Carbon-13 NMR studies in the polycyclic
โ
J. C. Gramain; J. C. Quirion
๐
Article
๐
1986
๐
John Wiley and Sons
๐
English
โ 711 KB
A new 13C N M R method based on solvent effects allows the identification of carbon atoms a to a carbonyl group. With a simple change in solvent from CDCl, to CDC1,-dioxane (1:4), the -C absorption for all carbons except those a to the carbonyl group in the compounds under study were displaced to lo