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The assignment of the 1H and the 13C NMR chemical shifts of N-phenyl-2,4-dimethylbuta-1,3-diene-1,4-sultam

✍ Scribed by R. Radeglia; E. Fanghänel

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
318 KB
Volume
17
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The assignment of the signals in the ^13^C and ^1^H NMR spectra of N‐phenyl‐2,4‐dimethylbuta‐1,3‐diene‐1,4‐sultam is difficult for the signal pairs C‐2 and C‐4, C‐1 and C‐3, (C‐1)H, (C‐2)CH~3~ and (C‐4)CH~3~. The ^13^C NMR spectrum recorded under gated decoupling conditions provide long‐range couplings which make possible an unambiguous assignment of the ^13^C NMR signal pairs. Application of the ^1^H CW off‐resonance decoupling technique in recording the ^13^C NMR spectra enables the assignment information from the ^13^C NMR spectrum to be transferred to the ^1^H NMR spectrum.

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