In situ generation of nucleophilic allenes by the gold-​catalyzed rearrangement of propargylic esters for the highly diastereoselective formation of intermolecular C(sp3)​-​C(sp2) bonds - Yu, Yang; Yang, Weibo; Hashmi, A. Stephen K.; Rominger, Frank (Angewandte Chemie. International edition, 2013)