0000000000614080
AUTHOR
Bruno Frei
13C NMR of carbonyl compounds. 3. Structure and dynamics of protonated enones and dienones
Abstract The unsaturated ketones 1 1 – 10 10 were protonated at low temperatures and studied by dynamic 13C NMR spectroscopy. Four interconverting stereoisomers were detected which differ in their conformation with respect to the CO and CC (enone) single bond.
13C NMR of carbonyl compounds -4. Solution conformation of β-ionone and related dienones
Abstract The steric factors relevant for the conformations of β-ionone and structurally related compounds were studied by dynamic n.m.r. and 1 H, 1 H-NOE measurements.