The phenomenon of conformational isomers of naturally occuring dimeric B-procyanidins
has been studied systematically by the 270 MHz-1H-NMR spectra of the acetate derivatives and the observed data are presented as an
additional analytical criterion.
Begonia glabra
- Tiliae flos (DAB 8) - Natural Procyanidin Dimers - Decaacetates of B-1, B-2, B-4
- Conformational isomers - 270 MHz-1H-NMR spectra