Abstract
Benzoic esters of 2-cyclohexen-1-ol and propargylic alcohols were prepared by direct selective copper-catalyzed allylic and propargylic oxidation of alkenes and alkynes, respectively, using t -butyl peroxybenzoate as the oxidant. The high olefin and acetylene conversions as well as the high product yields were obtained although enantioselectivity of this oxidation was moderate (e.e. < 68%). The reported optimized catalytic procedure is clean since the oxidation is carried out under mild conditions using stoichiometric amounts of oxidant and catalytic amounts of (CuOTf) 2 C 6 H 6 in combination with bisoxazoline ligands.
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