Metal-Catalyzed Oxidation and Epoxidation of α-Hydroxy Vinyl and Dienyl Sulfoxides
作者:Roberto Fernández de la Pradilla、Alejandro Castellanos、Jorge Fernández、Milagros Lorenzo、Pilar Manzano、Paloma Méndez、Julián Priego、Alma Viso
DOI:10.1021/jo052244d
日期:2006.2.1
Treatment of acyclic α-hydroxyalkyl α,β-unsaturated sulfoxides with t-BuOOH/VO(acac)2 results in rapid oxidation to the unsaturated sulfones followed by an unusual regio- and stereoselective epoxidation at the unsaturated sulfones; this methodology has been applied to the preparation of carbohydrate-like fragments.
Enantiopure 1,4-Diols and 1,4-Aminoalcohols via Stereoselective Acyclic Sulfoxide−Sulfenate Rearrangement
作者:Roberto Fernández de la Pradilla、Ignacio Colomer、Mercedes Ureña、Alma Viso
DOI:10.1021/ol200718y
日期:2011.5.6
Treatment of acyclic α-hydroxy and α-tosylamino sulfinyl dienes with amines affords enantiopure 1,4-diol or 1,4-hydroxysulfonamide derivatives in good yields and diastereoselectivities. This one-pot procedure entails a conjugate addition that triggers a diastereoselective sulfoxide−sulfenate [2,3]-sigmatropic rearrangement.
Fernandez De La Pradilla, Roberto; Mendez, Paloma; Priego, Julian, Journal of the Chemical Society. Perkin transactions I, 1999, # 10, p. 1247 - 1249
作者:Fernandez De La Pradilla, Roberto、Mendez, Paloma、Priego, Julian、Viso, Alma
DOI:——
日期:——
Highly diastereoselective dihydroxylation of cis-substituted sulfonyl vinyl oxiranes
作者:Roberto Fernández de la Pradilla、Paloma Méndez、Alma Viso
DOI:10.1016/s0040-4039(00)00275-6
日期:2000.4
Nucleophilic Epoxidation of α‘-Hydroxy Dienyl Sulfoxides
作者:Roberto Fernández de la Pradilla、Pilar Manzano、Carlos Montero、Julián Priego、Martín Martínez-Ripoll、Luis A. Martínez-Cruz
DOI:10.1021/jo0349173
日期:2003.10.1
densely functionalized epoxy sulfinyl tetrahydrofurans, based on the unexpected and highlystereoselective remote nucleophilic epoxidation of hydroxy 1-sulfinyl butadienes with t-BuOOK, followed by ringclosure and subsequent epoxidation of the resulting sulfinyl dihydrofurans, is described. Alternatively, the treatment of these dienes with m-CPBA followed by acid-catalyzed cyclization gives rise to related