Chemoselective Cyclization of Aminonicotinic Acid Derivatives to 1,8-Naphthyridin-2-ones via a Potential Intramolecular Azadiene-Ketene Electrocyclization Reaction
Chemoselective Cyclization of Aminonicotinic Acid Derivatives to 1,8-Naphthyridin-2-ones via a Potential Intramolecular Azadiene-Ketene Electrocyclization Reaction