Figure 2: Synthesis of novel TDI (1).
From: Photoresponse of supramolecular self-assembled networks on graphene–diamond interfaces

(a) Base-induced fusion of naphthaleneimide and peryleneimide: diazabicyclo[4.3.0]non-5-ene, t-BuONa, diglyme, 130 °C, 3 h, 42%; (b) tetrabromination of TDI: Br2, chloroform, reflux, 12 h, 75%; (c) phenoxylation of TDI: 4-(1,1,3,3-tetramethylbutyl)phenol, K2CO3, N-methylpyrrolidone, 80 °C, 8 h, 86%; (d) base-induced hydrolysis of bisimide into bis-anhydride: KOH, KF, 2-methyl-2-butanol, reflux, 53%; and (e) NH-imidization of terrylene bis-anhydride: ammonium acetate, propionic acid, reflux, 20%.