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Complete assignment of the 1 h‐ and 13 c‐nmr spectra of [1]benzothieno[2,3‐ c ]naphtho[1,2‐ h ]quinoline and [1]benzothieno[2,3‐ c ]naphtho[1,2‐ h ][1,2,4]triazolo[4,3‐ a ]quinoline. Concerted use of two‐dimensional nmr techniques
Author(s) -
Sasaki Kenji,
Castle Lyle W.,
Castle Raymond N.
Publication year - 1994
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.5570310112
Subject(s) - chemistry , quinoline , heteronuclear molecule , spectral line , nmr spectra database , proton , resonance (particle physics) , two dimensional nuclear magnetic resonance spectroscopy , carbon 13 nmr satellite , carbon 13 nmr , nuclear magnetic resonance spectroscopy , stereochemistry , crystallography , fluorine 19 nmr , atomic physics , organic chemistry , physics , nuclear physics , astronomy
The 1 H‐ and 13 C‐nmr spectra of [1]benzothieno[2,3‐ c ]naphtho[1,2‐ h ]quinoline and [1]benzothieno[2,3‐ c ]‐naphtho[1,2‐ h ][1,2,4]triazolo[4,3‐ a ]quinoline were totally assigned using a combination of two‐dimensional nmr techniques. After correlation of the proton signals by a COSY spectrum and one‐bond heteronuclear correlation, complete assignment of the 1 H‐ and 13 C‐nmr spectra of the novel heterocyclic compounds required the application of long‐range CH coupling information particularly for quarternary resonance assignments and the orientations of individual spin systems relative to one another.