Pesticides

Details Pesticides Pesticides

1980-07-28

1984-08-07

Torrence, Dolph H.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Recombinant or stably-transformed bacterium encoding one or...

260465D, 424305, 560124, A01N 5300, C07C 69743, C07C12175

Patent

active

044643918

ABSTRACT:
New insecticides are of formula: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2 represents hydrogen or a halogeno or lower alkyl group; R.sup.3 represents hydrogen or a halogeno or carbo(lower alkoxy) group which contains at least 2 carbon atoms in the lower alkoxy residue when R.sup.2 represents methyl; with the proviso that (a) R.sup.2 and R.sup.3 each represent hydrogen only when R.sup.1 represents methyl, (b) when R.sup.1 and R.sup.3 each represent hydrogen and R.sup.2 represents alkyl, that alkyl group contains at least 2 carbon atoms and (c) when R.sup.3 represents halogeno, R.sup.2 represents hydrogen or halogeno; and R represents a group which forms insecticidal esters with chrysanthemic acid e.g. 5-benzyl-3-furylmethyl, 3-phenoxybenzyl, .alpha.-cyano-3-phenoxybenzyl. The esters are prepared by forming the ester linkage conventionally or by a Wittig reaction using a 3-formyl- or 3-acetyl-2,2-dimethyl cyclopropane carboxylic acid esterified with the desired residue or by an alkyl group which is subsequently converted to the desired residue.

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