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Molecules 2009
Phosphotungstic Acid: An Efficient, Cost-effective and Recyclable Catalyst for the Synthesis of Polysubstituted QuinolinesDOI: 10.3390/molecules14031126 Keywords: Heteropolyacid, Heterogeneous catalysis, Friedl？nder annelation, Quinoline Abstract: Phosphotungstic acid (H3PW12O40) was used as an efficient and recyclable catalyst for the synthesis of polysubstituted quinolines through the Friedl？nder condensation of 2-aminoarylketone with carbonyl compounds, which was achieved by conventional heating under solvent-free conditions.
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