“…3 Hz,1F). IR (KBr): n = 3252, 2923,1707,1447,1332,1167,1082,1064,810,753,723,659,587,560 3,142.4,137.9,134.7,132.1,130.1,129.6,129.1,129.0,126.3,124.2,116.7 (dd,J = 261.5,256.1 Hz),113.5,59.2 (dd,J = 28.4,22.3 Hz), 55.1,20.8;19 F NMR (376 MHz,d 6 -DMSO) d À103.1 (d,J = 257.5 Hz,1F), À110.8 (d,J = 257.5 Hz,1F). IR (KBr): n = 3238, 1703,1515,1335,1256,1165,1086,1063,756,724,677,659,585,541 3, 137.4, 134.8, 132.9, 132.4, 131.0, 129.5, 129.0, 128.7, 127.2, 126.9, 126.0, 125.7, 125.0, 122.0, 117. 142.5, 137.6, 134.8, 132.5, 132.2, 132.0, 129.6, 129.1, 128.8, 127.8, 127.7, 127.4, 126.5,...…”