Aj. Ashe et al., Reaction of bis(1-substituted-1-boratabenzene)bis-(trimethylphosphine)zirconium(II) with 1,3-diynes, ORGANOMETAL, 18(20), 1999, pp. 4234-4236
1,4-Diphenyl-1,3-butadiyne readily displaces PMe3 from bis(N,N-diisopropyl-
1-amino-1-boratabenzene)bis(trimethylphosphine)zirconium(II) to afford a 1:
1 adduct which contains a 2,5-diphenyl-1-zirconacyclopenta-2,3,4-triene uni
t.