1H NMR (400 MHz, CDCl3) δ 7.35 – 7.15 (m, 5H), 5.27 (d, J = 61.7 Hz, 2H), 2.67 (s, 2H), 1.16 (s, 6H). 13C{1H} NMR (101 MHz, CDCl3) δ 143.87, 141.51, 128.37, 127.71, 126.39, 124.55, 118.45, 45.35, 33.03, 26.96. GC-MS (m/z) = 185.