Remarkable Change of the Diastereoselection in the Dye-Sensitized Ene Hydroperoxidation of Chiral Alkenes by Zeolite Confinement
作者:Manolis Stratakis、Dimitris Kalaitzakis、Dimitris Stavroulakis、Giannis Kosmas、Constantinos Tsangarakis
DOI:10.1021/ol0352660
日期:2003.9.1
[GRAPHICS]The ene reaction of singlet oxygen with chiral trisubstituted alkenes bearing an alkyl and a phenyl group at the stereogenic center is erythro diastereoselective in solution and threo diastereoselective if carried out within zeolite Na-Y. The change of the diastereoselection trend by zeolite confinement is attributed to a synergism of steric effects and cation-pi interactions.