“…Method A; Yield 95%; Mp. 196 °C (183 °C [56], 190–193 °C [60], 187–189 °C [61]; R f = 0.69; IR (Zn/Se ATR, cm − 1 ): 3227 m , 3180 w , 3111 w , 3031 w , 2909 w , 1651 s , 1598 s , 1532 s , 1514 s , 1404 m , 1322 s , 1301 m , 1257 m , 817 m , 805 s , 778 s , 747 s , 730 m ; 1 H-NMR (DMSO- d 6 ) [58,59], δ: 10.51 (s, 1H), 8.21–8.16 (m, 1H), 8.07 (d, J = 8.4 Hz, 1H), 8.05–8.00 (m, 1H), 7.74 (dd, J = 7.0 Hz, J = 1.1 Hz, 1H), 7.71 (d, J = 8.1 Hz, 2H), 7.64–7.55 (m, 3H), 7.18 (d, J = 8.4 Hz, 2H), 2.30 (s, 3H); 13 C-NMR (DMSO- d 6 ), δ: 166.97, 136.70, 134.83, 133.06, 132.53, 129.83, 129.61, 128.93, 128.16, 126.78, 126.17, 125.20, 125.03, 124.88, 119.81, 20.35; HR-MS: for C 18 H 16 NO [M+H] + calculated 262.1226 m/z , found 262.1232 m/z .…”