Key points are not available for this paper at this time.
Tris(triphenylphosphinegold) oxonium tetrafluoroborate, (Ph3PAu)3OBF4, catalyzes the rearrangement of 1,5-allenynes to produce cross-conjugated trienes. Experimental and computational evidence shows that the ene reaction proceeds through a unique nucleophilic addition of an allene double bond to a cationic phosphinegold(I)-complexed phosphinegold(I) acetylide, followed by a 1,5-hydrogen shift.
Cheong et al. (Sat,) studied this question.