582298-94-0Relevant academic research and scientific papers
Solvent-free palladium-catalyzed addition of diaryl dichalcogenides to alkynes
Ananikov,Beletskaya
, p. 561 - 565 (2007/10/03)
Solvent-free palladium-catalyzed addition of diaryl disulfides and diselenides to terminal alkynes makes it possible to achieve high stereoselectivity and almost 100% yields in ≈10 min using only 0.1 mol.% catalyst. Both Pd(PPh3)4 an
Palladium-catalyzed addition of disulfides and diselenides to alkynes under solvent free conditions
Ananikov, Valentine P.,Beletskaya, Irina P.
, p. 284 - 287 (2007/10/03)
An efficient methodology was developed for performing palladium-catalyzed E-E (E = S, Se) bond addition to alkynes under solvent free conditions. Compared to reaction in solvent significant enhancement of reaction rate, improved efficiency and remarkable
Mechanistic study of palladium catalyzed S-S and Se-Se bonds addition to alkynes
Ananikov, Valentine P.,Kabeshov, Michael A.,Beletskaya, Irina P.,Aleksandrov, Grigory G.,Eremenko, Igor L.
, p. 451 - 461 (2007/10/03)
The mechanistic study of palladium catalyzed S-S and Se-Se bonds addition to alkynes revealed the involvement of dinuclear transition metal complexes in the catalytic cycle. Coordination of alkyne to dinuclear transition metal complex was found to be the rate determining step of the reaction. An unusual phosphine ligand effect increasing the yield of addition reaction was found in the studied system. A new synthetic procedure was developed to perform the catalytic reaction using easily available Pd(II) complex. The scope of the reaction and the reactivity of S-S and Se-Se bonds toward alkynes were investigated. The X-ray structure of the product of S-S bond addition reaction showed favorable geometry for the possible application as a chelate ligand.
