INSECT ANTIFEEDANTS FROM AZADIRACHTA INDICA (PART 5): CHEMICAL MODIFICATION AND STRUCTURE-ACTIVITY RELATIONSHIPS OF AZADIRACHTIN AND SOME RELATED LIMONOIDS
Chemical modification of the potent insect antifeedant and growth-disruption agent azadirachtin (1) and the related limonoids 3-tigloyl azadirachtol (6) and salannin (27) have permitted an exploration of the biological activity of these compounds.General
Ley, Steven V.,Anderson, James C.,Blaney, Wally M.,Jones, Philip S.,Lidert, Zev,Morgan, David E.
p. 5175 - 5192
(2007/10/02)
CHEMISTRY OF INSECT ANTIFEEDANTS FROM AZADIRACHTA INDICA (Part 3) REACTIONS ON THE C-22,23 ENOL ETHER DOUBLE BOND OF AZADIRACHTIN AND CONVERSION TO 22,23-DIHYDRO-23-&β-METHOXYAZADIRACHTIN.
Azadirachtin (1) can be converted to the natural product 22,23-dihydro-23β-methoxyazadirachtin (2) via selective bromomethoxylation of the C-22,23 enol ether double bond and tri-n-butyltin hydride reduction; the corresponding acetic acid adduct on pyrolysis affords (1) in high yield.The antifeedant effects of the addition compounds were assessed.
Ley, Steven V.,Anderson, James C.,Blaney, Wally M.,Lidert, Zev,Morgan, E. David,et al.
p. 5433 - 5436
(2007/10/02)
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