Premium
13 C NMR spectra of 8‐aryl‐8‐azabicyclo[3.2.1]oct‐3‐en‐2‐ones and related compounds
Author(s) -
Katritzky Alan R.,
Dennis Nicholas,
Sabongi Gebran J.
Publication year - 1979
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.1270120606
Subject(s) - spectral line , nmr spectra database , carbon 13 nmr , aryl , carbon 13 nmr satellite , chemistry , chemical shift , proton nmr , nitrogen , stereochemistry , nuclear magnetic resonance spectroscopy , crystallography , fluorine 19 nmr , organic chemistry , physics , alkyl , astronomy
Carbon‐13 NMR spectra of various 8‐aryl‐8‐azabicyclo[3.2.1]oct‐3‐en‐2‐ones and other related compounds, including tropinone, were determined, and the predominant conformation at the bridgehead nitrogen was established. The full assignment of resonances from proton decoupled and coupled spectra was based on the analysis of the splitting pattern and characteristic chemical shifts. The use of the determined 13 C NMR spectra in the assignment of 13 C NMR data in related but more complicated structures is also proposed.