1H NMR (400 MHz, CDCl3) δ 7.98 (d, J = 13.7 Hz, 1H), 7.55 (t, J = 12.0 Hz, 3H), 7.15 (t, J = 8.0 Hz, 2H). 13C{1H}NMR (101 MHz, CDCl3) δ 164.92, 137.81, 136.83, 131.26 (d, J = 8.9 Hz), 126.29 (d, J = 3.6 Hz), 116.78 (d, J = 22.2 Hz). GC-MS (m/z): 167.