Syntheses and Anion Binding Capabilities of Bis(diarylboryl) Ferrocenes and Related Systems
journal contributionposted on 13.05.2013 by Michael J. Kelly, Alexander E.J. Broomsgrove, Ian R. Morgan, Inke Siewert, Philip Fitzpatrick, Jessica Smart, Dragoslav Vidovic, Simon Aldridge
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Isomeric diborylated ferrocenes featuring 1,1′-, 1,2-, and 1,3-substitution patterns have been targeted via a combination of electrophilic aromatic substitution and directed ortho-lithiation protocols. While none of these systems are competent for the Lewis acid chelation of fluoride, related systems featuring a mixed B/Si acceptor set capture 1 equiv of fluoride via a Si–F–B bridging motif.