- Reaction of N,N′-Methylenebis(trifluoromethanesulfonamide) with Styrene under Oxidative Conditions
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The reaction of N,N′-methylenebis(trifluoromethanesulfonamide) with styrene in the oxidative system t-BuOCl/NaI affords triflamide, 2-iodo-1-phenylethanol, N,N′-bis(trifluoromethanesulfonyl)urea, and the product of styrene bistriflamidation. The mechanism
- Moskalik, M. Yu.,Astakhova,Ganin,Shainyan
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p. 734 - 736
(2019/07/17)
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- A fluoroalkyl (S - alkyl sulfonyl phenylimino) preparation of sulfonamides method (by machine translation)
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The invention belongs to the field of preparation of fluorinated compounds, more specifically, relates to a fluoroalkyl (S - alkyl sulfonyl phenylimino) sulfonamide preparation method. The invention provides a method for synthesizing alkyl (S - alkyl sulfonyl phenylimino) of sulfonamides, sulfur valence state is + 4 (fluoroalkyl sulfonyl) of ([...] sulfonyl) imide ionic liquid or an alkali metal salt in a suitable organic solvent directly with the amine reagent in the reaction to synthesize sulfonyl imide salt of super delocalization important intermediate alkyl (S - alkyl sulfonyl phenylimino) sulfonamide. The method not only greatly shortening the preparation fluoroalkyl (S - alkyl sulfonyl phenylimino) sulfonamide route, and compared with before takes water as a solvent, the yield of the reaction and high purity, the operation step is short, the purification process is simple, the ionic liquid can be circulated and reused, environmental protection, water pollution-free. (by machine translation)
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Paragraph 0083-0088
(2019/04/10)
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- PERFLUOROALKYL SULFONAMIDE AND METHOD FOR PRODUCING THE SAME
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PROBLEM TO BE SOLVED: To simply provide high-purity perfluoroalkyl sulfonamide by efficiently reducing bis(perfluoroalkyl sulfone)imide, an impurity to be generated in a production process. SOLUTION: High-purity perfluoroalkyl sulfonamide is obtained by reducing bis(perfluoroalkyl sulfone)imide by washing perfluoroalkyl sulfonamide expressed by the following formula (1), which contains the bis(perfluoroalkyl sulfone)imide, with a chlorinated solvent: RfSO2 NH2, provided that, in the formula (1), Rf is a straight or branched 1-4C perfluoroalkyl group. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT
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Paragraph 0070-0074
(2018/06/05)
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- Highly regioselective amination of unactivated alkanes by hypervalent sulfonylimino-δ3-bromane
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Amination of alkanes has generally required metal catalysts and/or high temperatures. Here we report that simple exposure of a broad range of alkanes to N-triflylimino-δ3-bromane 1 at ambient temperature results in C-H insertion of the nitrogen functionality to afford triflyl-substituted amines in moderate to high yields. Marked selectivity for tertiary over secondary C-H bonds was observed; primary (methyl) C-H bonds were inert. Addition of hexafluoroisopropanol to inhibit decomposition of 1 dramatically improved the C-H amination efficiencies. Second-order kinetics, activation parameters (negative activation entropy), deuterium isotope effects, and theoretical calculations suggest a concerted asynchronous bimolecular transition state for the metal-free C-H amination event.
- Ochiai, Masahito,Miyamoto, Kazunori,Kaneaki, Takao,Hayashi, Satoko,Nakanishi, Waro
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scheme or table
p. 448 - 451
(2011/10/31)
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- Reaction of N-sulfinyltrifluoromethanesulfonamide with triphenylphosphine and triphenylphosphine oxide
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The reaction of N-sulfinyltrifluoromethanesulfonamide with triphenylphosphine and triphenylphosphine oxide or of trifluoromethanesulfonamide with dichloro(triphenyl)phosphorane leads to trifluoro-N-(triphenyl-λ5-phosphanylidene)methanesulfonamide, which is hydrolyzed to trifluoromethanesulfonamide and triphenylphosphine oxide via the intermediate trifluoro-N-[hydroxy(triphenyl)phosphoranyl] methanesulfonamide.
- Tolstikova,Bel'Skikh,Shainyan
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scheme or table
p. 1189 - 1192
(2011/01/10)
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- The aza Arndt-Eistert reaction based on N-trifluoromethylsulfonylarenecarboximidoyl chlorides
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The aza analogues of carboxylic acids chlorides containing the {double bond, long}NSO2CF3 and {double bond, long}NSO2CH3 groups instead of oxygen atom were used in the Arndt-Eistert reaction. It was found that N
- Yagupolskii, Lev M.,Maletina, Irina I.,Sokolenko, Liubov V.,Vlasenko, Yurii G.,Drozdova, Maria V.,Polovinko, Vitaliy V.
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body text
p. 238 - 247
(2010/04/30)
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- N-TRIFLUOROMETHYLSULFONYL-S-TRIFLUOROMETHYL-S-ARYLSULFOXIMIDES
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N-Trifluoromethylsulfonyl-S-trifluoromethyl-S-arylsulfoximides were obtained by the reaction of the sodium salts of S-trifluoromethyl-S-arylsulfoximides with the anhydride or chloride of trifluoromethanesulfonic acid.In electronic nature the CF3S(O)=NSO2CF3 group is a "superstrong" electron-withdrawing substituent, which corresponds to the effect of the two nitro groups at the ortho and para positions to the reaction center.The dimethylaminoazo dye with the CF3S(O)=NSO2CF3 substituent at position 4 exhibits negative halochromism.
- Kondratenko, N. V.,Popov, V. I.,Radchenko, O. A.,Ignat'ev, N. V.,Yagupol'skii, L. M.
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p. 1542 - 1547
(2007/10/02)
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- Trifluormethansulfinsaeure-Azid und Trifluormethan-Schwefeloxidnitrid - Synthese und chemische Eigenschaften
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The synthesis of a perfluoroalkyl derivative of sulfanuric acid was attempted via the thermal decomposition of a) F3CSO2NPCl3 to yield OPCl3 as a byproduct, b) F3CSON3 to give the desired product by splitting off elemental nitrogen.However F3CSO2NPCl3 unexpectedly is stable up to 500 deg, when it looses mainly the F3C-group.Trifluoromethane sulfinic acidazide, F3CSON3, which we synthesised from the acid chloride and NaN3 at -40 deg starts to decompose as expected around -10 deg forming as the primary intermediate F3CSON, which can be formulated containing a S-N triple bond, and which proved to be extremely reactive.This trifluoromethan-sulfur oxide nitride oligomerizes spontaneously, or in presence of suitable compounds can be captured to yield various new compounds.With acetonitril a dithiatriazin is formed, with F3CSON3 an explosive sulfonimidoyl-azide, with trimethylsilyl azide, N-trimethylsilyl-trifluoromethan-sulfonimidoyl chloride.F3CSOCl yields an N-substituted sulfonimidoyl chloride in two diastereomeric forms.
- Bechtold, Thomas,Eingelbrecht, Alfred
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p. 379 - 402
(2007/10/02)
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