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1H and 13C chemical shifts and coupling constants of lupane. Application of two-dimensional NMR techniques

✍ Scribed by Willi Ammann; René Richarz; Toni Wirthlin; Detlef Wendisch

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
505 KB
Volume
20
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

2D NMR techniques (J‐resolved ^13^C, ^13^C^13^C correlated, ^1^H^13^C correlated) were used to gather more chemical shift and coupling information on the pentacyclic triterpene, lupane. They confirm and complete ^13^C assignments made earlier, and corroborate the constitution and major configurational details of lupane. Lupane is a parent compound and spectral reference in the study of sedimental demethylated triterpenes.

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