The pyrethrins and related compounds. Part XXXVIII. Optimisation of insecticidal activity in 3-[(alkoxyimino)methyl]-4-fluorobenzyl esters

A - Papers appearing in refereed journals

Beddie, D. G., Farnham, A. W. and Khambay, B. P. S. 1995. The pyrethrins and related compounds. Part XXXVIII. Optimisation of insecticidal activity in 3-[(alkoxyimino)methyl]-4-fluorobenzyl esters. Pesticide Science. 44 (3), pp. 261-268.

AuthorsBeddie, D. G., Farnham, A. W. and Khambay, B. P. S.
Abstract

Optimisation of activity in 3-[(alkoxyimino)methylbenzyl] esters has been investigated by introducing an alpha-cyano group and a fluorine atom in position 4 of the benzylic moiety in conjunction with varying the length and nature of the side chain. Of the five side-chain variations investigated, the 3-methoxyiminomethyl was more effective than others. Introduction of fluorine in position 4 of the benzylic moiety generally increased activity, particularly against mustard beetles, as in previous instances. Surprisingly, the effect on insecticidal activity of introducing an alpha-CN group ranged from positive to negative depending upon the nature of the alkoxyimino substituent, an effect not observed previously. The most effective esters were derived from alpha-cyano-4-fluoro-3-[(methoxyimino)methyl]benzyl alcohol, which was synthesised from 2-{4-fluoro-3-[(hydroxyimino)methyl]phenyl}-1,3-dioxolane.

KeywordsAgronomy; Entomology
Year of Publication1995
JournalPesticide Science
Journal citation44 (3), pp. 261-268
Digital Object Identifier (DOI)doi:10.1002/ps.2780440309
Open accessPublished as non-open access
Funder project or code104
902
234
ISSN0031613X
PublisherWiley

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