Process for preparing herbicidal 5-oxo-imidazolidinyl benzoic acid, nicotinic acid quinolinecarboxylic acid, optical isomers thereof, tautomers and acid addition salts or esters thereof and salts thereof

摘要

The present invention provides a process for the preparation of herbicidal 2-(4,4-disubstituted-5-oxo-2-imidazolin-2-yl) benzoic, nicotinic and quinoline-3-carboxylic acids, esters and salts.