Ici Americas, Inc.

Zeneca Limited

Syngenta Corporation

Thomas H Cromartie

Michael D Broadhurst

Karl J Fisher

William G Haag

Nicholas David Polge

The invention provides methods of detecting shikimic acid comprising the steps of: oxidizing shikimic acid with periodic acid or a reagent comprising periodate and periodic acid; adding a strong base to generate a chromophore; stabilizing the chromophore with sulfite; detecting the presence of the chromophore; and optionally quantifying the amount of the chromophore. The methods of the invention can be performed directly with tissue extracts, preferably plant tissue extracts.

Method of detecting shikimic acid

A method of controlling the growth of plants comprising applying to the locus of such plants an herbicidally effective amount of a compound exhibiting an IC.sub.50 value of less than about 300 nM in the inhibition of farnesyl pyrophosphate synthase in daffodil chromoplasts.

Method of controlling plants by inhibition of farnesyl pyrophosphate

A series of novel imidate insecticides distinguished by the general formula ##STR1## in which R.sub.1 is an optionally substituted aryl group in which the substituents are halo, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkylthio, C.sub.3 -C.sub.6 cycloalkyl, nitro, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.5 carboalkoxy, C.sub.1 -C.sub.4 alkylthio, cyano, C.sub.1 -C.sub.4 alkylsulfonyl, C.sub.2 -C.sub.4 haloalkylsulfonyl; C.sub.2 -C.sub.5 alkylcarbonyl, C.sub.2 -C.sub.4 alkyleneoxy, C.sub.1 -C.sub.2 perhaloalkyleneoxy; C.sub.1 -C.sub.4 alkylendioxy, C.sub.1 -C.sub.3 halo-substituted alkylenedioxy, phenyl, mono-substituted phenyl, pyridyloxy, C.sub.2 -C.sub.4 alkylene, C.sub.2 -C.sub.4 alkenyl, C.sub.3 -haloalkenoxy; and/or amido;

Novel imidate insecticides

Insecticidal compounds having the formula ##STR1## in which R is an optionally substituted aryl moiety; R.sub.2 is an optionally substituted alkyl, cycloalkyl or alkenyl moiety, X is sulfur, amino or C.sub.1 -C.sub.4 monoalkylamino; and R.sub.3 is: (a) an optionally substituted 3-phenoxyphenalkyl, 3-phenoxypyridylalkyl or 3-(4-pyridyloxy)phenalkyl moiety; (b) pentafluorobenzyl; or (c) 2-methyl-3-phenylbenzyl.

Growing community of inventors

Albany, CA, United States of America

Thomas H Cromartie