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1 H and 13 C NMR studies of some germacrones and isogermacrones
Author(s) -
Simova S. D.,
Bozhkova N. V.,
Orahovats A. S.
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.1270220707
Subject(s) - cis–trans isomerism , chemistry , stereochemistry , nmr spectra database , spectral line , physics , astronomy
The 1 H and 13 C NMR spectra of the trans , trans ‐, cis , cis ‐ and cis ‐C‐3–C‐4, trans ‐C‐7–C‐8‐germacrones and of the cis ‐C‐2–C‐3, trans ‐C‐7–C–8, trans ‐C‐2–C‐3, cis ‐C‐7–C‐8‐ and cis , cis ‐isogermacrones are analysed. The last two isogermacrones are new compounds. The C‐2–C‐3 double bond in the previously described isogermacrone is found to be of cis configuration, contrary to the hitherto accepted trans arrangement.