Trans-3-substituted-1-indanol insecticidal ester derivatives
AssigneeFMC Corporation
InventorErnest L. Plummer
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Abstract
Disclosed are novel compounds of the formula ##STR1## in which R.sup.1 is hydrogen or methyl; R.sup.2 is phenyl or phenyl-methyl either of which is optionally ring substituted with lower alkyl or halogen; R is hydrogen, a tetramethylcyclopropanecarbonyl group, a 1-(substitutedphenyl)-2-methylpropylcarbonyl group, a 1-(4-ethoxyphenyl)-2,2-dichlorocyclopropanecarbonyl group, or a substitutedvinylcyclopropanecarbonyl group; and, with respect to the indanyl substituents, the 1,3-trans isomer is present in an isomeric excess over the corresponding 1,3-cis isomer. The compounds wherein R is other than hydrogen are insecticides, and the compounds wherein R is hydrogen are insecticide intermediates.
Claims18
A 3-substituted-1-indanyl ester of the formula ##STR8## wherein R.sup.2 is phenylmethyl which may be substituted on the phenyl ring with lower alkyl or halogen;
- R is 2,2,3,3-tetramethylcyclopropanecarbonyl, 1-(4-chlorophenyl)-2-methylpropyl-1-carbonyl, 1-(4-ethoxyphenyl)-2,2-dichlorocyclopropanecarbonyl, or an ethenylcyclopropanecarbonyl group of the formula ##STR9## wherein Y and Z, the same or different, are hydrogen, halogen, lower alkyl, perhaloalkyl, phenyl which may be substituted with halogen or lower alkyl, or phenylthio which may be substituted with halogen or lower alkyl, with the proviso that one of Y and Z is other than hydrogen;
- and, with respect to the substituents on the indanyl moiety, the 1,3-trans isomer is present in an isomeric excess over the 1,3-cis isomer of at least 50%.
Dependencies are inferred from the claim text.