/28/1992 | CA2047901A1 Carboxymethylcyclopropane derivatives |
| 01/28/1992 | CA1295086C 4-aminobutanoic acid derivatives, process of preparation and usethereof |
| 01/28/1992 | CA1294977C Hair treatment preparations |
| 01/22/1992 | EP0467183A1 Herbicides based on sulfonylated (thio)carbamic acid esters, sulfonylated carbamic acid esters and process for their preparation |
| 01/22/1992 | CN1057971A Co-sulfation of ethoxylated alcohols and unsaturated fatty alcohols |
| 01/21/1992 | US5082976 Oxidation of aminostyrenes |
| 01/21/1992 | US5082941 Process for preparing the piperazine salt of 2,5-dihydroxybenzenesulphonic acid monotosylate |
| 01/21/1992 | US5082932 Photosensitive |
| 01/21/1992 | US5082832 Pesticides |
| 01/15/1992 | EP0466483A1 Process for preparing perfluoroalkoxysulphonic compounds |
| 01/15/1992 | EP0466243A1 Process for the preparation of secondary alkyl sulfate-containing surfactant compositions |
| 01/14/1992 | US5081275 Reaction with phosphorus pentachloride and an alkali metal fluoride |
| 01/13/1992 | WO1992000958A1 Derivatives of aspartic acid and glutamic acid having anti-cholecystokinin activity |
| 01/13/1992 | CA2087193A1 Derivatives of aspartic acid and glutamic acid having anti-cholecystokinin activity |
| 01/07/1992 | US5079382 Chemical intermediates for carnitine and oxiracetam, hydroxy-sulfonate-ester |
| 01/07/1992 | US5079241 Cephalosporin derivatives and pharmaceutical compositions in which they are present |
| 01/07/1992 | CA2020648A1 Aqueous alkylation process |
| 01/02/1992 | EP0463357A1 Derivatives of bisstilbene |
| 01/02/1992 | DE4020837A1 Prepn. of ester sulphonate with low water content - by contacting aq. soln. or paste with hydrophilic water-miscible solvent and sepg. mixt. |
| 12/31/1991 | US5077395 Substituted 1,2-naphthoquinone-2-diazide-4-sulfonic acids and processes for their preparation and use |
| 12/26/1991 | WO1991019734A2 Thrombin inhibitors based on the amino acid sequence of hirudin |
| 12/24/1991 | US5075513 Fungicides |
| 12/24/1991 | US5075041 Sulfating olefin with concentrated sulfuric acid, neutralizing with base dispersed in nonionic surfactant, saponifying, passing through thin film evaporator |
| 12/17/1991 | CA1293263C Process for the preparation of substituted sulfonamidobenzamides and a novel intermediate thereto |
| 12/12/1991 | WO1991018874A1 PROCESS FOR PRODUCING LIGHT-COLOURED PASTES OF α-SULPHO FATTY ACID ALKYL ESTER ALKALI METAL SALTS |
| 12/12/1991 | WO1991018873A1 PROCESS FOR PRODUCING HIGHLY CONCENTRATED PASTES OF α-SULPHO FATTY ACID ALKYL ESTER ALKALI METAL SALTS |
| 12/12/1991 | WO1991018872A1 PROCESS FOR PRODUCING LIGHT-COLOURED PASTES OF α-SULPHO FATTY ACID ALKYL ESTER ALKALI METAL SALTS |
| 12/12/1991 | WO1991018871A1 Process for producing glycerin ether sulphates |
| 12/12/1991 | WO1991018870A1 PROCESS FOR PRODUCING HIGHLY CONCENTRATED PASTES OF α-SULPHO FATTY ACID ALKYL ESTER ALKALI METAL SALTS |
| 12/11/1991 | EP0461043A2 Enantiomer separation by transesterification |
| 12/11/1991 | EP0460544A2 Process for the preparation of sulphonated anthranilic acids |
| 12/11/1991 | CN1056873A Process for preparing light-colored alpha-sulfofatly acid alkyl ester alkali metal salt pastes |
| 12/11/1991 | CN1056872A Process for producing highly concentrated pastes of alpha-sulfofatly acid alkyl ester alkali metal salts |
| 12/11/1991 | CN1056871A Process for preparing light-colored pastes of alppha-sulfofatty acid alkyl ester alkali metal salt |
| 12/11/1991 | CN1056870A Process for producing highly concentrated pastes of alpha-sulfofatty acid alkyl ester alkali metal salts |
| 12/11/1991 | CN1015044B Preparation of 2-(2-nitrobenzoyl)-1, 3-cyclohexadione compounds, and uses thereof |
| 12/10/1991 | US5072040 Reacting an ionic nitride and a sulfonyl halide in the presence of an aprotic polar solvent |
| 12/10/1991 | US5072034 Sulfonation of 4-alkoxy-2-hydroxybenzophenone with chlorosulfonic acid in aliphatic, cycloaliphatic and/or aromatic carboxylate solvent |
| 12/10/1991 | US5072015 Carbonic acid fatty alcohol ester sulfonates, a process for their production and surface-active agents containing them |
| 12/04/1991 | EP0459258A2 Process for the preparation of olefinic and acetylenic compounds |
| 12/03/1991 | US5069828 Esterification of hydroxybenzenesulfonate with acid chloride i n presence of phase transfer agent |
| 11/27/1991 | EP0458099A2 Process for the preparation of salts of sulfosuccinic acid dialkylesters |
| 11/26/1991 | US5068427 Process for the preparation of alkane- and arenesulfonamides |
| 11/22/1991 | WO1991017987A1 Phenol and pyridinol derivatives as pharmaceuticals |
| 11/22/1991 | CA2081982A1 Phenol and pyridinol derivatives as pharmaceuticals |
| 11/19/1991 | US5066801 Preparation of sulfonic acid esters |
| 11/19/1991 | US5066676 Sulfonamido derivative inhibiting the aldose reductase enzyme system and pharmaceutical compositions containing them |
| 11/19/1991 | CA1292236C Process for preparing n-alkylated amino acids and esters thereof |
| 11/13/1991 | EP0456073A2 Multifunctional compounds having alpha-diazo-beta-ketoester units and sulfonic acid ester units and process for their preparation. |
| 11/13/1991 | CN1056100A Method of producing alkanesulfonanilide derivatives |
| 11/12/1991 | CA1292013C Process for the preparation of acyloxybenzenesulfonic acids and their salts |
| 11/12/1991 | CA1292008C Polyhydroxyl compounds containing a sulfonic acid ester group |
| 11/12/1991 | CA1291991C Antioestrogenic phenol derivatives |
| 11/06/1991 | EP0455473A1 Process and intermediates for chiral epoxides |
| 11/05/1991 | US5062997 Of unsaturated fatty acids or esters |
| 11/04/1991 | CA2041368A1 Process and intermediates for chiral epoxides |
| 10/31/1991 | WO1991016300A1 Process for manufacturing light-coloured washing alpha-sulpho-fatty-acid low-alkyl ester salts |
| 10/30/1991 | CN1055734A Process for preparing lower alkyl ester-salt of a-aliphatic sulfonic acid with light colour detergent active |
| 10/23/1991 | EP0452345A1 Process for impregnating anodized aluminium surfaces |
| 10/22/1991 | US5059711 Oxidizing bis(trifluoromethyl) disulfide in liquid phase |
| 10/22/1991 | CA1291165C Alkylsulfonamidophenylalkylamines |
| 10/22/1991 | CA1291163C Benzenesulfonamido derivatives |
| 10/22/1991 | CA1291161C Preparation of anhydrous alkanesulfonic acid |
| 10/17/1991 | WO1991015469A1 Alcohol-ester separation by reaction with bicarbonate in polyhydroxy solvent |
| 10/17/1991 | DE4012106A1 Verfahren zur herstellung hellfarbiger waschaktiver alpha-sulfofettsaeureniedrigalkylester-salze Process for the preparation of brightly colored washing-active alpha-sulfofettsaeureniedrigalkylester salts |
| 10/16/1991 | EP0451873A1 Derivatives of 2,2-dimethyl cyclopropanecarboxylic acid substituted at c-3 by a saturated halogenated chain, process for their preparation and their use in the synthesis of pesticidal products |
| 10/09/1991 | EP0451008A1 8-Sulfamylmethylene-2-amino tetralins |