Fig. 1: Nickel-catalyzed regioselective strategy for 1,3-dienylation and enantioselective allenylation.
From: Nickel-catalyzed switchable 1,3-dienylation and enantioselective allenylation of phosphine oxides

A Pd-catalyzed enantioselective allenylation. B Ru-catalyzed enantioselective propargylic phosphinylation. C This work: Ni-catalyzed 1,3-dienylation and enantioselective allenylation.