Stereospecificity of shielding constants of carbon-13 nuclei in 13C NMR spectra of oximes of hetarenecarbaldehydes and alkyl heteryl ketones
作者:A. V. Afonin、I. A. Ushakov、D. E. Simonenko、E. Yu. Schmidt、N. V. Zorina、A. V. Ivanov、A. M. Vasil’tsov、A. I. Mikhaleva
DOI:10.1007/s10593-009-0172-3
日期:2008.10
It has been discovered that the chemical shifts of carbon atoms in C-13 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.