| | Compound | 1H | 13C | IR
ν (cm−1) | UV/Vis
(nm),
(M−1 cm−1) | m.p.
(°C) |
| | 1 | 6.87 (s, 2H, CHm); 5.42 (b.s., 2H, NH2); 2.37 (s, 6H, CH3, Aro); 2.24 (s, 3H, CH3, Arp); 1.63 (OCH3) | 190.9 (C=O); 138.6 (CAr-NH2); 130.0 (Cq); 129.0 (CH, Arm); 125.4 (Cq); 20.6 (CH3, Arp); 17.6 (CH3, Aro); 23.7 (OCH3) | 3372, 3308
(H2N-Ar) | 283,
36786 | 301 |
| | 2 | 7.17 (d, 2H, CH, = 7.1 Hz); 7.05 (t, 1H, CH, = 7.0 Hz); 5.90 (b.s., 2H, NH2)
3.48 (sept, 2H, CH(CH3)2, = 3.4 Hz); 1.80 (OCH3); 1.31 (d, 12H, CH3, = 3.4 Hz) | 190.6 (C=O); 138.2 (CAr-NH2); 136.6 (CAr-iPr); 126.0 (CHm); 121.7 (CHp); 27.0 (CH(CH3)2); 23.2 (CH(CH3)2); 23.6 (OCH3) | 3402, 3334
(H2N-Ar) | 274,
20331 | 304 |
| | 3 | 7.69 (d, 1H, CHb, = 7.6 Hz); 7.08 (d, 1H, CHf, = 7.0 Hz); 6.88 (m, 1H, CHe, = 6.8 Hz) 6.77 (d, H, CHc, = 6.7 Hz); 6.29 (d, H, CHa, = 6.2 Hz); 4.27 (b.s., 2H, NH2); 1.76 (OCH3) | 208.7 (O-C=O); 192.1 (C=O); 147.5 (Cq, CAr); 145.8 (Cq-NH2); 141.7 (, CH); 122.3 (Cf, CH); 120.0 (Cq, CAr); 116.6 (, CH); 116.5 (, CH); 23.5 (OCH3) | 3346, 3275
(H2N-Ar) | 298,
36785 | 307 |
| | 4 | 7.86 (d, 1H, CHb, = 7.87 Hz); 7.61 (d, 1H, CHc, Ar, = 7.61 Hz); 7.34 (t, 1H, CHe, Ar, = 7.32 Hz); 7.32 (m, H, CHe, = 6.88 Hz); 6.39 (d, 1H, CHa, = 6.39 Hz); 1.79 (OCH3) | 205.5 (O-C=O); 190.6 (C=O); 153.0 (Cq); 149.0 (Cb, CH); 137.1 (Cf, CH); 133.5 (Ce, CH); 129.8 (Cc, CH); 129.6 (Cd, CH); 126.4 (Cq); 121.7 (Ca, CH); 21.6 (OCH3) | 1669, 1590
(C=O) | 370,
119602 | 300 |
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