Table 1:
Spectral data of resveratrol analogs.
Compounds
C
H
=N
δ
C
=N
C=N
Melting point (°C)
Yield (%)
A
8.90
157.18
1625.8
160.0–161.0
78.0
B
8.62
158.46
1622.0
90.1–92.0
66.0
C
8.96
160.77
1631.6
149.0–150.3
90.0
D
8.50
158.84
1614.3
118.0–119.0
50.0
E
8.69
159.73
1625.8
90.8–91.5
83.0
F
8.63
158.87
1623.9
118.7–119.6
72.0
*The NMR experiments were performed at 300 MHz for
1
H and 75 MHz for
13
C in dimethyl sulfoxide (DMSO-
) (ppm) and I.R. experiments were performed at KBr support (cm
−1
).