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Chemistry of the phenoxathiins and isosterically related heterocycles. XIV. Total assignment of the 13 C‐Nmr spectrum of pyrrolo[3,2,1‐ kl ]phenothiazine
Author(s) -
Gampe Robert T.,
Martin Gary E.,
Pinto Angelo C.,
Hollins Richard A.
Publication year - 1981
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.5570180129
Subject(s) - chemistry , phenothiazine , ring (chemistry) , molecule , stereochemistry , crystallography , computational chemistry , organic chemistry , medicine , pharmacology
Total assignment of the 13 C‐nmr spectrum of the novel tetracyclic phenothiazine, pyrrolo[3,2,1‐ kl ]phenothiazine is described. Assignments were determined from model systems, 1 H‐ 13 C spin‐coupling behavior in conjunction with selective excitation techniques and spin‐lattice (T 1 ) relaxation measurements. The anisotropic reorientation of this ring system via a principal axis passing through the center of the molecule, which provides a qualitative basis for signal discrimination, is also discussed.