Patents for C07B 39 - Halogenation (1,839)
04/2003
04/23/2003EP1304316A1 Processes for the production of fluorinated organic compounds and fluorinating agents
04/23/2003CN1413177A Process for preparing fluorine-containing compounds
04/16/2003CN1105701C Method for preparing substituted benzyl bromides
03/2003
03/26/2003EP1294662A1 Processes for fluorinating aromatic ring compounds
03/19/2003EP1054853B1 Catalyst recovery for halogen exchange reactions
03/13/2003WO2003020685A1 Fluorine compound and fluorinating agent comprising the compound
03/13/2003US20030050518 Fluorination of aromatic fused ring compound by treating the compound with fluorine in an inert solvent with elemental fluorine, preferably in a gas stream and diluted with an inert gas; efficiency
02/2003
02/27/2003WO2003002251A3 Process for preparing fluorination catalyst
02/26/2003EP1284975A1 Ammonium compounds bearing an electrophilic fluorine, reagent containing same, method using same and synthesis method for obtaining them
02/20/2003US20030036668 Treating a reaction mixture comprising the organic compound and hydrofluoric acid, containing at least one of water and formic acid, with fluorine gas for direct fluorination
02/20/2003US20030036667 Heating aromatic compound substituted with halogen that is exchangeable for fluorine with fluoride and compound such as Diethylaminobis(tetramethylguanidino)sulfonium bromide to produce fluorinated aromatics
02/18/2003US6521199 Hydrogen fluoride(HF); ammonium fluorides used for fluorinating acid chlorides and halocarbon compounds such as chloroalkanes are regenerated and reused by reacting with HF in the presence of a liquid carboxylic acid
02/04/2003US6515191 Synthesis of vicinal difluoro aromatics and intermediates thereof
01/2003
01/30/2003WO2003008364A1 Fluorination process
01/30/2003US20030022785 Exposing catalytically active compound to first activating agent at operating temperature and pressure of the catalyst under conditions effective to achieve substantially steady state conditions at said operating temperature and pressure
01/22/2003EP1277726A1 Process for the preparation of 2-halobenzoic acids
01/22/2003EP1276743A1 Ion liquids derived from lewis acid based on titanium, niobium, tantalum, tin or antimony, and uses thereof
01/15/2003EP1275631A2 Fluorination with aminosulfur trifluorides
01/15/2003EP1275630A1 Process for producing substituted aromatic compound
01/09/2003WO2003002526A1 Method of oxidizing an alcohol using a recyclable fluorous sulfoxide
01/09/2003WO2003002251A2 Process for preparing fluorination catalyst
01/08/2003EP1272445A1 Fluorination method
01/02/2003US20030004369 Comprises combining perfluorinated anhydride with hydrogen peroxide and a catalytic amount of a salt, a metal oxide, a metal hydroxide, and/or a metal alcoholate
01/02/2003US20030004348 Difluoro-diamine methylene derivatives
01/02/2003EP1268566A2 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
12/2002
12/27/2002WO2002102810A2 Synthesis of (dibromocyclobuta) aromatic compounds
12/26/2002US20020198417 Synthesis of vicinal difluoro aromatics and intermediates thereof
12/25/2002CN1387461A Immobilised ionic liquid
12/19/2002WO2002100802A2 Fluorous triphase and other multiphase systems
12/19/2002US20020193592 Use as phase transfer catalysts, in halogen-fluorine exchange reactions and nucleophilic substitutions; bis(2-methoxyethyl)amino-tris(pyrrolidino)phosphonium chloride for example; lower dermal toxicity
12/19/2002DE10129057A1 Verbessertes Verfahren zur Herstellung kernfluorierter Aromaten Improved process for preparing aromatic kernfluorierter
12/18/2002EP1266904A1 Improved process for preparing fluorinated aromatic compounds
12/12/2002WO2002098924A2 Compositions including fluorinated peroxides, methods of making, and the use thereof
12/11/2002CN1384811A Fluorination in liquid or supercritical carbon dioxide
12/11/2002CN1095692C Halogenation catalyst
12/04/2002EP1015402B1 Method for producing compounds containing fluorine, in particular fluorobenzaldehydes and fluorobenzonitriles
12/04/2002EP0958052B1 Amidophosphonium-salt-containing catalyst for halogen-fluorine exchange reactions
11/2002
11/28/2002WO2002055487A3 Method for using a carbamoyl fluoride as fluorinating agent
11/21/2002WO2002092608A2 Use of a composition of an ionic nature as a substrate reagent, a composition constituting a fluorination reagent and a method using same
11/21/2002WO2002092226A1 Catalysts for nucleophilic substitution, synthesis thereof, composition containing same and use thereof
11/21/2002US20020173681 Regeneration of onium fluoride-HF adducts
11/21/2002CA2445459A1 Use of a composition of an ionic nature as a substrate reagent, a composition constituting a fluorination reagent and a method using same
11/21/2002CA2442782A1 Catalysts for nucleophilic substitution, synthesis thereof, composition containing same and use thereof
11/20/2002CN1380880A Process for producing substituted aromatic compound
11/14/2002US20020169071 Forming, in the absence of the ionic liquid, a functionalised support material containing, a first compound bonded to the support and having a free anion or cation group which is reacted with ionic liquid containing other anion or cation
11/06/2002EP1254091A1 Method for functionalising a double bond
10/2002
10/31/2002US20020161227 By reacting a phosphazenium compound with Q as counteranion with a halogenated aromatic compound to substitute at least one halogen atom with Q
10/29/2002US6472345 Titanium halides, sulfonates or diolates
10/22/2002US6469224 Reacting a phosphazenium compound with a halogenated aromatic compounds, especially chlorinated aromatic compounds
10/21/2002WO2001068743A2 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
10/21/2002CA2406787A1 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
10/17/2002WO2002081081A1 Composition based on an amine compound and ammonium bifluoride and use thereof
10/15/2002US6465643 Aminophosphonium compounds
10/01/2002US6458990 Nitrogen-based halogenating agents and process for preparing halogen-containing compounds
09/2002
09/24/2002US6455744 Synthesis of vicinal difluoro aromatics and intermediates thereof
09/24/2002US6455718 For continuously recovering chloropentafluorobenzene or bromopentafluorobenzene from vapor phase
09/18/2002EP0891962B1 Process for the preparation of fluorinated dicarbonyl compounds
09/12/2002WO2002049992A3 Process for preparing fluorinated organic compounds
09/06/2002WO2002068374A1 Method for controlling reaction and controlling apparatus
09/05/2002US20020123657 Electrophilic fluorination
09/05/2002US20020123627 N-fluorotriazinium fluorinating agents
09/04/2002EP0912466B1 Method for synthesis of hydrocarbon compounds containing fluorine on at least one alkyl chain carbon
08/2002
08/29/2002US20020119096 Fluorination of proteins and peptides for F-18 positron emission tomography
08/21/2002EP1233010A1 Method for production of organic fluorine compound
08/20/2002US6437203 Iodination in the presence of chlorate oxidizing agent; high purity and low cost
08/20/2002US6437168 Fluorination; efficient extraction
08/14/2002EP1230277A1 Reagent for fluorinating plastics
08/14/2002EP0993428B1 Method for chlorinating halogenated phenols
08/13/2002US6433231 Method for production of halogen-containing aromatic compound
08/08/2002WO2002060853A1 Process for producing fluorine compound
08/08/2002WO2002060838A1 Production of fluorine compounds
08/08/2002DE10104663A1 Herstellung von Fluorverbindungen Preparation of fluorine compounds
08/07/2002CN1088699C Preparation method for chlormethyl pyridine compound
07/2002
07/31/2002CN1361716A Preparation and use of ionic liquids in microwave-assisted chemical transformation
07/30/2002US6426391 Fluorination in liquid or supercritical carbon dioxide
07/25/2002US20020099247 Synthesis of vicinal difluoro aromatics and intermediates thereof
07/24/2002EP1225162A1 Synthesis of vicinal difluoro aromatics and intermediates thereof
07/18/2002WO2002055487A2 Method for using a carbamoyl fluoride as fluorinating agent
07/18/2002US20020095042 Process for brominating the side chain of 4-methylbiphenyl derivatives substituted in the 2' position
07/11/2002WO2002053545A1 Process for preparation of aromatic halides from aromatic amines
07/09/2002US6417361 Fluorination agent and preparation and use of same
07/04/2002WO2002051774A1 Production of disubstituted tetrafluoroethylene derivatives
07/04/2002DE10065218A1 Herstellung von disubstituierten Tetrafluorethylen-Derivaten Preparation of disubstituted tetrafluoroethylene derivatives
07/04/2002DE10064423A1 Verfahren zur Herstellung substituierter organischer Verbindungen und Verwendung von Katalysatoren für Substitutionsreaktionen Process for preparing substituted organic compounds, and use of catalysts for substitution reactions
06/2002
06/27/2002WO2002049992A2 Process for preparing fluorinated organic compounds
06/26/2002EP1216217A1 Method for brominating organic compounds
06/25/2002CA2248446C Fluorination with aminosulfur trifluorides
06/19/2002EP1214278A2 Regeneration of onium fluoride-hf adducts
06/18/2002US6407029 Catalyst, phase transfer agent
06/13/2002WO2002046137A1 Process for producing substituted halogenobenzene compound
06/12/2002EP1212259A1 Flowable alkaline fluorides and alkaline earths fluorides
06/11/2002US6403789 Reacting in organic solvent dialkylhaloiminium compound as halogenating agent and lower alkyl sulfone, lower alkenyl sulfone, aryl sulfone or heterocyclic sulfone with hydroxyl group containing compound to obtain halogenide
06/05/2002EP1210322A1 Method for carrying out the side chain bromination of 4-methyl biphenyl derivatives substituted at the 2'-position
06/04/2002US6399835 Process for electrophilic aromatic substitution
05/2002
05/29/2002CN1351580A Fluorination
05/29/2002CN1085662C Process for preparing chloromethylpyridines
05/28/2002US6395165 Process for preparing perfluorinated organic compounds by electrochemical fluorination
05/21/2002US6392084 Method for production of organic fluorine compound
05/16/2002WO2001068743A3 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
05/16/2002US20020056633 Preparation and use of ionic liquids in microwave-assisted chemical transformations
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