PS-BEMP was used as a heterogeneous catalyst for the phospha-Michael addition of phosphorus nucleophiles to a variety of electron-poor alkenes. The addition reactions were generally performed with equimolar amounts of reagents under solvent free conditions. The protocol proved to be very efficient for the addition to aromatic, non-aromatic and cyclic ketones, giving good yields (78–85%) in all cases
The regioselective hydro/deuterophosphonylation of electron-richalkenes with P(O)H compounds has been realized via a metal-free electrochemically induced strategy, accessing various Markovnikov-type adducts in high yields. A series of monodeuterated organophosphorus compounds with high deuterium (D) incorporation are subsequently obtained by adding D2O as the D source. The protocol features broad
Influence of Substitution at the Benzylic Position on the Behavior of Stereoisomeric Phosphorus Compounds as Precursors of Stabilized Carbon-Centered Radicals
作者:Julia Pérez-Prieto、Raquel Eugenia Galian、Pascual Oña Burgos、Maria del Carmen Morant Miñana、Miguel Angel Miranda、Fernando López-Ortiz
DOI:10.1021/ol051254y
日期:2005.9.1
Efficient benzylic radical formation from benzo[d]-1,2-oxaphospholes has demonstrated their suitability as precursors of stabilized C-centered radicals, a property associated with antioxidant potential. A remarkable stereodifferentiation is observed for alkyl- and aryl-substituted derivatives.
Osipova, M. P.; Mikhailova, L. A.; Kukhtin, V. A., Journal of general chemistry of the USSR, 1982, vol. 52, # 2, p. 394
作者:Osipova, M. P.、Mikhailova, L. A.、Kukhtin, V. A.