AN ISOCOUMARIN DERIVATIVE FROM PAEPALANTHUS BROMELIOIDES
Carregando...
Data
1994-08-15
Autores
Tomita, K.
Vilegas, Wagner [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Munksgaard Int Publ Ltd
Resumo
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.
Descrição
Palavras-chave
Como citar
Acta Crystallographica Section C-crystal Structure Communications. Copenhagen: Munksgaard Int Publ Ltd, v. 50, p. 1269-1271, 1994.