| 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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| 04/19/1994 | US5304664 Sulfation, neutralization, separation |
| 04/14/1994 | WO1994007976A1 Aqueous cleaning agents |
| 04/14/1994 | DE4233736A1 Wäßrige Reinigungsmittel Aqueous cleaning agents |
| 04/13/1994 | CN1085210A Preparation of 1,4-diaminoan-thraquinone-2,3-disulfonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile |
| 04/12/1994 | US5302732 Use of ultra-low sodium silica-aluminas in the alkylation of aromatics |
| 04/05/1994 | US5300665 Process for preparing fatty acid esters and amides of sulfonic acid salts |
| 04/05/1994 | US5300396 Process of making naphthoquinone diazide esters using lactone solvents |
| 03/31/1994 | WO1994006778A1 Hydroxyl amino phenyl sulphonyl ureas, their preparation and their use as herbicides and plant growth regulators |
| 03/31/1994 | WO1994006760A1 Optically active alkylammonium (amino-3 phenyl)-1 ethanesulfonate derivatives, preparation and use thereof |
| 03/31/1994 | WO1994006759A1 No-bleach process for making sulfonated fatty acid alkyl ester surfactant |
| 03/31/1994 | CA2144769A1 Hydroxylaminophenylsulfonylureas, their synthesis, and their use as herbicides and plant growth regulators |
| 03/31/1994 | CA2144159A1 Optically active alkylammonium 1-(3-aminophenyl)ethanesulfonate; preparation thereof and its use |
| 03/30/1994 | EP0589621A1 Substituted styrenes |
| 03/30/1994 | EP0588824A1 Preparation of overbased magnesium sulphonates. |
| 03/23/1994 | EP0587774A1 Sulfonation process for viscous sulfonic acid |
| 03/22/1994 | US5296615 Process and intermediates for chiral epoxides |
| 03/18/1994 | CA2105418A1 Process for preparing fatty acid esters and amides of sulfonic acid salts |
| 03/17/1994 | DE4230933A1 Hydroxylamino-phenylsulfonylharnstoffe, Darstellung und Verwendung als Herbizide und Pflanzenwachstumsregulatoren Hydroxylamino-phenylsulfonylureas, preparation and use as herbicides and plant growth regulators |
| 03/16/1994 | EP0586975A1 Method for the isolation of 2-naphthylamine-1,5,7,-trisulphonic acid |
| 03/16/1994 | CN1023973C Process for extracting apolar substance from liquid phase by means of super critic gas in extractor equipped with perforated trays |
| 03/15/1994 | US5294741 Reacting an alcohol or secondary amine with a chlorosulfonyl isocyanate followed by heating to effect a rearrangement |
| 03/15/1994 | US5294735 Semicarbazides and the use thereof for stabilizing polyamide fibre materials and the dyeings produced thereon |
| 03/15/1994 | US5294726 Process for the preparation of light-colored oleic acid sulfonates |
| 03/09/1994 | EP0586346A1 Method for the preparation of distyrylbiphenyl compounds |
| 03/09/1994 | EP0585627A1 A process for preparing perfluoroalkylsulfonylfluorides and electrodes for carrying out said process |
| 03/09/1994 | EP0585265A1 Process for producing epoxy open ring products with a defined residual epoxy oxygen content. |
| 03/09/1994 | CN1083480A Process for the preparation of substituted benzenes and benzene sulfonic acid and derivatives thereof and a process for the preparation of N,N'-substituted ureas |
| 03/08/1994 | US5292947 Contacting dehydrated phosphoric acid with alkylsulfonic acid |
| 03/08/1994 | US5292932 Process for the preparation of 5-chloro-2-hydroxy-4-alkyl-benzenesulfonic acids |
| 03/04/1994 | CA2105371A1 Process for preparing distyrylbiphenyl compounds |
| 03/03/1994 | WO1994004490A1 Process for preparation of sulphonates |
| 03/03/1994 | DE4228377A1 Prepn. of 2-amino-4-nitrophenol-6-sulphonic acid in improved yield and purity useful for prepn. of azo dyes - by partial redn. of 2,4-di:nitro phenol-6-sulphonic acid in the presence of magnesium sulphate |
| 03/02/1994 | EP0585071A1 Process for making sodium acylisethionates |
| 03/01/1994 | US5290484 Process for the preparation of secondary alkyl sulfate-containing surfactant compositions |
| 02/23/1994 | EP0584043A1 Process for the preparation of substituted benzenes and benzene sulfonic acid and derivatives thereof and a process for the preparation of N'N-substituted ureas |
| 02/23/1994 | EP0583672A1 Process for the preparation of 2-aryl-ethane-sulfonic acids |
| 02/23/1994 | EP0583628A1 Process for the preparation of alkyl sulphate powders with high bulk density |
| 02/23/1994 | CN1082456A Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate |
| 02/22/1994 | US5288727 Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them |
| 02/22/1994 | CA2104520A1 Process for making sodium acylisethionates |
| 02/17/1994 | WO1994003423A1 Method of bleaching surfactants |
| 02/17/1994 | DE4226427A1 5-Methoxy-2-amino-benzene-1-sulphonic acid prodn. for use as dyestuff intermediate - by conversion of a p-anisidine to mixt. of neutral and acid sulphate with sulphuric acid, then reaction with sulphamic acid |
| 02/09/1994 | EP0582248A1 Method for the preparation of 3-sulphobenzoic acid and its alkali metal salts |
| 02/09/1994 | EP0582247A1 Method for the preparation of alkali metal salts of 3-sulphobenzoic acid |
| 02/09/1994 | EP0582079A1 Method to produce 1,4-diaminoanthraquinone-2,3-disulphonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile |
| 02/08/1994 | US5284993 Alkylation catalyst regeneration |
| 02/03/1994 | DE4225223A1 Verfahren zur Bleiche oberflächenaktiver Verbindungen Process for bleaching surface-active compounds |
| 02/03/1994 | DE4224747A1 New biodegradable ether sulphonate(s) prepn. - by sulphonating unsatd. ether(s), neutralising then hydrolysing with aq. base, useful for preparing low foam wetting agents for pretreating and washing textiles |
| 02/03/1994 | DE4224735A1 Light-coloured lower alkyl alpha-sulpho:fatty ester salt prodn. - by sulphonating fatty acid or lower alkyl ester in presence of thio-di:glycol ester to reduce oxidn. by sulphur tri:oxide, useful as detergent |
| 02/01/1994 | US5283355 Benzoquinone compounds |
| 02/01/1994 | US5283324 Process for preparing radiation sensitive compound and positive resist composition |
| 02/01/1994 | US5283276 Amorphous overbased alkaline earth metal sulfonate, solvent or plasticizer, polymeric material |
| 01/29/1994 | CA2096447A1 Process for conversion of sulfates to sulfonates |
| 01/26/1994 | EP0580194A2 Use of water-soluble dispersant agents obtained by sulfonating indene or indene mixtures with aromatics |
| 01/25/1994 | US5281366 Process for the preparation of secondary alkyl sulfate-containing surfactant compositions |
| 01/20/1994 | WO1994001397A1 METHOD OF MANUFACTURING CONCENTRATED PASTES OF SALTS OF α-SULPHONIC FATTY ACIDS |
| 01/13/1994 | DE4222169A1 Verfahren zur Herstellung konzentrierter Pasten von alpha-Sulfofettsäuresalzen A process for the preparation of concentrated paste of alpha-Sulfofettsäuresalzen |
| 01/13/1994 | DE4220580A1 New alpha-sulpho carbonyl cpds. useful as surfactants - prepd. by sulphonating higher aldehyde or ketone with sulphur tri:oxide |
| 01/11/1994 | CA1326047C Updated process for the preparation of alkylsulfonamides |
| 01/05/1994 | EP0577583A1 Process for preparing granular esters |
| 01/05/1994 | EP0577557A1 Hydrates of 4,4'-Bis-(2-sulfostyryl)-biphenyl-disodium or -dipotassium salts |
| 01/05/1994 | EP0576834A2 Process for producing optically active 1,2-diol derivatives |
| 01/05/1994 | EP0576464A1 Process for producing highly concentrated fatty alcohol sulphate pastes. |
| 01/04/1994 | CA1325812C Preparation of halogenated phenols |
| 12/31/1993 | CA2099297A1 Hydrates of the disodium salt or dipotassium salt of 4,4'-bis(2-sulfostyryl)biphenyl |
| 12/29/1993 | EP0575365A1 Method of preparation of benzoyloxybenzenesulphonates |
| 12/28/1993 | US5274190 Fluorinated aluminum catalyst |
| 12/28/1993 | US5274172 An alkali salt of a benzoyloxybenzenesulfonate by reacting an alkali phenol sulfonate salt with excess benzoyl chloride; stepwise addition and moderate stirring |
| 12/28/1993 | US5274171 Process for the palladium catalyzed coupling of a diazonium salt with an olefinic bond |
| 12/28/1993 | US5274098 Amidinophenylalanine derivatives, process for their preparation, their use and compositions containing them |
| 12/25/1993 | CA2099096A1 Process for preparing granular esters |
| 12/23/1993 | WO1993025646A1 Detergent composition having low skin irritability |
| 12/09/1993 | WO1993024453A1 Process for preparing odourless fatty alcohol ether sulphates |
| 12/09/1993 | WO1993024452A1 Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate |
| 12/09/1993 | DE4218725A1 Prepn. of naphthionic acid used as dyestuff intermediate - by reacting naphthyl-amine and sulphuric acid, then reacting with sulphamic acid |
| 12/09/1993 | DE4218562A1 Prepn. of per:fluoro:butyl sulphonyl fluoride - by electrochemical fluorination of butyl:sulphonyl:fluoride, sulpholane or sulpholene in hydrogen fluoride |
| 12/09/1993 | CA2136651A1 Process for the preparation of a surfactant composition comprising a secondary alkyl sulfate |
| 12/08/1993 | EP0572918A1 Process for selectively ortho-fluorinating substituted aromatic compounds |
| 12/08/1993 | EP0572517A1 Catalytic process for converting hydrocarbonaceous feeds, particularly lower alkanes to esters, alcohols, and optionally to hydrocarbons |
| 12/07/1993 | US5268504 Ethoxylation of a long chain, branched alcohol; sulfating; then reacting with sodium sulfite |
| 12/02/1993 | DE4218075A1 Verfahren zur Herstellung geruchsarmer Fettalkoholethersulfat-Salze Process for the preparation of low-odor fatty alcohol ether sulfate salts |
| 12/01/1993 | EP0571405A1 Process for preparing 4-alkylsulfonyl-1-alkyl-2-chlorobenzenes and the like. |
| 11/16/1993 | US5262563 Process for producing sulfoalkyl-substituted hydroxylamines |
| 11/10/1993 | EP0568915A2 Process for the desensitization of 1,2-naphthoquinone-2-diazide-sulfonic acid esters |
| 10/26/1993 | US5256821 Reacting a disilazane with a sulfonyl fluoride |
| 10/26/1993 | US5256815 Bisulfite adducts of 2,4-dihalobutraldehyde |
| 10/26/1993 | US5256807 Process and intermediates for chiral epoxides |
| 10/14/1993 | DE4212086A1 Producing alkane sulphonate(s) in a continuous process - by nano-filtration of the lower phase followed by saponification, to increase yield and reduce the COD of waste water |
| 10/13/1993 | EP0565324A1 Method of recovering organic sulfur compound from liquid oil |
| 10/12/1993 | US5252770 Process for the production of carbonate esters |
| 10/12/1993 | US5252539 Benzenesulfonyl carboxamide compounds intermediate compounds and method of preparation thereof and use of said compounds and intermediate compounds as herbicidal agents |
| 10/05/1993 | US5250718 Process for the preparation of secondary alkyl sulfate-containing surfactant compositions |
| 09/30/1993 | WO1993019043A1 New alkylating reagent, process for preparing the same and its use |
| 09/30/1993 | DE4210166A1 Neues Alkylierungsreagenz, Verfahren zu seiner Herstellung und Verwendung New alkylating reagent, process for its preparation and use |
| 09/30/1993 | CA2132824A1 New alkylating reagent, process for preparing the same and its use |
| 09/28/1993 | US5248812 Precipitation by dilution |
| 09/28/1993 | US5248811 Process for producing sulfoalkyl-substituted hydroxylamines |
| 09/23/1993 | DE4209008A1 Aniline hydrogen sulphate and sulphanilic acid mixt. continuous prodn. - by mixing aniline and sulphuric acid in stoichiometric ratio intensively in reactor with free overflow |
| 09/16/1993 | WO1993017999A1 Direct-dyeing colouring agents for natural and synthetic fibres |
| 09/09/1993 | DE4206536A1 Direktziehende farbstoffe fuer fasern natuerlichen ursprungs und synthetische fasern Substantive dyes for natural fibers and synthetic fibers origin |