Journal of Spectroscopy

Research Article

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

Table 1

Chemical and physical data of compounds 1–18.


Compound	Formula Mol. weight	Yield [%]	M.p. [°C]	(TLC)	Elemental analyses Calculated (found)
					C	H	N

1	C₂₃H₁₉N₂O₂Cl 390.60	75	194–5	0.48	70.70	4.87	7.18
					(70.59)	(4.91)	(7.09)
2	C₂₃H₁₉N₂O₂Cl·1/2H₂O 399.60	53	191–3	0.52	70.01	4.87	7.04
					(70.08)	(4.80)	(7.05)
3	C₂₃H₁₉N₂O₂Cl·2H₂O 426.64	49	207–9	0.64	64.78	4.46	6.57
					(64.94)	(4.40)	(6.50)
4	C₂₃H₁₉N₃O₄ 401.14	61	188–190	0.76	68.30	4.74	10.47
					(68.49)	(4.85)	(10.32)
5	C₂₃H₁₉N₃O₄·1/2H₂O 410.66	43	232–4	0.60	67.32	4.88	10.24
					(67.59)	(5.07)	(10.15)
6	C₂₃H₁₉N₃O₄·H₂O 419.11	64	192–5	0.42	65.89	5.01	10.02
					(65.56)	(4.93)	(9.96)
7	C₂₃H₁₈N₂O₂Cl₂·1/2H₂O 434.31	41	190–2	0.58	63.74	4.39	6.47
					(63.87)	(4.40)	(6.54)
8	C₂₃H₁₈N₂O₂Cl₂ 425.31	45	238–240	0.31	64.95	4.27	6.59
					(64.96)	(4.26)	(6.57)
9	C₂₃H₁₈N₂O₂Cl₂ 425.31	62	208–10	0.43	64.95	4.27	6.59
					(64.87)	(4.35)	(6.38)
10	C₂₃H₁₈N₃O₄Cl·1H₂O 453.88	49	190–2	0.65	60.86	4.44	9.26
					(61.08)	(4.73)	(9.17)
11	C₂₃H₁₈N₃O₄Cl·1/2H₂O 444.63	56	201–4	0.53	62.13	4.31	9.45
					(62.58)	(4.65)	(9.18)
12	C₂₃H₁₈N₃O₄Cl·1.5H₂O 462.56	39	215–17	0.43	59.74	4.55	9.09
					(60.14)	(4.83)	(9.31)
13	C₂₃H₁₈N₃O₄Cl·1/2H₂O 444.63	35	209–11	0.55	62.16	4.27	9.45
					(62.48)	(4.13)	(9.60)
14	C₂₃H₁₈N₃O₄Cl·1/2H₂O 444.63	67	260–2	0.7	62.16	4.27	9.45
					(62.36)	(4.47)	(9.48)
15	C₂₃H₁₈N₃O₄Cl·1/2H₂O 444.63	66	208–10	0.43	62.16	4.27	9.45
					(62.02)	(4.16)	(9.60)
16	C₂₃H₁₈N₄O₆ 446.41	53	228–31	0.69	61.88	4.06	12.55
					(61.63)	(4.21)	(12.58)
17	C₂₃H₁₈N₄O6·1/2H₂O 455.41	65	263–5	0.38	60.66	4.17	12.30
					(60.94)	(4.22)	(12.20)
18	C₂₃H₁₈N₄O6·2.5H₂O 491.43	73	245–8	0.10	56.21	4.72	11.40
					(56.18)	(4.71)	(11.16)