New insect antifeedants from Meliaceae
- Publikations-Art
- Kongressbeitrag
- Autoren
- Kraus, W.; Grimminger, W.; Sawitzki, G.
- Erscheinungsjahr
- 1978
- Veröffentlicht in
- Symp. Pap. - IUPAC Int. Symp. Chem. Nat. Prod., 11th
- Herausgeber
- Marekov, N.; Ognyanov, I.; Orahovats, A.; Izd. BAN
- Verlag
- Izd. BAN , Sofia, Bulg.
- Seite (von - bis)
- 115-16
- Tagungsname
- 11th IUPAC Int. Symp. Chem. Nat. Prod.
- Tagungsort
- nnb
- Tagungsdatum
- nnb
The bark of Toona ciliata yielded 4 tetranortriterpenoids which have antifeeding activity toward the Mexican bean beetle Epilachna varivestis. The 4 compds. were toonacilin, 6-acetoxytoonacilin, 23-(R,S)-hydroxytoonacilide (I), and 21-(R,S)-hydroxytoonacilide(II).