Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
08/1982
08/17/1982US4345016 Homo- or copolymers of unsaturated sulfonyl hydroqinones as scavengers for oxidized developers; antifogging agents
08/17/1982US4344893 Substituted benzophenone hydrazones
08/17/1982US4344889 Process for the continuous preparation of sulfonates derived from molecules having long alkyl chains and, more particularly, sulfonates derived from fatty esters
08/17/1982CA1129877A1 Stabilized organic compositions
08/17/1982CA1129859A1 N-aryle oxazolidinones, oxazolidinethiones and pyrrolidinones, their process of preparation and their application in therapeutics
08/17/1982CA1129625A1 Method for separating sulphuric acid from the sulphoxide discharge arising during the reaction of paraffins with sulphur dioxide, oxygen and water in the presence of ultra-violet light
08/11/1982EP0057507A1 Difluoromethanesulphonic acid
08/10/1982US4343749 Chlorination of sulfonic acid with pyrocatechol-phosphorus trichloride, optional fluorination
08/03/1982US4342700 Oxidation-reduction reagents for a wet desulfurization process and a process for preparing same
08/03/1982CA1128937A1 Intermediates in the production of 2-benzazepines
07/1982
07/28/1982EP0056617A2 Cycloheptene derivatives, process and intermediates for their preparation, and pharmceuticals containing them
07/28/1982EP0056589A1 N-substituted anilides, process for their preparation and their use as fungicides
07/28/1982EP0056574A1 Naphthalenesulfonic acid compounds, their preparation and use as coupling components
07/27/1982US4341719 Process for the preparation of 1-amino-2-ethoxy-naphthalene-6-sulphonic acid
07/21/1982EP0056161A2 Hydroximic acid esters, their preparation and their use as fungicides
07/21/1982EP0056119A1 Substituted diphenyl ethers, herbicides containing them and their use as herbicides
07/21/1982EP0056092A1 Light sensitive composition based on o-naphtoquinone diazides and light sensitive copying material produced therefrom
07/20/1982US4340750 Process for producing fluorovinyl ether
07/13/1982US4339576 Anti-asthmatic, anti-allergic, anti-cholinergic, bronchodilator and anti-inflammatory 1-[(benzoylphenyl)-lower-alkyl]piperidines and analogs thereof
07/13/1982US4339396 Process for the preparation of naphthalenesulphonyl chloride
07/07/1982EP0055428A1 Bis-(3-sulfopropyl)ethers, process for their preparation and their use as alkylating agents for organic bases
07/06/1982US4338261 Sulfonation
06/1982
06/30/1982EP0054851A1 Process for recovering sulfuric acid from the reaction mixture issuing from the sulfoxidation of paraffins
06/30/1982EP0054724A1 Process for the simplified production of brightly coloured surface-active alpha-sulfofatty-acid esters
06/29/1982US4337333 Substituted polyisocyanate or polyisocyanate mixtures of the diphenyl methane series containing chlorosulfonyl groups
06/29/1982US4337215 Process for purifying 2-acrylamido-2-methylpropanesulfonic acid
06/29/1982US4337211 Intermediates for ion exchange resins
06/23/1982EP0054142A1 Process for preparing vinyl sulphonates
06/22/1982US4336268 Cyclohexene derivative analgesics
06/22/1982US4336148 Antistatic agents of vicinal diols
06/15/1982US4335246 For disperse dyes
06/15/1982US4335057 4-(2',2,2'-Trihalogenoethyl)-cyclobutane-1-sulfonic acid salts with optically active bases
06/09/1982EP0053314A1 Process for the chloro-sulphonation of biphenyl and diphenyl ether
06/08/1982CA1125309A1 Process for preparing benzene derivatives by reaction of an activated halobenzene with an oxygen- or sulfur-containing anionic organic reagent
06/01/1982US4332830 Sweetening with stevioside analogs
06/01/1982CA1124741A1 Process for preparing diaryl ethers
06/01/1982CA1124564A1 Black-and-white photographic elements containing a nondiffusible resorcinol coupler and silver halide developing agent
05/1982
05/26/1982EP0052599A2 Propargyl derivatives and their preparation
05/26/1982EP0052319A1 Process for the preparation of fluorides of perfluorinate sulphonic acids
05/26/1982EP0052311A1 1-((Benzoylphenyl) - lower-alkyl) piperidines and carbinol analogs and preparation thereof
05/26/1982EP0052307A1 Process for preparing 1-aminonaphthalene-4,6-disulphonic acid and 1-aminonaphthalene 2,4,6-trisulphonic acid
05/26/1982EP0052294A1 Process for the preparation of an anhydrous and an aqueous 3-chloro-2-sulfopropionic acid reagent and isolation of the acid
05/25/1982US4331613 Process for the preparation of trifluoromethylnaphthalenes
05/25/1982CA1124259A1 Petroleum sulfonates
05/19/1982EP0051783A1 Process for preparing 1,4-diamino-anthraquinone-2-sulphonic acid
05/18/1982US4330556 Microbicidal N-1'-hydrocarbyloxycarbonylethyl)-N-alkoxyacetylanilines
05/18/1982US4330488 Reacting anhydrous camphorsulfonic acid with sodium methylate then aromatic aldehyde
05/18/1982US4330294 Anthraquinone compounds and process for dyeing therewith
05/18/1982CA1123848A1 Distyrylbenzenes
05/11/1982US4329478 Catalysts for the cure or polymerization of cationic sensitive monomers
05/11/1982US4329435 Novel fluorinated copolymer with tridihydro fluorosulfonyl fluoride pendant groups and preparation thereof
05/11/1982US4329434 Novel fluorinated cation exchange membrane and process for producing the same
05/05/1982EP0050762A1 Process for the preparation of vinylcyclopropane derivatives
05/05/1982EP0012759B1 Stabilized petroleum sulfonate products and their use in subterranean oil recovery
05/04/1982US4328244 Novel (((substituted-phenyl)methyl)amino)benzenesulfonic acids and pharmaceutically-acceptable salts thereof
05/04/1982US4328169 Process for the preparation of vinylcyclopropane derivatives
04/1982
04/29/1982WO1982001367A1 Novel guanidine derivatives
04/28/1982EP0050534A1 Esters of cyclopropane-carboxylic acids related to pyrethric acid, their preparation and use as insecticides
04/28/1982EP0050286A2 Guanidine derivatives and pharmaceutical compositions containing them
04/28/1982EP0050186A1 A method for the preparation of vinyl compounds
04/27/1982US4327036 Chlorination process
04/27/1982US4327031 Anti-solar cosmetic composition
04/27/1982CA1122603A1 Process for the preparation of arylacetic acid derivatives
04/20/1982US4325887 Isocyanatoaryl sulfonic acid esters
04/20/1982CA1122222A1 Novel 1,2,4-triazolidine-3,5-dione derivatives
04/13/1982US4324742 Selective separation of isomers by crystallization
04/13/1982US4324741 Perfluoroalkyl group-introducing agents
04/06/1982US4323549 Anti-solar cosmetic composition
03/1982
03/30/1982US4322557 1-Aryloxy-2-(S)-hydroxy-3-(triarylphosphonio)-propane derivatives as prostaglandin intermediates
03/30/1982US4322494 Sensitizers for silver halide emulsions; zwitterions
03/30/1982US4322372 Condensation products containing sulphonic acid groups
03/30/1982CA1120952A1 Process for the manufacture of overbased magnesium sulfonates
03/30/1982CA1120944A1 Isocyanatoaryl sulphochlorides, a process for their preparation and their use in the preparation of polyisocyanate polyaddition products
03/30/1982CA1120942A1 .sup.m-anilide-urethanes
03/30/1982CA1120744A1 .beta.-NAPHTHYL AND .beta.-TETRAHYDRONAPHTHYL-PHENYL EHTERS
03/24/1982EP0048136A2 Process for preparing alpha-aromatic group substituted alkanoic acids or esters thereof
03/24/1982EP0047946A1 Process for the production of monohydro-perfluoroalkane-sulphonic-acid halogenides and some particular representatives of this family
03/24/1982EP0047945A2 Process for the production of perfluorocarbonyl-sulphonic-acid fluorides and the fluorosulphatoperfluoroalkane-sulphonic-acid halogenides resulting therefrom as intermediates
03/24/1982EP0047882A2 Dispersing compositions containing formaldehyde condensates
03/24/1982EP0047877A2 Biphenyl compounds and process for their preparation
03/23/1982US4321216 Carboxylic acid solvent, solvent extraction
03/23/1982US4321215 Process for extraction and neutralization of hydrocarbon sulfonic acids
03/23/1982US4321214 Extreme purification of sulfonic-type acids for processing to highly overbased metal sulfonates
03/17/1982EP0047450A1 Process for the production of naphthalene-2-sulphonic acid and naphthalene-2,6-and-2,7-disulphonic acids
03/16/1982CA1120054A1 Extraction process
03/10/1982EP0047126A2 Improved calcium sulphonate process
03/10/1982EP0046970A2 Partially esterified polyalcohols, possibly reacted with sodium sulphite, methods for their preparation and their use as non-ionic and/or anion-active tensioactive products kind to the skin
03/10/1982EP0046931A2 N-oxiamide, preparation thereof and use thereof as fungicide
03/09/1982US4318823 Containing 4-hydroxyalkane sulfonates
03/02/1982US4317920 Antirheumatic agents, antiinflammatory agents
02/1982
02/23/1982US4316862 By reacting an aromatic compound with chlorosulfonic acid and thionyl chloride
02/23/1982US4316860 Fluorescent brighteners
02/17/1982EP0046083A2 Photolabile blocked surfactants and compositions containing the same
02/17/1982EP0046028A2 Imaging process and article employing photolabile, blocked surfactant
02/17/1982EP0046005A2 Preparation of improved phenylalkylsulfonates
02/10/1982EP0045431A1 Process for the side-chain bromination of toluenes and mixtures of toluenes diversly highly brominated in the side chain
02/09/1982US4314950 Sulfonation; phosgenation
02/09/1982US4314820 Distyrylbenzene fluorescent brightening agents
01/1982
01/26/1982US4312631 Surface-active compounds based on natural rosin acids
01/26/1982CA1117122A1 Herbicidal compositions