A new and enantioselective indolizidine synthesis by meso-epoxide α-deprotonation–transannular N–C insertion

Abstract

Enantioselective α-deprotonation–rearrangement of N-Boc hexahydroazonine oxide 10 using organolithiums in the presence of (-)-sparteine 3 gives the ester 12 in up to 89% ee.

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