- Dilithium bis[(perfluoroalkyl)sulfonyl]diimide salts as electrolytes for rechargeable lithium batteries
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A series of four different dilithium salts of structure F3 CSO2N(Li)SO2-(CF2)x -SO2N(Li)SO2CF3, with x = 2, 4, 6, 8 were synthesized and characterized in polyethylene-oxide-based solid polymer electrolytes. Each salt may be thought of as two bis[(perfluoroalkyl)sulfonyl]imide anions linked together by a perfluoroalkyl chain of a particular length. Taken together, this homologous series provides an opportunity to study the effects of linker chain length and degree of fluorination in dianionic (and ultimately polyanionic) salts on the properties, particularly the conductivity, of the salts in various solvating media. SPEs in polyethylene oxide were characterized using scanning calorimetry, X-ray diffraction, 1H and 19F NMR, and electrochemical impedance spectroscopy for SPEs prepared using ethylene-oxide-oxygen-to-lithium (EO:Li) ratios of 10:1 and 30:1. Trends in SPE ionic conductivity with anion structure revealed an unexpected trend whereby ionic conductivity is generally rising with increased length of the perfluoroalkylene linking group in the dianions. This trend could be the result of a decrease in dianion basicity that results in diminished ion pairing and an enhancement in the number of charge carriers with increasing anion fluorine content, thereby increasing ionic conductivity.
- Geiculescu,Xie, Yuan,Rajagopal,Creager,DesMarteau
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Read Online
- Intermolecular 2 + 2 Carbonyl-Olefin Photocycloadditions Enabled by Cu(I)-Norbornene MLCT
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Photocycloadditions are often typified by the oxetane-forming Paternò-Büchi reaction. However, the mechanistic constraints of carbonyl excitation and olefin interception have limited this attractive oxetane-forming pathway. Here we describe the use of a Cu(I) precatalyst that achieves selective olefin activation via coordination to the metal center. Significantly, this intermolecular 2 + 2 carbonyl-olefin photocycloaddition engages alkyl ketones, which are more challenging to accommodate via direct irradiation pathways. Mechanistic investigations support the in situ formation of a Cu-norbornene resting state that undergoes a MLCT leading to oxetane formation.
- Flores, Daniel M.,Schmidt, Valerie A.
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Read Online
- Synthesis of 1,3-dialkyl imidazolium ionic liquids containing difunctional and tetrafunctional perfluoroalkylsulfonyl imide anions
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Direct methylation of imidazole using methylated difunctional or tetrafunctional perfluorosulfonyl imides renders excellent yields of the corresponding room temperature ionic liquids (RTILs). This methodology provides a simple, halide-free route to several novel RTILs containing multifunctional perfluorosulfonyl imide anions.
- Hickman, Tom,Desmarteau, Darryl D.
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Read Online
- Silicon Tetrakis(trifluoromethanesulfonate): A Simple Neutral Silane Acting as a Soft and Hard Lewis Superacid
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A facile synthesis and isolation of pristine silicon tetrakis(trifluoromethanesulfonate), Si(OTf)4, is reported, acting as the first neutral silicon-based Lewis superacid suitable towards soft and hard Lewis bases. Its OTf groups have a dual function: they are excellent leaving groups and modulate the degree of reactivity towards soft and hard Lewis bases. Exposed to soft Lewis donors, Si(OTf)4 leads to [L2Si(OTf)4] complexes (L=isocyanide, thioether and carbonyl compounds) with retention of all Si?OTf bonds. In contrast, it can cleave C?X bonds (X=F, Cl) of hard organic Lewis bases with a high tendency to form SiX4 (X=F, Cl) after halide/triflate exchange. Most notable, Si(OTf)4 allows a gentle oxydefluorination of mono- and bis(trifluoromethyl)benzenes, resulting in the formation of the corresponding benzoylium species, which are stabilized by the weakly coordinating [Si(OTf)6] dianion.
- Driess, Matthias,Hermannsdorfer, André
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supporting information
p. 13656 - 13660
(2021/05/03)
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- A method of manufacturing a sulfonic acid anhydride Fluoroalkanoic (by machine translation)
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PROBLEM TO BE SOLVED: purpose of the present invention, and fluoroalkylsulfonic and by the reaction of phosphorus pentoxide, when manufacturing a fluoroalkylsulfonic anhydride, to provide a method for manufacturing a high yield. SOLUTION: the actual capacity 100L 1.0kW per power is less than the maximum, at least two or more axial blade kneader type reactor is used, and a sulfonic acid Fluoroalkanoic dephosphorizing pentoxide and kneaded by more than 40 °C 100 °C while , reaction, and, generating a fluoroalkylsulfonic anhydride is discharged, after the discharge of the residue in the reactor at a temperature of more than 100 °C 140 °C while kneading, unreacted fluoroalkylsulfonic recovered is discharged, and is characterized as a method of manufacturing a sulfonic acid anhydride Fluoroalkanoic. Selected drawing: no (by machine translation)
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Paragraph 0059-0061
(2017/02/23)
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- METHOD FOR PRODUCING FLUOROALKANESULFONIC ANHYDRIDE
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Disclosed is a method for producing a fluoroalkanesulfonic anhydride, which is characterized by that a reaction is conducted while kneading a fluoroalkanesulfonic acid and diphosphorus pentoxide at a temperature that is 40 °C or higher and is lower than 100 °C by using a kneader-type reactor having a maximum power of 1.0 kW or greater per an actual capacity of 100 L and equipped with at least two-shaft blades, that the fluoroalkanesulfonic anhydride to be generated is discharged, and that, while the residue in the reactor after the discharge is kneaded at a temperature that is 100 °C or higher and is lower than 140 °C, the unreacted fluoroalkylsulfonic acid is discharged, recovered and reused as the raw material. It is possible by this method to obtain a fluoroalkanesulfonic anhydride with a high yield.
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Paragraph 0059-0061
(2014/11/12)
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- Interaction of acetonitrile with trifluoromethanesulfonic acid: Unexpected formation of a wide variety of structures
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Interaction of acetonitrile with trifluoromethanesulfonic acid has been studied by multinuclear NMR and ESI-MS. It has been found that the interaction results in formation of a great variety of different cations and neutral compounds which is controlled by the ratio of CH3CN to TfOH. In the presence of an excess of the acid (molar ratio 1:8-14) diprotonated N-acetylacetamidine 1 is formed as the major product, which eventually transforms into protonated acetamidine 3 and acetic acid 4. At molar ratio of (1:1-2) diprotonated 2,4-dimethyl-6-methylidene-3H-1,3,5-triazine 12, tautomer of the diprotonated trimethyl-s-triazine 11, becomes the main product at an early stage of the reaction and diprotonated 1-(dimethyl-1,3,5-triazin-2-yl) prop-1-en-2-ol 15 at a later stage. In the case of a large excess of acetonitrile (4-20:1) trication 17 is formed as a result of the interaction between 11 and 12 along with some oligomers [(CH3CN) 3]n (n = 4-12). The Royal Society of Chemistry 2012.
- Salnikov, George E.,Genaev, Alexander M.,Vasiliev, Vladimir G.,Shubin, Vyacheslav G.
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supporting information; experimental part
p. 2282 - 2288
(2012/04/10)
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- PREPARATION OF SULFONIC ACID ANHYDRIDES
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Sulfonic acid anhydrides, and more particularly triflic anhydride, are prepared by reacting a sulfonic acid or a mixture of two sulfonic acids with a reactant exhibiting acid pseudohalide tautomerism and containing at least one carbon atom which is involved in the tautomerism bearing two halogen atom substituents.
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Page/Page column 4
(2010/04/23)
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- PROCESS FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE
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This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide.
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Page/Page column 4-5
(2008/12/06)
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- C-aryl glucoside SGLT2 inhibitors and method
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A compound of the formula I A method is also provided for treating diabetes and related diseases employing the above compound alone or in combination with another therapeutic agent.
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Page/Page column 8; 14; 15
(2008/06/13)
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- Stable phosphinous acids
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The electronic properties of organyl element compounds are strongly influenced by the electronic characteristics of the organic substituents. The bonding of two CF3 groups to a phosphorus atom effects a drastically decreased basicity. That is the phosphorus atom is the least basic centre in the compound (CF3)2POH. This compound, synthesized in 1960 by Burg and Griffiths, is the only known example of a phosphinous acid, although there should be a general interest in this class of compounds. However, only a few investigations have been reported which may be explained by the tedious and risky synthesis. In this paper a safe one step and high yield synthesis of (CF3)2POH is described. The compound (C6F 5)2POH, originally claimed as a phosphinous acid, is proved to exist at room temperature exclusively in the tautomeric oxide form. (C6F5)2P(O)H crystallizes in the triclinic space group P1? (no. 2) with a 992.9(1) pm; b 1501.9(2) pm; c 1539.4(2) pm; α 117.48(1)°; β 100.39(1)°; γ 96.02(1)° and Z 6. Quantum chemical investigations prove the electron withdrawing effect of s-triazinyl groups (1,3,5-triazin-4-yl derivatives) to be much stronger than that of pentafluorophenyl groups. Quantum chemical calculations at the B3PW91/6-311G(3d,p) level of theory predict for the bis(s-triazinyl) derivative (C3N3H2)2POH the phosphinous acid isomer to be favored by ΔEZP = 22 kJ/mol in relation to the corresponding phosphane oxide isomer. The phosphinous acid (CF3) 2POH (Cs symmetry) is favored at the same level of theory by about ΔEZP = 14 kJ/mol compared with the phosphane oxide structure (Cs symmetry).
- Hoge, Berthold,Neufeind, Stefan,Hettel, Sonja,Wiebe, Waldemar,Th?sen, Christoph
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p. 2382 - 2387
(2007/10/03)
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- Phosphine ligands
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Compounds of Formula (I) wherein R, R1, R2 and R9 are as herein defined, processes for their preparation and transition metal complexes comprising such compounds are disclosed. The complexes may be attached to insoluble supports and are useful as asymetric catalysts. STR1
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- Attempted stereocontrol at C-2' of strigol-type compounds by a Michael reaction/elimination approach
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By a Michael addition/nucleophilic substitution/elimination sequence the stereocontrol at C-2' in strigol-typed compounds is in principle possible. However, the method is unsuitable for practical application since it has been shown that a stereolabile intermediate is involved.
- Roehrig, Susanne,Hennig, Lothar,Findeisen, Matthias,Welzel, Peter,Frischmuth, Katja,Marx, Andreas,Petrowitsch, Tanja,Koll, Peter,Mueller, Dietrich,Mayer-Figge, Heike,Sheldrick, William S.
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p. 3413 - 3438
(2007/10/03)
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- Cross-coupling reaction of pentacoordinate alkenylsilicates with organic halides and triflates catalyzed by a palladium complex
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Isolated pentacoordinate alkoxy-substituted alkenylsilicates, are readily prepared by mixing alkenyltrialkoxysilane, catechol and triethylamine at room temperature.Cross-coupling reactions of these alkenylsilicates with organic halides or triflates are catalyzed by a palladium complex and proceed very smoothly and cleanly to give the corresponding alkenes.The cross-coupling reactions could be also attained by a one pot operation without isolation of pentacoordinate organosilicates.The mechanism of this cross-coupling reaction is also described here. alkoxy-substituted alkenylsilicate / pentacoordinate silicate / cross-coupling / palladium catalyst / aryl halide / aryl triflate / styrene derivative / 1,3-diene
- Hojo, Makoto,Murakami, Chikara,Aihara, Hidenori,Komori, Ei-ichi,Kohra, Shinya,et al.
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p. 499 - 508
(2007/10/02)
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- Intermediates for preparing cationic-2-heteroaryl-phenyl-carbapenem antibacterial agents
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Carbapenem compounds of the formula STR1 are useful intermediates for preparing antibacterial agents.
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- Oxidation Reactions with HOF and Adducts of HOF and HF with Acetonitrile
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In acetonitrile solution HOF oxides CF3SSCF3 via CF3S(O)nSCF3 (N = 1, 2) to yield 2O.Analogously, CF3Se(O)OH and CF3SeX (X = Cl, Br) are oxidized via CF3Se(VI) intermediates to provide finally 2O.With CH3CN at low temperatures HOF and HF for 1:1 adducts, whose structures have been elucidated by low-temperature X-ray structure analysis.Additional proof for the formation of CH3CN*HF in the liquid phase is provided. - Key Words: Oxidation by HOF / Hypofluorous acid / Addition compounds of HOF and HF with acetonitrile
- Dunkelberg, Oliver,Haas, Alois,Klapdor, Martin Frank,Mootz, Dietrich,Poll, Wolfgang,Appelman, Evan Hugh
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p. 1871 - 1876
(2007/10/02)
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- Oxymetallation. Part 24. Preparation of cyclic peroxides by cycloperoxymercuriation of unsaturated hydroperoxides
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Seventeen unsaturated hydroperoxides have been converted by treatment with mercury(II) acetate and/or mercury(II) nitrate into nineteen new mercuriated cyclic peroxides and by subsequent demercuriation with alkaline sodium borohydride, six new mercury-free peroxides have been isolated. The results greatly extend the range of such reactions and provide information about the stereoselectivities and relative ease of several different modes of cycloperoxymercuriation. It is suggested that the reactions with mercury(II) acetate are kinetically controlled whereas those with mercury(II) nitrate show a component of thermodynamic control of product distribution.
- Bloodworth,Curtis,Spencer,Tallant
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p. 2729 - 2750
(2007/10/02)
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- THE THERMAL CLEAVAGE OF BORON TRIS-TRIFLUOROMETHANESULFONATE (TRIFLATE) AND BORON TRIS-PENTAFLUOROETHANESULFONATE (PENTFLATE) TO TRIFLIC (PENTFLIC) ANHYDRIDE AND TRIFLUOROMETHYL TRIFLATE (PENTAFLUOROETHYL PENTFLATE)
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Cleavage of boron tris-trifluoromethanesulfonate(triflate) and boron tris-pentafluoroethanesulfonate(pentflate) was studied at 200 degC.Complete cleavage giving boron trifluoride, sulfur dioxide, carbonyl fluoride (trifluoroacetyl fluoride), triflic (pentflic) anhydride, triflic (pentflic) triflate (pentflate) and boric acid was observed.A mechanism for the cleavage based on formation of the identified compounds is suggested.
- Olah, G. A.,Weber, T.,Farooq, O.
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p. 235 - 242
(2007/10/02)
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- Preparation, reactions, and characterization of trichloroselenium(IV) and trichlorotellurium(IV) sulfonates: SeCl3(XSO3) and TeCl3(XSO3) with X = CF3, CH3, and p-CH3C6H4
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THe compounds trichloroselenium(IV) and trichlorotellurium(IV) sulfonates, MCl3(XSO3) (M = Se and Te; X = CF3, CH3, and p-CH3C6H4), have been prepared and characterized by elemental analysis and infrared spectroscopy.Infrared spectra suggest that the XSO3- group acts as a monodentate ligand in the Se compounds and as a tridentate ligand in the Te compounds.MCl3(CF3SO3) (M = Se and Te) are found to act as CF3SO3- ion acceptors, and compounds (C2H5)4N have been isolated.Some other reactions involving ligand substitution and complex formation have also been investigated.Reactions of potassium tellurate(IV) with trifluoromethane-, methane-, and paratoluenesulfonic acids are seen to yield K2, K2 and K2, respectively.Key words: trichloroselenium(IV) sulfonates, trichlorotellurium(IV) sulfonates, tetraethylammonium trichlorobis(trifluoromethanesulfonato)selenate(IV), tetraethylammonium trichlorobis(trifluoromethanesulfonato)tellurate(IV), IR spectra.
- Kapoor, Ramesh,Wadhawan, Poonam,Katyal, Vandana,Sood, Vijay Rani,Kapoor, Pratibha
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p. 1760 - 1764
(2007/10/02)
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- The Interaction of Arenesulphonyl Chlorides, Aluminium Chloride, and Saturated Alicyclic Hydrocarbons containing at least One Tertiary Hydrogen Atom
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Cycloalkanes having at least one tertiary hydrogen react with a mixture of benzenesulphonyl chloride and aluminium chloride in carbon disulphide, with reactivity decreasing in the order cis-decalin ca. cis-hexahydroindane > trans-decalin >/= dicyclohexyl > methylcyclohexane > t-butylcyclohexane > methylcyclopentane.Although hydrogen chloride was evolved and benzenesulphonyl chloride was reduced to benzenesulphinic acid in all the reactions, only cis-decalin, and, to a much smaller extent, dicyclohexyl, gave appreciable amounts of chloro- or dichloro-cycloalkanes.In other reactions the major products were hydrocarbon "dimers" and "trimers" apparently formed by attack by the carbenium ion on cycloalkenes formed in the reaction.Electron-attracting substituents in the arenesulphonyl chloride enhanced the rate of reaction with cis-decalin, and electron-donor substituents retarded the reaction, which appears to proceed via hydride-ion abstraction by the arenesulphonyl halide-aluminium halide "oxonium complex" rather than by the (+) ion.
- Ewedemi, Rotimi O.,Fields, Roy,Holt, Geoffrey
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p. 1466 - 1500
(2007/10/02)
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- Interconversion of (R) and (S)-α-hydroxy esters: precursors of (S) and (R)-O-benzyl-α-hydroxylamino acid esters of high optical purity.
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(R)- and (S)-α-hydroxy esters 5 are interconverted via their triflates 6 in high chemical as well as optical yields by reaction with dimethylformamide.The same triflates are efficiently converted into N-hydroxy-α-amino acid derivatives 7 of high optical purity.
- Feenstra, R. W.,Stokkingreef, E. H. M.,Nivard, R. J. F.,Ottenheijm, H. C. J.
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p. 5583 - 5596
(2007/10/02)
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- REACTIVITE DES ESTERS SULFONIQUES ET PYROSULFONIQUES PERFLUORES RFSO3RF ET RFSO3SO3RF. HETEROLYSE DE LA LIAION S-O
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Perfluoroalkyl perfluoroalkanesulfonates RFSO3R'F (RF, R'F = CF3, C2F5) and perfluoroalkyl perfluoroalkanepyrosulfonates RFSO3SO3RF, mixed with perfluoroalkanesulfonic acids (CF3SO3H or C2F5SO3H) decompose thermally.Depending on the starting materials, different products result from nucleophilic attack of a perfluoroalkanesulfonate anion of the acid on the sulfur atom of the sulfonate group of the ester, with heterolysis of the S-O bond.Therefore, under these conditions, the perfluorinated esters are not perfloroalkylating agents, but rather perfluorosulfonylating agents.
- Oudrhiri-Hassani, M.,Brunel, D.,Germain, A
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p. 163 - 178
(2007/10/02)
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- Syntheses of the Two Epimeric 5'-Methylcytidines, their 5'-Phosphates and 3H>-5'-Pyrophosphates, and the Two 5'-Methyldeoxycytidines. A Novel Cytosine Anhydro-nucleoside with Two Oxygen Bridges between the Base and the Sugar
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In a series of experiments the starting materials were methyl 2,3-O-isopropylidene-β-D-allo- and -α-L-talofuranosides.These were converted in two steps into the corresponding 2,3,5-tri-O-benzoyl esters, (5) and (11), which were coupled with N-acetylbis(trimethylsilyl)cytosine in the presence of tin(IV) chloride, to the protected nucleosides (19) and (20).Alkaline methanolysis gave the free cytidine homologues, 1-(6-deoxy-β-D-allo- and -α-L-talo-furanosyl)cytosine (23) and (28), which were converted into the crystalline 5'-phosphates (24) and (29), and hence to the dilithium salts of the 5'-pyrophosphates, (25) and (30), by standard procedures.These were labelled at C-5 by bromination, followed by catalytic reduction in tritium gas.The same methyl furanoside starting materials were converted into the 3,5-dibenzoates, (3) and (9), by deacetalation followed by monobenzoylation by the stannylene procedure.Substitution of iodine via the 2-trifluoromethanesulphonates gave iodides which were reduced by tributylstannane to methyl 3,5-di-O-benzoyl-2,6-dideoxy-β-D-ribo- and α-L-lyxo-hexofuranosides (7) ang (13).Coupling of these in the same way as above, followed by alkaline methanolysis, gave the two deoxycytidine homologues, 1-(2,6-dideoxy-β-D-ribo- and -α-L-lyxo-hexofuranosyl)cytosine, (16) and (17), together with their anomers (14) and (15).In another approach to these nucleosides, 4-N-acetyl-2',3'-O-isopropylidenecytidine was oxidized to the aldehyde (33) which was condensed with dimethylsulphoxonium methylide to a mixture of epoxides (34) and (35).Hydrogen bromide opening , followed by tributylstannane reduction, converted these epoxides into 4-N-acetyl-1-(2,3-O-isopropylidene-6-deoxy-β-D-allo- and -α-L-talo-furanosyl)-2H-pyrimidine (39), the first reported anhydro-nucleoside with two oxygen bridges between the base and the sugar, available in 18percent overall yield from protected cytidine.
- David, Serge,Sennyey, Gerard de
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p. 385 - 394
(2007/10/02)
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- Further reactions of chlorine(I) and bromine(I) trifluoromethanesulfonate and bromine(I)fluorosulfate
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Substitutive electrophilic dehalogenation reactions of CF3SO2OX (X=Cl,Br) are reported with some covalent inorganic chlorides. These reactions result in the formation of XX′(X,X′Cl,Br) and several new trifluoromethanesulfonate derivatives in excellent yields. Chlorine(I) trifluoromethanesulfonate also oxidatively adds to unsaturated inorganic substrates such as CO, SO2 and SF4 forming new compounds. The reactivity of CF3SO2OCl is rather similar to that of FSO2OBr and some comparisons between the two are given.
- Johri, Kamalesh K.,Katsuhara, Yutaka,DesMarteau, Darryl D.
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p. 227 - 242
(2007/10/02)
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- Deuterium Isotope Effects for Migrating and Nonmigrating Groups in the Solvolysis of Neopentyl-Type Esters
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α- and γ-deuterium rate effects on the solvolysis of (1-methylcyclohexyl)methyl, (1-methylcyclopentyl)methyl, and (1-methylcyclobutyl)methyl sulfonate esters have been measured and the solvolysis products examined by 2H NMR spectroscopy.The results indicate that the products of the solvolysis of all these sulfonate esters are predominantely ((*) 98percent) rearranged.In the solvolysis of (1-methylcyclohexyl)methyl triflate, rearranged products with methyl migration slightly dominate over those with ring expansion.Normal isotope effects, 1.057 in 80E and 1.073 in 97T, are observed for the methyl-d3 compound and an inverse effect, 0,963, is observed in 80E for the methylene-d4 compound.However, in the solvolysis of both (1-methylcyclopentyl)methyl and (1-methylcyclobutyl)methyl sulfonates, the major products are those of ring expansion.In these examples, inverse effects are observed for the methyl-d3-labeled species.The observed isotope effects can be separated into respective values of 0.927, 0.913 for the nonmigrating methyl-d3 group and 1.177, 1.224 for the migrating methyl-d3 group in the solvolysis of (1-methylcyclohexyl)methyl triflate and (1-methylcyclopentyl)methyl brosylate.This explains the relative intramolecular migratory aptitudes of CH3/CD3 of 1.20 - 1.30 and the low γ-d9 isotope effect in the solvolysis of neopentyl sulfonates previously reported and makes them consistent with a mechanism which involves neighboring carbon participation during ionization.
- Shiner, V. J.,Tai, Jimmy J.
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p. 436 - 442
(2007/10/02)
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- Synthesis of Perfluoroalkyl Trifluoromethanesulfonates from Perfluoroalkyl Halides. Substitutive Electrophilic Dehalogenation with Chlorine(I) and Bromine(I) Trifluoromethanesulfonates
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The reactions of chlorine(I) and bromine(I) trifluoromethanesulfonates with a variety of perfluoroalkyl halides are reported.The reactions form Br2, Cl2, or BrCl and the corresponding trifluoromethanesulfonate derivatives of the alkyls in good yields.Twelve new esters are reported and characterized.An SEi-type mechanism for the reactions is proposed with complete retention of configuration by the alkyl on substitution.
- Katsuhara, Yutaka,DesMarteau, Darryl D.
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p. 2681 - 2686
(2007/10/02)
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- SYNTHESIS OF TRIFLUOROMETHANESULFONATE ESTERS BY REATION OF ALKYL CHLORIDES WITH CHLORINE (I) AND BROMINE (I) TRIFLUOROMETHANESULFONATE
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The synthesis of the first trifluoromethanesulfonate esters of the type CF3SO3(CH2)nO3SCF3(n=1,2,3) are reported.The new compounds are prepared from Cl(CH2)nCl by substitutive electrophilic dehalogenation reactions with CF3SO2OX (x=Cl,Br).The extension of this reaction to HCCl3 results in HC(O3SCF3)3 but the compound is unstable at 22 deg.
- Katsuhara,Yutaka,Desmarteau, Darryl D.
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p. 257 - 264
(2007/10/02)
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- Preparation and properties of bis(trifluoromethylsulfuryl) peroxide and trifluoromethyl trifluoromethanesulfonate
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Electrolysis of trifluoromethanesulfonic acid at -23° yields the unstable compound bis(trifluoromethylsulfuryl) peroxide, which decomposes explosively to perfluoroethane, sulfur trioxide, and the ester, trifluoromethyl trifluoromethanesulfonate.
- Noftle, Ronald E.,Cady, George H.
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p. 1010 - 1012
(2008/10/08)
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