Fig. 4
From: Nickel-catalyzed intermolecular oxidative Heck arylation driven by transfer hydrogenation

A series of experiments to study the mechanism of the γ-selective hydroarylation. a The control experiment in the absence of arylboronic acid. b The monitoring of the alkene substrate in hydroarylation for 5 h. c Deuterium incorporation into isomerized alkene. d The hydroarylation reaction in the presence of the compound A18 for 5 h. e The reaction by use of PnBu3 as the ligand for 5 h