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 7

¹³C NMR data of compounds 10–18—Part A (stilbene carbons); two values given for each carbon atom concern cis and trans conformers.

Compound	C-1	C-2,6	C-3,5	C-4	C-α	C-α′	C-1′	C-2′,6′	C-3′,5′	C-4′
10	133.55	128.71	128.57	139.05	131.21	125.06	129.57	130.05	114.84	157.80
	133.27			136.16		124.75			114.63	157.33
11	133.18	128.73	128.45	136.17	130.29	125.06	129.54	130.06	114.85	157.86
	132.74	128.59		136.10		124.72			114.67	157.34
12	136.18	128.59	128.47	131.32	127.93	125.08	127.66	130.09	114.85	157.83
	136.11			131.23	127.76	124.75			114.69	157.31
13	143.89	127.62	124.47	144.51	131.43	124.66	128.64	129.91	115.13	158.78
				144.42	131.67		128.55	129.73	114.95	158.22
14	144,48	126.15	124.44	145.78	129.15	125.83	128.61	129.83	115.08	158.80
	142.25	126.50	124.05	144.57		125.35	128.52	129.73	114.94	158.23
15	144.49	126.98	124.47	145.78	134.45	124.05	128.87	130.02	115.08	158.96
							128.79	129.69	114.93	158.24
16	144.49	126.92	124.70	145.85	130.03	124.05	128.54	128.60	115.09	158.72
	144.41			145.79		123.68	128.04	128.23	114.91	158.23
17	144.49	126.92	124.39	145.51	132.99	124.04	128.53	129.71	115.09	158.78
				145.55	132.85				114.94	158.23
18	144.29	127.76	126.75	145.60	132.82	124.30	127.93	128.45	114.95	158.52
				145.29	132.66	123.97		128.36	114.81	157.98