E.i. Dupont De Nemours and Company

Degussa Aktiengesellschaft

Wallace C Petersen

George Levitt

Barry A Wexler

William E Barnette

Thomas R Dean

Karlheinz Drauz

Christoph Weckbecker

Wonpyo Hong

Balreddy Kamireddy

Edward John Adams

Matthias Schaefer

Compounds of Formula I, and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein X, Y, J, R.sup.1, and R.sup.2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula I and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I.

Herbicidal sulfonamides

This invention relates to pyridine N-oxide sulfonylurea herbicides, agriculturally suitable compositions containing them and their method-of-use as preemergent and/or postemergent herbicides or plant growth regulants.

Herbicidal pyridine N-oxide sulfonylureas

Thiocarbonylsulfonylureas, useful as herbicides and plant growth regulants, herbicidal compositions employing these compounds and methods of applying them to soil or directly to plants have been discovered.

Triazine-substituted azobenzenesulfonamides useful as preemergent and postemergent herbicides, selected from compounds of Formulae I or II ##STR1## or agriculturally suitable salts thereof, wherein R, R.sub.1, R.sub.2, R.sub.3 and A are as defined herein.

Triazine-substituted herbicidal azobenzenesulfonamides

Azobenzenesulfonamides such as 2-[4-(dimethylamino)phenylazo]-N-[(4-methoxy-6-methylpyrimidin-2-yl)aminoc arbonyl]benzenesulfonamide are useful as preemergent and postemergent herbicides.

Herbicidal azobenzenesulfonamides

This invention relates to a novel class of sulfonamides and their use as herbicides and plant growth regulants.

This invention relates to novel urea and isourea compounds, agricultural compositions containing them and to their method of use as pre- and post- emergence herbicides and to plant growth regulants.

Herbicidal s-triazines

A process of reacting a ring carbon atom of an aromatic compound Ar with a compound of the formula H.sub.2 NCH.dbd.NH.sub.2.sup.+ CH.sub.3 CO.sub.2.sup.-, and an anhydride which has the ##STR1## at from 10.degree. to 200.degree. C. and preferably 25.degree. to 40.degree. C. to form a compound of the formula ##STR2## where m is 1, 2 or 3, and A is H or F. In the case where m is 1 the compound ##STR3## can be hydrolyzed to ArCHO. Additionally, Fischers base can be reacted with formamidine acetate to form ##STR4##

Process of preparing aromatic aldehydes by reacting selected aromatic

This invention relates to novel urea and isourea compounds, agricultural compositions containing them and to their method of use as pre- and post-emergence herbicides and to plant growth regulants.

Herbicidal ureas and isoureas

Hydroxymethylbenzenesulfonamide derivatives have utility as agricultural chemicals and in particular as herbicides.

Growing community of inventors

Hockessin, DE, United States of America

Wallace C Petersen