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Figure 2
Synthesis of ferrocene derivatives bearing (2,2′-bipyridyl)boronium substituents. Conditions: (i) reaction with CH2=CHMgCl yields (Ia), with triethylamine and H2NtBu yields (IIa), and with triethylamine and H2NC6H4OMe yields (IIIa); (ii) reaction with NH4PF6 yields (Ib) and (IIIb). |