“…: 54–56 °C (lit. 57–58 °C); 1 H NMR (400 MHz, CDCl 3 ) δ =3.81 (s, 3 H), 6.69–6.71 (m, 1 H), 6.93 (d, J =8.8 Hz, 2 H), 6.99–7.02 (m, 2 H), 7.29–7.31 (m, 1 H), 7.44 ppm (d, J =8.8 Hz, 2 H); 13 C NMR (100 MHz, CDCl 3 ) δ =55.3, 115.3, 121.4, 125.9, 127.0, 127.3, 129.3, 130.8, 136.8, 138.7, 160.4 ppm; HRMS (EI) m / z calcd for C 13 H 11 ClOS (M) + 250.0219, found: 250.0217.…”