Ciencias Agrarias >
Instituto de Recursos Naturales y Agrobiología Sevilla (IRNAS) >
(IRNAS) Artículos >
Closed Access item Intermediates with biosynthetic implications in de novo production of phenyl-phenalenone-type phytoalexins by Musa acuminata revised structure of emenolone
|Authors:||Gutiérrez Luis, Javier|
Fletcher, Winston Q.
Abad Grillo, T.
González-Pérez, José Antonio
|Citation:||Tetrahedron 51(14): 4117–4130 (1995)|
|Abstract:||Three new intermediates (1 – 3) in de novo biosynthetic pathway to phenyl-phenalenone-type phytoalexins have been isolated from rhizomes of Musa acuminata infected with the fungus Fusarium oxysporum. The structures of the new pre-phytoalexins were elucidated on the basis of spectroscopic evidences, chemical correlation and acid catalyzed biomimetic cyclization of 1 to emenolone (4), isolated from the same source and whose previously reported structure has been unambiguously corrected by X-ray diffraction analysis. The chemical shift for all of the hydrogen and carbon atoms in the substances were unambiguously established by mono- and bidimensional, homo- and heteronuclear NMR experiments (1H NMR, 13C NMR, COSY, ROESY, HMQC and HMBC).|
|Publisher version (URL):||http://dx.doi.org/10.1016/0040-4020(95)00129-V|
|Appears in Collections:||(IRNAS) Artículos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.