Patents
Patents for C07C 303 - Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides (11,473)
06/1989
06/14/1989EP0319819A1 Process for obtaining solid or pasty products
06/14/1989EP0319767A2 Process for the preparation of trifluoromethane sulfonique acid chloride
06/13/1989US4839379 Aromatase inhibitors
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
06/06/1989US4836959 Process for the preparation of 1-aminonaphthalene-2,4,7-trisulphonic acid and 1-aminonaphthalene-7-sulphonic acid
05/1989
05/31/1989EP0317888A2 Fluorinated nitroalkyl compounds, and process for the preparation of fluorinated nitroalkyl compounds
05/30/1989US4835323 Hydroquinones
05/24/1989DE3819025A1 Process for the preparation of alkoxybenzene compounds
05/24/1989DE3738286A1 Process for the purification of organic acids or their salts
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
05/10/1989CN1032744A 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
05/05/1989WO1989001330A3 W-arylsulphonamidoalkanoic acids for treatment of thromboxane mediated diseases
05/03/1989EP0313939A2 Oxidation of thiols, disulfides and thiolsulfonates
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
05/02/1989US4826960 Novel reactions of bicyclic amide acetals with reactive protic compounds having the formula HN(R')YR2
05/02/1989US4826635 Composition and a process for the preparation of (hydroxy (organosulfonyloxy)iodo)arenes and their use in a regiospecific synthesis of diaryliodonium salts
05/02/1989US4826634 Fluorinated alkylamidosulphonates, their preparation, their use as flame retardants, and polycarbonate moulding compositions containing them
04/1989
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
04/12/1989EP0311521A1 Cephalosporin derivatives with improved pharmacokinetics, process for their preparation, pharmaceutical compositions containing them and intermediate
04/11/1989US4820820 Cationic surface-active compounds
04/11/1989US4820451 Process for the production of mobile pastes of washing-active α-sulfofatty acid ester salts of high solids content
04/11/1989US4820388 Polyalkylene glycol naphthyl-3-sulfopropyl diether compounds and their salts, process for preparing same and electroplating baths containing same
04/11/1989CA1252477A1 .gamma.-ALLENYL-.gamma.-AMINOBUTYRIC ACIDS
04/05/1989EP0310186A2 Oximino ether compounds
04/05/1989EP0310015A2 Renin-inhibiting dipeptides, process for their preparation, medicines containing them and their use
04/04/1989CA1252102A1 Herbicidal cyclohexane-1,3-dione derivatives
03/1989
03/29/1989EP0309392A2 Mono- and dichloro-4,4'-diaminodiphenyl-5,5'-disulfonic acids
03/29/1989EP0182017B1 Surface-active condensation products
03/28/1989US4816598 4-Amino-butanoic acid derivatives
03/28/1989US4816188 Process for the preparation of saturated/unsaturated mixed fatty acid ester sulfonates
03/22/1989EP0307879A2 Sulfonamido derivatives inhibiting the aldose reductase enzyme system and pharmaceutical compositions containing them
03/21/1989US4814485 4-aminobutanoic acid derivatives, process of preparation and use thereof
03/21/1989CA1251465A1 Process for preparing trifluoroacetic and trifluoromethane sulfonic acids
03/15/1989EP0239726B1 Process for the production of difluorochloromethoxybenzenes
03/14/1989US4812589 Polyol components in cast resin formulations
03/14/1989US4812555 Peptides possessing renin inhibitory activity
03/08/1989EP0306453A2 Process for the preparation of 2-(2-chloroethoxy)-benzosulfon amide
03/08/1989EP0305925A1 Process for the manufacture of conversion products of epoxidized ricinic-acid glycerides and sulphur trioxide
03/08/1989EP0305924A2 Process for the sulfonation and/or sulfatation of organic compounds with S03 in an organic reaction medium
03/08/1989EP0305648A1 Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid
03/08/1989CN1031530A Benzenesulfonyl carboxamide compounds, intermediate compounds and methods of preparation thereof and use of said compounds and intermediate compounds as herbicidal agents
03/07/1989CA1250834A1 5-fluoro-carbacyclins, process for their manufacture and their use as medicaments
03/01/1989EP0305041A1 Preparation of iodonium and sulfonium triflates
02/1989
02/28/1989US4808343 Mixing with alcohol, phase separation
02/23/1989WO1989001330A2 W-arylsulphonamidoalkanoic acids for treatment of thromboxane mediated diseases
02/22/1989EP0304271A2 Omega-arylsulphonamidoalkanoic acids for treatment of thromboxane medited diseases
02/22/1989EP0304139A1 Process for making 5-hydroxy-3-hydroxymethyl-2-phenylfuran derivatives
02/22/1989EP0304138A1 Process for making 1,3-dioxane derivatives
02/22/1989EP0303863A2 Benzenesulfonyl carboxamide compounds, intermediate compounds and methods of preparation thereof and use of said compounds and intermediate compounds as herbicidal agents
02/21/1989US4806147 Substituted 1-benzylsulphonyl-3-heteroaryl-(thio)urea herbicides
02/21/1989US4806141 Herbicidal compounds and compositions
02/21/1989CA1250306A1 Process for the preparation of acetylenic derivatives, derivatives thus made, and their use
02/15/1989EP0303466A2 Ethanolamine derivatives
02/15/1989EP0303181A2 1,2-Diamine compounds, process for their preparation as well as medicaments containing these compounds
02/14/1989CA1250000A1 Process for preparing crystalline salts of acetoacetamide-n-sulfofluoride
02/08/1989EP0302626A2 Insecticidal compounds
02/07/1989US4803201 Aphidicolane derivatives; viricides; antitumor agents
02/07/1989US4803015 Continuous process for the production of acyloxybenzenesulfonic acids
02/01/1989EP0301414A2 Surface active hydroxysulfonates
01/1989
01/31/1989US4801717 Hydroxylamine derivative of 5-nitro-8-hydroxy quinoline
01/31/1989US4801409 Hypofluorites and bis-hypofluorites, and process for preparing same
01/26/1989WO1989000558A1 AMINE SALTS OF ALKANE-1,n-DICARBOXYLIC ACID MONO-(2-SULFATO-ETHYL)AMIDES
01/25/1989EP0300969A2 Polyethylene glycol carbaminates
01/25/1989EP0300275A2 Process for the preparation of aminoaryl-sulphonic acids
01/24/1989CA1249301A1 Process for deoiling of olefin sulphonates
01/24/1989CA1249300A1 Process for the preparation of p- isononanoyloxybenzenesulphonate
01/24/1989CA1249272A1 Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids
01/18/1989EP0299370A2 Sulphatizated hydroxy-mixed ethers, process for their preparation and their use
01/17/1989US4798915 Process for the extraction of paraffins from mixtures thereof with alkane-sulfonic acids
01/17/1989CA1248706A1 N,n-diethyl-n'-aryl-n'-(dichlorofluoromethylthio)- sulphamides, a process for their preparation and their use
01/11/1989EP0298296A1 Polyalkylene glycol-naphthyl-3-sulfopropyl diethers and their salts, process for the preparation of these compounds and their use in the galvano technique
01/11/1989EP0298261A1 Process for the preparation of salts of aminomalonic dinitrile
01/10/1989US4797427 Esterification, hydrogenation
01/10/1989US4797152 Controlling grasses in crops
01/03/1989US4795596 Chemical intermediate for 6-hydroxy-naphthalene carboxylic acid/1-
01/03/1989US4795595 Preparing taurine-containing peptides by reacting a protected amino acid with cystamine, oxidation, deprotection
01/03/1989US4795487 Herbicidal cyclohexane-1,3-dione derivatives
01/03/1989CA1248128A1 Process for the preparation of o- carboethoxybenzenesulfonamide
12/1988
12/27/1988US4794172 Ceric oxidant
12/21/1988EP0295535A1 Sulfonates of polyoxyalkyl esters of fatty acids, process for their preparation and their use as tensides
12/20/1988US4792419 Ether sulfonates
12/20/1988CA1247127A1 Cyclohexane-1,3-dione derivatives and their use for controlling undesirable plant growth
12/14/1988EP0294668A2 (2-cyano-2-oximinoacetyl)-amino acid derivatives
12/14/1988EP0294667A2 (2-cyano-2-oximinoacetyl)-amino acid derivatives