Synthesis and Electrochemical Properties of 2,5-Disubstituted 1,4-Bis(4,5-diphenyl-1H-imidazol-2-yl)benzene Derivatives

Copper borate (CuB4O7)-promoted multi-component green synthesis of 2,4,5-triarylimidazole derivatives and evidence of in situ conversion of copper borate (CuB4O7) into Cu(OAc)2 in the presence of NH4OAc

“…Yellow solid, yield = 86%, melting point (°C) = 210–212, IR (KBr, cm −1 ) υ max = 3443, 3424 (NH), 3048 (aromatic C–H), 1654 (C C), 1605, 1531 (C N), 1 H NMR (400 MHz, DMSO-d 6 ): δ 12.72 (s, 1H, NH), 8.21 (d, 2H), 7.25–7.55 (m, Ar H, 14H) ppm; 13 C NMR (100 MHz, DMSO d 6 ): δ 148.2, 137.7, 133.3, 130.4, 128.9, 128.6, 127.1, 126.9, 124.2 ppm [lit. 101 ].…”