American Cyanamid Company

Kenneth D Lotts

Jerry M Barton

Don Wesley Long

A novel process for the preparation of herbicidal 2-(5,5-disubstituted-4-oxo(or thiono)-2-imidazolin-2-yl)nicotinic acids, quinoline-3-carboxylic acids and benzoic acids by the base-catalyzed cyclization of appropriately substituted 2-carbamoyl nicotinic acids, 3-quinolinecarboxylic, or benzoic acids.

Process for the preparation of

A novel process for the preparation of 2-(5,5-disubstituted-4-oxoor thiono)-2-imidazolin-2-yl)nicotinic acids, quinoline-3-carboxylic acids and benzoic acids by the base-catalyzed cyclization of appropriately substituted 2-carbamoyl nicotinic acids, 3-quinolinecarboxylic, or benzoic acids. The products are useful as herbicides.

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Trenton, NJ, United States of America

Kenneth D Lotts