Leaf-cutting ants toxicity of limonexic acid and degraded limonoids from Raulinoa echinata. X-ray structure of epoxy-fraxinellone
Biavatti, Maique W.
Vieira, Paulo C.
Da Silvab, M. Fátima G. F.
Fernandes, João B.
Peñaflor, M. Fernanda G. V. [UNESP]
Bueno, Odair C. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Phytochemical survey of roots extracts of the South Brazilian endemic plant Raulinoa echinata Cowan, Rutaceae led to the isolation of known degraded limonoids: fraxinellone, fraxinellonone and epoxy-fraxinellone. The latter was previously isolated also from the stems, but the relative configuration could not be solved by NMR experiments. This paper deals with the X-ray diffraction analysis of epoxy-fraxinellone and its toxicity to leaf-cutting ants, describes the isolation of fraxinellonone and fraxinellone for the first time in Raulinoa. Epoxy-fraxinellone showed no toxicity to the leaf-cutting ants (Atta sexdens rubropilosa). The limonoid limonexic acid, isolated from stems, presented high toxicity to the leaf-cutting ants, diminishing considerably their longevity. ©2005 Sociedade Brasileira de Química.
Atta sexdens rubropilosa, Degraded limonoids, Limonexic acid, Raulinoa echinata, X-ray structure
Journal of the Brazilian Chemical Society, v. 16, n. 6 B, p. 1443-1447, 2005.