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13 C NMR study of substituted 10,10‐diphenyl‐9‐phenanthrones. Structure determination and signal assignment using 2D NMR techniques
Author(s) -
Mynott R.,
Romão Maria J.,
Herold B. J.
Publication year - 1989
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260271205
Subject(s) - chemistry , carbon 13 nmr satellite , nmr spectra database , carbon 13 nmr , spectral line , proton nmr , fluorine 19 nmr , nuclear magnetic resonance spectroscopy , transverse relaxation optimized spectroscopy , deuterium nmr , crystallography , stereochemistry , physics , astronomy
The 13 C NMR spectrum of 10,10‐diphenyl‐9‐phenanthrone was assigned unambiguously using 2D 13 C, 1 H shift correlated NMR spectra, optimized either for one‐bond or long‐range 13 C 1 H couplings, and 2D RELAY NMR spectra. This information allowed the structures of a number of substituted 10,10‐diphenyl‐9‐phenanthrones to be deduced from their 13 C NMR spectra. The results provide an insight into the mechanism of the reaction of 9‐fluorenone with chlorodiphenylmethyllithium.

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