13 C and  1 H NMR investigation of the structure of  N ″‐sulphonyl‐ N ‐alkylideneformamidrazones | Zendy

Jakobsen P. | Zendy; Treppendahl S. | Zendy

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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.

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