Highly efficient and green synthesis of 14-aryl(alkyl)-14H-dibenzo[a,j]xanthene and 1,8-dioxooctahydroxanthene derivatives catalyzed by reusable zirconyl triflate [ZrO(OTf)2]under solvent-free conditions |
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Authors: | Iraj Mohammadpoor-Baltork Majid Moghadam Valiollah Mirkhani Shahram Tangestaninejad Hamid Reza Tavakoli |
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Institution: | Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran |
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Abstract: | An efficient, convenient and green method has been introduced for the preparation of 14-aryl(alkyl)-14H-dibenzoa,j]xanthene and 1,8-dioxooctahydroxanthene derivatives by the reaction of aldehydes with 2-naphthol and 5,5-dimethyl-1,3-cyclohexanedione, respectively, in the presence of ZrO(OTf)2 as a reusable catalyst under solvent-free conditions. In addition, very short reaction times, excellent yields, straightforward procedure, and relatively non-toxicity of the catalyst are other noteworthy advantages of the present method. |
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Keywords: | Xanthenes Zirconyl triflate Aldehydes 2-Naphthol Reusable catalyst |
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