Eli Lilly and Company

Jack G Samaritoni

Riaz F Abdulla

A novel process is described for preparing substituted pyridazines, where a less substituted pyridazine is reacted with a carboxylic acid in the presence of a silver ion as catalyst, using peroxydisulfate ion. The reaction is run at a temperature from about 40.degree. to 80.degree. C. in an aqueous solvent system and mineral acid. The substituted pyridazines are useful as intermediates to herbicidal and fungicidal compounds.

Preparation of substituted pyridazines

This invention describes noval pyridazinylurea compounds, which are useful as herbicides.

Pyridazinylurea compounds and methods of use as herbicides

This invention describes novel pyridazinylimidazolidinone compounds, which are useful as herbicides.

Herbicidal pyridazinylimidazolidinone compounds

This invention discloses novel pyridinylimidazolidinone compounds, which are useful as herbicides.

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Knightstown, IN, United States of America

Jack G Samaritoni