Stereospecificity of shielding constants of carbon-13 nuclei in ¹³C NMR spectra of oximes of hetarenecarbaldehydes and alkyl heteryl ketones

It has been discovered that the chemical shifts of carbon atoms in ¹³C NMR spectra of oximes having pyrrolyl, furyl, benzofuryl, thienyl, and pyridyl rings as substituents are changed systematically on going from the E- to the Z-isomer. This makes it possible to use the indicated chemical shifts for...

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Bibliographic Details
Published in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2008, Vol.44 (10), p.1238-1244
Main Authors: Afonin, A. V, Ushakov, I. A, Simonenko, D. E, Schmidt, E. Yu, Zorina, N. V, Ivanov, A. V, Vasil'tsov, A. M, Mikhaleva, A. I
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Organic Chemistry
Pharmacy
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Summary:It has been discovered that the chemical shifts of carbon atoms in ¹³C NMR spectra of oximes having pyrrolyl, furyl, benzofuryl, thienyl, and pyridyl rings as substituents are changed systematically on going from the E- to the Z-isomer. This makes it possible to use the indicated chemical shifts for establishing the configuration of oximes with heterocyclic substituents and studying the special features of their electronic structure.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-009-0172-3