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Chemistry of the phenoxathiins and isosterically related heterocycles. XI . The synthesis and 13 C‐NMR spectroscopy of 2‐azaphenoxathiin
Author(s) -
Caldwell Steven R.,
Martin Gary E.
Publication year - 1980
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570170528
Subject(s) - chemistry , heteronuclear molecule , chemical shift , nuclear magnetic resonance spectroscopy , ring (chemistry) , spectroscopy , carbon 13 nmr satellite , fluorine 19 nmr , computational chemistry , stereochemistry , organic chemistry , physics , quantum mechanics
The synthesis of the 2‐azaphenoxathiin ring system via the intermediary 2‐azaphenoxathiin 2‐oxide is described. Complete assignment of the 13 C‐nmr spectrum is reported, based on the observed heteronuclear 1 H‐ 13 C spin‐couplings of the system and calculated chemical shifts as assignment criteria. The possible relation of the chemical shift of Cα to the dehidral angle of the system is also discussed.