Patents
Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484)
02/1979
02/07/1979EP0000495A1 Process for the preparation of 1-amino-8-hydroxy naphthalene-3,6-disulphonic acids (H-acids).
02/07/1979EP0000493A1 Process for the preparation of 1-amino-8-hydroxy-naphthalene-3,6-disulphonic acid (H acid).
02/06/1979US4138409 Epoxysultone
01/1979
01/30/1979US4137273 Phenolic ethers
01/30/1979US4137257 Resolving agents, surfactants
01/30/1979US4137251 Levelling agents in the dyeing or printing of polyamide fibers
01/30/1979US4137244 Asymmetric synthesis of optically active prostaglandins
01/30/1979US4137186 Process for the manufacture of overbased magnesium sulfonates
01/30/1979CA1047438A1 Preparation of sulfonic acids derived from paraffinic hydrocarbons by s02 and 02 hydroinjection
01/16/1979US4134909 Thermoplastic resin stabilizers
01/10/1979EP0000264A1 The production of highly basic calcium sulphonates.
01/10/1979EP0000155A1 Continuous production of 1-naphthalene sulphonic acid and 1,5-naphthalene disulphonic acid
01/09/1979US4133828 Manufacture of dimethylaminobenzenesulfonates
01/09/1979US4133818 Lactonization, hydrolysis
01/02/1979US4132786 Antiemetics, anticonvulsants, anesthetics, antibiotics
01/02/1979US4132730 Complement inhibitors
12/1978
12/26/1978US4131736 Polymers of sulfonic acid monomers
12/26/1978US4131684 Hydroxynaphthalenesulfonic acids
12/26/1978US4131625 4,4'-Bis(3-ethynylphenoxy)diphenylsulfone
12/26/1978US4131619 From toluene; sulfonation, chlorination
12/26/1978CA1045028A1 Micellar dispersions via sulfonating whole or topped crude
12/19/1978US4130581 Preparing J acid by fusion using phenolic fluxing agent
12/12/1978US4129591 Inhibitors of the complement system
12/12/1978US4129590 Ureylenebis(anionic substituted phenylene carbonyl)imino naphthalene sulfonic acids and naphthalene carboxylic acids and their salts
12/05/1978US4128584 Hydrolysis
12/05/1978CA1043815A1 PROCESS FOR PREPARING .alpha.-AMINOALCOHOLS
11/1978
11/28/1978US4127736 2-Hydroxyethyl-3-cyclopenten-1-ols and derivatives thereof
11/28/1978US4127602 Methyl substituted hydroxynaphthalenesulfonic acid ureides and salts as complement inhibitors
11/28/1978US4127581 Method for the preparation of 3-phenyl-5-substituted-4(1H)-pyridones
11/28/1978CA1043351A1 Phenolic menthene derivatives, process for their preparation and therapeutic composition containing same
11/28/1978CA1043347A1 Substituted o-alkylsulfonylglycolic acid anilides
11/21/1978US4126646 Thermostable flameproofing agent for copolyesters, process for making it, copolyester compositions prepared by using it, process for said compositions, and formed bodies made from said compositions
11/21/1978US4126631 β-Carbonylpolyfluoroalkyl sulfonate esters
11/21/1978US4126461 Black-and-white photographic elements and processes
11/21/1978CA1042916A1 Method of making acyl esters of hydroxy alkane sulfonates
11/14/1978US4125732 2-Aryloxy-2-(phenoxyalkoxy)phenyl acetic acid and esters
11/14/1978US4125612 N-1-(p-Biphenylalkyl)piperazines and their use as anti-inflammatory agents
11/14/1978US4125555 Trifluoromethanesulfonates
11/07/1978US4124606 Sulfonation of anthraquinone in sulfur dioxide solvent
10/1978
10/31/1978US4123455 Complement inhibitors
10/31/1978CA1041538A1 Manufacture of sulphobetaines
10/31/1978CA1041537A1 Sulphonic derivatives having the structure of polyoxapolyfluoroalkanes and processes for the preparation thereof
10/24/1978US4122266 Reaction of aryl sulfonic acid ester and amines
10/24/1978CA1041035A1 Process for the electrochemical fluorination of organic acid halides
10/17/1978US4120897 2-Alkyl-1-naphthol-4-sulfonic acids
10/17/1978US4120891 Complement inhibitors
10/17/1978CA1040649A1 Fluorinated sulfosuccinates
10/10/1978US4119661 Process for producing alkali salts of alkylsulphonic acids
10/10/1978US4119658 Reacting isocyanates with sulfur trioxide
10/10/1978CA1040206A1 Phenylsulphinyl-amidine derivatives
09/1978
09/26/1978US4117237 Unsymmetrical sulfosuccinate diesters
09/26/1978US4117003 Substituted aromatic naphthalene sulfonamides
09/26/1978US4116934 Arylsulfonic acid bromophenyl esters, their preparation, and their use as flameproofing agents
09/26/1978US4116873 Lubricating oil composition containing Group I or Group II metal or lead sulfonates
09/19/1978US4115648 Hypocholesterolemic, hypotriglycidemic, hypolipidemic
09/19/1978US4115547 Sunscreening compositions
09/19/1978US4115452 4,5, Substituted cyclopentane-1,3-diols
09/19/1978US4115437 Surfactants, emulsifiers
09/19/1978US4115436 Process for producing ammonium p-styrenesulfonate
09/19/1978US4115435 Bisulfite terminated oligomers as dispersing agents
09/19/1978US4115099 Antidote compositions and method of use with herbicides
09/12/1978US4113765 Continuous process for sulfonating alkyl aromatics
09/12/1978US4113438 Sulfonating apparatus
09/05/1978US4111994 Acid hydrolysis
09/05/1978US4111988 4-(2,2-Dichloro-1,1-difluoroethoxybenzene) sulfonyl chloride and its preparation
09/05/1978US4111979 From naphthalene, sulfonation, nitration, reduction, alkali fusion, acidification, precipitation
09/05/1978US4111651 Sulfonic anhydrides in peroxygen bleaching
08/1978
08/29/1978US4110373 Process for the preparation of benzoyl halide and halosulfonylbenzoyl halide
08/29/1978US4110367 Sulfonated alkylphenoxy acetones
08/29/1978US4110366 Process for producing alkali metal styrenesulfonate
08/29/1978US4110074 Mixed carboxylic/sulfonic anhydrides in peroxygen bleaching
08/29/1978CA1037491A1 Acyl-phenoxy-propanesulfoacids and salts, and artificial sweetening compositions containing the same
08/22/1978US4108926 4,4*-bis(3-ethynylphenoxy)diphenyl sulfone
08/22/1978US4108890 Nitro or amino phenylenebis(carbonylimino)dinaphthalenetrisulfonic compounds as complement inhibitors
08/22/1978US4108887 Divinyl stilbenes as optical brighteners
08/22/1978CA1037057A1 Sulfonyl containing fluorocarbon vinyl ether and ion exchange membrane formed therefrom
08/15/1978CA1036619A1 Process for optical resolution of racemic lysine sulphanilate
08/08/1978US4105692 Process for the preparation of benzenesulphonyl chloride
08/08/1978US4105680 Decarboxylation
08/01/1978US4104423 Corrosion inhibitors
07/1978
07/25/1978US4103028 Substituted hydroxy naphthalenedisulfonic acids
07/25/1978US4102948 ω-Aminocarboxylic acid amide phosphates
07/25/1978US4102918 Anionic phenylcarboxamide complement inhibitors
07/11/1978US4100200 Use of novel ethers as oxydimethylating agents
07/04/1978US4098904 Analgesic n-(2-aminocycloaliphatic)benzamides
07/04/1978US4098811 Wetting agents
07/04/1978US4098806 Process for functionalizing perfluorohalogenoalkanes
06/1978
06/20/1978US4096175 Extraction method
06/20/1978US4096154 Process for the manufacture of compounds containing vinyl groups
06/20/1978US4096089 Salt of sulfonated styrene oligomer, method of preparation thereof, and use thereof as dispersing agent and viscosity reducer
06/13/1978US4094911 Poly(perfluoroalkylene oxide) derivatives
06/13/1978US4094898 Process for the preparation of sodium methallyl sulfonate
06/06/1978US4093646 Reduction of nitro compounds with aqueous solutions of a formate
05/1978
05/30/1978US4092347 1-Chloro-prop-2-ene-3-sulfonic acid compounds and their manufacture
05/30/1978US4092346 Acyl-phenoxy-propanesulfoacids and salts, and artificial sweetening compositions containing the same
05/23/1978US4091014 Process for making ether sulfonates
05/23/1978US4091013 From 1-chloro-naphthalene-4,7-disulfonic acid and ammonia, copper catalyst
05/16/1978US4089894 Sulfonated alkylphenoxy 2 to 5-carbon-atom alkanoic acids and salts
05/09/1978US4088683 Polysulfone starting material
05/09/1978US4088680 Linear alkyl hydrocarbyloxybenzene disulfonates