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Dynamic NMR study of hindered rotation around the CN bond in thiopiperidides
Author(s) -
Ciureanu Mariana,
Sahini Victor E.,
Cornea Felicia,
Cercasov Cornelia,
Contineanu Mihai
Publication year - 1981
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.1270150207
Subject(s) - substituent , ring (chemistry) , rotation (mathematics) , internal rotation , character (mathematics) , carbon 13 nmr , chemistry , crystallography , materials science , computational chemistry , stereochemistry , mathematics , organic chemistry , engineering , geometry , mechanical engineering
The barriers to internal rotation about the CN bond in several thiopiperidides have been determined by the NMR technique. It was found that the barrier height (Δ G T c‡ ) increases in the series cinnamoylthiopiperidide
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