Autor: |
M. J. O. Anteunis, F. Alderweireldt |
Rok vydání: |
2010 |
Předmět: |
|
Zdroj: |
Bulletin des Sociétés Chimiques Belges. 73:285-292 |
ISSN: |
0037-9646 |
DOI: |
10.1002/bscb.19640730314 |
Popis: |
A detailed analysis of the proton magnetic resonance (PMR) spectra of humulinic acid A and humulinic B shows that the former is the trans and the the latter the cis form with structures I and II respectively. Evidence is advanced that J trans is smaller than J cis in ring compounds with several sp2 carbon atoms in the ring. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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