American Cyanamid Company

Sergio I Alvarado

Peter J Wepplo

Robert F Doehner, Jr

Alvin D Crews, Jr

Thomas E Brady

David M Gange

Desiree L Little

Pierre A Marc

Brian J Dahlke

Eileen Reilly-Horch

Keith Douglas Barnes

Gavin David Heffernan

Michael A Guaciaro

Mark C Manfredi

David Allen Hunt

Marianne Carlsen

Michael Vernie Cossette

Gregory J Haley

Richard Anthony Rampulla

Gary Allen Meier

Billy Gene Bullock

Eileen M Reilly

There are provided 3-(1,2-benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or thione compounds of formula I and 3-(1,2-benzisothiazol- and isoxazol-5-yl)-4(3H)-pyrimidinone or thione compounds of formula II ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.

3-(1,2-Benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or

There are provided methods to control mono-cotyledenous weed species in the presence of crops and particularly in the presence of cereal crops. Also provided are 4-(2,6-disubstituted-phenoxy)coumarin derivatives useful as herbicidal agents and methods to prepare same.

4-phenoxycoumarins as herbicidal agents

There are provided methods to control monocotyledenous weed species in the presence of crops and particularly in the presence of cereal crops. Also provided are 4-(2,6-disubstituted-phenoxy)coumarin derivatives useful as herbicidal agents and methods to prepare same.

4-Phenoxycoumarins as herbicidal agents

There are provided novel benzenesulfonyl carboxamide compounds and novel intermediate benzenesulfonyl-2-imidazolin-5-one compounds, novel intermediates and methods for the preparation of said compounds, and a method for controlling a variety of annual and perennial plant species utilizing novel benzenesulfonyl carboxamide compounds and novel intermediate benzenesulfonyl 2-imidazolin-5-one compounds.

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Trenton, NJ, United States of America

Sergio I Alvarado