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Proton and carbon‐13 nuclear magnetic resonance studies of substituted pyridines and pyrimidines: VII—The structure of hydroxy‐ and mercapto‐ pyridines and pyrimides from J (HH) and J (CH) values
Author(s) -
Vitorge M. C.,
Che M. T.,
Coupry C.,
LumbrosoBader N.
Publication year - 1983
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/omr.1270210106
Subject(s) - chemistry , proton , proton magnetic resonance , methylation , computational chemistry , nuclear magnetic resonance , physics , nuclear physics , biochemistry , gene
Accurate values of i J (HH) and i J (CH) were obtained for a series of hydroxy‐and mercaptopyridines and‐pyrimidines. It is shown that the 3 J (CH) values provide a valuable criterion for differentiating aromatic from quinoidal structures, and is an easy method for determining N ‐methylation or N ‐addition sites.