Fmc Corporation

William A Van Saun, Jr

David M Roush

John M Tymonko

David W Keifer

Earl D Felix

Synergistic herbicidal effect is obtained in the application of clomazone together with reduction in the rate of clomazone, by combining clomazone with a photosystem II (PS-II) inhibiting herbicide such as atrazine, cyanazine or linuron. Crops such as corn and other gramineous plants are rendered more tolerant to clomazone and to combinations of clomazone with a PS-II inhibiting herbicide by treatment of the crops or crop seeds with a safener such as 1,8-naphthalic anhydride.

Herbicidal clomazone compositions and methods of use tolerant to corn

Precursors to benzyl compounds, useful in the manufacture of pyrethroid insecticides, are prepared by regiospecific addition of an enamine to a heterocyclic diene accompanied by elimination of volatile by-products.

Cyclohexadiene carboxylate insecticide intermediates

Novel alcohols of the formula ##STR1## where R.sup.5 is hydrogen are useful intermediates in the preparation of insecticidal esters. The insecticides are compounds in which R.sup.5 is a substituted-vinylcyclopropanecarbonyl group, a tetramethylcyclopropanecarbonyl group, or a chlorophenyl-2-methylpropylcarbonyl group.

Growing community of inventors

Titusville, NJ, United States of America

William A Van Saun, Jr