Analysis of the long-range effect of the nitrogen unshared pair on the direct13C-1H coupling constants in the vinyl group of N-vinylazoles

Autor: Afonin, A. V., Danovich, D. K., Voronov, V. K., Es'kova, L. A., Baikalova, L. V., Buzilova, S. R.
Zdroj: Russian Chemical Bulletin; April 1988, Vol. 37 Issue: 4 p752-755, 4p
Abstrakt: Conclusions A long-range effect of the nitrogen unshared pair on the direct13C-1H coupling constants is seen in the case of approximation of the corresponding proton and heteroatom to a distance on the order of their Van der Waals radii. The magnitude of this effect decreases with increasing averaged ionization potential of the nitrogen unshared electron pair.
Databáze: Supplemental Index
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