Table 4.
Spectral data of compounds
| Compound code | UV λ-max (cm) | IR KBr (cm-1) | Mass m/z (abundance) | H1NMR (CDCl3) signals, δ, multiplicity,Jvalue (Hz) |
|---|---|---|---|---|
|
P1A |
283.0 |
3055.03 (−NH–CO–), |
– |
– |
| |
|
800–400(Ar–Cl), |
|
|
| |
|
1481.23(Cyclic Ester), |
|
|
| |
|
1600–1400 (C = C) |
|
|
| |
|
1782.10 (C = O) |
|
|
|
P2A |
282.0 |
3051.18 (=N–CO–), |
259(M–), |
7.1 (s, 5H, Ar–H), |
| |
|
800–400(Ar–Cl), |
168(91), |
4.2 (s, 2H, –CH2–), |
| |
|
1481.23(Cyclic Ester), |
223(35), |
7.1, 7.0 (m, 2 H, –3CH– |
| |
|
1600–1400 (C = C) |
186(73), |
4CH–), |
| |
|
713.0 & 694.33 (Mono Substituted benzene ring) |
113(164) |
7.3, 7.2 (m, 1 H, –6CH) |
| |
|
1774.39 (C = O) |
|
|
|
P2B |
282.5 |
3055.03 (−NH–CO–), |
326(M–), |
– |
| |
|
800–400(Ar–Cl), |
168(158), |
|
| |
|
1620.09–1778.25 (1,2,4-trisubstituted benzene ring), |
292.9(35), |
|
| |
|
1477.37(Cyclic Ester), |
258.9(70), |
|
| |
|
1600–1450 (C = C), |
218(105), |
|
| |
|
3050–3010 (−C–H str.), |
181(146), |
|
| |
|
1778.25 (C = O) |
159(167) |
|
|
P3A |
282.0 |
3039.09 (=N–CO–), |
– |
– |
| |
|
713.1 & 698.18 (Mono substituted benzene ring), |
|
|
| |
|
1481.23(Cyclic Ester), |
|
|
| |
|
1600–1400 (C = C), |
|
|
| |
|
3050–3010 (−C–H str), |
|
|
| |
|
1782.10 (C = O) |
|
|
|
P3B |
282.0 |
3055.03 (−NH–CO–), |
– |
– |
| |
|
1485.09(Cyclic Ester), |
|
|
| |
|
1600–1450 (C = C), |
|
|
| |
|
3050–3010 (−C–H str), |
|
|
| |
|
1782.10 (C = O) |
|
|
|
P4A |
282.0 |
3058.89 (=N–CO–), |
292(M–), |
7.02 (s, 5 H, Ar–H), |
| |
|
1485.09(Cyclic Ester), |
168(106), |
4.02 (s, 2 H, –CH2–), |
| |
|
1600–1450 (C = C), |
224(68), |
7.8 (s, 1 H, 6CH), |
| |
|
713.61 & 690.47 (Mono substituted benzene ring), |
201(91), |
7.36, 7.35 (m, 2 H, –3CH–4CH–), |
| |
|
3050–3010 (−C–H str), |
133(159) |
7.1, 7.0 (d, 2 H, –CH = CH– in triazole) |
| |
|
1762.82 (C = O) |
|
|
|
P4B |
282.0 |
3055.03 (−NH–CO–), |
202(M–), |
|
| |
|
1481.23(Cyclic Ester), |
168(34), |
|
| |
|
1600–1400 (C = C), |
134(68) |
|
| |
|
3050–3010 (−C–H str), |
|
|
| |
|
1782.10 (C = O) |
|
|
|
P5A |
281.0 & 218.0 |
1261.36 & 1149.50 (−SO2NH–), |
395(M-), |
– |
| |
|
3055.03 (=N–CO–), |
167.9(227), |
|
| |
|
1620.09 (−NH2), |
224(171) |
|
| |
|
1299.93 & 1149.50 (−S = O), |
304(91) |
|
| |
|
1477.37(Cyclic Ester), |
133(262) |
|
| |
|
1782.10 (C = O) |
|
|
|
P6A |
282.0 & 219.0 |
1782.10 (−COOH) |
360(M–), |
7.02 (s, 5 H, Ar–H), |
| |
|
3058.89 (=N–CO–), |
310.8(49), |
7.01,7.00 (d, 4 H, CH in PABA), |
| |
|
713.60 & 694.33 (Mono substituted benzene ring), |
168(192), |
5.01 (s, 1 H, NH), |
| |
|
1481.23(Cyclic Ester), |
223.9(136), |
11.51 (s, 1 H, –COOH), |
| |
|
1600–1400 (C = C) |
132(227) |
4.3 (s, 2 H, –CH2–), |
| |
|
1616.24 (C = O) |
|
7.24, 7.22 (m, 1 H, 6CH), |
| 7.76,7.74 (m, 2 H, –3CH–4CH–) |