1H NMR (400 MHz, CDCl3) δ 7.40 – 7.36 (m, 3H), 7.20 – 7.12 (m, 2H), 7.08 (d, J = 4.4 Hz, 3H), 6.97 (s, 1H), 6.87 – 6.79 (m, 2H), 1.55 (s, 6H). 13C{1H} NMR (101 MHz, CDCl3) δ 141.10, 136.53, 135.66, 130.12, 129.26, 128.73, 128.43, 127.94, 127.26, 126.16, 124.13, 39.32, 27.18. GC-MS (m/z) = 247.