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Nitramino, NRNO 2 (R = H, CH 3 ), as a substituent. 13 C and 15 N NMR spectroscopic study of nitraminobenzenes and ‐pyridines
Author(s) -
Kolehmainen Erkki,
Laihia Katri,
Kauppinen Reijo,
Gawinecki Ryszard,
Rasala Danuta
Publication year - 1993
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.1260310711
Subject(s) - chemistry , substituent , chemical shift , nmr spectra database , aryl , coupling constant , carbon 13 nmr satellite , nuclear magnetic resonance spectroscopy , spectral line , carbon 13 nmr , phosphorus 31 nmr spectroscopy , fluorine 19 nmr , crystallography , stereochemistry , analytical chemistry (journal) , organic chemistry , physics , alkyl , particle physics , astronomy
Abstract In order to clarify the special properties of the aryl‐bound nitramino substituent NRNO 2 (R = H, CH 3 ), 13 C and 15 N NMR spectra of six nitraminobenzenes and nine nitraminopyridines were measured in DMSO‐ d 6 and their chemical shifts assigned. 1 H NMR chemical shifts and spin‐spin coupling constants of all the compounds were also determined. In contrast to the behaviour of nitropyridines or ‐benzenes studied previously, most of the present compounds gave very broad 17 O NMR lines even at elevated temperatures and their 17 O NMR data were not useful for any reliable conclusions.