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Stereochemistry of the B/C ring junction in 3‐benzylidenebenzo[ a ] quinolizidines
Author(s) -
Hajpál I.,
Scheiber P.,
Nádor K.
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.1260250805
Subject(s) - chemistry , stereochemistry , ring (chemistry) , bicyclic molecule , organic chemistry
A trans B/C ring junction has been found to exist in 3‐benzylidinebenzo[ a ]quinolizidines. 1 H NMR analysis of partially deuteriated compounds showed that the signals at 4.0‐4.2 ppm should be assigned to the H‐4‐ exo proton.