C60-Induced Alkyne Cycloaddition with W(CO)(PhC≡CPh)3
摘要:
Reaction of C-60 and W(CO)(PhC CPh)(3) in refluxing o-dichlorobenzene affords the fullerene complexes W(CO)(eta(2)-C2Ph2)(eta(2)-C-60)(eta(4)-C4Ph4) (4) and W( CPh)(CO)(eta(2)-C-60)(eta(5)-C5Ph5) (5) and the eta(3)-benzyl complex W(CO)(2)(eta(5):eta(3)-C5Ph4(o-C6H4)CHPh) (6), The carbocylic groups in these compounds are arising from [2 + 2] and [2 + 2 + 1] cycloaddition of the diphenylacetylene ligands, likely induced by coordination of the bulky C-60 molecule. The structures of 4 and 6 have been determined by an X-ray diffraction study.