Palladium catalysed regio- and, where appropriate, stereo-specific tri
scyclisation-anion capture processes are described involving vinyl- an
d allenyl-starter species, alkene/alkyne relay and terminating species
and anion capture by allene/nucleophile (PhSO(2)Na or s-amine) or 2-t
hienyl tributylstannane. (C) 1997 Elsevier Science Ltd.