Artículos de revistas
Constituintes químicos e atividade inseticida dos extratos de frutos de Trichilia elegans E T. catigua (Meliaceae)
Fecha
2009Registro en:
Química Nova, v.32, n.6, p.1553-1556, 2009
0100-4042
10.1590/S0100-40422009000600037
Autor
MATOS, Andréia Pereira
NEBO, Liliane
VIEIRA, Paulo Cezar
FERNANDES, João Batista
SILVA, Maria Fátima das Graças Fernandes da
RODRIGUES, Ricardo Ribeiro
Institución
Resumen
Phytochemical investigation of the fruits extracts of Trichilia elegans and Trichilia catigua (Meliaceae) has led to the identification of the limonoids 11β-acetoxyobacunone, cedrelone, methylangolensate and epimeric mixture of photogedunin besides known coumarins (scoparone, scopoletin, umbeliferone) and the steroids stigmasterol, β-sitosterol, sitostenone and campesterol. The structures of the compounds were proposed by spectroscopic analysis and comparison with literature data. An evaluation of the insecticidal activity of the fruits extracts of Trichilia ssp. was carried out and the extracts of T. elegans revealed to have strong insecticidal activity and the extracts of T. catigua showed moderate larval mortality on Spodoptera frugiperda.