AN ISOCOUMARIN DERIVATIVE FROM PAEPALANTHUS BROMELIOIDES
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Coadvisor
Graduate program
Undergraduate course
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Munksgaard Int Publ Ltd
International Union of Crystallography (IUCr)
International Union of Crystallography (IUCr)
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Article
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Acesso aberto
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Abstract
The structure of 5,7,9,10-tetramethoxy-3-methyl-1 H-naphtho[2,3-c]pyran-1-one, C18H18O6, a derivative of a natural isocoumarin isolated from Paepalanthus bromelioides, was determined by X-ray analysis, which unequivocally confirmed the previously assigned structure. Small deviations from the standard angles, resulting from steric hindrance between the methoxyl and carbonyl groups, were observed.
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Language
English
Citation
Acta Crystallographica Section C-crystal Structure Communications. Copenhagen: Munksgaard Int Publ Ltd, v. 50, p. 1269-1271, 1994.
