Synthesis and Conformational Assignment of N-(E)-Stilbenyloxymethylenecarbonyl-Substituted Hydrazones of Acetone and o-(m- and p-) Chloro- (nitro-) benzaldehydes by Means of ¹H and ¹³C NMR Spectroscopy

Table 3

¹H NMR data for compounds 1–9 (δ, ppm).

Compund	–OCH2–; s, cis; s, trans	–NH–; s, cis; s, trans	N=CH; s, cis; s, trans	Ar*; m
1	5.20; 4.72	11.87; 11.82	8.41; 8.77	8.06–6.95
2	5.20; 4.72	11.74; —	8.09; 8.33	7.82–6.94
3	5.18; 4.71	11.69; 11.67	8.02; 8.34	7.77–6.94
4	5.17; 4.73	11.92; 11.91	8.39; 8.75	8.16–6.95
5	5.23; 4.75	11.88; —	8.15; 8.53	8.27–6.95
6	5.23; 4.75	12.40; 11.93	8.29; 8.31	8.36–6.87
7	5.20; 4.72	11.87; 11.81	8.41; 8.76	8.37–6.72
8	5.20; 4.71	11.73; —	8.00; 8.33	7.81–6.95
9	5.18; 4.71	11.71	8.02; 8.34	7.77–6.82

*Aromatic ring protons.