Scheme 107. Synthesis of Thiophene-Fused Perylenoids.
R = t-Bu. Reagents and conditions: (a)215 [Rh(Cp*)Cl2]2, AgOAc, DMF, 100 °C, 16 h, 70%; (b) FeCl3, 1:2 MeNO2/DCM, rt, 1 h, 90%; (c) MeSO3H, DDQ, DCM, 0 °C, 2 h, 49%.
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