1H NMR (400 MHz, CDCl3) δ 7.50 – 7.48 (m, 2H), 7.38 -7.33 (m, 4H), 7.30 – 7.24 (m, 4H), 6.59 (s, 1H), 4.17 (m, 1H), 1.39 (d, J = 6.1 Hz, 6H). 13C NMR (101 MHz, CDCl3) δ 144.21, 141.04, 137.93, 129.80, 128.52, 128.17, 127.76, 126.23, 126.16, 119.97, 75.67, 22.54. GC-MS (m/z): 238。
