1H NMR (400 MHz, CDCl3) δ 7.57 (s, 1H), 7.36 (d, J = 7.9 Hz, 2H), 7.16 (t, J = 7.8 Hz, 1H), 6.91 (s, 1H), 2.51 (s, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 143.49, 139.25, 130.74 (s), 130.51 (s), 129.74 (s), 126.73 (s), 122.30 (s), 94.21 (s), 16.67. GC-MS (m/z) = 356.