Premium
13 C and 1 H NMR investigation of the structure of N ″‐sulphonyl‐ N ‐alkylideneformamidrazones
Author(s) -
Jakobsen P.,
Treppendahl S.
Publication year - 1980
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270140211
Subject(s) - tautomer , carbon 13 nmr , nmr spectra database , chemical shift , rotation (mathematics) , chemistry , solvent , spectral line , crystallography , stereochemistry , organic chemistry , physics , mathematics , geometry , astronomy
The 13 C and 1 H NMR spectra of N ″‐sulphonyl‐ N ‐alkylideneformamidrazones have been recorded and the chemical shifts assigned. The tautomeric structure proved to be an N 2 ‐ alkylidenehydrazide sulphonylimide. The barrier to rotation around the CN 1 bond was estimated from variable from temperature 1 H NMR measurements, and the Z / E ratio and its solvent dependence was investigated.