“…The product [BuPy]Cl (99 g, 92%) was obtained as white crystalline solid. Mp 87 °C (lit., 38 86 °C); 1 H-NMR (500 MHz, DMSO- d 6 ) δ 0.89 (s, 3H, CH 3 ), 1.28 (s, 2H, CH 2 ), 1.89 (s, 2H, CH 2 ), 4.72 (t, J = 10.0 Hz, 2H, N–CH 2 ), 8.20 (s, 2H, CH ), 8.66 (s, 1H, CH ), 9.35 (s, 2H, CH N + ); 13 C-NMR (125 MHz, DMSO- d 6 ) δ 145.66, 144.77, 128.04, 60.19, 32.60, 18.95, 13.45.…”