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Carbon‐13 NMR spectra of heterocycles. Sultones and sultams.
Author(s) -
Kausch M.,
Dürr H.,
Doss S. H.
Publication year - 1977
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.1270100146
Subject(s) - chemistry , carbon 13 nmr , spectral line , diene , nmr spectra database , chemical shift , stereochemistry , organic chemistry , physics , natural rubber , astronomy
The 13 C NMR spectra of 1,3‐propanesultam, 2,4‐butanesultam, 1,4‐butanesultam, 1,3‐propanesultone and 1,4‐butanesultone, as well as some of their unsaturated analogs 2,4‐dimethylbuta‐1,3‐diene‐1,4‐sultone and 2,4‐dimethylbuta‐1,3‐diene‐1,4‐sultam, have been recorded. The observed chemical shift data for the sultams and sultones can be explained mainly on the basis of inductive effects. The δ values of the dienesultone and the dienesultam are mainly affected by M‐effects. 1 H NMR as well as mass spectra have.