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1 H and 13 C NMR of acetyl derivatives of shamimin, a flavonol‐ C ‐glycoside
Author(s) -
Faizi Shaheen,
Ali Muhammad
Publication year - 2000
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/1097-458x(200008)38:8<701::aid-mrc661>3.0.co;2-1
Subject(s) - chemistry , glycoside , acetylation , carbon 13 nmr , hydrolysis , stereochemistry , proton nmr , nuclear magnetic resonance spectroscopy , organic chemistry , biochemistry , gene
On acetylation, shamimin ( 1 ) a new flavonol‐ C ‐glycoside, furnished the penta‐, hepta‐ and octaacetates, 5 , 4 and 2 , 3 respectively. Compound 2 hydrolysed into the tetraacetate 6 whereas 3 and 4 converted into 5 at room temperature. 1 H and 13 C NMR assignments are described. Copyright © 2000 John Wiley & Sons, Ltd.