[en] 13C NMR spectra of some tertiary and quaternary alkaloids are recorded and the signals assigned. Graphic interpretation of off-resonance spectra and substituent shielding effects together with the effect of Nb-methylation are utilized in the spectral interpretations.
Disciplines :
Pharmacy, pharmacology & toxicology Chemistry
Author, co-author :
Coune, Claude
Angenot, Luc ; Université de Liège - ULiège > Département de pharmacie > Pharmacognosie
Denoël, José
Language :
French
Title :
13C NMR des alcaloïdes des Strychnos: les dérivés de l'harmane et de l'usambarensine
Alternative titles :
[en] 13C NMR spectra of Strychnos alkaloids: harman and usambarensine derivatives
Publication date :
1980
Journal title :
Phytochemistry
ISSN :
0031-9422
eISSN :
1873-3700
Publisher :
Pergamon Press, New York, United States - New York
Freman, Hill (1971) Fourier Transform Study of NMR Spin–Lattice Relaxation by “Progressive Saturation”. The Journal of Chemical Physics 54:3367.
Birdsall, Birdsall, Feeney (1972) Simplified 13C spectral assignments using a graphical method to present 13C spectra recorded under conditions of proton off-resonance spin decoupling. Journal of the Chemical Society, Chemical Communications 316.
Angenot Thèse de doctorat in Dissert. Abstr. Int. , no. 11; 1974, 34:338.
Dideberg, Dupont, Angenot (1975) Determination de la structure cristalline et de la configuration absolue d'un dérivé de l'usambarensine. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 31 B:1571.
Richard, Delaude, Le, Le Phytochemistry 1978, 17:539.
Späth, Lederer (1930) Synthesen von 4-Carbolinen. Berichte der deutschen chemischen Gesellschaft (A and B Series) 63:2102.
