Fig. 2: The synthetic route for the trichalcogenasupersumanenes 1a and 1b.
From: Trichalcogenasupersumanenes and its concave-convex supramolecular assembly with fullerenes

Reagents and conditions: (i) 6.6 equiv. TiCl4, o-dichlorobenzene, (microwave), 180 °C, Ar, 3 h; (ii) 8 equiv. DDQ, 5% TfOH, 1,2-dichloroethane, 50 °C, Ar, 2 h; (iii) 4 equiv. (Bu3Sn)2S or (Bu3Sn)2Se, 1 equiv. Pd(PPh3)4, toluene, 150 °C, Ar, 48 h.