Limonoids from andiroba oil and Cedrela fissilis and their insecticidal activity

Abstract

Nine limonoids were isolated from Carapa guianensis and Cedrela fissilis. Among them, 1,2-dihydro-3beta-hydroxy-7-deacetoxy-7-oxogedunin is a new compound. Moreover, the assignments of some chemical shifts of xyloccensin k have been corrected and ¹H NMR data of 7-deacetylgedunin have been assigned for the first time. These isolated limonoids were assayed on Atta sexdens rubropilosa workers showing moderate insecticidal activities.

Keywords

• Meliaceae
• Carapa guianensis
• Cedrela fissilis
• limonoids
• insecticidal activity