Patents
Patents for C07C 319 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides (8,304)
10/1998
10/27/1998US5827806 Preparation of sulfurized phenol additives intermediates and compositions
10/27/1998US5827538 Controlled release of the water-insoluble core after imbibement of water vapor and wetting of a porous wall of semipermeable hydrophobic membrane impervious to liquid water; drug delivery
10/20/1998US5824681 Immunomodulating effect
10/15/1998WO1998045271A1 Process for making a butylthio-isoquinoline and intermediates therefor
10/14/1998EP0870761A1 Thiocolchicine derivatives with antiinflammatory and muscle relaxant activities
10/14/1998EP0869940A1 Method for preparing organic disulphides and polysulphides in the presence of polystyrene-divinylbenzene (ps-dvb) resins having guanidine or amidine groups
10/14/1998EP0869939A1 Novel sulfonate ester
10/13/1998US5821388 Halogenation of methylthioacetophenone with chlorine or bromine in presence of methanol, oxidation with aqueous solution of hydrogen peroxide, sodium tungstate catalyst, and acid produces alpha-halo(methyl-sulfonyl)acetophenone
10/13/1998US5821382 Reacting unsaturated compound and hydrogen sulfide in presence of nitrogen-containing compound selected from substituted or unsubstituted amides or ureas and polysulfide compound or sulfur
10/13/1998US5821262 Hydroxamic acid derivatives as inhibitors of cytokine production
10/08/1998WO1998043967A1 PROCESS FOR PRODUCING 2-(BENZO[b]THIOPHEN-5-YL)-2-HYDROXYACETIC ACID DERIVATIVES, OPTICALLY ACTIVE COMPOUNDS THEREOF, OR SALTS OF BOTH
10/07/1998CN1195337A Synthesis of alpha-chloro or fluoro ketones
09/1998
09/23/1998EP0866112A1 Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same
09/23/1998CN1193622A Method for production of sulfide group-containing thiol compound
09/22/1998US5811571 Process for preparing aromatic or heteroaromatic sulfonyl halides
09/16/1998EP0863857A1 Perfluoroalkylation method and reagent therefor
09/15/1998US5808164 Process for producing aromatic sulfides
09/15/1998US5808140 Process for making mesna, dimesna and derivatives thereof
09/09/1998EP0863135A2 Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method
09/08/1998US5804582 Administering immunogenic organic amine salt of n,n'-diacetylcystine
09/02/1998EP0861834A1 Process for preparing optically active trans-3-substituted glycidic acid ester
09/02/1998EP0830362A4 Process for the synthesis of vinyl sulfenic acid derivatives
09/02/1998CN1192215A Process for the synthesis of vinyl sulfenic acid derivatives
09/01/1998US5801201 1-phenyl-2-dimenthylaminomethyl-cyclohexan-1-ol compounds as pharmaceutical active ingredients
08/1998
08/26/1998CN1039586C Method for preparing organic salts of N, N'-diacetyl cystine
08/20/1998WO1998035934A1 η-OXO-HOMOPHENYLALANINE DERIVATIVES AND PROCESS FOR PRODUCING HOMOPHENYLALANINE DERIVATIVES BY REDUCING THE SAME
08/19/1998CA2229721A1 Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same
08/11/1998US5792029 Foot skate climbing simulation exercise apparatus and method
08/05/1998CN1189819A Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanoic acid or salts thereof
08/05/1998CN1189818A Processes for the prepn. of 3-(methylthio) propanal and 2-hydroxy-4-(methylthio) butanenitrile
08/05/1998CN1189488A Method for preparing cystine coproduced non-salt compound amino-acid
08/05/1998CN1189487A Process for separating product gas mixture from catalytic synthesis of methyl mercaptan
08/04/1998US5789599 Biologically active compounds
07/1998
07/30/1998WO1998032735A1 Process for the preparation of 2-hydroxy-4-(methylthio)butanoic acid or methionine by mercaptan addition
07/29/1998CN1188759A Preparation method of methyl alkyl dithio ether
07/29/1998CN1039318C 3,3-dithiobis dipropyl acid and prepration method of esters thereof
07/28/1998US5786520 O-alkylation of phenolic compounds via rare earth orthophosphate catalysts
07/28/1998US5786515 Synthesis of α-chloro or fluoro ketones
07/28/1998US5786511 Catalytic reaction of mercaptan with sulfur
07/28/1998US5786494 Process for the synthesis of α-substituted acrylic acids and their application
07/22/1998EP0854137A1 Method for production of sulfide group-containing thiol compound
07/22/1998CN1188470A Process for preparation of 3-(methylthion) propanal
07/22/1998CN1188109A Process for production of sulfide group-containing mercaptocarboxylic acid and ester thereof
07/16/1998WO1998030538A1 Process for producing cysteine derivatives
07/16/1998WO1998030537A1 Nitric oxide synthase inhibitors
07/14/1998US5780402 Alkylated thiophenol lubricants
07/14/1998CA2127755C Method for crystallizing methionine
07/08/1998EP0851850A1 SYNTHESIS OF $g(a)-CHLORO OR FLUORO KETONES
07/07/1998US5777167 Neutralizing impurities with aqueous solution of an alkali metal hydroxide
07/07/1998US5777111 Derivatives of aryl substituted 1,3-oxazines
07/02/1998DE19654485A1 Preparation of stable monomeric 2-hydroxy-4-methylthio-butyric acid
07/01/1998EP0850923A1 Process for the separation of the gas mixture from the catalytic synthesis of methyl mercaptan
07/01/1998EP0850922A1 Process for the continuous preparation of methyl mercaptan
07/01/1998CN1186068A Preparation of 2-hydroxy-4-methylthiobulyric acid with stability for store
07/01/1998CN1186067A Process for continuous production of methyl mercaptan
06/1998
06/30/1998US5773641 Synthesis of esters of mercaptocarboxylic acids
06/30/1998US5773284 Reacting glycine amide with benzaldehyde
06/24/1998EP0848697A1 Process for the hydrogenation of imines
06/24/1998EP0705243B1 Beta-aminovinyl ketones, preparation method therefor and use thereof for preparing beta diketones
06/24/1998EP0700380B1 N-alkylthio polyamine derivatives as radioprotective agents
06/24/1998CN1185432A Process for synthesis of 3-mercaptopropionic acid
06/24/1998CN1185431A Process for synthesis of 3-mercaptoprapionic acid esters
06/23/1998US5770769 Process for the preparation of D,L-methionine or the salt thereof
06/23/1998US5770758 3-amino-2-mercaptobenzoic acid derivatives and processes for their preparation
06/23/1998CA2133808C Synthesis of methylmercaptan from dimethyldisulfide
06/16/1998US5767316 Process for producing 3-amino-2-oxo-1-halogenopropane derivatives
06/16/1998US5767229 Reacting sulfur with mercaptan or lower order polysulfide to form disulfide or higher order polysulfide
06/11/1998WO1998024748A1 Process for the racemization of substituted 4-ketocarboxylic acids
06/10/1998EP0729447A4 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane
06/10/1998CN1038675C Herbicide and its use
06/09/1998US5763618 Manufacturing method of sulfides
06/04/1998DE19649827A1 Verfahren zur Racemisierung von substituierten 4-Ketocarbonsäuren A process for the racemization of substituted 4-ketocarboxylic acids
06/02/1998US5760269 Reacting allyl methanesulfonate with chloroform; chemical intermediate for pesticides
06/02/1998US5760268 Production and use of salts of 6, 8-bis (amidiniumthio) -octanoic acid
05/1998
05/28/1998WO1998022435A1 Compounds useful for perhalogenoalkylation, reagent for implementing these compounds and synthesis method for obtaining these compounds
05/27/1998EP0844239A1 Method for producing homocystine
05/27/1998EP0844238A1 Process for production of sulfide group-containing mercaptocarboxylic acid and ester thereof
05/27/1998EP0844237A1 Process for the synthesis of esters of 3-mercaptopropionic acid
05/27/1998CN1182735A Diphenolic quaternary salt, its preparational process and usage
05/26/1998US5756849 Reducing concentration needed
05/26/1998US5756843 Quaternary bisphenolates, methods for their preparation, and uses thereof
05/26/1998US5756832 Process for preparing amino acid esters useful as intermediates for compounds containing a fused bicyclic ring
05/26/1998US5756809 Process for the preparation of (2RS,3RS)-3-(2'-aminophenylthio)-2-hydroxy-3-(4"-methoxyphenyl)-propionic acid methyl ester
05/26/1998US5756803 Process for the condensation of an aldehyde with hydrogen cyanide
05/22/1998CA2218927A1 Process for the synthesis of 3-mercaptopropionic acid esters
05/20/1998EP0842149A1 Process for the preparation of 3-(methylthio)propanal
05/19/1998CA2043455C Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts
05/13/1998EP0840717A1 Preparation of aldehydes or ketones from alcohols
05/13/1998CN1181378A Process for producing methionine
05/12/1998US5750763 Reacting the corresponding disulfide compound with alkali metal hydroxide in presence of a sulfur compound; then halogenated fatty acid ester
05/07/1998WO1998018757A1 Synthesis of benzo[f]quinolinones
05/07/1998CA2270433A1 Synthesis of benzo¬f|quinolinones
05/06/1998EP0839807A1 Synthesis of benzo(f)quinolinones
05/06/1998EP0839804A2 Process for producing methionine
05/05/1998US5747513 Hypotensive agents, heart failure and cerebrovascular insufficiency
04/1998
04/28/1998US5744647 A liquid reaction medium containing 3-(methylthio)propanal, methyl mercaptan and catalyst is contacted with acrolein gas flow to produce reaction prodct; separtion of non-condensable gases, recycling circulation fraction
04/28/1998US5744609 Method for producing alkylsulfinylbenzamides and 1-2 benzisothiazol-3-ones
04/28/1998US5744021 2-alkylmercapto-4-(trifluoromethyl)benzoic esters and a process for their preparation
04/22/1998EP0837046A1 Process for preparing o-alkyl-fluoro-benzenes
04/22/1998CN1038127C Process for preparation of amino-substituted thioethers
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