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N ‐methylene chemical shifts of N ‐benzylpyridinium salts
Author(s) -
Munavalli S.,
Hsu F.L.,
Szafraniec L. L.,
Beaudry W. T.,
Poziomek E. J.
Publication year - 1987
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.1260250622
Subject(s) - chemistry , methylene , chemical shift , substituent , resonance (particle physics) , computational chemistry , additive function , stereochemistry , medicinal chemistry , atomic physics , mathematical analysis , physics , mathematics
The chemical shifts of N‐benzylpyridinium salts have been measured in D 2 O, and the substituent induced chemical shifts of the methylene protons are in substantial agreement with those expected from the overall electronic effects of the substituents. An additivity effect of the substituents on the methylene resonance is also observed.