Resolution of Diols via Catalytic Asymmetric Acetalization
作者:Ji Hye Kim、Ilija Čorić、Chiara Palumbo、Benjamin List
DOI:10.1021/ja512481d
日期:2015.2.11
A highly enantioselective kinetic resolution of diols via asymmetricacetalization has been achieved using a chiral confined imidodiphosphoric acid catalyst. The reaction is highly efficient for the resolution of tertiary alcohols, giving selectivity factors of up to >300. Remarkably, even in cases where the selectivity factors are only moderate, highly enantioenriched diols are obtained via a stereodivergent
Absolute Configurations of α-Substituted Glycidates. (−)-(<i>R</i>)-Ethyl 2-Methyl-1-oxaspiro[2.5]octane-2-carboxylate and (−)-(<i>R</i>)-Ethyl 2,3-Dimethyl-2,3-epoxybutanoate