Eli Lilly and Company

Air Products and Chemicals, Inc.

Other

Tony Cebalo

Robert A Walde

Robert E Buntrock

Novel thiadiazole compounds are produced having the following general formula: ##STR1## wherein X is S or SO.sub.2

Thiadiazole compounds and methods of use

Novel thiadiazole compounds are disclosed which contain in the 5 position, C-linked moieties which are either acyclic hydrocarbon radicals or halogenated acyclic hydrocarbon radicals (in which case each halogen is independently selected from F, Cl and Br). These novel compounds also contain an exocyclic nitrogen in the 2 position, and some of them contain the exocyclic substituent: ##STR1## wherein R.sub.3 is a lower acyclic hydrocarbon radical and R.sub.4 is either H or a lower acyclic hydrocarbon radical. Synthesis of these compounds is disclosed, including synthesis of those which exhibit isomerism and/or tautomerism. Various of these compounds have various agricultural utilities (e.g. as herbicides, insecticides, acaricides and fungicides), each of them having at least one such biological utility. Methods of using these compounds in phytotoxic fungicidal, acaricidal and insecticidal applications are disclosed.

Thiadiazole compounds and methods of using said compounds in agriculture

This invention relates to a novel substituted thiadiazole, identified as 1-[5-(2-chloro-1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-1,3-dimethylurea, to its use in a novel method for the control of unwanted vegetation, and to a novel herbicidal composition employing the substituted thiadiazole as the herbicidally-active ingredient.

Herbicidal compound and method of use

Novel thiadiazole compounds are taught and disclosed having the following general structure: ##STR1## wherein R.sub.1 is a halogenated C.sub.1 to C.sub.4 acyclic hydrocarbon radical, wherein the halogen is fluorine, chlorine and/or bromine,

Amide derivatives of 1,3,4-thiadiazoles

A group of new 1,3,4-thiadiazol-2-ylureas are characterized by a cyanoalkyl group at the 5-position. The alkyl group to which the cyano group is attached is always branched, and is preferably branched at the carbon atom adjacent to the ring. The compounds are also characterized by small alkyl or alkoxy groups on the urea nitrogens. The new compounds are outstandingly effective herbicides and are also effective, when used at low application rates, in the control of plant pathogens.

Herbicidal use of 5-cyanoalkyl-1,3,4-thiadiazol-2-ylureas

Novel 1,3,4-thiadiazol-2-ylureas characterized by an hetero-ring sulfamoyl group at the 5-position, and by small alkyl or alkoxy groups on the urea nitrogens. The hetero-ring groups are 5- and 6-membered rings containing an oxygen, sulfur, or nitrogen atom, and may optionally be linked to the sulfamoyl nitrogen by a methylene group. The novel compounds are effective pre- and postemergence herbicides.

Growing community of inventors

Indianapolis, IN, United States of America

Tony Cebalo