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Determination of three-bond 1H,1H coupling constants between the olefinic protons in cycloalkenes by means of 1H CW off-resonance 13C NMR spectroscopy

✍ Scribed by Reiner Radeglia; Helmut Poleschner; Günter Haufe

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
235 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^1^H CW off‐resonance decoupled ^13^C NMR spectra of (E)‐ and (Z)‐cycloalkenes (C~5~C~12~) were measured. The higher order ^13^C NMR multiplets obtained for the unsaturated carbons allow the determination of the vicinal ^1^H,^1^H coupling constant between the vinylic protons and thus the assignment of the configuration of the CH~2~CHCHCH~2~ fragment.

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