5-(4-Methoxyphenyl)-N-phenyl-6H-1,3,4-thiadiazin-2-amine IJ26 Yellow solid; yield 56%; mp 187–188 °C; HPLC-UV: 3.07 min.; purity of 99%; 1H NMR (600 MHz, DMSO-d6) δ 3.85 (s, 3H, OCH3); 4.30 (s, 2H, CH2); 7.12 (dt, 2H, J = 3.10 and 8.95 Hz, H-Ar); 7.34 (t, 1H, J = 7.38 Hz, H-Ar); 7.45–7.50 (m, 4H, H-Ar); 7.92 (dt, 2H, J = 3.10 and 8.95 Hz, H-Ar); 13C NMR (150 MHz, DMSO-d6) δ 162.2; 154.4; 151.5; 137.7; 129.4; 129.2; 126.7; 123.9; 123.3; 114.5; 114.1; 55.5; 22.7.

IJ26