“…IR (KBr) (νmax/cm -1 ): 3140, 1665, 1600, 1489, 1240, 1127, 1078, 920, 807, 664, 625, 533, 461. 1 H NMR (400 MHz, CD3CN): δ 7.65 (d, J = 8 Hz, 2H), 7.23 (d, J = 7.9 Hz, 2H), 2.37 (s, 3H); 13 C NMR (100 MHz, CD3CN): δ 142. 77, 141.29, 129.56, 128.40, 21.40.…”