B. Mikhova et H. Duddeck, C-13 NMR-SPECTROSCOPY OF TRI-CYCLIC AND TETRACYCLIC QUINOLIZIDINE ALKALOIDS - COMPILATION AND DISCUSSION, Magnetic resonance in chemistry, 36(11), 1998, pp. 779-796
A comprehensive collection of C-13 chemical shifts of 159 tri- and tet
racyclic quinolizidine alkaloids (sparteine derivatives) is presented.
The data are discussed in terms of substituent effects, molecular geo
metries and protonation effects. Some IR, H-1 and N-15 NMR and MS data
are included. (C) 1998 John Wiley & Sons, Ltd.