title: Highly diastereoselective epoxidation of allyl-substituted cycloalkenes catalyzed by metalloporphyrins.
abstract: Highly diastereoselective epoxidations of allyl-substituted cycloalkenes including allylic alcohols, esters, and amines using sterically bulky metalloporphyrins [Mn(TDCPP)Cl] (1) and [Ru(TDCPP)CO] (2) as catalysts have been achieved. The "1 + H(2)O(2)" and "2 + 2,6-Cl(2)pyNO" protocols afforded trans-epoxides selectively in good yields (up to 99%) with up to >99:1 trans-selectivity.
authors.affiliation: Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
authors.forename: Wing-Kei
authors.initials: WK
authors.lastname: Chan
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.forename: Wing-Yiu
authors.initials: WY
authors.lastname: Yu
authors.forename: Man-Kin
authors.initials: MK
authors.lastname: Wong
authors.forename: Chi-Ming
authors.initials: CM
authors.lastname: Che