Fig. 1: Migratory Allylic Substitution Reactions.
From: Migratory allylic arylation of 1,n-enols enabled by nickel catalysis

a Classic allylic substitution reactions. b Migratory coupling reaction via olefin intermediate (well developed). c Migratory allylic substitution reaction via π-allyl metal migration (unexplored). d This work.