Fig. 8: Proposed Mechanism.

a Proposed carbometallation pathway for the enantioselective reductive trans-arylative cyclization. b Proposed allylic oxidative addition pathway for the enantiospecific reductive cis-alkylative cyclization.
a Proposed carbometallation pathway for the enantioselective reductive trans-arylative cyclization. b Proposed allylic oxidative addition pathway for the enantiospecific reductive cis-alkylative cyclization.