Abstract
Polyleucine catalyzes the asymmetric epoxidation of enone ( 1) in a non-aqueous medium to provide epoxy-ketones ( 2) and ( 3) (81 and 84% yields respectively; >98% ee). The epoxy-ketones ( 2) and ( 3) are subsequently cyclized to give 1,2,3,4-tetrahydro-4-quinolones ( 4) and ( 5) respectively.
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