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WO/2004/014820A2 |
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WO/2004/013094A2 |
One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond b...
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WO/2004/009520A1 |
A method for producing a chlorinated hydrocarbon substituted with an aromatic group which comprises agitating a mixture of a corresponding tertiary alcohol such as 1,4-bis(2-hydroxy-2-propyl)benzene and hydrochloric acid, and then contac...
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WO/2003/106379A1 |
The invention relates to a method for exchanging substituents in organic compounds, for example, chlorine for fluorine. The method involves the use of a catalyst of formulas (IVa), (IVb) or (IVc), wherein: radicals R2 to R17, independent...
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WO/2003/101926A1 |
The invention relates to a method for producing compounds containing fluorine by reacting a compound, which contains hydrogen that can be exchanged for fluorine, with a fluoride or with a mixture of fluorides of general formula (I): MeF,...
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WO/2003/093212A1 |
A process for producing a (fluoroalkyl)benzene derivative which comprises: a step in which the total content of transition metals in Groups 3 to 12 in an alkylbenzene derivative is regulated to 500 ppm or lower in terms of the amount of ...
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WO/2003/091199A1 |
The invention relates to a method for converting a tertiary OH group of an organic compound into a tertiary CI group of said organic compound using a solvent selected from the group containing toluene, o-xylene, m-xylene, p-xylene and mi...
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WO/2003/076366A2 |
The present invention relates to a method for preparing organic fluorocompounds, more particluraly to a method for preparing organic fluorocompounds by means of reaction of alkyl halide or alkyl sulfonate with fluoro salt in the presence...
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WO/2003/062143A1 |
The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35 % bromine dissolved in aqueous lime or sodium hydroxide...
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WO/2003/045899A1 |
A process for producing 4-bromo-2-oxyimino butyric acid, predominantly as the (Z)-isomer of formula (I), wherein R is hydrogen; a linear or branched C¿1-4? alkyl group; a linear or branched C¿1-4? alkyl group substituted by a carboxyli...
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WO/2003/040088A1 |
A process for preparation of fluorinated sulfides, characterized by reacting a sulfide of the general formula (1) having at least one hydrogen atom with IF5 to thereby replace at least one hydrogen atom of the sulfide by a fluorine atom:...
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WO/2003/020685A1 |
A fluorine compound represented by the general formula (1). It is effective in incorporating fluorine atoms into a compound having an active group such as an oxygenic functional group and is usable in applications such as surface treatme...
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WO/2003/008364A1 |
A fluorination process which comprises fluorinating an organic compound with an electrophilic fluorinating agent bearing an N−F bond in liquid carbon dioxide, supercritical carbon dioxide, liquid fluoroalkane, or supercritical fluoroal...
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WO/2003/002526A1 |
A method of oxidizing primary and secondary alcohols to an aldehyde or ketone using a fluorous sulfoxide or a fluorous sulfide is disclosed. The method includes regenerating and recycling the fluorous sulfoxide which has the structure, w...
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WO/2003/002251A2 |
A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.
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WO/2002/102810A2 |
A method for the synthesis of cyclobuta aromatic compounds by cyclizing two ortho dibromoalkyl substituents is described. Using a mediator, such as nickel metal, and continuous removal of product from contact with the mediator, high prod...
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WO/2002/100802A2 |
A method of reacting a first compound to produce a second compound includes the step of contacting a first non-fluorous phase including the first compound with a first fluorous phase at a first phase interface. The first compound distrib...
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WO/2002/098924A2 |
Methods of making compositions including fluorinated peroxides are disclosed. The compositions are useful, for example, for reacting with organic compounds. In one embodiment, novel peroxides are provided.
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WO/2002/092608A2 |
The invention relates to a novel method for producing nucleophilic substitutions, particularly of type SNAr and SN2. More specifically, the invention relates to the use as a fluorinating reaction medium of ionic liquid or fused salt comp...
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WO/2002/092226A1 |
The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R¿1?, R¿2?, R¿3?, R¿4?, R¿5?, and R¿6?, identical or different, are selected among hyd...
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WO/2002/081081A1 |
The invention relates to a composition comprising at least one amine-containing compound and ammonium bifluoride, the use thereof as a fluorinating agent and a method for preparing perfluoroalkanesulphonyl fluoride using said fluorinatin...
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WO/2002/068374A1 |
Methanol and carbon monoxide are fed to a liquid reaction system (3) containing a carbonylation catalyst system through feeding lines (17) and (19), respectively, a part of the reaction mixture containing the resulting acetic acid is wit...
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WO/2002/060838A1 |
Inorganic and organic compounds containing fluorine can, for example, be produced from corresponding compounds containing chlorine by exchanging chlorine and fluorine using fluorinating agents. It was found that monocylic or bicyclic com...
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WO/2002/060853A1 |
A method of synthesizing in a high yield the target fluorine compound having a geminal-difluoro structure by subjecting an easily available carbonyl compound to a two-stage reaction. A compound (1) such as ethyl 4-oxocyclohexanecarboxyla...
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WO/2002/055487A2 |
The invention concerns a method for using a carbamoyl fluoride as fluorinating agent. Said method consists in treating a derivative bearing a halogen-containing carbon, with a carbamoyl fluoride at a temperature not less than 70 °C and ...
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WO/2002/053545A1 |
The present invention provides a process for producing aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite ion and holodimethylsulfonium halide generated $i(in situ) from hydrobromic acid/DMSO or hydriodic...
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WO/2002/051774A1 |
The invention relates to a method for producing disubstituted tetrafluoroethylene derivatives of general formula (I), wherein R?1¿ is a linear or branched, cyclic or acyclic, saturated or unsaturated, aromatic or aliphatic hydrocarbon w...
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WO/2002/049992A2 |
Disclosed is a process for exchanging substituents, for example chlorine by fluorine, in organic compounds. The process encompasses the application of a compound of Formula (IV) as a catalyst, wherein the R's independently of one another...
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WO/2002/046137A1 |
A process for rationally producing a substituted halogenobenzene compound, especially a 2,6-dialkyl (or aryl)-4-substituted halogenobenzene compound, which comprises reacting a substituted (thio)phenol or (thio)phenolate represented by t...
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WO/2002/030852A1 |
A process for the halogenation of an aromatic compound wherein the aromatic compound is admixed with a halogenating agent in the presence of an ionic liquid is described. The method for the halogenation of aromatic compounds is preferabl...
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WO/2002/022525A1 |
A process is provided for the fluorination of an aromatic fused ring compound which comprises treating the compound with fluorine. A preferred process involves treating a solution of a naphthalene compound in an inert solvent with elemen...
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WO/2002/010094A1 |
The invention relates to a method for the selective production of chlorination products of formula (I), wherein R¿1? and R¿2?, independently of each other, represent H, Cl or R¿1? or R¿2? represents COOH or R¿1? and R¿2? together f...
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WO/2001/096263A1 |
A process for the production of fluorinated organic compounds, characterized by fluorinating an organic compound bearing a hydrogen atom with IF¿5?; and a novel fluorination process of fluorinating an organic compound bearing a hydrogen...
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WO/2001/096266A1 |
A process is provided for increasing the fluorine content of benzene or pyridine rings which are optionally substituted with from 1 to 3 inert substituents. The process involves (a) contacting the ring with a metal fluoride composition c...
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WO/2001/090107A1 |
The invention concerns quaternary ammonium compounds whereof the nitrogen bears a fluorine atom. Said ammonium compounds have an asymmetric carbon atom which is spaced from the ammonium function by not more than five members. The inventi...
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WO/2001/083421A1 |
A process for the preparation of 2-halobenzoic acids of the general formula (I), characterized by reacting a benzoic acid of the general formula (II) with a halogenating agent in the presence of a Pd catalyst. [In the formulae, A is -OH,...
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WO/2001/081274A1 |
A phosphazenium compound represented by the formula (1) (1) (wherein Q?-¿ is an anion formed by removing a proton from an inorganic acid or from an active-hydrogen compound having an active hydrogen atom on an oxygen, nitrogen, or sulfu...
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WO/2001/081353A1 |
The invention concerns ion liquids derived from the reaction of at least a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of formula X?+¿A?-¿ wherein A?-¿ is a halid...
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WO/2001/079143A1 |
Novel techniques are disclosed for the direct fluorination of organic compounds by treatment with fluorine gas in a reaction mixture comprising hydrofluoric acid and at least one of water and formic acid. The techniques are particularly ...
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WO/2001/068743A2 |
Disclosed are porous polymer/carrier solid phase reactants which consist of a polymer that consists of fine particles and is situated in the pore space of porous carrier materials. Reactive groups are bound to the polymer. Said groups ac...
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WO/2001/058833A1 |
The invention concerns a method for functionalising a double bond and, more particularly, a double bond bearing a metalloid atom. Said functionalisation is produced by the action of perhalogenated sulphonyl chloride on the carbon bearing...
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WO/2001/032308A1 |
Ionic liquids are immobilised on a functionalised support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilised via the anion by treating a support with an an...
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WO/2001/028959A1 |
The present invention provides a method of selectively fluorinating a carbon-hydrogen bond at an unactivated saturated sp?3¿ hybridised carbon atom of an organic compound, the method including reacting the organic compound with elementa...
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WO/2001/023329A1 |
The invention relates to a method for brominating organic compounds and to bromination microreactors for carrying out said method.
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WO/2001/021573A1 |
A process for terminal chlorination of fluorinated compounds which enables easy and relatively inexpensive preparation of fluorinated monomers having cyano or other functional groups. This process is characterized by reacting a fluorinat...
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WO/2001/017931A2 |
The invention relates to the use of hydrogen fluoride adducts and ammonium fluorides for fluorinating acid chlorides and halogen carbon compounds, such as chlorine alkanes or chlorethers. The used adducts can be regenerated and then re-u...
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WO/2001/016188A1 |
The fluorinating reagent is preferably a gas mixture containing fluorine and carbon dioxide and preferably an inert gas. The fluorinating regent is especially suited for fluorinating plastic add-on pieces having portions that are made of...
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WO/2001/014253A1 |
A mixture, comprising an alkaline fluoride or an alkaline earths fluoride or a mixture from two or more thereof and 2 % by weight or less of silicic acid, preferably pyrogenic silicic acid. Also disclosed are the production method and th...
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WO/2001/012577A1 |
Disclosed is a method of fluorinating a substrate having general formulae (I) or (II) where each R is independently selected from halogen, alkyl from C¿1? to C¿12?, aryl from C¿6? to C¿12?, alkoxide from C¿1? to C¿12?, aryloxide fr...
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WO/2001/012575A1 |
The present invention relates to chemical synthesis of radiolabelled perfluorinated bioactive compounds. More particularly, the present invention relates to radiolabelled compounds to be used as indicators for tissue hypoxia. More partic...
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