1H NMR (400 MHz, CDCl3) δ 7.95 (d, J = 13.7 Hz, 1H), 7.58 (t, J = 10.4 Hz, 3H), 7.42 (d, J = 8.5 Hz, 2H). 13C{1H}NMR (101 MHz, CDCl3) δ 137.75, 137.47, 132.74, 130.36, 128.94, 126.78. GC-MS (m/z): 228.