The structure of 1-cinnamoylmelianolone, a new insecticidaltetranortriterpenoid, from Melia Azedarach L. (Meliaceae)

✍ Scribed by S.Mark Lee; James A Klocke; Manuel F Balandrin

• Publisher: Elsevier Science
• Year: 1987
• Tongue: French
• Weight: 231 KB
• Volume: 28
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)95530-8

✦ Synopsis

1-Cinnamoylmelianolone (l), a new insecticidal tetranortriterpenoid, was isolated from methaiiolic extracts of the fruit of Melia azedarach L. The structure of l_ is proposed on the basis of specmdata. Melia azedarach L. (Meliaceae), the Chinaberry or Persian lilac tree, has long been recognized as an insecticidal and medicinal plant 1) . One of the absence of 'H-and l3 C-NMR signals corresponding to a tigloyl group indicated that the cinnamoyl moiety replaced the tigloyl group of 2 at C-l in L.

The complete spectral data of L and its derivatives, and their respective insecticidal activities, will be published in detail elsewhere.

Acknowledgement.