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Article
New fluorinated isoxazolidines
A simple procedure for the synthesis of fluorinated isoxazolidines from perfluoro-2-methylpent-2-ene and aliphatic aldoximes is described.
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Article
Reaction of hexafluoropropylene and its oligomers with acetone oxime
Reactions of perfluoropropylene and its oligomers with acetone oxime in the presence of a base afford perfluoroalkyl and/or perfluoroalkenyl ethers of acetone oxime. When heated to 100 °C, the 3-perfluoro-2-me...
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Article
Reaction of perfluoro-2-methyl-2-pentene with cycloalkanone oximes: new examples of the Beckmann—Chapman rearrangement
The base-catalyzed reaction of cycloalkanone oximes (la,b) with perfluoro-2-methyl-2-pentene (PFMP) initially affords the addition products,i.e., fluoroalkyl ethers (2a,b). In the presence of KOH, the latter unde...
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Article
Rearrangement ofO-perfluoroisobutenylacetone oxime. The structure of 2,2-bis(trifluoromethyl)-5-methyl-gD4-pyrrolin-3-one
Dehydrofluorination ofO-(β-hydroperfluoroisobutyl)acetone oxime affords 2,2-bis(tri-fluoromethyl)-5-methyl-†4-pyrrolin-3-one; the molecular structure of the latter was unambiguously established by X-ray diffracti...
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Article
An EPR and molecular mechanics study of radical adducts of phosphonyl radicals with 2-hydroperfluoro-4-methyl-and 4,4-dimethyl-2-pentene
EPR spectra of radical adducts of phosphonyl radicals with 2-hydroperfluoro-4-methyl- and 4,4-dimethyl-2-pentene have been studied. The molecular mechanics method has been used to determine the preferred confo...
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Article
Reaction of 2-trifluoromethylperfluoro-2-pentenyl fluorosulfate with nucleophilic reagents
2-Trifluoromethylperfluoro-2-pentenyl fluorosulfate undergoes SN2′ nucleophilic reactions. The reaction of this fluorosulfate with halide salts gives an equilibrium mixture of 1-halo-2-trifluoromethylperfluoro-2-...
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Article
Perfluorinated aliphatic enethiols and α, β-unsaturated sulfenyl chlorides
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2-Mercaptoperfluoro-3-isopropyl-4-methyl-2-pentene and perfluoro-3-isopropyl-4-methyl-2-pentenyl-2-sulfenyl c...
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Article
Molecular and crystal structures of 6-trifluoromethyl-5-perfluoroethyl-7,7-difluoro-2,3-dihydro-1,4-dioxepin-5,6-trifluoromethyl-5-perfluoroethyl-2,3-dihydro-1,4-dioxepin-5-one-7 and 2-methyl-6-trifluoromethyl-5-perfluoroethyl-2,3-dihydro-1,4-dioxepin-5-one-7
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Article
A new stable fluorine-containing thiete
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Article
Stable perfluorinated cyclic carbanions and their NMR spectra
Perfluoro-1-alkylcyclocarbanions were synthesized from perfluoro-1-ethylcyclobutene, perfluoro-1-methylcyclopentene, perfluoro-1-ethylcyclohexene and CsF in DMF and were identified by19F and13C NMR spectra. Perfl...
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Article
Polyfluorinated anions and cations — Intermediates in reactions of fluorine-containing vinyl ethers
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The existence of polyfluorinated cations as intermediates in reactions of polyfluorine-containing vinyl ether...
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Article
Reactions of perfluoro-1-alkylcycloalkenes with alcohols and properties of vinyl ethers formed
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Perfluoro-1-alkylcycloalkenes react with alcohols to form products of “vinyl” and “allyl” substitution.
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Article
Structure and13C AND19F NMR spectra of 1-substituted analogs of perfluoromethallyl cation
1-Substituted analogs of the perfluoromethallyl cation were prepared and characterized by13C and19F NMR spectroscopy. It was found that the cations studied exist in the form of Z, E isomers with respect to the ...
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Article
Reaction of perfluoro-2-methylpent-2-ene with oxygen nucleophiles
Perfluoro-2-methyl-2-pentene reacts with alcohols to give either fluorine substitution products or addition products, depending on the amount of basic catalyst which is used. Alcohols containing branched subst...
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Article
Stable polyfluorinated cycloalkenyl cations and their NMR spectra
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New stable 1-methoxyperfluoro-2-ethylcyclobutenyl, 1-methoxyperfluoro-2-methylcyclo-pentenyl, and 1-methoxype...
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Article
Reaction of perfluoro-2-methyl-2-pentene with bifunctional mucleophiles
Bifunctional O- and S-nucleophiles react with perfluoro-2-methyl-2-pentene to form five- and seven-membered heterocycles in a ratio which is determined by the type of nucleophile.
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Article
Reactions of internal fluoroolefins with ethylenimine and properties of N-polyfluoroalkyl(alkenyl)-substituted aziridines
Internal fluoroolefins readily react with ethylenimine, forming, depending on structure, addition products of “vinyl” substitution products. Action of mineral acids (HBr, HCl) on N-polyfluoroalkenylaziridines ...
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Article
Catalytic and hydride reduction of hexafluoropropylene dimers
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Higher internal perfluoroolefins are readily reduced by catalytic hydrogenation and treatment with complex me...
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Article
Synthesis, properties mid stereochemistry of higherα,β-unsaturated perfluoroketones
Fluoroolefins containing both a fluorine atom and methoxy group in the allylic position are readily converted by the action of SbF5 to α,β-unsaturated fluoroketones which are cyclized by the action of fluoride io...
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Article
Reaction of secondary amines with hexafluoropropylene dimers
By the action of secondary amines, and depending on their nature, perfluoro-4-methyl-2-pentene either forms substitution products of the “ally” fluorine atom, or isomerizes into perfluoro-2-methyl-2-pentene an...
