Patents
Patents for C07C 319 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides (8,304)
07/1991
07/06/1991CA2033452A1 S-substituted carbonyl substituted beta-thioacrylamide biocides and fungicides
07/03/1991EP0435659A2 Preparation process of bis(3-nitrophenoxy) compound
07/03/1991EP0435151A2 Process for the preparation of 1,1-disubstituted cyclopropane derivatives
07/03/1991EP0434896A1 Process for preparation of alpha-alkoxy acetic acids and their salts
07/02/1991US5028728 Process for the preparation of reaction products of 2,2-bis-(4-hydroxphenyl)-hexafluoropropane and new derivatives of this type
07/02/1991CA1285575C Naphthalene anti-psoriatic agents
06/1991
06/25/1991US5026916 Process for the preparation of 1-alkylthio-and 1-benzylthio-1-formylcyclopropanes
06/25/1991US5026915 Catalytially reacting alkyl alcohol with hydrogen sulfide to produce alkyl mercaptan, reacting intermediate with molten sulfur to produce alkyl disulfide
06/25/1991US5026846 Treating diphenylamine or diphenyl phosphine with sulfur or selenium or their oxides
06/25/1991CA1285290C Methods for preparing group ii metal overbased sulfurized alkylphenols
06/12/1991EP0431121A1 Process for the resolution of threo-3-[(2-aminophenyl)-thio]-2-hydroxy-3-(4-methoxy-phenyl)propionic acid.
06/12/1991CN1052113A Process and apparatus for producing mercaptoacetic acid
06/11/1991US5023371 Synthesis of thioglycolic acid
06/08/1991CA2019230A1 Process for preparation of .alpha.-alkoxy acetic acids and their salts
06/05/1991EP0430544A1 Process for resolving chiral intermediates used in making calcium channel blockers
06/05/1991EP0429619A1 New process for the preparation of phenyl-guanidine derivatives.
06/04/1991US5021441 Organic compounds and their pharmaceutical use
06/04/1991US5021414 Phenol derivatives
06/04/1991CA1284661C Reduction of organic sulfur compounds
05/1991
05/30/1991WO1991007454A1 Fluorinated poly(ether sulfones)
05/30/1991WO1991007385A1 Preparation of propenoic acid derivatives
05/28/1991US5019596 Pharmaceutical compositions having therapeutical activity based on mercaptoethansulphonic acid
05/24/1991CA2030375A1 Process for the optical resolution of threo-2-hydroxy-3-(2'-aminophenylthio)-3-(4"methoxy-phenyl) -propionic acid
05/22/1991WO1991007386A1 Carboxyalkylcarbonyl aminoacid endopeptidase inhibitors
05/22/1991CA2069112A1 Carboxyalkylcarbonyl aminoacid endopeptidase inhibitors
05/21/1991US5017725 Preparation of addition salts of cysteamine with acids
05/21/1991CA2028376A1 Process for resolving chiral intermediates used in making calcium channel blockers
05/18/1991WO1991007370A1 A METHOD FOR THE SYNTHESIS OF α, β-UNSATURATED KETONES
05/18/1991WO1991007369A1 METHOD FOR THE PREPARATION OF β-HYDROXYKETONES
05/18/1991WO1991007368A1 PREPARATION METHOD FOR α,β-UNSATURATED KETONES
05/18/1991CA2044618A1 Method for the synthesis of .alpha.,.beta.-unsaturated ketones
05/18/1991CA2044580A1 Method for the preparation of .beta.-hydroxyketones
05/14/1991US5015776 Sulfiding crotonaldehyde with alkyl mercaptan in polyamine containing ion exchange resin presence
05/14/1991US5015775 Reaction of an alkylsulfonic acid with an aromatic compound and a phosphorous reagent
05/14/1991US5015770 Sulfiding an aromatic amine with a hydrocarbyl disulfide in the presence of iodine
05/14/1991US5015758 Reaction of acyloxyadamantane with a receptor compound in a solvent and in the presence of sulfuric acid
05/08/1991EP0425687A1 Clathrate compound of ring-substituted salicylic acid salt
05/07/1991US5013864 From alcohol and haloacetic acid salt
05/07/1991US5013834 Process for the preparation of an optically active benzothiazepinone
04/1991
04/30/1991US5012007 Reacting A Phenyl Alcohol With Carbon Monoxide In The Presence Of A Lewis Acid Catalyst
04/30/1991US5012003 Process for preparing dithiobisphenols
04/30/1991US5011995 Hydrogenation of N-Aliphatic Keimines Using A Complex Iridium Catalyst
04/30/1991US5011957 Produced in a single reactor with troublesome byproducts
04/24/1991EP0423705A2 Process for the stereochemical inversion of (2S,3S)-2-amino-3-phenyl-1,3-propanediols into their (2R,3R) enantiomers
04/23/1991US5010189 Processes for the preparation of 5-amino-4-hydroxy-valeric acid derivatives
04/23/1991US5010097 Collagenase inhibitors, antiarthritic agents
04/17/1991CN1050713A Continuous synthesis of mercaptocarboxylic acid esters
04/16/1991US5008465 Preparing ether by heating alcohol with olefin
04/16/1991US5008434 Process for the preparation of methyl (+)-(2S,3S)-3-[(2-aminophenyl)thio]-2-hydroxy-3-(4-methoxyphenyl)-propionates
04/16/1991US5008433 2-hydroxy-3-(4-methoxyphenyl)-3-(2-aminophenylthio)propionic acid, 8'-phenylmenthyl ester, especially for diltiazem
04/16/1991US5008432 Production of mercapto compounds
04/16/1991US5008411 Glycidic acid ester and process of preparation
04/10/1991EP0421831A1 Continuous synthesis of esters of mercaptocarboxylic acids
04/10/1991EP0421759A2 Method for producing 1-indanone derivatives
04/10/1991EP0421364A2 Pleuromutilins
04/10/1991EP0420991A1 Method of producing bis(1,2-diaryl-1,2-ethylenedithiolato) nickel complex
04/09/1991CA1282796C Decontamination of (hydrocarbylthio) aromatic amines
04/09/1991CA1282792C Herbicidal 5-(alkylthiophenyl) cyclohexan -1,3-dione derivatives
04/09/1991CA1282791C Method for preparation of mercaptobenzoates
04/03/1991EP0420815A1 Process for the preparation of 2-(2-haloethylthio)-phenylsulfonamides
03/1991
03/30/1991CA2026355A1 Process for the preparation of 2-(2-halogenoethylthio)-phenylsulfonamides
03/27/1991EP0419074A1 Compound, preparation and use
03/26/1991CA1282074C Process for the preparation of mercaptomethylphenols
03/20/1991EP0417386A1 Photochemical preparation of 3-(organothio) aldehydes
03/19/1991US5001271 Synthesis of benzyl mercaptan
03/19/1991US5001269 Process for the production of lower dialkyl disulphides
03/12/1991US4999381 Fungicides
03/12/1991US4999042 Phenyl oximino-acetate fungicides
03/12/1991CA2024214A1 Dry mix for microwave muffins with psyllium and method of preparation
03/11/1991CA2015355A1 Photochemical preparation of 3-(organothio) aldehydes
03/07/1991WO1991002718A1 Novel amino acid derivatives, method for preparing them, and their therapeutical applications
03/07/1991CA2064592A1 Amino acid derivatives, their preparation process and their therapeutic applications
03/06/1991EP0415212A1 Aryloxynaphthalene derivatives
03/06/1991EP0276329B1 2,3-diaminoacrylonitrile derivatives
02/1991
02/28/1991DE3927992A1 Mercapto-acetaldehyde acetal(s) prepn. - by using chloro-acetaldehyde acetal(s) and synthetic intermediates from opt. continuous process
02/27/1991EP0414396A1 N-Hydroxyalkyl-mercaptoalkanamides
02/27/1991EP0414062A2 Process for preparing aromatic dicarboxylic acids and novel aromatic dicarboxylic acids
02/27/1991CN1049496A Thiol-terminated hydroxyamides
02/27/1991CN1011783B Process for preparation of cyclopentyl ethers
02/26/1991US4996352 Enantiomers of β-[(2-amino-1-naphthalenyl) thiol]-α-hydroxy-4-methoxybenzene propanoic acid
02/26/1991US4996320 Thyroid inhibitors
02/26/1991CA1280762C Vinylcyclopropanecarboxylic acid esters
02/20/1991EP0413563A1 Solvent refining alkylthiopropionic pentaerythritol esters
02/20/1991EP0413562A1 S-alkylthiopropionic acids and derivatives
02/20/1991EP0413068A1 Process for making an optically active mixture of an n-acyl-amino acid or ester containing at least two chiral centers
02/20/1991CN1049336A Granular cysteamine hydrochloride and method for production thereof
02/19/1991US4994624 Process for preparing organothioalkanols
02/19/1991US4994623 Process for producing thioalkyl or thioarylphenones
02/19/1991US4994615 Process for the preparation of optically active secondary arylamines
02/19/1991US4994570 Indicators for the detection of thiol groups
02/19/1991US4994150 Process for the purification of esters of mercapto acids
02/19/1991CA1280443C Polyfluoroalkylthiomethyl compounds, process for their preparation and their application as surfactants or precursors thereof
02/19/1991CA1280441C Meta-substituted dioxa-alkane carboxylic acids, esters, amides and salts of diphenyl ethers
02/16/1991CA2019771A1 Sulphuric acid esters of amino-sugars
02/13/1991EP0412387A2 Diarylacetylenes, their process and use
02/12/1991CA1280116C Amino-acids separation process
02/09/1991CA2022570A1 Diarylacetylenes, the preparation and use thereof
02/07/1991WO1991001300A1 5-substituted aminophenols
02/05/1991US4990679 Poly(tetrahydrofuran)
02/05/1991US4990675 Oxidizing mercaptans with halogenated hydrocarbons in presence of hydroxides and phase transfer catalyst
1 ... 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 ... 84