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  • Yellow solid (83.1% yield); m.p.: 105-107 °C (lit. [60] 104-106 °C); UV-Vis (MeOH) λ: 338-339 nm; IR (KBr, cm): 3460 (O-H), 2945-3014 (Ar C-H stretch), 1634 (C=O), 1567-1585 (C=C-C=O), 1342-1443 (C=C), 1213-1215 (C-O); H-NMR (600 MHz, CDCl) δ: 14.19 (s, 1H, OH, C-2′), 7.86 (d, 1H, H-β, J = 15.60 Hz), 7.68 (d, 1H, H-α, J = 15.60 Hz), 7.57 (brs, 1H, H-2), 7.46 (m, 1H, H-5) 7.35 (m, 2H, H-4 and H-6), 6.11 (d, 1H, H-3′, J = 2.34 Hz), 5.97 (d, 1H, H-5′, J = 2.34 Hz), 3.93 (s, 3H, OCH, C-6′), 3.85 (s, 3H, OCH, C-4′); C-NMR (150 MHz, CDCl) δ: 192.26 (C=O), 168.47 (C-2′), 166.46 (C-4′), 162.50 (C-6′), 140.45 (C-β), 137.45 (C-1), 134.83 (C-3), 130.12 (C-2), 129.84 (C-4), 128.86 (C-5), 127.88 (C-6), 126.62 (C-α), 106.26 (C-1′), 93.81 (C-3′), 91.33 (C-5′), 55.95 (OCH), 55.65 (OCH); EI-MS: m/z = 317 (1), 314 (90), 297 (10), 283 (68), 267 (7), 207 (100), 181 (65), 167 (16), 152 (19), 137 (27), 121 (22); (Molecular formula CHClO). (E)-3-(2-Chlorophenyl)-1-(2′-hydroxy-4′,6′-dimethoxyphenyl)prop-2-en-1-one (16).
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