“…IR (KBr): 2 220 (C N), 1 602 (C C, Ar), 1 247 cm À1 (C-O-C). 1 H NMR (300 MHz, CDCl 3 ): d ¼ 1.57 (6H, m, (CH 2 ) 3 ), 1.82 (2H, qn, CH 2 ), 3.48 (2H, t, CH 2 ), 4.01 (2H, t, CH 2 ), 4.52 (2H, s, CH 2 ), 6.99 (3H, m, ArH), 7.21 (2H, m, ArH), 7.53(2H, d, ArH), 7.67 (4H, m, ArH).…”