Patents
Patents for C07C 319 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides (8,304)
02/1992
02/05/1992CN1058393A Process for preparing thioglycollic acid-2-ethyl hexyl ester
02/02/1992WO1992002519A1 Process and intermediate for the preparation of 2-hydroxy-3-sulfido-3-phenyl propanoic acids
02/02/1992CA2088355A1 Process and intermediate for the preparation of 2-hydroxy-3-sulfido-3-phenyl propanoic acids
01/1992
01/29/1992EP0468927A2 Derivatives of carboxymethylcyclopropane
01/29/1992EP0468581A1 Process for the preparation of 2,6-di-t-butyl-4-mercaptophenol
01/29/1992EP0467957A1 Mercapto-acylamino acids
01/28/1992US5084548 Fluorinated poly(ether sulfone)
01/28/1992CA2047901A1 Carboxymethylcyclopropane derivatives
01/28/1992CA1294986C Process for preparing mercaptoalcohols
01/21/1992US5082966 Oxidation, amination, bactericide intermediates
01/21/1992US5082945 Process for the preparation of perhaloalkylthioethers
01/21/1992CA1294628C Process and catalytic system for preparing organic polysulfides
01/21/1992CA1294611C Sulfur-containing compositions, and additive concentrates, lubricating oils and metal working lubricants containing same
01/15/1992EP0466319A1 Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts
01/14/1992US5081277 Process for the preparation of propionic acid derivatives
01/14/1992US5081249 From gaseous fluorine and solution of pyridinesulfonate
01/08/1992EP0465369A1 N-substituted derivatives of alpha-mercapto alkylamines, process for their preparation and intermediates obtained, their use as medicaments and compositions containing them
01/08/1992EP0464381A2 2-Methoxyiminocarboxylic acid esters
01/08/1992CN1057647A 3, 3 dithiobis (propionic acids) and esters thereof
01/06/1992CA2046264A1 Alpha-mercapto alkylamine n-substituted derivatives, a process for their preparation and intermediate products, their application as pharmacological substances and compositions holding same
01/02/1992EP0463514A1 3.3'-Dithiobis (propionic acids) and esters thereof
12/1991
12/31/1991US5077439 Process for the preparation of halo-aliphatic aldehydes
12/29/1991CA2045289A1 3,3'-dithiobis(propionic acids) and esters thereof
12/26/1991WO1991019695A2 Liquid crystal thiol compounds
12/26/1991CA2064875A1 Liquid crystal thiol compounds
12/24/1991US5075335 Enzyme inhibitors
12/18/1991EP0461797A1 Herbicidal oximethers
12/10/1991US5072017 Process for the preparation of p-substituted o-benzylphenols
12/10/1991US5071640 Cosmetic composition containing a polyoxyethylenated non-ionic surface-active agents with two lipophilic chains
12/04/1991EP0459854A1 Use of thio-ether ligands for the isolation of palladium from aqueous solutions, particularly from nitric solutions of the irradiated nuclear fuel elements dissolution
12/04/1991EP0459125A1 Process for the preparation of diols containing perfluoroalkylrests and polyurethanes.
12/04/1991CN1056714A Use of thioether ligands for separating palladium from aqueous solutions
11/1991
11/27/1991EP0458684A1 Reagent and process for the perfluoroalkylation of nucleophilic substrates by sodium perfluoroalkanesulfinates in an oxidising medium
11/26/1991US5068445 Process for the preparation of organic disulphides and polysulphides
11/19/1991CA1292242C Catalytic process for the production of mercaptans from thioethers
11/16/1991CA2042428A1 Use of thioether ligands for separating palladium from aqueous solutions and in particular nitric solutions for dissolving irradiated nuclear fuel elements
11/13/1991CN1056100A Method of producing alkanesulfonanilide derivatives
11/12/1991US5064860 Disease therapy
11/12/1991CA1291958C Method for eliminating reentry disulfides in a mercaptan extraction process
11/06/1991EP0454863A1 Method for the preparation of beta-hydroxyketones.
11/05/1991US5062977 Sulphur-containing additives to lubricants with antiwear and extreme-pressure effect and the processes for their preparation and compositions containing the said additives
10/1991
10/30/1991EP0454624A1 Process for the production of 1,3-diketones
10/30/1991EP0454623A1 Process for the production of linear 1,3-diketones
10/30/1991EP0454494A2 Calicheamicinone, derivatives and analogs thereof and methods of making the same
10/30/1991EP0454146A1 Cytotoxic bicyclo[7.3.1] tridec-4-ene-2,6-diyne compounds and process for the preparation thereof
10/30/1991EP0453841A2 Process for the preparation of esters of 1-alcoxyhexatriene-2-carboxylic acid
10/28/1991CA2040855A1 Cytotoxic bicyclo¬7.3.1| tridec-4-ene-2,6-diyne compounds and process for the preparation thereof
10/28/1991CA2039789A1 Calicheamicinone, derivatives and analogs thereof and methods of making the same
10/27/1991CA2041134A1 Process for the preparation of linear 1,3-diketones
10/23/1991EP0452729A1 Process for preparing substituted cyclobutanes
10/23/1991EP0452302A1 Preparation on ortho-(alkyl- or arylthio)phenols
10/22/1991US5059723 Efficiency; purity
10/22/1991US5059623 Fungicides
10/22/1991CA1291159C Method for production of cystine from cysteine
10/17/1991CA2040485A1 Process for preparing substituted cyclobutanes
10/15/1991US5057622 From alkyl mercaptan and acrylic acid
10/15/1991US5057567 Mixed 3-alkylthiopropionic acid esters with pentaerythritol
10/09/1991CN1014238B Process for desulfurizing organic polysulfides
10/08/1991US5055606 Dissolving in and recrystallizing from mixture of lower aliphatic alcohol and lower aliphatic acid ester
10/08/1991US5055225 High speed response
10/08/1991CA1290325C Protic solvent in a dehydrohalogenation process, the product obtained therefrom and lubricant compositions containing same
10/01/1991US5053549 Acid resistance, stability
09/1991
09/25/1991EP0448427A1 Ester derivatives of 3-[2-cyano-2-haloethenyl]-2,2-dimethylcyclopropanecarboxylic acid, process for their preparation and their use as pesticides
09/18/1991EP0446971A1 Process for the preparation of substituted sulphonic acids and/or sulphonates
09/18/1991EP0446719A1 Amino phenoxy compounds and process for their preparation
09/18/1991EP0446661A1 Process for producing alkylthio- and arylthio-substituted carboxylic acids and their thioesters
09/17/1991US5049279 Selective extraction of amino acids
09/17/1991CA2038392A1 Process for producing alkylthio- and arylthio-substituted carboxylic acids and their thioesters
09/11/1991EP0446109A1 Process for the preparation of dimethyldisulfide
09/11/1991CN1013861B Vinylcyclopropanecarboxylic acid esters
09/10/1991US5047570 Preparation of 2-cyano-3-aminoacrylonitrile derivatives
09/10/1991CA1288777C N-fluoropyridinium salt and process for preparing same
09/08/1991WO1991013867A1 N-acyl-aminoalkyl-2-hydroxyethylsulphides and a method for preparing them
09/08/1991CA2077674A1 N-acyl-aminoalkyl-2-hydroxyethylsulphides and a method for preparing them
09/03/1991US5045221 Polysulphurized olefin compositions, their preparation and their use as additives for lubricants
08/1991
08/21/1991EP0442585A1 Process for racemization of an optically active amino acid amide
08/21/1991EP0442584A1 Process for the preparation of an optically active amino acid amide
08/20/1991US5041681 Chemical process
08/20/1991US5041679 Reacting henylthiopropanal derivatives with acetoacetic acid salts
08/20/1991US5041663 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof
08/20/1991US5041660 Cimetidine intermediates
08/20/1991US5041639 Polysubstituted derivatives of naphtalene, their process of preparation and their application in the cosmetic and pharmaceutical fields
08/20/1991US5041638 Alkenoic acid derivatives
08/13/1991CA1287644C Benzoyl-ureas having insecticide activity
08/07/1991EP0440329A1 S-substituted carbonyl substituted betathioacrylamide biocides and fungicides
07/1991
07/31/1991EP0438908A1 Mixed S-alkylthiopropionic acid esters with pentaerythritol
07/30/1991CA1287047C Fungicides
07/24/1991CN1053235A Process for prepn. of beta-substituted sulphonic acids and/or sulphonates
07/23/1991US5034417 New alkanesulfonanilide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
07/23/1991US5034411 Cardiovascular disorders or antiarrhythmia agents
07/23/1991CA2033557A1 Mixed s-alkylthiopropionic acid esters with pentaerythritol and the like
07/17/1991EP0437187A2 Process for the preparation of esters of hydroxyphenylpropanoic acid
07/17/1991EP0437177A1 Process for the preparation of phenylsulfonamides
07/16/1991US5032169 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof
07/16/1991US5032137 Hair dye
07/16/1991CA1286319C Cyanoguanidine derivative and process for preparation thereof
07/16/1991CA1286318C Cyanoguanidine derivative and process for preparation thereof
07/13/1991CA2033956A1 Process for the preparation of beta-substituted sulphonic acids and/or sulphonates
07/12/1991CA2033846A1 Process for the preparation of hydroxyphenylpropionic acid esters
07/09/1991CA1285958C Method of separating monohydrate of l-cysteine hydrochloride
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