30 research outputs found
Ionic Liquids: New Targets and Media for α-Amino Acid and Peptide Chemistry
No full textInternational audienc
Thiazolinium and imidazolium chiral ionic liquids derived from natural amino acid derivatives
No full textInternational audienceStarting from commercially available amino acid derivatives, two novel families of chiral ionic liquids having either a thiazolinium or an imidazolium cation were prepared by simple and straightforward procedures in good overall yields. The properties of these new salts can be finely tuned by careful selection of the anion and the cation
Synthesis of Thioacrolein S-Oxide and Thioketene S-Oxide using FVT
No full textFVT was used to synthesize thioacrolein S-oxide and thioketene S-oxide. These reactive species were characterized at low temperature by IR and/or NMR spectroscopie
In search for thioketene S-oxide. A vinyl sulfoxide to sulfine rearrangement
No full textTwo approaches to thioketene S-oxide have been tested. This reactive heterocumulene was tentatively characterized by low temperature IR spectroscopy. In the course of this study, an unexpected vinyl sulfoxide to sulfine rearrangement was observe
Gas-phase generation and photoelectron spectra of reactive unsubstituted cycloalkenethiones
No full textInternational audienceThe flash vacuum thermolysis of cycloalkenyl allyl sulfides, potential precursors of unsubstituted cycloalkenethiones, has been investigated by photoelectron spectroscopy. This technique allowed us to characterize in the gas phase very reactive species of this series, the conjugated and nonconjugated cyclopentene and cyclohexenethiones, and to compare the reactivity of these compounds. The assignment of the PE spectra is supported by electronic structure calculations, particularly by the HF method at the MP2 level and the density functional theory (DFT) using the B3LYP and BP86 functionals with the 6-311G(d, p) basis set. © 2001 Academic Press
