title: Practical manganese-catalysed highly enantioselective cis-dihydroxylation of electron-deficient alkenes and detection of a cis-dioxomanganese(V) intermediate by high resolution ESI-MS analysis.
abstract: A practical protocol has been developed for asymmetric cis-dihydroxylation of electron-deficient alkenes with Oxone catalysed by a manganese complex bearing a chiral tetradentate N(4)-donor ligand affording cis-diols in up to 95% yield with up to 96% ee. Analysis of the reaction mixture by high resolution ESI-MS revealed the formation of a cis-dioxomanganese(V) intermediate.
authors: Department of Chemistry, State Key Laboratory on Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
authors: Toby Wai-Shan
authors: TW
authors: Chow
authors: Yungen
authors: Y
authors: Liu
authors: Chi-Ming
authors: CM
authors: Che