A Convenient and General Palladium??Catalyzed Carbonylative Coupling for the Synthesis of 2??Arylbenzoxazinones

…, J Schranck, H Neumann, M Beller

Index: Wu, Xiao-Feng; Schranck, Johannes; Neumann, Helfried; Beller, Matthias Chemistry - A European Journal, 2011 , vol. 17, # 44 p. 12246 - 12249

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Abstract

Benzoxazinones represent a class of annulated nitrogen heterocycles that are of interest to organic synthesis owing to their various biological activities.[1] Among the different methodologies developed for their preparation,[2] cyclization of anthranilic acid, N- acylanthranilic acid, or isotonic anhydride are most accepted.[3] Although alternative methodologies are known,[4] the availability of substrates and required reaction ...