Domino metathesis of 2-azanorbornenones: a new strategy for the enatioselective synthesis of 1-azabicyclic compounds.

Domino metathesis of N-alkylated derivatives of (1S)-2-azanorborn-5-en-3-one allowed for the enantioselective synthesis of pyrrolizidine, quinolizidine, pyrrolidinoazepine, and pyrrolidinoazocine derivatives in a straightforward process.