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Carbon‐13 chemical shift assignment of some N substituted derivatives of ( E )‐hydroxyazastilbenes
Author(s) -
Łapucha Andrzej,
Wyrzykiewicz Elżbieta
Publication year - 1984
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.1270220417
Subject(s) - chemical shift , chemistry , medicinal chemistry , carbon fibers , computational chemistry , spectral line , stereochemistry , mathematics , physics , astronomy , composite number , algorithm
Carbon‐13 NMR spectra of 24 new N ‐carboxyalkyl‐ and N ‐alkoxycarbonylalkylsubstituted derivatives of ( E )‐4‐styrylpyridine and ( E )‐4‐ o ( m ‐ or p )hydroxystyrylpyridine bromides have been calculated and fully assigned. The Ai and AiK empirical parameters of the N ‐carboxyalkyl, N ‐alkoxycarbonylalkyl, N ‐carboxyalkyl‐4‐vinylpyridyl and N ‐alkoxycarbonylalkyl‐4‐vinylpyridyl groups were calculated for the prediction of the chemical shifts of substituted stytylpyridines.