Palladium-Catalyzed Carbonylation to Form 2-Substituted 1,4-Dihydro- 4-oxo-quinoline

Torii, S.; Okumoto, H.; Xu, L. H. Tetrahedron Lett. 1991, 32, 237.

Palladium-catalyzed carbonylation of 2-haloaniline in the presence of terminal acetylenes under proper conditions (20 Kgcm² of CO at 120 ｡C) gave a variety of 2-substituted 1,4-dihydro-4-oxo-quinolines in good yields.