Scheme 20. One-Shot Multiple Borylation toward BN-Doped Nanographenes.
Reagents and conditions: (a)31 BI3, Ph3B, o-DCB, reflux, 20 h; (b) BI3, Ph3B, 1,2,4-trichlorobenzene, 200 °C, 20 h; (c) BI3, o-DCB, reflux, 12 h.
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