NMR spectra of dihydrogalanthamine and dihydroepigalanthamine and of their acetyl derivatives View Full Text


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Article Info

DATE

1974-03

AUTHORS

M. R. Yagudaev, A. Abdusamatov, S. Yu. Yunusov

ABSTRACT

Conclusions1. On the basis of the results of a comparative study of the NMR spectra of dihydrogalanthamine and dihydroepigalanthamine and their acetyl derivatives it has been shown that in the hydrogenation of the C2-C3 double bond of galanthamine and its analog a diamagnetic shift of the i and C1-H protons by 0.35 and 0.25–0.60 ppm, respectively, take place.2. The anomalous nature of the CSs of theae C1-H protons in these compounds is due to the substantial influence on their magnetic anisotropy and electric field of the unshared pair of electrons of the O atom and the C-O bond of ring C. More... »

PAGES

193-195

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00563612

DOI

http://dx.doi.org/10.1007/bf00563612

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1004407231


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