Umfang:
Online-Ressource
ISSN:
1522-2675
Inhalt:
Abstract: Alkaloids with the pleiocarpin skeleton have been found to undergo ring closure on pyrolysis to give heptacyclic compounds with the kopsan (XI) carbon skeleton. Kopsinic acid (V), the main example, gave kopsanone (XIII). The structure XIII for kopsanone has been established by physical and chemical methods, degradation to the methine base XVII and reduction to kopsan (XI). A mechanism to explain these cyclizations is discussed.
In:
volume:49
In:
number:4
In:
year:2004
In:
pages:1237-1243
In:
extent:7
In:
Helvetica chimica acta, New York, NY : Wiley-VCH, 1918-, 49, Heft 4 (2004), 1237-1243 (gesamt 7), 1522-2675
Sprache:
Englisch
DOI:
10.1002/hlca.19660490403
URN:
urn:nbn:de:101:1-2407110741295.782252955164
URL:
https://doi.org/10.1002/hlca.19660490403
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2407110741295.782252955164
URL:
https://d-nb.info/1335297359/34
URL:
https://doi.org/10.1002/hlca.19660490403
