NMR spectra of cyclic nitrones. 7. The influence of substituents and a hydrogen bond on 14N and 17O chemical shifts in derivatives of 3-imidoazoline 3-oxide

被引：0

作者：

Grigor'ev I.A. ^{[1
]}

Voinov M.A. ^{[1
]}

Fedotov M.A. ^{[2
]}

机构：

[1] N. I. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences

[2] G. K. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences

来源：

Chemistry of Heterocyclic Compounds | 2005年 / 41卷 / 9期

关键词：

3-imidazoline; 3-oxide; !sup]14[!/sup]N and [!sup]17[!/sup]O NMR spectroscopy; Nitrones;

D O I：

10.1007/s10593-005-0292-3

中图分类号：

学科分类号：

摘要：

Derivatives of 3-imidazoline 3-oxide have been studied by 14N and 17O NMR methods. Regularities of the influence of substituents and of a hydrogen bond on chemical shifts have been made apparent. The range of changes of the chemical shifts of the nitrogen and oxygen nuclei of the nitrone group has been determined. Both in the 17O and in the 14N NMR spectra the signals of the amino derivatives are the highest field signals for the nitrone group, and the lowest field signals are the signals of the cyano derivatives in the series of derivatives investigated. Depending on the substituent (from amino to cyano group) the 17O chemical shifts varied over a range ∼155 ppm, but the interval of change of the 14N chemical shifts for the same substituents was ∼110 ppm. ©2005 Springer Science+Business Media, Inc.

引用

页码：1134 / 1138

页数：4

共 21 条

[1]

Reznikov V.A., Volodarskii L.B., Khim. Geterotsikl. Soedin., (1991)

[2]

Kintzinger J.-P., Oxygen NMR, Characteristic Parameters and Application, NMR: Basic Principles and Progress, 17, (1981)

[3]

Witanowski M., Stefaniak L., Januszewski H., Nitrogen NMR, (1973)

[4]

Martin G.J., Martin M.L., Gouesnard J.-P., NMR: Basic Principles and Progress, 18, (1981)

[5]

Boykin D.W., Baumstark A.L., Balakrishnan P., Magn. Res. Chem., 23, (1985)

[6]

Woyciesje P.M., Janes N., Ganapathy S., Hiyama Y., Brown T.L., Oldfield E., Magn. Res. Chem., 23, (1985)

[7]

Boykin D.W., Balakrishnan P., Baumstark A.L., J. Heterocycl. Chem., 22, (1985)

[8]

Stefaniak L., Spectrochim. Acta, A32, (1976)

[9]

Yavari I., Roberts J.D., Org. Magn. Res., 12, (1979)

[10]

Paudler W.W., Javanovic M.V., Heterocycles, 19, (1982)

← 1 2 3 →