COLORADO POTATO BEETLE ANTIFEEDANTS BY SIMPLE MODIFICATION OF THE BIRCHBARK TRITERPENE BETULIN

Authors
HUANG FY CHUNG BY BENTLEY MD ALFORD AR
Citation
Fy. Huang et al., COLORADO POTATO BEETLE ANTIFEEDANTS BY SIMPLE MODIFICATION OF THE BIRCHBARK TRITERPENE BETULIN, Journal of agricultural and food chemistry, 43(9), 1995, pp. 2513-2516
Citations number
27
Categorie Soggetti
Food Science & Tenology",Agriculture,"Chemistry Applied
Journal title
Journal of agricultural and food chemistry → ACNP
ISSN journal
00218561
Volume
43
Issue
9
Year of publication
1995
Pages
2513 - 2516
Database
ISI
SICI code
0021-8561(1995)43:9<2513:CPBABS>2.0.ZU;2-X
Abstract
Oxidation of the 19-side-chain of betulin 3 beta,28-diacetate, a penta cyclic triterpene derived from the readily available birchbark triterp ene, betulin, yielded compounds active as antifeedants against larvae of the agricultural insect pest Colorado potato beetle, Leptinotarsa d ecemlineata. Of the eight compounds investigated, the most active was 30-hydroxy-20-oxo-29-norlup-3 beta,28-diacetate (VI). Acetylation of V I significantly reduced antifeedant activity.