© Hippokrates Verlag Stuttgart
1HNMR Chemical Shift Values for Aromatic Protons in 2,3,9,10- and 2,3,10,11-tetrasubstituted Tetrahydroprotoberberine Alkaloids
26 March 2007 (online)
The 1HNMR (CDCl3) data on 28 tetrahydroprotoberberine alkaloids have shown that it is possible, from the chemical shift values observed for the aromatic protons, not only to determine the substitution pattern but also the type of substituents carried on the two sites in rings A and D within this class of alkaloids.
Key Word Index
1HNMR - Chemical shifts - Aromatic protons - Tetrahydroprotoberberine alkaloids