Scheme 49. Synthesis of Azaperylenes via Radical Anion Coupling.
Reagents and conditions: (a) (1) 10–12 equiv of K, DME, rt, or DME, 100 °C for 49.2f, or toluene, 95 °C for 49.2e, ca. 1 day, (2) air, 4 h.
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