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Synthesis of defective nanographenes 99, 103, and 107 containing 7–5–7‐membered rings. Pd(PPh3)4: tetrakis(triphenylphosphine)palladium; K2CO3: potassium carbonate; PdCl2(PCy3)2: bis(tricyclohexylphosphine)palladium(II) dichloride; DMF: N,N‐dimethylformamide; Ni(cod)2: bis(1,5‐cyclooctadiene)nickel(0).[ 99 ]
