Patents
Patents for C07B 45 - Formation or introduction of functional groups containing sulfur (608)
08/2000
08/16/2000EP1028107A1 Photoinitiation of the sulfochlorination or sulfoxidation of alkanes through UV-excimer-ray for the preparation of alkylsulphonic chlorides and alkylsulfonates
08/02/2000CN1261552A Catalyst for preparing thio-alcohol using zircomiumoxide as base
07/2000
07/19/2000EP1019351A1 Method for acylation or sulphonation of an aromatic compound
06/2000
06/07/2000EP1005906A1 Catalysts based on zirconia for preparation of thiols
06/07/2000CN1053174C Method for sulfonating liquid state organics by gas phase sulfur trioxide and its equipment
05/2000
05/11/2000WO2000026161A1 Sulphonylation method and reagent useful for perhalogenated sulphanilide synthesis
04/2000
04/25/2000CA2004776C Process for the preparation of perfluoroalkylthioethers
04/05/2000CN1249737A Method for acylation or sulphonation of aromatic compound
03/2000
03/23/2000WO2000015585A1 Method for condensation of aromatic derivative(s) and a sulphinic derivative
03/15/2000EP0984935A1 Method for producing substituted thiopyridines
03/09/2000DE19840319A1 Verfahren zur Herstellung von aromatischen oder heteroaromatischen Sulfonsäurechloriden A process for the preparation of aromatic or heteroaromatic sulphonyl chlorides
03/08/2000EP0983982A1 Process for the preparation of aromatic or heteroaromatic sulfonyl chlorides
03/08/2000EP0983979A1 Dielectric material
03/08/2000EP0983216A1 Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent
01/2000
01/26/2000EP0973704A1 Process for the manufacture of arylsulfonyl chloride
10/1999
10/06/1999CN1230940A Method for grafting substituted difluoromethyle group
08/1999
08/19/1999WO1999041236A1 Synthesis of 1-(2-sulphoethyl)-pyridinium betaine
08/19/1999CA2320173A1 Synthesis of 1-(2-sulphoethyl)-pyridinium betaine
08/12/1999DE19805487A1 Synthese von 1-(2-Sulfoethyl)-pyridiniumbetain Synthesis of 1- (2-sulfoethyl) pyridinium betaine
08/10/1999US5936106 Process with porous means to control reaction rate and heat
07/1999
07/01/1999WO1999032440A1 Method for preparing aromatic thiols and derivatives, reagents, intermediate products and method for obtaining them
06/1999
06/15/1999US5911958 Reaction of sulfur trioxide to produce surfactants for cosmetics or detergents
06/01/1999US5908943 Prepared by (i) reacting an allyl derivative of an active hydrogen-containing compound with (ii) a peroxygen-containing compound.
05/1999
05/26/1999EP0817674B1 Multitube falling film reactor for the continuous manufacturing of sulfonated and/or sulfated compounds
05/26/1999EP0799261B1 Process for preparation of allyl ether, thioether and amine compounds
05/19/1999EP0915814A1 Method for grafting a substituted difluoromethyle group
04/1999
04/28/1999EP0587774B1 Sulfonation process for viscous sulfonic acid
03/1999
03/24/1999EP0903174A1 Method and device for the liquid phase oxidation of organic compounds using peroxidic oxidants
03/22/1999CA2247662A1 Process and apparatus for the oxidation of organic compounds in liquid phase using peroxide oxidizing agents
02/1999
02/10/1999EP0677045B1 Catalytic oxidation process of thiols
02/03/1999CN1041924C Sulfuric acid, sulfate, dithio-amino formic acid and its salt oxidation process
01/1999
01/27/1999EP0893183A2 Exothermic process with porous means to control reacton rate and exothermic heat
01/12/1999US5859288 Reagent and process for the synthesis of oxysulphide-containing fluorine-containing organic derivatives
01/06/1999CN1204312A Method for preparing organic disulphides and polysulphides in presense of polystyrene-divinylbenzene (PS-DVB) resins having primary amine groups
12/1998
12/03/1998WO1998054139A1 Method for producing substituted thiopyridines
11/1998
11/26/1998WO1998052886A1 Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent
11/11/1998EP0876312A1 Method for preparing organic disulphides and polysulphides
09/1998
09/17/1998WO1998040339A1 Method for acylation or sulphonation of an aromatic compound
09/17/1998WO1998040332A1 Process for the manufacture of arylsulfonyl chloride
09/17/1998CA2282680A1 Method for acylation or sulphonation of an aromatic compound
09/15/1998CA2102176C Sulfonation process for viscous sulfonic acid
08/1998
08/04/1998US5789615 Oil additive
07/1998
07/28/1998US5786511 Catalytic reaction of mercaptan with sulfur
05/1998
05/27/1998CN1183059A Multitube falling film reactor for the continuous mfg. of sulfonated and/or sulfated compounds
05/19/1998CA2043455C Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts
04/1998
04/21/1998US5741934 Preparation of primary mercaptans
02/1998
02/12/1998WO1998005609A1 Method for grafting a substituted difluoromethyle group
02/12/1998CA2262499A1 Method for grafting a substituted difluoromethyle group
01/1998
01/21/1998CN1171125A Process for preparing allyl ether, thioether and amine compounds
01/21/1998CN1171124A Process for preparing epoxy compounds
01/14/1998EP0817674A1 Multitube falling film reactor for the continuous manufacturing of sulfonated and/or sulfated compounds
11/1997
11/04/1997US5684184 Process for preparation of sulphonates
10/1997
10/15/1997EP0801056A2 Preparation of primary mercaptans
10/08/1997EP0799262A1 Process for preparation of epoxy compounds
10/08/1997EP0799261A1 Process for preparation of allyl ether, thioether and amine compounds
09/1997
09/10/1997EP0794186A1 The preparation of sulfur-containing organosilicon compounds
09/10/1997EP0655054B1 Process for preparation of sulphonates
09/07/1997CA2176680A1 Preparation of sulfur-containing organosilicon compounds
09/02/1997US5663128 Liquid antioxidants as stabilizers
06/1997
06/19/1997WO1997021649A1 Method for preparing organic disulphides and polysulphides
06/19/1997CA2235714A1 Method for preparing organic disulphides and polysulphides
04/1997
04/08/1997US5618945 Process for the sulfinylation of heterocyclic compounds
04/02/1997EP0765930A2 Process for preparation of sulphonates
02/1997
02/19/1997CN1143064A Method for sulfonating liquid state organics by gas phase sulfur trioxide and its equipment
02/12/1997CN1142491A Reagent and process for synthesis of oxysulphide containing fluorine-containing organic derivatives
01/1997
01/21/1997US5596128 Sulfonating agent and sulfonation process
12/1996
12/10/1996US5583245 Reacting haloalkylsilane compound with ammonium or alkali metal hydrosulfide and sulfur in presence of phase transfer catalyst and aqueous phase
12/10/1996US5583240 Exothermic process with porous means to control reaction rate and exothermic heat
11/1996
11/26/1996US5578740 Process for preparation of epoxy compounds essentially free of organic halides
10/1996
10/16/1996EP0737674A2 Process for the preparation of sulfurized olefins
10/15/1996US5565689 Reactant for perfluoroalkylation of nucleophilic substrates with sodium perfluoroalkanesulphinates in an oxidizing medium
10/03/1996WO1996030117A1 Multitube falling film reactor for the continuous manufacturing of sulfonated and/or sulfated compounds
10/02/1996EP0735023A1 Reagent and process for the synthesis of organic sulphoxylated and fluorinated derivatives
07/1996
07/31/1996EP0505582B1 Sulfonating agent and process
07/09/1996US5534634 Process for preparing trifluoroethyl sulfur compounds from thiolates and 1-chloro-2,2,2-trifluoroethane
07/04/1996WO1996020233A1 Process for preparation of epoxy compounds
07/04/1996WO1996020232A1 Process for preparation of allyl ether, thioether and amine compounds
07/03/1996CN1032201C Process for preparing perhaloalkylthioethers
04/1996
04/24/1996EP0629188B1 Regioselective sulphonylation of substituted aromatic compounds
04/23/1996US5510518 Process for the hydrosulfination of olefins
04/16/1996US5507973 Highly reactive zerovalent metals from metal cyanides
02/1996
02/13/1996US5490952 Highly reactive form of copper and reagents thereof
02/13/1996US5490951 Zerovalent copper species capable of reacting with allylic halide or acetate to form allylic organocuprate; for synthesis of highly functional compounds
12/1995
12/20/1995EP0687200A1 Exothermic process with porous means to control reaction rate and exothermic heat
11/1995
11/21/1995US5468903 Regioselective sulfonylation reaction of substituted aromatic compounds
10/1995
10/31/1995US5463075 Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound
10/25/1995CN1110682A Process for the sulphinylation of heterocyclic compounds
10/18/1995EP0677045A1 Catalytic oxidation process
08/1995
08/29/1995US5445801 Multitube falling-film reactor
08/23/1995EP0668269A1 Process for the sulfinylation of heterocyclic compounds
05/1995
05/31/1995EP0655054A1 Process for preparation of sulphonates.
03/1995
03/30/1995CA2133153A1 Process for preparing trifluoroethyl sulfur compounds from thiolates and 1-chloro-2,2,2-trifluoroethane
03/29/1995EP0645355A1 Method for the preparation of trifluoroethyl sulphur compounds from thiolates and 1-chloro-2,2,2-trifluoroethane
03/22/1995EP0644195A1 Liquid antioxidants as stabilisers
03/08/1995EP0641783A1 Process for preparing 1,2-pyrazolidine-4-yl-disulfide compound
03/08/1995EP0641755A1 Process for the hydrosulphination of olefins
02/1995
02/08/1995EP0587774A4 Sulfonation process for viscous sulfonic acid.
02/07/1995US5387718 Method of manufacturing alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers
01/1995
01/11/1995CN1027371C Synthetizing method for inner ester diterpenoid
01/10/1995CA1333907C Alkyl aryl sulfones and method of preparing the same
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