Table 21: Summary of 1H NMR spectroscopic data of the 1-(ortho-tolyl)-4-(2-aryl-1-diazenyl)-piperazine series (16).

Series # X Aromatic (8H) CH3 (3H) Ha (4H) Hb (4H) Jab (Hz) X
2-CH3 Ring Aryl Ring
16a p-NO2 7.08 (2H, t, J=6.8),
7.21 (1H, d, J=7.6),
7.25 (1H, d, J=7.5)
7.56 (2H, d, J=9.2),
8.24 (2H, d, J=9.1)
2.41 (s) 3.14 (br) 4.11 (br) --- ---
16b p-Cl 7.05 - 7.08(2H, m),
7.19-7.24(2H, m)
7.33 (2H, d, J=8.7),
7.42 (2H, d, J=8.7)
2.39 (s) 3.10 (t) 3.98 (t) 4.7 ---
16c p-CO2C2H5 7.10 (2H, t, J=8.0),
7.21 (1H, d, J=7.6),
7.25 (1H, d, J=7.4)
7.52 (2H, d, J=8.7),
8.06 (2H, d, J=8.7)
2.43 (s) 3.16 (br) 4.11 (br) --- 1.41 (3H, t, J=7.1),
4.39 (2H, q, J=7.1)
16d p-COCH3 7.08 (2H, d, J=8.6),
7.21(1H, d, J=7.3),
7.25 (1H, d, J=7.3)
7.54 (2H, d, J=8.5),
7.98 (2H, d, J=8.4)
2.41 (s) 3.13 (br) 4.08 (br) --- 2.61 (3H, s)
16e p-CONH2 7.08 (2H, d, J=8.9),
7.21(1H, d, J=7.2),
7.24 (1H, d, J=7.5)
7.54 (2H, d, J=8.4),
7.83 (2H, d, J=8.4)
2.41 (s) 3.13 (br) 4.06 (br) --- 5.69 (1H, br),
6.03 (1H, br)
16f p-OCH3 6.91 (2H, d, 8.9),
7.20 (1H, d, J=7.3),
7.23 (1H, d, J=8.3)
7.04 - 7.06 (2H, m),
7.45 (2H, d, J=8.8)
2.37 (s) 3.08 (t) 3.90 (t) 5.1 3.84 (3H, s)
16g H 6.90 (2H, d, J=7.9),
7.03 (1H, d, J=8.2),
7.10 (1H, d, J=7.2)
6.96 (1H, t, J=7.4),
7.23 (1H, t, J=7.6),
7.26 - 7.30 (3H, m)
2.40 (s) 3.18 (t) 4.46 (t) 5.2 ---