Alkyne Coupling Reactions Mediated by Iron(II) Complexes: Highly Chemo- and Regioselective Formation of η<sup>6</sup>-Coordinated Arene and Pyridine Complexes
作者:Karine Ferré、Loïc Toupet、Véronique Guerchais
DOI:10.1021/om0201967
日期:2002.6.1
Reaction of the bis(acetonitrile) complex 1 with HC⋮CPh affords the (allyl)carbene complex 3, which results from a head-to-tail coupling of two alkynes. The tris(acetonitrile) complex [Fe(C5Me5)(CH3CN)3][PF6] (2) mediates highly chemo- and regioselective [2 + 2 + 2] cycloaddition reactions of C⋮C and C⋮N triple bonds, providing access to π-arene and -pyridine complexes. The pyridine complex 5a has been