PROCESS FOR PREPARING 2-/5,5-DISUBSTITUTED-4-OXO-2-IMIDAZOLIN-2-IL/-BENZOIC ACID, -NICOTINIC ACID AND -QUINOLINE-3-CARBOXYLIC ACID DERIVATIVES

摘要

A novel process for the preparation of 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.