Poly(4-vinylpyridinium)hydrogen sulfate: a novel and efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under conventional heating and ultrasound irradiation |
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| Authors: | Khaligh Nader Ghaffari |
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| Institution: | Department of Chemistry, College of Science, University of Guilan, Rasht, P.O. Box 41335-19141, Iran |
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| Abstract: | A simple and convenient procedure for the synthesis of 14-aryl-14H-dibenzoa,j]xanthenes is described through a one-pot condensation of 2-naphthol with aryl aldehydes in the presence of poly(4-vinylpyridinium)hydrogen sulfate as an efficient, cheap, readily synthesized and eco-friendly catalyst in a solvent free media using conventional heating and ultrasound irradiation. |
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| Keywords: | Poly(4-vinylpyridinium)hydrogen sulfate Xanthenes Ultrasound irradiation One-pot reactions |
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