Boron Trifluoride Etherate Promoted Microwave-Assisted Synthesis of Antimalarial Acridones. 2019

Papireddy Kancharla, and Rozalia A Dodean, and Yuexin Li, and Jane X Kelly
Department of Chemistry, Portland State University, Portland, Oregon 97201, United States.

A microwave-assisted, rapid and efficient method using boron trifluoride etherate (BF3.Et2O) for the synthesis of acridones, via an intramolecular acylation of N-phenylanthranilic acid derivatives, has been developed. The reaction proceeds under solvent-free conditions, tolerates a wide range of functional groups, and provides rapid access to a range of acridones in good to excellent yields. Several of the synthesized acridones exhibited potent antimalarial activities against CQ sensitive and multi-drug resistant (MDR) parasites.

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