Artículos de revistas
AN ISOCOUMARIN DERIVATIVE FROM PAEPALANTHUS BROMELIOIDES
Fecha
1994-08-15Registro en:
Acta Crystallographica Section C-crystal Structure Communications. Copenhagen: Munksgaard Int Publ Ltd, v. 50, p. 1269-1271, 1994.
0108-2701
10.1107/S0108270193013861
WOS:A1994PF98600038
WOSA1994PF98600038.pdf
7927877224326837
0000-0003-3032-2556
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
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.