5-(4-Chlorophenyl)-N-phenyl-6H-1,3,4-thiadiazin-2-amine—IJ 27 Yellow solid; yield 60%; mp 179–180 °C; HPLC-UV: 3.27 min.; purity of 99%; 1H NMR (600 MHz, DMSO-d6) δ 3.74 (s, 2H, CH2); 7.06 (dd, 2H, J = 1.18 and 8.62 Hz, H-Ar); 7.18 (tt, 1H, J = 1.18 and 7.46 Hz, H-Ar); 7.37 (dtq, 2H, J = 1.95, 8.62 and 0.76 Hz, H-Ar); 7.43 (dt, 2H, J = 2.58 and 8.70 Hz, H-Ar); 7.71 (dt, 2H, J = 2.58 and 8.70 Hz, H-Ar); 13C NMR (150 MHz, DMSO-d6) δ 153.4; 145.9; 145.5; 136.1; 133.0; 129.1; 129.0; 127.4; 124.7; 122.4; 23.2.

IJ 27