“…1, 136.0, 132.6, 128.3, 125.8, 124.3, 124.2, 122.8, 122.7, 68.9, 21.8;IR (KBr): 2921, 2854, 1713, 1270, 1103 Isopropyl (E)-2,3-Diphenylacrylate (3m). 21 26.0 mg, 50% yield, colorless oil; R f = 0.2 (petroleum ether); 1 H NMR (500 MHz, CDCl 3 ) δ: 7.79 (s, 1H), 7.32−7.34 (m, 3H), 7.12−7.22 (m, 5H), 7.03−7.05 (m, 2H), 5.10−5.17 (m, 1H), 1.27 (d, J = 6.5 Hz, 6H); 13 C{ 1 H} NMR (126 MHz, CDCl 3 ) δ: 167. 3, 139.9, 136.0, 134.8, 133.3, 130.5, 129.9, 128.8, 128.5, 128.2, 127.7, 68.6, 21.9; IR (KBr): 2975, 1702, 1247, 1100, 756 cm −1 ; HRMS (APCI, m/z): + H, 267.1380; found, 267.1372.…”