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Fluorocyclopropane
Fluorocyclopropane is an organofluorine compound with the chemical formula . The compound is a member of haloalkane family. Synthesis The compound can be produced by reacting imidazolylidene cyclopropyl group with xenon difluoride. Also, a reaction of enantioselective cyclopropanation of fluoro-substituted allylic alcohols using zinc carbenoids. See also * Fluoroalkane Organofluorine chemistry describes the chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond. Organofluorine compounds find diverse applications ranging from oil and water repellents to pharmaceuticals, ...s * Fluorocyclohexane References Extra reading * * {{Fluorine compounds Cyclopropyl compounds Fluorine compounds Organofluorides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorocyclopropane
Chlorocyclopropane is a organochlorine compound with the chemical formula . The compound is a member of haloalkane family. Synthesis The compound can be obtained by photoreaction of cyclopropane and chlorine gas; the reaction will generate polychlorinated compounds, which can be separated by physical means. Chemical properties The compound isomerizes on heating to 3-Chloropropene. Chlorocyclopropane reacts with lithium Lithium (from , , ) is a chemical element; it has chemical symbol, symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard temperature and pressure, standard conditions, it is the least dense metal and the ... metal in ether to produce bicyclopropane. Also, it reacts with magnesium to obtain cyclopropylmagnesium chloride. See also * Chloroalkanes References {{Chlorine compounds Cyclopropyl compounds Organochlorides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromocyclopropane
Bromocyclopropane is a organobromine compound with the chemical formula . It is a member of haloalkane family. Synthesis The compound can be obtained by treating silver cyclopropanecarboxylate with bromine: : Chemical properties Reaction with magnesium, using diethyl ether as solvent, only gives about 25–30% of the cyclopropylmagnesium bromide Grignard reagent, with nearly as much cyclopropane formed by alternate reactions on the metal surface. The compound isomerizes on heating to produce 1-bromopropene and 3-bromopropene. Physical properties The compound is a flammable liquid that causes skin irritation and serious eye irritation. It is soluble in chloroform and methanol. Insoluble in water. See also * Bromoalkanes * Bromocyclohexane References {{Bromine compounds Cyclopropyl compounds Organobromides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iodocyclopropane
Iodocyclopropane is a organoiodine compound with the chemical formula . The compound is a member of haloalkane family. Chemical properties The compound reacts with benzoxazole to produce 2-cyclopropylbenzoxazole in presence of palladium catalyst. Uses Iodocyclopropanes are used as synthetic intermediates to synthesize many alkyl, aryl, and acyl substituted cyclopropanes via organometallic Organometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkali, alkaline earth, and transition metals, and so ... reactions. See also * Iodoalkanes References {{Iodine compounds Cyclopropyl compounds Iodine compounds Organoiodides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorocyclohexane
Fluorocyclohexane is an organofluorine compound with the chemical formula . Synthesis Fluorocyclohexane is prepared by reaction of cyclohexanol with hydrogen fluoride. Safety The compound causes serious skin and eye irritation, and may also cause respiratory irritation. See also * Fluoroalkanes * Fluorocyclopropane * Fluorobenzene Fluorobenzene is an aryl fluoride and the simplest of the fluorobenzenes, with the formula C6H5F, often abbreviated Phenyl group, PhF. A colorless liquid, it is a precursor to many fluorophenyl compounds. Preparation PhF was first reported in 18 ... References {{Fluorine compounds Cyclohexanes Fluorine compounds Organofluorides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organofluorine Compound
Organofluorine chemistry describes the chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond. Organofluorine compounds find diverse applications ranging from oil and water repellents to pharmaceuticals, refrigerants, and reagents in catalysis. In addition to these applications, some organofluorine compounds are pollutants because of their contributions to ozone depletion, global warming, bioaccumulation, and toxicity. The area of organofluorine chemistry often requires special techniques associated with the handling of fluorinating agents. The carbon–fluorine bond Fluorine has several distinctive differences from all other substituents encountered in organic molecules. As a result, the physical and chemical properties of organofluorines can be distinctive in comparison to other organohalogens. # The carbon–fluorine bond is one of the strongest in organic chemistry (an average bond energy around 480 kJ/mol). This is significantly st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloalkane
The haloalkanes (also known as halogenoalkanes or alkyl halides) are alkanes containing one or more halogen substituents of hydrogen atom. They are a subset of the general class of halocarbons, although the distinction is not often made. Haloalkanes are widely used commercially. They are used as flame retardants, fire extinguisher, fire extinguishants, refrigerants, propellants, solvents, and pharmaceuticals. Subsequent to the widespread use in commerce, many halocarbons have also been shown to be serious pollutants and toxins. For example, the chlorofluorocarbons have been shown to lead to ozone depletion. Methyl bromide is a controversial fumigant. Only haloalkanes that contain chlorine, bromine, and iodine are a threat to the ozone layer, but fluorinated volatile haloalkanes in theory may have activity as greenhouse gases. Methyl iodide, a naturally occurring substance, however, does not have ozone-depleting properties and the United States Environmental Protection Agency has de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discussions Of The Faraday Society
''Faraday Discussions'' is a scientific journal publishing original research papers presented at a long-running series of conferences on physical chemistry, chemical physics and biophysical chemistry which are also called Faraday Discussions, together with a record of the comments made at the meeting. The journal was originally published by the Faraday Society. The journal has been published by the Royal Society of Chemistry (RSC) since that society merged into the RSC. From 1972 to 1991, it was known as the ''Faraday Discussions of the Chemical Society''. Traditionally there have been three ''Faraday Discussions'' a year, however, from 2014 around eight conferences (and therefore eight volumes of the journal) are organised annually. Philippa Ross is the editor of ''Faraday Discussions'' and the present chairman of the Standing Committee on Faraday Conferences is John Seddon (Imperial College London). The journal has a 2021 impact factor of 4.394. History The majority of ''Farad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenon Difluoride
Xenon is a chemical element; it has symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere in trace amounts. Although generally unreactive, it can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized. Xenon is used in flash lamps and arc lamps, and as a general anesthetic. The first excimer laser design used a xenon dimer molecule (Xe2) as the lasing medium, and the earliest laser designs used xenon flash lamps as pumps. Xenon is also used to search for hypothetical weakly interacting massive particles and as a propellant for ion thrusters in spacecraft. Naturally occurring xenon consists of seven stable isotopes and two long-lived radioactive isotopes. More than 40 unstable xenon isotopes undergo radioactive decay, and the isotope ratios of xenon are an important tool for studying the early history of the Solar System. Radioactive x ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chem , a place in Finland
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Chem may refer to: *Chemistry *Chemical * ''Chem'' (journal), a scientific journal published by Cell Press *Post apocalyptic slang for "drugs", medicinal or otherwise in the Fallout video game series. In Ancient Egyptian usage: * ''Khem'' (also spelt ''Chem''), the Egyptian word for "black" *Min (god), in the past erroneously named ''Khem'' CHEM may refer to : *A metabolic panel: for instance, CHEM-7, which is the basic metabolic panel * CHEM-DT, a Canadian television channel See also * Chemo (other) * Kem (other) *Kemi Kemi (; ; ; ) is a cities of Finland, town and municipalities of Finland, municipality of Finland. It is located approximately from the city of Tornio and the Finland–Sweden border, Swedish border. The distance to Oulu is to the south and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbenoid
In chemistry a carbenoid is a reactive intermediate that shares reaction characteristics with a carbene. In the Simmons–Smith reaction the carbenoid intermediate is a zinc / iodine complex that takes the form of :I-CH2-Zn-I This complex reacts with an alkene to form a cyclopropane just as a carbene would do. Carbenoids appear as intermediates in many other reactions. In one system a carbenoid chloroalkyllithium reagent is prepared in situ from a sulfoxide and t-BuLi which reacts the boronic ester to give an ate complex. The ate complex undergoes a 1,2-metallate rearrangement to give the homologated product, which is then further oxidised to a secondary alcohol.Iterative Stereospecific Reagent-Controlled Homologation of Pinacol Boronates by Enantioenriched -Chloroalkyllithium Reagents Paul R. Blakemore and Matthew S. Burge J. Am. Chem. Soc.; 2007; 129(11) pp 3068 - 3069; (Communication) : The enantiopurity of the chiral sulfoxide is preserved in the ultimate product after ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Journal Of Chemistry
The ''Canadian Journal of Chemistry'' (fr. ''Revue canadienne de chimie'') is a peer-reviewed scientific journal published by NRC Research Press. It was established in 1951 as the continuation of '' Canadian Journal of Research, Section B: Chemical Sciences''. Papers are loaded to the web in advance of the printed issue and are available in both pdf and HTML formats. Abstracting and indexing The journal is abstracted and indexed by the following services: Chemical Abstracts, ChemInform, Chemistry Citation Index, Compendex, Current Contents, Derwent Biotechnology Abstracts, GeoRef, INIS Atomindex, Methods in Organic Synthesis, Referativny Zhurnal, and the Science Citation Index. According to the ''Journal Citation Reports'', its 2022 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Fact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluoroalkane
Organofluorine chemistry describes the chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond. Organofluorine compounds find diverse applications ranging from oil and water repellents to pharmaceuticals, refrigerants, and reagents in catalysis. In addition to these applications, some organofluorine compounds are pollutants because of their contributions to ozone depletion, global warming, bioaccumulation, and toxicity. The area of organofluorine chemistry often requires special techniques associated with the handling of fluorinating agents. The carbon–fluorine bond Fluorine has several distinctive differences from all other substituents encountered in organic molecules. As a result, the physical and chemical properties of organofluorines can be distinctive in comparison to other organohalogens. # The carbon–fluorine bond is one of the strongest in organic chemistry (an average bond energy around 480 kJ/mol). This is significantly st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
