... 2 157 -2163 1 15 Chapter 13 C NMR (50 0 MHz, CDCl3, ppm) δ 25. 5, 25. 6, 25. 7, 29.1, 29.2, 45. 5, 73.1, 121.2, 122 .5, 1 25. 8, 129.3, 132 .5, 144.1, 147.4, 206.3; IR (film, cm-1) 3413, 1020, 2934, 153 2; ... 1H, J = 5. 8 Hz), 5. 62 (d, 1H, J = 5. 8 Hz), 5. 99 (s, 1H), 6.22 (s, 1H), 7 .53 (d, 2H, J = 8.7 Hz), 8.18 (d, 2H, J = 8.7 Hz); 13C NMR (300 MHz, CDCl3, ppm) δ 25. 5, 25. 6, 25. 7, 29.1, 29.2, 45. 5, 73.2, ... J = 8.1 Hz); 13C NMR ( 75 MHz, CDCl3, ppm) δ 21.4, 24.1, 25. 5, 26.7, 34.3, 54 .7, 59 .4, 59 .7, 127.0, 129.1, 139 .5, 142.4; IR (film, cm-1) 33 95, 2940, 1600, 14 75, 1316, 1 155 , 1094; LRMS (ESI) m/z...