Patents
Patents for C07C 301 - Esters of sulfurous acid (2,612)
01/1990
01/16/1990US4894094 Disazo compounds and formulations containing same
01/09/1990US4892969 Reduction of hydroxylimino-tetralone-sulfonic acid, copper catalyst
01/09/1990US4892968 3,3'-Dichloro-4,4-diaminodiphenyl sulfonic acids
01/02/1990US4891155 Preparation of alkyl aryl sulfonate concentrates having low viscosity
12/1989
12/26/1989US4889870 2-(2,2-Difluorocyclopropyl)alkyl esters, processes for their preparation and their use as insecticides and acaricides
12/26/1989US4889851 Bone disorders
12/26/1989US4889656 Surfactants
12/05/1989US4885404 High yields
12/05/1989CA1263656A1 Aryloxycycloalkanolaminoalkylene aryl ketones
12/05/1989CA1263650A1 Substituted piperazine-1, 4-naphthalenediones
11/1989
11/28/1989US4883612 Preparation of para-acyloxybenzene sulfonates
11/21/1989CA1263123A1 CONTROL OF DISALT IN .alpha.-SULFOFATTY ACID ESTER SURFACTANTS
11/14/1989US4880780 Respiratory system disorders
11/14/1989CA1262916A1 Preparation of surfactants
11/07/1989USRE33109 Chalcone derivatives
11/07/1989US4879383 Urea derivatives
11/07/1989US4879314 Fungicides, insecticides, bactericides
11/07/1989CA1262683A1 Use of certain compounds in livestock food as growth promotants for better feed utilization and improved carcass composition
10/1989
10/31/1989CA1262554A1 Process for the preparation of 4,4'-dinitrostilbene-2, 2'-disulphonic acid salts
10/24/1989US4876381 Naphthalene derivatives possessing a retinoid-type action, processes for their preparation, and medicinal and cosmetic compositions containing these derivatives
10/24/1989US4876047 Reacting nonolefinic compound anhydrously with sulfonating agent, then with nitrile and water
10/17/1989US4874892 Process for the preparation of 6-hydroxynaphthalene-1-carboxylic from 1-aminomethylnaphthalene-6-sulphonic acid
10/17/1989US4874552 Mixing with hydrogen peroxide and alkali metal carbonate
10/17/1989CA1262354A1 Improved sealing process and sealing agents for aluminum
10/10/1989US4873338 Process for the preparation of 2-amino-5-acylamino phenols and starting compounds suitable therefor
10/10/1989US4873169 Reacting naphthoquinone diazide sulfonic acid halide with mono- or polyvalent phenolic compound
10/10/1989US4873027 Fluoroalkylaryliodonuim compounds
10/10/1989US4873026 Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and 1-aminonaphthalene-7-sulphonic acid
10/10/1989US4873025 Alkylxylene sulfonate compositions
09/1989
09/26/1989CA1261872A1 Herbicidal cyclohexane-1,3-dione derivatives
09/26/1989CA1261866A1 P-sulphophenyl carbonates and detergent compositions and detergent additives containing these compounds
09/19/1989US4868338 Method for acylating a naphthalene compound
09/19/1989US4868331 Anticoagulants, antiatherosclerotic, antiischemic
09/19/1989US4868216 Sulfamoyl-substituted phenethylamine derivatives and process of producing them
09/19/1989CA1259627A1 PREPARATION OF .alpha.-ARYLALKANOIC ACIDS
09/13/1989EP0161482B1 Fluorinated aniline derivatives and their use
09/12/1989US4866190 Reacting a metal hydroxymethanesulfinate with a perhaloalkyl halide
09/12/1989US4865774 Surface-active hydroxysulfonates
09/12/1989CA1259243A1 Aqueous systems containing amino sulfonic acid derivatives of carboxylic acids
09/05/1989US4864052 2,2-Dimethylcyclopropane-carboxylic acid derivatives
09/05/1989US4864018 Anthraquinone derivatives and their use as protein absorbents
08/1989
08/29/1989US4861916 Photoinitiators for photopolymerization of unsaturated systems
08/29/1989US4861913 Bicyclic sulfonamide derivatives
08/29/1989CA1258863A1 Cyclohexane derivatives
08/23/1989EP0328824A2 Sulfonic acid esters useful as sensitizers for positive resists
08/22/1989US4859800 Phenoxyacetate peracid precursors
08/22/1989US4859773 Preparation of 1,8-bridged 4-quinoline-3-carboxylic acids
08/22/1989US4859374 Sulfosuccinamido acids of polyoxypropylenediamines and their use as emulsifiers
08/22/1989US4859373 Process for the production of alkanesulphonic acids
08/22/1989US4859372 In presence of hydrogen halide
08/15/1989CA1258456A1 Aryl or hetero-aryl derivatives of 1-hydroxy-pentane or 1-hydroxy-hexane for treating inflammation and allergies
08/01/1989US4853382 Treating asthma and bronchitis
08/01/1989US4853315 For low optical density; shorter wave lengths
07/1989
07/25/1989US4851528 Anthraquinone derivatives
07/25/1989CA1257875A1 N, n'-bis(sulfonyl) hydrazines having antineoplastic activty
07/25/1989CA1257868A1 Oxime sulfonates containing reactive groups
07/11/1989US4847273 Dihydropyridine derivatives
07/11/1989CA1257283A1 PROCESS FOR PREPARING .alpha.-SUBSTITUTED- ALKYLARYLKETALS
07/04/1989US4845284 Sensitizers
07/04/1989US4845128 N([(4-trifluoromethylphenyl)amino]carbonyl)benzene sulfonamides
07/04/1989CA1256894A1 Naphtalenic derivatives, their preparation, and cosmetic composition including same
06/1989
06/27/1989US4843184 Process for extracting paraffins from their mixtures with paraffinsulfonic acids
06/27/1989CA1256378A1 Pharmaceutical composition containing at least one naphtalenic derivative as active principle
06/13/1989US4839427 Resin systems cured with blocked acid catalysts
06/13/1989US4839379 Aromatase inhibitors
06/13/1989US4839256 Perfluoroalkyl group-containing 1,2-napthoquinone daizide compounds and reproduction materials produced therefrom
06/13/1989CA1255695A1 Process for the production of polyalkylaromatic polysulfonic acids and recovery by heavy phase separation
06/06/1989US4837350 Process for the preparation of benzoin sulfonates
06/06/1989US4837330 Reacting an adduct of a base having a tertiary n atom and sulf ur trioxide with an alkylene oxide
06/06/1989US4837229 5-aminosalicylic acid-O-sulfates of physiologically acceptable bases, process for the preparation thereof and drugs containing same
06/06/1989US4837136 Silver halide photographic materials comprising non-diffusible photographically useful compounds
05/1989
05/31/1989EP0317888A2 Fluorinated nitroalkyl compounds, and process for the preparation of fluorinated nitroalkyl compounds
05/30/1989US4835323 Hydroquinones
05/30/1989US4835300 Fluorine containing urethane compounds
05/30/1989US4835227 Blocking sulfonic acids with glycidamides
05/24/1989CN1033047A Oximino ether compounds
05/23/1989US4833252 Intermediates for sulfonyl urea herbicides
05/23/1989US4833151 Insecticidal Ureas and thioureas
05/23/1989US4832876 Sulfation, esterification, hydrolysis
05/23/1989CA1254698A1 Method for synthesizing esters
05/23/1989CA1254583A1 Process for producing sulphonic acids
05/23/1989CA1254567A1 Substituted hexahydropyrrolo¬1,2-a|quinoline, hexahydro-1h-pyrido¬1,2-a|quinoline, hexahydrobenzo¬e|indene and octahydrophenanthrene cns agents
05/16/1989US4830775 Zinc and/or lead salts of carboxylic acids and their use as corrosion inhibitors
05/16/1989US4830715 Functionalization of iodopolyfuorgalkanes by electrochemical reduction
05/16/1989CA1254223A1 Fluorosurfactants containing polyglycidyl groups
05/10/1989CN1032744A Improvements in or relating to a toy or plaything
05/09/1989CA1253877A1 Process for the preparation of carboxylic acid esters of hydroxy sulfonates
05/09/1989CA1253859A1 10-aryl-1,8-dihydroxy-anthrones and esters thereof; process for preparing the same
05/09/1989CA1253669A1 Generation of sulphur trioxide from oleum
05/03/1989EP0314380A1 Perfluoro(cycloaliphatic methyleneoxyalkylene)carbonyl fluorides and derivatives thereof
05/02/1989US4827078 Process for extracting paraffins from their mixtures with alkanesulfonic acids
05/02/1989US4827015 Process for the production of aminomalonic acid dinitrile salts
05/02/1989US4826634 Fluorinated alkylamidosulphonates, their preparation, their use as flame retardants, and polycarbonate moulding compositions containing them
04/1989
04/25/1989US4824477 Trifluoromethanesulfonanilide compounds and herbicidal compositions containing them
04/25/1989CA1253171A1 Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts
04/19/1989EP0311961A2 Process for the preparation of ether and polyglycol ether sulfonates, and products prepared by this process
04/19/1989EP0311893A2 Process for the preparation of 2,5-bis-(aminoarylamino)benzoquinones
04/18/1989US4822502 Imidazoline promoter overbased calcium sulfonates
04/18/1989CA1252794A1 Benzamide derivatives
04/11/1989US4820820 Cationic surface-active compounds
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