“…3,5-Diphenylpyridine (3a): 34 6, 148.3, 137.6, 133.3, 130.7, 129.4, 127.1, 120.9, 111.2, 55.5 8, 145.9, 136.2, 131.9, 130.2, 128.3, 114.6, 55.4 13 C NMR (100 MHz, CDCl 3 ) δ 149. 4, 149.3, 146.2, 136.4, 132.2, 130.5, 119.7, 111.6, 110.3, 56.0, 55.9 3,4,pyridine (3e): 22 yellow solid; 161 mg (0.39 mmol), 94% yield; mp 227−229 °C; 1 H NMR (500 MHz, CDCl 3 ) δ 8.77 (d, J = 1.2 Hz, 2H), 7.94 (t, J = 1.9 Hz, 1H), 6.81 (s, 4H), 3.95 (s, 12H), 3.92 (s, 6H); 13 C NMR (125 MHz,CDCl 3 ) δ 153.7,146.9,138.4,136.8,133.5,132.7,104.6,60.9,56.3 3,5-Bis(3-bromophenyl)pyridine (3f): cream solid; 136 mg (0.35 mmol), 80% yield; mp 160−165 °C; 1 H NMR (500 MHz, CDCl 3 ) δ 8.80 (s, 2H), 7.98 (t, J = 2.1 Hz, 1H), 7.78 (t, J = 1.6 Hz, 2H), 7.59− 7.55 (m, 4H), 7.38 (t, J = 7.9 Hz, 2H); 13 C NMR (100 MHz, CDCl 3 ) δ 147. 3, 139.5, 135.3, 132.8, 131.3, 130.6, 130.2, 125.8, 123.2 found 387.9332,389.9315,391.9295 respectively.…”