1H NMR (400 MHz, CDCl3) δ 7.35 (t, J = 5.7 Hz, 1H), 5.57 (s, 2H), 3.03 (t, J = 6.3 Hz, 2H), 2.68 – 2.55 (m, 2H), 2.55 – 2.42 (m, 4H). 13C{1H} NMR (101 MHz, CDCl3) δ 151.52, 135.18, 128.62, 127.64, 27.04, 26.66, 26.29, 25.63. GC-MS (m/z): 153.