Novel compounds of the formula ##STR1## are disclosed in which R.sup.1 is a phenyl, phenoxy, phenylthio, benzyl or heterocyclic radical which may be substituted, and R.sup.2 is hydrogen, a substituted-vinylcyclopropanecarbonyl group, a tetramethylcyclopropanecarbonyl group, or a 1-(substituted-phenyl)-2-methylpropylcarbonyl group. The compounds wherein R.sup.2 is other than hydrogen are insecticides.
Insecticidal 4-phenyl-2-indanyl 1R,cis-3-(2-halo-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarbo xylates having a racemic or optically active indanyl moiety, methods of preparation and use, and efficacy data against representative insect species are disclosed and exemplified.
An insecticidal enantiomer pair consisting essentially of a substantially equimolar mixture of S-4-phenyl-2-indanyl 1R, cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarbox ylate and R-4-phenyl-2-indanyl 1S,cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecar boxylate, its preparation by liquid chromatography, and its utility as an insecticide are described and exemplified.
Novel compounds of the formula ##STR1## are disclosed in which R.sup.1 is a phenyl, phenoxy, phenylthio, benzyl or heterocyclic radical which may be substituted, and R.sup.2 is hydrogen. The compounds are intermediates of cyclopropanecarboxylate and related insecticides.
accomplished with a chiral Lewis base and a chiral Brønsted acid as cocatalysts, generating various β-arylthio ketones bearing an all-carbon quaternary center in moderate to excellent yields and excellent enantioselectivities. These chiral arylthio ketone products are common intermediates with many applications, for example, in the design of new chiral catalysts/ligands and the totalsynthesis of natural products