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JP4782290B2 |
A process for fluorinating a hydrocarbon substrate by mixing it with an inert diluent and mixing the diluted substrate with a gaseous fluorinating reagent to form a foam reaction mixture. The fluorinating reagent reacts with the substrat...
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JP4773602B2 |
A supported Lewis acid catalyst such as antimony V on a fluorine-treated moisture-free activated carbon support is provided, as are fluorination processes using such a catalyst.
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JP4759388B2 |
A process for producing a compound of formula (5) or a salt thereof: [F10] wherein the process is characterized by comprising reacting a compound of formula (2) or a salt thereof: [F8] with an alkali metal nitrite in the presence of a re...
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JP4752759B2 |
The present invention provides a process for producing an optically active fluoro compound represented by formula (3) through reaction between a specific fluoroamine and an optically active diol; and a process for producing an optically ...
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JP4695742B2 |
A process is disclosed for preparing chlorinated pyridinesulphonic acid chlorides of the general formula Ifrom hydroxypyridine-sulphonic acids of the general formula IIThe process generally entails a) passing chlorine gas into a mixture ...
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JP4659948B2 |
Mixtures containing 70-99.5 wt.% tetrakis(pyrrolidino)- or tetrakis(piperidino)-phosphonium salt (I), with an (in)organic anion, and 30-0.5 wt.% tris(pyrrolidino)- or tris(piperidino)-phosphine oxide (II) are claimed. The mixtures contai...
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JP2011001377A |
To provide a new compound useful as a precursor of a raw material for a fluorocarbon resin.There are provided the compounds III such as RACH2OCORB, the compounds IV such as RAFCF2OCORBF, and the compounds V such as RAFCOF (wherein RA is ...
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JP4563647B2 |
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. an...
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JP4551533B2 |
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JP4518247B2 |
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JP4498744B2 |
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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JP4480115B2 |
A system and process for producing a fluorinated organic compound, said process comprising (a) reacting an organic compound with a fluorinations agent in the presence of a liquid-phase fluorinations catalyst to produce a product stream; ...
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JP4480802B2 |
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JP4474700B2 |
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JP2010106027A |
To provide an industrially applicable method for synthesizing a 2-(3-pyrazolyloxymethylene)nitrobenzene derivative.The 2-(3-pyrazolyloxymethylene)nitrobenzene derivative is represented by formula I [wherein, R1 is a halogen atom, or a (s...
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JP4450875B2 |
Nucleophilic reactant used for grafting a substd. difluoromethyl gp. onto an electrophilic cpd., comprises: (a) a fluorocarboxylic acid of formula Ea-CF2-COOH where Ea is electron-attracting atom or gp. at least partially salted by organ...
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JP2010077165A |
To provide a method for synthesizing a fluorinated compound using a carbamoyl fluoride as a fluorinating source.The method for using a carbamoyl fluoride as fluorinating agent is disclosed. The method comprises treating a derivative bear...
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JP4419385B2 |
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JP4400238B2 |
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JP4397687B2 |
A process for preparing a fluorination catalyst using a low pressure activating step followed by a high pressure activating step.
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JP4390964B2 |
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JP4367996B2 |
Disclosed is a process for producing an iodinated aromatic compound, which comprises reacting an aromatic compound with an iodine compound in the presence of a chlorate as an oxidizing agent.
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JP4348077B2 |
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 in preferably halide, sulfur or nitrate ionic liquids h...
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JP4332702B2 |
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JP4313217B2 |
A method of preparing vicinal difluoro aromatic compounds in high yield from hydroxy aromatic compounds using various bases and a method of preparing intermediates thereof. A method for making a vicinal difluoro halogenated aromatic comp...
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JP4280030B2 |
Preparation of nuclear fluorinated aromatic compounds (I), involving reacting fluoride with an aromatic compound substituted in the nucleus by halogen exchangeable with fluorine, at 40-260 degrees C in presence of substituted guanidino o...
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JP4274488B2 |
To provide the production method of an iodinating agent, by which iodine cation suitably used as the iodinating agent not necessitating skilled separation operation after completion of iodination reaction can be produced, and to provide ...
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JP4271278B2 |
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JP2009102433A |
To provide a method for producing a vicinal difluoro aromatic compound in a high yield.The invention provides a method of preparing vicinal difluoro aromatic compounds in a high yield from hydroxy aromatic compounds using various bases, ...
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JP4243741B2 |
Aliphatic and cycloaliphatic hydrocarbon chlorides are prepared by the reaction of the corresponding mono- or poly-alcohol, especially those of formula R<1>R<2>CH-OH (I), with phosgene or thionyl chloride, in the presence of a hexa-subst...
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JP2009507806A |
A process for preparing organic chlorides in which the chlorine atom is bonded to a CH2 group by reacting the corresponding alcohols with thionyl chloride in the presence of a triaylphosphine oxide at a temperature of from 20 to 200° C....
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JP4222029B2 |
It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction. A compo...
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JP2009023969A |
To provide a method for commercially advantageously producing a fluorine-containing alkyl halide by subjecting a sulfonic acid ester derived from a fluorine-containing alcohol to a halogenation reaction, in particular, a method for produ...
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JP2009501770A |
Mono- or difluorinated hydrocarbon compounds are prepared from an alcohol or a carbonylated compound by reacting one of these with a fluorinating reagent, optionally in the presence of a base, the fluorinating agent comprising a pyridini...
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JP2008542199A |
A process is described wherein after formation of first crop of Vilsmeier-Haack reagent by reacting Phosphorus Pentachloride with N,N-dimethylformamide to form a first crop of Vilsmeier reagent as insoluble crystals, a by-product of this...
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JP4173569B2 |
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JP4129307B2 |
Production of o-alkylfluorobenzenes of formula (I) comprises heating chloroformate esters of formula (II) in the liquid phase at 70-200 degrees C in the presence of hydrogen fluoride and an inert diluent (III) other than halogenated alka...
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JP4120715B2 |
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JP4097292B2 |
The present invention relates to a process for preparing fluorine-containing compounds by reacting a compound which contains fluorine-exchangeable halogen with a fluoride or a mixture of fluorides with the formula Iin which Me is an alka...
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JP4078416B2 |
A porous aluminum fluoride on which SbClxF5-x (wherein x represents a numeral of 0 to 5) is supported, SbClxF5-x being obtainable by supporting SbCl5, or the like on a porous aluminum fluoride and treating it with hydrogen fluoride. The ...
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JP4076618B2 |
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JP2008509995A |
A process is disclosed for the manufacture of CHClF2 which involves contacting CHCl3, HF and pentavalent antimony catalyst in the liquid phase; passing reactor vapor effluent to a reflux column to produce a reflux column vapor effluent o...
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JP4067847B2 |
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JP2008044944A |
To provide a novel method for bring about nucleophilic substitutions of an aromatic nucleophilic substitution (SNAr) type and of a nucleophilic secondary substitution (SN2) type.For example, a chlorinated derivative, such as of an aromat...
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JP4050321B2 |
The present invention provides several methods of synthesis and separation in which organic/fluorous phase separation techniques are used to effect separations. The present invention also provides novel compositions of matter comprising ...
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JP2008503483A |
A method of separating at least a first non-fluorous compound from a mixture of compounds including at least the first non-fluorous compound and a second fluorous compound includes: charging the of compounds to a non-fluorous solid (stat...
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JP2007314576A |
To provide a method for synthesizing an objective organic molecule by using an organic/fluorous phase separation technique. The synthesizing method comprises the steps of: (a) reacting a first organic compound with a first fluorination-r...
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JP3996264B2 |
A process for the synthesis of fluorinated derivs. comprises a step in which a substrate is reacted with a cpd. comprising the association of a Bronsted base with a defined number (n) of HF species (n=3-20, pref. 15, and esp. 10). The su...
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JP3992923B2 |
Thiol-containing peptides can be radiolabeled with fluorine-18 (F-18) by reacting a peptide comprising a free thiol group with an F-18-bound labelling reagent which also has a group that is reactive with thiols. The resulting F-18-labele...
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JP2007231022A |
To provide a new halogenation catalyst giving N,N-dialkylcarbamoyl halides which all have only very small volatility and are little dangerous for workers and environments. A compound represented by the structural formula of Figure and th...
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