Fig. 6: Proposed reaction mechanism for organosuperacid-bismuth binary system-catalyzed asymmetric allylation.
From: Superacid counteranion as flexible-coordinating ligand for asymmetric organo-bismuth catalysis

Ac acetyl, Bpin boronic acid pinacol ester, iPr isopropyl, OAc acetate, Tf trifluoromethanesulfonyl (triflyl).