ChemInform Abstract: Synthesis of Pyridazinedione Derivatives Starting from Anhydrides of 2,3‐Pyridine‐ and 2,3‐Quinolinedicarboxylic Acids.

Abstract

Synthesis of Pyridazinedione Derivatives Starting from Anhydrides of 2,3-Pyridine-and 2,3-Quinolinedicarboxylic Acids. -A similar reaction sequence with comparable yields is carried out starting from 2,3-quinolinedicarboxylic acid anhydride. Addition of an ionic liquid increases the yield for the final intramolecular Wittig reaction remarkably. Isomeric mixtures are generally not separated. -(SAKHAUTDINOV, I. M.; TUKHVATULLIN, O. R.; FATYKOHOV, A. A.; GALIN, F. Z.; Russ.