Do reactions of 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane require fluoride anion catalysis?
作者:Viacheslav A. Petrov、Will Marshall
DOI:10.1016/j.jfluchem.2015.04.003
日期:2015.11
in the absence of metal fluoride catalyst at elevated temperature in DMSO or DMF solvents. While the reactions of vinylethers, phenyl vinylsulfide, dienes and anthracenes under these conditions led to the formation of expected cycloadducts, the reaction of 1,5-cyclooctadiene resulted in the formation of the product derived from an ene reaction with hexafluorothioacetone (HFTA). In contrast to results
New data on the reaction of hexafluorothioacetone with styrenes
作者:Viacheslav A. Petrov、Will Marshall
DOI:10.1016/j.jfluchem.2011.03.024
日期:2011.10
Hexafluorothioacetone, generated in situ from its cyclic dimer (1) in the presence of CsF catalyst was shown to react with styrene or 4-alkyl-styrenes (alkyl = c-hexyl, Me, t-Bu) forming the corresponding 2:1 Diels–Alder cycloadducts as major products. All cycloadducts were isolated, and the structure of two of them was established by single crystal X-ray diffraction. While 2-vinylnaphthalene, 4-CF3-