41320-40-5Relevant articles and documents
Superoxide ion-promoted facile one-pot synthesis of O-alkyl-S-methyl dithiocarbonates from alcohol under mild reaction conditions
Singh, Satish Kumar,Singh, Krishna Nand
, p. 94 - 97 (2011)
A new, mild, and efficient protocol for the one-pot synthesis of O-alkyl-S-methyl dithiocarbonates (xanthates) has been described in reasonably good yields from a variety of alcohols employing carbon disulfide and methyl iodide using superoxide ion at room temperature. Copyright Taylor & Francis Group, LLC.
Radical alkylphosphanylation of olefins with stannylated or silylated phosphanes and alkyl iodides
Lamas, Marie-Celine,Studer, Armido
supporting information; experimental part, p. 2236 - 2239 (2011/06/23)
Chemical equations presented. Intermolecular conjugate radical addition reactions of secondary and tertiary alkyl radicals derived from the corresponding alkyl iodides to activated olefins such as α,β- unsaturated esters, amides, imides, nitriles, and sulfones are described. The adduct radicals are trapped by either diphenyl(trimethylstannyl)phosphane or the commercially available diphenyl(trimethylsilyl)phosphane as chain transfer reagents to give the corresponding phosphanylated products in moderate to good yields. The overall process comprises a C-C followed by a C-P bond formation.
Experimental determination of the conformational free energies (A values) of fluorinated substituents in cyclohexane by dynamic 19F NMR spectroscopy. Part 2. Extension to fluoromethyl, difluoromethyl, pentafluoroethyl, trifluoromethylthio and trifluoromethoxy groups
Carcenac, Yvan,Tordeux, Marc,Wakselman, Claude,Diter, Patrick
, p. 447 - 457 (2007/10/03)
The synthesis of monosubstituted and 1,4-substituted cyclohexanes bearing one of the title groups is described. The conformational analysis of these compounds was studied by 19F NMR spectroscopy at various temperatures. Chemical shifts for each conformer above the coalescence temperature were obtained by binomial regression from low temperature values, allowing the high precision determination of the equilibrium constants, and the corresponding thermodynamic parameters (ΔG°, ΔH°, ΔS°) of the fluorinated substituents. For A values (-ΔG°298K), the following averaged data were obtained: 1.59 (CFH2), 1.85 (CF2H), 2.67 (C2F5), 0.79 (OCF3) and 1.18 (SCF3) [in kcal mol-1]. the Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2006.
