Rapid Microwave-Enhanced Synthesis of 4-Hydroxyquinolinones under Solvent-Free Conditions.
2010
Abstract 3-Aryl-4-hydroxyquinolin-2(1 H )-ones are potent and selective glycine-site NMDA receptor antagonists of pharmaceutical interest. A novel microwave-enhanced synthesis of such quinolinones under solvent-free conditions has been developed. The quinolinones are easily obtained in a one-pot procedure as a result of the formal amidation of a malonic ester derivative with an aniline and subsequent cyclisation of the intermediate malondianilides.
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