posted on 2000-06-16, 00:00authored byPeter G. Edwards, Mark L. Whatton, Robert Haigh
The first nine-membered triphosphorus macrocycles based on an o-benzobis(ethane-1,2-diyl) core
have been prepared in high yield by the coupling of 1,2-diphosphinobenzene with trivinylphosphine on a cationic
(η5-pentamethylcylopentadienyl)iron(II) template. Hydrogenation of the vinyl function followed by alkylation
of the secondary phosphines gives the coordinated triethyl macrocycle, which has been structurally characterized.