Patents
Patents for C07C 301 - Esters of sulfurous acid (2,612)
03/1992
03/10/1992CA1297122C Hypofluorites and bis-hypofluorites, and process for preparing same
02/1992
02/25/1992CA1296359C Process for extracting paraffins from their mixtures with alkanesulphonic acids
02/25/1992CA1296358C Process for removing paraffins from their mixtures with paraffinsulphonic acids
02/25/1992CA1296357C Process for extracting paraffins from their mixtures with paraffinsulphonic acids
02/25/1992CA1296355C Process for preparing fluoroaliphatic ether-containing carbonyl fluoride compositions
02/25/1992CA1296335C Dichloroaniline derivatives
01/1992
01/28/1992CA1295086C 4-aminobutanoic acid derivatives, process of preparation and usethereof
01/28/1992CA1294977C Hair treatment preparations
01/21/1992US5082832 Pesticides
12/1991
12/11/1991CN1015055B Process for preparation of indole derivative and its modical use
12/11/1991CN1015044B Preparation of 2-(2-nitrobenzoyl)-1, 3-cyclohexadione compounds, and uses thereof
12/03/1991CA1292750C Certain 3-(substituted thio)-2-benzoyl-cyclohex-2- enones
11/1991
11/19/1991US5066801 Preparation of sulfonic acid esters
11/19/1991US5066675 Alkynyl substituent, agricultural use
11/19/1991CA1292236C Process for preparing n-alkylated amino acids and esters thereof
11/12/1991CA1292013C Process for the preparation of acyloxybenzenesulfonic acids and their salts
11/12/1991CA1292008C Polyhydroxyl compounds containing a sulfonic acid ester group
11/12/1991CA1291991C Antioestrogenic phenol derivatives
11/05/1991US5062997 Of unsaturated fatty acids or esters
11/05/1991CA1291756C Certain substituted 3-amino-2-benzoylcyclohex-2- enones
10/1991
10/29/1991CA1291488C Modified fluorocarbonylimino biurets
10/22/1991US5059711 Oxidizing bis(trifluoromethyl) disulfide in liquid phase
10/22/1991CA1291165C Alkylsulfonamidophenylalkylamines
10/22/1991CA1291163C Benzenesulfonamido derivatives
10/22/1991CA1291161C Preparation of anhydrous alkanesulfonic acid
10/16/1991EP0451873A1 Derivatives of 2,2-dimethyl cyclopropanecarboxylic acid substituted at c-3 by a saturated halogenated chain, process for their preparation and their use in the synthesis of pesticidal products
10/08/1991US5055610 Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
10/01/1991CA1289945C Intermediates
09/1991
09/17/1991CA1289149C PROCESS FOR SOLID ALKALI METAL SALTS OF .alpha. SULFOFATTY ACID ALKYL ESTERS
09/17/1991CA1289078C Pharmaceutical composition for the treatment of parkinson's disease
09/11/1991EP0445843A2 Process for the preparation of cyclopropanecarboxylic acid derivatives substituted at position 3 by a saturated halogenated chain
09/10/1991US5047580 Process for the separation of sulfuric acid from aqueous mixtures of paraffin-sulfonic acids
09/03/1991US5045573 Photoinitiators for photopolymerization of unsaturated systems
09/03/1991US5045537 Hydrophilic renin inhibitors, their preparation and use
08/1991
08/27/1991US5043456 6-oxa and thiabicyclo [3.1.0.] compounds
08/27/1991US5043451 Bicyclo (2.2.1.) hept-exo-2-yl and bicyclo (2.2.2.) oct-endo-2-yl compounds
08/27/1991US5043347 Indanes and analgesic compositions and methods thereof
08/27/1991US5043089 P-sulphophenyl alkyl carbonates and detergent compositions and detergent additives containing these compounds
08/27/1991CA1288109C Surfactant
08/27/1991CA1288107C Leukotriene antagonists
08/20/1991US5041681 Chemical process
08/20/1991US5041636 Urea derivatives
08/20/1991US5041635 5(Z)-7-(endo-3-benzenesulfonamidobicyclo[2.2.1]hept-exo-2-yl)-5-heptenoic acid, sodium salt
08/20/1991US5041632 Process for the preparation of 4,4'-dinitrostilbene-2,2-disulfonic acid
08/20/1991CA1287840C Process for preparing alkyl-sulphonyl chlorides and arylalkyl-sulphonylchlorides
08/20/1991CA1287839C PROCESS FOR THE PRODUCTION OF MOBILE PASTES OF WASHING-ACTIVE .alpha.-SULFOFATTY ACID ESTER SALTS OF HIGH SOLIDS CONTENT
08/13/1991US5039710 Viricides, antitumor agents
07/1991
07/24/1991CN1013277B Improved addictive agent for fuel oil
07/17/1991CN1013198B Anti-tumour sulfonylurea deriv. preparing process
06/1991
06/25/1991US5026710 Fungicides
06/25/1991CA1285290C Methods for preparing group ii metal overbased sulfurized alkylphenols
06/25/1991CA1285286C Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts
06/25/1991CA1285285C Process for the preparation of an azidosulphonylbenzoic acid
06/11/1991US5023370 Fluorinated carboxy sulfonates
06/04/1991US5021414 Phenol derivatives
05/1991
05/14/1991US5015762 Alkoxy substituted ureas as herbicides
05/08/1991CN1012576B Process for preparing carboxanilides compounds
05/08/1991CN1012575B Preparation of alkanoyl anilides
05/07/1991US5013723 New thymopentin retro-inverso analogs and fragments thereof, a process of preparation of the new compounds and the intermediates obtained therein
05/07/1991CA1283926C Process for making 1,3-dioxane derivatives
05/07/1991CA1283918C Carboxanilides
05/07/1991CA1283917C Amino acid derivatives having anti-tumor activity and compositions containing them
04/1991
04/30/1991US5011983 Preparation and reactions of omega-halosulfonyl perfluoroalkanesulfonates
04/30/1991US5011973 Reacting A Trimethylammonium Salt With A Naphthalenedisulfonic Acid; Useful For Enhancing The Digestive Function
04/23/1991CA1283499C Peptides
04/23/1991CA1283424C Process for the preparation of 5-fluorotoluene-2,4- disulphochloride
04/16/1991US5008442 Surface-active compounds on the basis of arylated fatty substances and their use
04/09/1991CA1282787C Synthesis of aryloxypropanolamines and arylethanolamines
04/02/1991CA1282549C Aminocarbonyl renin inhibitors
03/1991
03/26/1991CA1282077C Process for producing substituted-phenethylamine derivatives
03/19/1991US5001261 Cyclohexenone derivatives and their use for controlling undesirable plant growth
03/19/1991CA1281738C Process for the preparation of acyloxybenzenesulfonic acids and salts thereof
03/19/1991CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines
03/12/1991CA1281332C Insecticidal n'-substituted-n,n'-diacylhydrazines
03/05/1991US4997535 From methane, sulfur dioxide and chlorine
03/05/1991CA1281032C Process for the preparation of benzylidene compounds
02/1991
02/26/1991CA1280766C Compounds and compositions
02/19/1991US4994612 Ylidene sulfonamide derivatives
02/19/1991US4994483 5-substituted-3-aminoalkyl indole derivatives for migraine
02/12/1991US4992547 Aminoaryl ketone photoinitiators
02/12/1991US4992089 Herbicidal compounds, compositions and use
02/12/1991CA1280123C Process for the preparation of perhalogenomethanesulfinic and -sulfonic acids, and of their salts
02/06/1991EP0201563B1 Aqueous systems containing amino sulfonic acid derivatives of carboxylic acids
02/05/1991US4990668 Reacting selected dioxolane with hydrohalic acid and organic acid, then with amine
02/05/1991US4990664 Ethanolamine derivatives
02/05/1991US4990637 Chemical intermediates
02/05/1991US4990288 Transesterification of sulfonated fatty acid alkyl ester before salt formation
01/1991
01/22/1991US4987152 Use of sulfamoyl-substituted phenethylamine derivatives in treatment of lower urinary tract dysfunction
01/22/1991US4987138 Hypotensives
01/15/1991US4985595 Aminobenzamide derivatives
01/08/1991US4983769 Perfluoroalkylamine oxides and use of these products in fire extinguishing compositions
01/08/1991US4983755 Nematocides
01/02/1991CA1278577C Bicyclic sulfonamide derivatives
01/01/1991US4981489 Disazo compounds and formulations containing same
12/1990
12/26/1990CN1048040A Ethanolamine derivatives
12/25/1990US4980509 Aromatic polycyclic derivatives, their process of preparation and their use in human and veterinary medicine and in cosmetics
12/18/1990US4978780 Preparation of ether sulfonates and polyglycol ether sulfonates, and products prepared by this method
12/11/1990US4976891 Bicyclic sulfonamide derivatives
12/11/1990CA1277678C Bechamp reduction of dns to das using h2so4 and trace of hoac
12/04/1990CA1277326C Benzoic acid and benzoic acid ester derivatives having anti-inflammatory and analgesic activity
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