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Assignment of the 1H and 13C NMR spectra of anthraquinone glycosides from Rhamnus frangula

✍ Scribed by G. W. Francis; D. W. Aksnes; Ø. Holt

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
173 KB
Volume
36
Category
Article
ISSN
0749-1581

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✦ Synopsis

1H and 13C NMR chemical shifts are reported for Ðve anthraquinone glycosides from Rhamnus frangula (Alder Buckthorn). The investigation utilized data obtained by a variety of 1D and 2D NMR techniques such as homodecoupling, NOE, J-modulated spin-echo, COSY, HSC and COLOC. Assignments were made for frangulin A and B and glucofrangulin A and B. A further compound previously thought to be a glycoside of emodin is shown to be physcion-8-O-b-D-glucoside.

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