| Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484) |
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| 03/20/1991 | CN1050017A Process for preparing acetyl acetoamide-n-sulfonic acid (salt) |
| 03/19/1991 | US5001163 Organic polymeric material and ion-exchange membrane with pendant carbocyclic exchanging groups produced |
| 03/19/1991 | CA1281738C Process for the preparation of acyloxybenzenesulfonic acids and salts thereof |
| 03/19/1991 | CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines |
| 03/14/1991 | DE3929985A1 Verfahren zur herstellung von kurzkettigen alkansulfonsaeuren aus olefinen Process for the preparation of short-chain alkane sulfonic acids from olefins |
| 03/13/1991 | EP0416393A1 Peptidyl difluorodiol renin inhibitors |
| 03/13/1991 | CN1049845A Process for preparing 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and its non-toxic salts |
| 03/13/1991 | CN1049770A Herbicidal glutarmic acids and deriatives |
| 03/12/1991 | CA2022558A1 Optical oxygen sensor |
| 03/12/1991 | CA1281332C Insecticidal n'-substituted-n,n'-diacylhydrazines |
| 03/07/1991 | WO1991002717A1 Process for preparing 5-chlor-2-hydroxy-4-alkyl-benzene-sulphonic acids |
| 03/06/1991 | EP0415641A1 Substituted glutaramic acids and derivatives |
| 03/06/1991 | EP0415473A1 Process for preparing sulphophenyl carbonate esters |
| 03/06/1991 | CA2024698A1 Peptidyl diflurodiol renin inhibitors |
| 03/05/1991 | US4997535 From methane, sulfur dioxide and chlorine |
| 03/05/1991 | CA1281032C Process for the preparation of benzylidene compounds |
| 03/01/1991 | CA2025347A1 Process for preparing sulphophenyl carbonate esters |
| 03/01/1991 | CA2023495A1 Herbicidal glutaramic acids and derivatives |
| 02/28/1991 | DE3926344A1 Verfahren zur herstellung von hellfarbigen oelsaeuresulfonaten Process for the production of light-colored oleic acid sulfonates |
| 02/27/1991 | EP0414655A1 Improved process for the production of carbonate esters |
| 02/27/1991 | EP0414102A2 Diols with different functions and polyurethane elastomers produced therefrom |
| 02/27/1991 | EP0414062A2 Process for preparing aromatic dicarboxylic acids and novel aromatic dicarboxylic acids |
| 02/27/1991 | CN1049495A Butyric acid derivatives |
| 02/27/1991 | CN1011778B Process for preparation of propyl sulphoacid and their salt |
| 02/26/1991 | US4996375 Vitamin E intermediates and a process for their manufacture and conversion into Vitamin E |
| 02/26/1991 | CA2024004A1 Process for the production of carbonate esters |
| 02/26/1991 | CA1280768C2 Cyclohexane 1, 3-dione derivatives |
| 02/21/1991 | WO1991001972A1 Process for preparing light-coloured oleic acid sulfonates |
| 02/21/1991 | WO1991001969A1 Phenyl-glycine derivatives |
| 02/21/1991 | WO1991001968A1 Phenyl-glycine derivatives |
| 02/21/1991 | WO1991001724A1 Renal-selective prodrugs for the treatment of hypertension |
| 02/20/1991 | EP0413666A1 Butyric acid derivatives |
| 02/20/1991 | EP0413230A1 Nitroaniline sulphonic acids and process for preparing phenylenediamino sulphonic acids |
| 02/20/1991 | EP0413201A1 Process for the preparation of 7-hydroxy-1,2-naphthoquinone-(2)-diazide-4-sulfonic acid or salts thereof and their use |
| 02/20/1991 | EP0413200A1 Substituted 1,2-naphthoquinone-(2)-diazide-4-sulfonic acids, process for their production and their use |
| 02/20/1991 | CN1049335A Process for preparing light coloured oleinic acid sulfonate |
| 02/19/1991 | US4994490 Novel N-(sulfomethyl)-N'-arylureas |
| 02/19/1991 | US4994486 Dopaminergic compounds |
| 02/19/1991 | CA2023464A1 Butyric acid derivatives |
| 02/13/1991 | EP0412273A1 Breaking emulsions of alkanesulfonyl chlorides in aqueous hydrochloric acid |
| 02/13/1991 | CA2023067A1 Substituted 1,2-naphthoquinone-2-diazide-4-sulfonic acids and processes for their preparation and use |
| 02/13/1991 | CA2023055A1 Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-sulfonic acid or salts thereof |
| 02/12/1991 | US4992596 Selected trinuclear novolak oligomers and their use in photoactive compounds and radiation sensitive mixtures |
| 02/12/1991 | US4992356 Positive photoresists |
| 02/12/1991 | US4992089 Herbicidal compounds, compositions and use |
| 02/12/1991 | CA1280123C Process for the preparation of perhalogenomethanesulfinic and -sulfonic acids, and of their salts |
| 02/11/1991 | CA2019673A1 Breaking emulsions of alkanesulfonyl chlorides in aqueous hydrochloric acid |
| 02/07/1991 | WO1991001327A1 Peptides containing diamino-glycols as transition-state mimics |
| 02/07/1991 | WO1991001295A1 Process for preparing quaternary ammonium compounds |
| 02/06/1991 | EP0412011A2 Process for preparing the piperazine salt of 2,5-dihydroxybenzenesulphonic acid monotosylate |
| 02/06/1991 | EP0411209A1 Decolorization of alkanesulfonic and arenesulfonic acids |
| 02/05/1991 | US4990664 Ethanolamine derivatives |
| 02/05/1991 | US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use |
| 02/05/1991 | US4990288 Transesterification of sulfonated fatty acid alkyl ester before salt formation |
| 02/05/1991 | US4990269 Anionic surfactant from alkylene oxide with reactive hydrogen components, such as polyols, acids, isocyanates, sulfonates, phosphates |
| 02/04/1991 | CA2022618A1 Process for preparing the piperazine salt of 2,5-dihydroxybenzenesulphonic acid monotosylate |
| 02/01/1991 | CA2005240A1 Decolorization of alkanesulfonic and arenesulfonic acids |
| 01/30/1991 | EP0410471A2 2-alkyl-4-methoxy-5-aminophenol or salt thereof, or 2-alkyl-4-methoxy-5-substituted aminophenol or salt thereof, and dyeing composition for keratin fibers comprising the same |
| 01/30/1991 | EP0410375A1 Process for producing sulfoalkyl-substituted hydroxylamines |
| 01/30/1991 | EP0410191A1 Fluorinated cyclohexane derivatives, process and intermediates for their preparation and use of the fluorinated cyclohexane derivatives as fungicide and intermediates |
| 01/30/1991 | CN1048848A Substituted bycycloheptandione derivatives |
| 01/30/1991 | CN1048845A Certain glyoxyl-cyclohexendiones |
| 01/29/1991 | US4988823 Fungicides, plant growth regulators, oxathianes |
| 01/29/1991 | US4988817 Process for preparation of quaternary ammonium and phosphonium substituted carbonic acid esters |
| 01/23/1991 | EP0409728A2 Bi-aromatic esters, process for their preparation and their use in human or animal medicine and in cosmetics |
| 01/23/1991 | EP0409350A2 Certain glyoxyl-cyclohexendiones |
| 01/23/1991 | EP0409172A2 Process for dimerizing aromatic halogen compounds |
| 01/23/1991 | EP0409145A2 Electrophotographic photoreceptor |
| 01/23/1991 | EP0408759A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups |
| 01/22/1991 | US4987249 2,4-pentanedione-1,5-disulfonic acid and method for preparing the same |
| 01/22/1991 | US4987138 Hypotensives |
| 01/22/1991 | CA2021499A1 Certain glyoxyl-cyclohexendiones |
| 01/19/1991 | CA2021339A1 Electrophotographic photoreceptor |
| 01/16/1991 | EP0408195A2 Solvent soluble dye |
| 01/15/1991 | US4985595 Aminobenzamide derivatives |
| 01/15/1991 | US4985591 Reaction Product of an Amine, Unsaturated Amide or Ester Containing a Sulfonic or Phosphoric Acid Group, and an Isocyanate |
| 01/15/1991 | US4985561 Sulfur trioxide sulfonation of aromatic chloroformates |
| 01/15/1991 | US4985180 Process for preparing phenyl esters of substituted acids |
| 01/10/1991 | WO1991000328A1 Improved basic calcium sulphonate |
| 01/10/1991 | WO1991000319A1 Coating compositions |
| 01/10/1991 | WO1991000269A1 Process for obtaining lower alkane sulphonic acids from their alkaline salts |
| 01/10/1991 | WO1991000268A1 Process for the production of light-coloured lower alkane sulphonic acids, especially methane sulphonic acid |
| 01/10/1991 | CA2063263A1 Coating compositions |
| 01/10/1991 | CA2062760A1 Improved basic calcium sulphonate |
| 01/09/1991 | EP0407074A1 Coating compositions |
| 01/09/1991 | EP0407032A2 Aromatic and heteroaromatic amines for treating depressions, cerebral insufficiency disorders or dementia |
| 01/09/1991 | EP0406848A1 Production of aromatic aldehydes |
| 01/08/1991 | US4983755 Nematocides |
| 01/05/1991 | WO1991000260A1 Substituted bicycloheptandione derivatives |
| 01/03/1991 | DE3921580A1 New N-substd. 4-amino-benzene sulphonamide cpds. and complexes - with antitumour agents, antibiotics, etc., are used for control of tumours, fungal infections etc. |
| 01/02/1991 | EP0405289A1 Process for the preparation of lower alkane sulfonic acids from their alkaline salts |
| 01/02/1991 | EP0405287A1 Process for the preparation of bright lower alkanesulfonic acids, especially methanesulfonic acid |
| 01/02/1991 | EP0405015A1 Reduction of the tendency of strong acids to form solid hydrates |
| 01/02/1991 | CN1048220A Polystyrenesulfonate |
| 01/01/1991 | US4981617 Process for the preparation of reaction products of epoxidized ricinoleic acid glycerides with sulfur trioxide |
| 01/01/1991 | US4981489 Disazo compounds and formulations containing same |
| 12/27/1990 | EP0404747A1 Novel polystyrenesulfonate |
| 12/27/1990 | EP0403947A2 Process for the preparation of aromatic sulfonic acid chlorides |
| 12/27/1990 | EP0403739A2 Photosensitive compounds and their preparation and use |
| 12/27/1990 | EP0403718A2 Products of styrene oxide |