“…5-Methoxy-2,3-diphenyl-1H-inden-1-one (4d): 24 orange solid; yield 59% (19 mg); R f = 0.44 (silica gel, hexane/EtOAc 90:10); 1 H NMR (500 MHz, CDCl 3 ) δ 3.85 (s, 3H), 6.69 (dd, J = 7.9, 2.2 Hz, 1H), 6.72 (d,J = 2.2 Hz,1H),5H),2H),3H),7.57 (d,J = 7.9 Hz, 1H); 13 C{ 1 H} NMR (125 MHz, CDCl 3 ) δ 55. 8, 110.3, 110.5, 123.5, 124.9, 127.7, 128.0, 128.5, 128.8, 129.1, 130.0, 130.9, 132.7, 133.9, 147.9, 153.2, 164.4, 195.1; EI-MS m/z 312 (M •+ , 100), 281(30), 268 (27), 252 (17), 239 (54), 135 (33), 120 (22). Anal.…”