| 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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| 07/10/1990 | CA2004604A1 Glycine derivatives and preparation thereof |
| 07/10/1990 | CA1271478A1 4-amino-butanoic acid derivatives, process of preparation and use thereof |
| 07/04/1990 | EP0376856A1 Preparation of biaryl compounds |
| 07/03/1990 | US4939170 Substituted aminophenyl carbamates |
| 07/03/1990 | US4939133 N-substituted-2-hydroxy-α-oxo-benzeneacetamides and pharmaceutical compositions having activity as modulators of the arachidonic acid cascade |
| 07/03/1990 | US4938846 Evaporation of water |
| 06/27/1990 | EP0374166A1 AMINE SALTS OF ALKANE-1,n-DICARBOXYLIC ACID MONO-(2-SULFATO-ETHYL)AMIDES. |
| 06/26/1990 | US4936551 Fatty acid polyoxyalkyl ester sulfonates, a process for their production and their use as surfactants |
| 06/20/1990 | EP0373951A1 Preparation of 2,3-trans-1,4-bridged cyclohexane sulfonamide derivatives and their use |
| 06/20/1990 | EP0373950A1 Process for preparing 1,4-bridged cyclohexane carboxylic acid derivatives and their use |
| 06/20/1990 | EP0373305A1 Purification of alkanesulfonic acids using ozone |
| 06/20/1990 | EP0373304A1 Purification of alkanesulfonyl chlorides |
| 06/19/1990 | US4935052 Herbicidal crontonic acid derivatives, their preparation and compositions containing them |
| 06/14/1990 | WO1990006300A1 Concentrated, free-flowing anionic surface-active agents and process for the production thereof |
| 06/14/1990 | WO1990006295A1 Preparation of biaryl compounds |
| 06/13/1990 | EP0372416A1 Process for the stabilisation of chloramines or salts of hypochloric acid |
| 06/13/1990 | EP0372415A1 Process for the stabilisation of chloramines or salts of hypochloric acid |
| 06/13/1990 | CN1008352B Recovery of waste acid of sulfuric acid alkylation |
| 06/12/1990 | CA1270260A1 Process for the preparation of a low viscosity alkyl toluene or alkyl xylene sulfonate |
| 06/06/1990 | EP0371369A1 Liquid, concentrated anionic tensides and process for their preparation |
| 06/06/1990 | EP0371271A1 Preparation of alkanesulfonamides |
| 06/05/1990 | US4931563 Using oleum with controlled sulfur trioxide content |
| 06/05/1990 | US4931549 Process for aryl-quinone and aryl-naphthoquinone diazide sulfonic acids |
| 06/05/1990 | US4931218 Sulfated hydroxy mixed ethers, a process for their production, and their use |
| 06/03/1990 | CA2004422A1 Process for the stabilization of chloramines or salts of hypochlorous acid |
| 06/03/1990 | CA2004421A1 Process for the stabilization of chloramines or salts of hypochlorous acid |
| 05/31/1990 | WO1990005717A1 Preparation of 2-chloro-4-toluenesulfonic acid |
| 05/31/1990 | CA2002598A1 Preparation of biaryl compounds |
| 05/31/1990 | CA2001876A1 Preparation of alkanesulfonamides |
| 05/30/1990 | EP0370644A2 Herbicidal compounds |
| 05/30/1990 | EP0370325A1 Process for the reductive dehalogenation of aromatics |
| 05/29/1990 | US4929752 Semicontinuous or continuous nitrosation bisulfite addition, acidification |
| 05/29/1990 | US4929737 Forming aminohaloaromatic compounds |
| 05/29/1990 | CA1269665A1 Amine dealkylation process |
| 05/23/1990 | EP0369512A1 Oleum sulphonation process |
| 05/23/1990 | EP0369511A1 Process for preparation of quaternary ammonium and phosphonium substituted carbonic acid esters |
| 05/23/1990 | EP0221344B1 Sulphonyl-phenyl alkyl amines, process for their preparation and medicines |
| 05/23/1990 | CN1042349A 环戊烷衍生物 Cyclopentane derivatives |
| 05/22/1990 | US4927962 Process of preparing fluorocarbon carboxylic or sulfonic acid from its fluoride |
| 05/22/1990 | US4927849 Sulfonamido derivatives inhibiting the aldose reductase enzyme system and pharmaceutical compositions containing them |
| 05/22/1990 | US4927454 Substituted 1-benzylsulphonyl-3-heteroaryl-(thio)urea herbicides |
| 05/22/1990 | CA2003481A1 Herbicidal compounds |
| 05/22/1990 | CA1269394A1 Ceric oxidant |
| 05/16/1990 | EP0368085A1 Process for the preparation of substituted 1,2-naphthoquinone-(2)-diazide-4-sulfonate esters, and their use in a light-sensitive mixture |
| 05/16/1990 | CA2002641A1 Process for the preparation of quaternary ammonium and phosphonium substituted carbonic acid esters |
| 05/16/1990 | CA2002640A1 Oleum sulphonation process |
| 05/15/1990 | US4925976 Olefin sulfonation method |
| 05/15/1990 | US4925975 Method of preparing alkali metal fluoroalkylsulfonates of high purity |
| 05/15/1990 | US4925950 Hydroxyalkylation |
| 05/15/1990 | US4925874 Novel cyclopropane carboxylates |
| 05/08/1990 | US4923889 Cardiovascular disorders |
| 05/08/1990 | US4923580 A, a-dibromoalkylarenes, hydrogen bromide, hydrogen peroide |
| 05/03/1990 | WO1990004586A1 Process for manufacturing highly sulphated fatty acids and fatty acid derivatives |
| 05/02/1990 | EP0366596A1 Process for synthesizing N,N'-dithiobis(Sulfonamides) |
| 05/02/1990 | EP0366015A1 Process for the preparation of highly sulfated fatty acids and fatty-acid derivatives |
| 05/01/1990 | US4922021 New alkylene diamine derivatives |
| 05/01/1990 | US4922008 Process for the production of 4-nitrotoluene-2-sulfonic acid |
| 05/01/1990 | US4921998 Substituted amino-5,6,7,8-tetrahydronaphthyl-oxyacetic acids, processes for their preparation and their use as medicaments |
| 05/01/1990 | CA1268597A1 Diamino acid derivatives |
| 04/26/1990 | CA2001276A1 Sulphonation process |
| 04/24/1990 | US4920135 Nonphytotoxic, interfere with metamorphosis |
| 04/24/1990 | CA1268184A1 Electroplating composition and process and surfactant compound for use therein |
| 04/19/1990 | WO1990003968A1 Method for the synthesis of sulfonylimidides |
| 04/19/1990 | WO1990003967A1 Process for producing light-coloured salts of alkylesters of alpha-sulphofatty acids |
| 04/18/1990 | EP0364340A1 Method for the synthesis of sulfonyl imides |
| 04/18/1990 | EP0363781A1 Process for the preparation of bright-coloured alpha-sulpho-fatty-acid alkyl ester salts |
| 04/17/1990 | CA1267903C Trifluoromethanesulfonates and a process for their preparation |
| 04/11/1990 | EP0363198A2 Positive working photosensitive composition |
| 04/11/1990 | EP0363094A1 Fluorochemical surfactants and process for preparing same |
| 04/10/1990 | CA2000278A1 Process for the production of light-colored -sulfofatty acid alkyl ester salts |
| 04/05/1990 | WO1990003363A1 Process for producing sulfonates of possibly ethoxylated and/or propoxylated fatty alcohols |
| 04/05/1990 | CA2000142A1 Method for the synthesis of sulfonylimidides |
| 04/03/1990 | US4914244 Process for preparing difluorochloromethoxybenzenes |
| 03/29/1990 | DE3830696A1 Process for the preparation of aqueous solutions of alkali metal salts or of the ammonium salt of propyne-3-sulphonic acid |
| 03/28/1990 | EP0360119A1 Process for the preparation of optionally ethoxylated and/or propoxylated fatty alcohols |
| 03/28/1990 | EP0360092A1 Process for preparing 4,4"-dihydroxyterphenyl |
| 03/28/1990 | EP0305648B1 Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid |
| 03/27/1990 | US4912262 Reacting a cyclohexane-1,3,5-trione compound with a acylnitrile in presence of a base and Lewis acid |
| 03/27/1990 | US4912244 Vinylsulfonylalkylamino-alkylamines as intermediates for the preparation of fiber-reactive dyes |
| 03/22/1990 | WO1990002730A1 Sulfonated fatty ketones, process for producing them and their use as surface-active agents |
| 03/22/1990 | DE3829591A1 Process for the preparation of diaryl sulphonyliminocarbonates |
| 03/21/1990 | EP0359305A1 Cyclopentane derivatives |
| 03/21/1990 | EP0359160A2 Process for the preparation of 2-alkoxy-benzosulfonamide compounds |
| 03/20/1990 | US4910339 Mixture of blocked diisocyanate and a polyoxyethylene glycol |
| 03/20/1990 | US4910335 Decolorization of alkanesulfonic and arenesulfonic acids |
| 03/20/1990 | US4910331 Decyclizing, sulfonating a dithiolane ring with a sulfone compound |
| 03/20/1990 | US4910330 Synthesis of sulfonic acids and carboxylic acid ester derivatives thereof |
| 03/15/1990 | DE3827670A1 Process for the preparation of iron(III) salts of organic acids |
| 03/14/1990 | EP0358097A1 Sulfonated fatty ketones, process for their preparation and their use as tensio-active agents |
| 03/14/1990 | CN1040363A Lubricant additives |
| 03/13/1990 | US4908478 Sulfonating 2-hydroxynaphthalene with sulfuric acid, removing impurities, treating the acid product with ammonia, N-acetylating |
| 03/13/1990 | US4908474 Treating alkali metal phenol sulfonate with equimolar amount of benzoyl chloride and restricted amount of water and base |
| 03/06/1990 | CA1266481A1 Bis-cyclohexane-1,3-dione derivatives |
| 03/06/1990 | CA1266479A1 Herbicidal fused tricyclic 1,3-dione derivatives |
| 02/28/1990 | EP0356366A1 A process for the preparation of N-sulfamyl-propionamidine derivatives |
| 02/28/1990 | EP0355384A1 Method of preparing acyloxybenzenesulfonic acids or salts thereof |
| 02/27/1990 | US4904680 Immunology |
| 02/27/1990 | US4904661 Phenol derivatives |
| 02/27/1990 | CA1266277A1 Propionamidine derivatives and process for their preparation |
| 02/26/1990 | EP0248879A4 Synthesis of aryloxypropanolamines and arylethanolamines. |