65682-02-2Relevant academic research and scientific papers
Oxidative cross-coupling of vinylsilanes in water
Cicco, Stefania R.,Martinelli, Carmela,Pinto, Vita,Naso, Francesco,Farinola, Gianluca M.
, p. 15 - 20 (2013/06/27)
Palladium-promoted cross-dimerization reaction of alkenylsilanes is reported for the first time, which is also one of the very first studies on oxidative cross-coupling between vinylic organometallic reagents. The reaction occurs at room temperature in aqueous micelles and represents a convenient access to all-trans push-pull butadienes.
N-Vinylpyridinium tetrafluoroborate salts as reagents for the stereoselective and regioselective synthesis of symmetrical (2E,4E)-1,6-dioxo-2,4-dienes
Gao, Ge,Brown, Neil,Minatoya, Machiko,Buszek, Keith R.
scheme or table, p. 6491 - 6494 (2009/04/06)
We had previously demonstrated the utility of N-vinylpyridinium tetrafluoroborate salts as novel electrophilic coupling partners in Pd(0)-catalyzed Suzuki cross-coupling reactions with aryl and vinyl boronic acids. We now report that these crystalline, air-stable, and non-hygroscopic salts are also useful reagents for the synthesis of symmetrical (2E,4E)-1,6-dioxo-2,4-dienes (diene diones), which in turn are valuable starting materials for the synthesis of various five-membered heterocycles. The optimization of reaction conditions and the scope and limitations of the reductive dimerization are discussed.
"Head-to-head" dimerization and dehydrodimerization of vinyl ketones catalyzed by modified rhodium(I) complexes
Kovalev, I. P.,Kolmogorov, Yu. N.,Strelenko, Yu. A.,Ignatenko, A. V.,Vinogradov, M. G.,Nikishin, G. I.
, p. 125 - 133 (2007/10/02)
The dimerization of vinyl ketones RC(O)CH=CH2, I (R = Me, tBu, Ph, p-MeC6H4, cyclopropyl, 2-(5-methylfuryl)) at 80 deg C in the presence of the catalytic system 2-MCl2 leads preferably to either α,β-unsaturated 1,6-diketones RC(O)C
