Abstract: C-13, N-14 and Li-7 NMR spectra of a lithiation product of the cyclic aldonitrone 1,2,2,5,5-pentamethyl-3-imidazoline 3-oxide were obtained. The C-13 NMR spectrum of the lithiated particle exhibits the resonances of the C-4 and C-5 atoms (delta 213 ppm and 73 ppm, respectively) shifted to high frequency relative to the signals of the corresponding nuclei of the starting nitrone (deltaC-4 132 ppm. and deltaC-5 60 ppm). The N-14 NMR spectrum of the particle shows the resonance of the N-3 atom (-115 ppm) at lower frequency in comparison with -74 ppm for the starting nitrone. The calculated chemical shift changes are in good agreement with those observed experimentally. The electronic structure of the lithiated particle is discussed. Copyright (C) 2001 John Wiley & Sons, Ltd.

Cite: Voinov M. , Salnikov G. , Genaev A. , Mamatyuk V. , Shakirov M. , Grigor'ev I.
Dipole-stabilized carbanions in series of cyclic aldonitrones: Part 4. C-13, N-14 and Li-7 NMR spectra of dipole-stabilized organolithiums derived from a cyclic aldonitrone
Magnetic Resonance in Chemistry. 2001. V.39. N11. P.681-683. DOI: 10.1002/mrc.906 WOS Scopus РИНЦ

Dates:

Published print:

Nov 1, 2001

Identifiers:

Web of science	WOS:000171940300003
Scopus	2-s2.0-0006347542
Elibrary	13386014
OpenAlex	W2022331727

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