Abstract
Abstract A mixture of NiCl2, 2,2′-bipyridine (bpy), and Mg in DMF promoted dehalogenative homocoupling of RX (e.g., bromobenzene and p-tolyl bromide) efficiently. This basic coupling reaction was applied for polycondensation of dihaloorganic compounds, X–R′–X, to give poly(9,9-dioctylfluorene-2,7-diyl), poly(9,10-dioctyl-9,10-dihydrophenanthrene-2,7-diyl), and poly(pyridine-2,5-diyl).
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