Citation: S. Allameh, A. Davoodnia, A. Khojastehnezhad. An efficient and eco-friendly synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes using H₄[SiW₁₂O₄₀] as a heterogeneous and reusable catalyst under solvent-free conditions[J]. Chinese Chemical Letters, ;2012, 23(1): 17-20. doi: 10.1016/j.cclet.2011.10.003 shu

An efficient and eco-friendly synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes using H₄[SiW₁₂O₄₀] as a heterogeneous and reusable catalyst under solvent-free conditions

Department of Chemistry, Faculty of Sciences, Islamic Azad University, Mashhad Branch, Mashhad 91735-413, Iran

Received Date: 26 May 2011

A simple and efficient catalytic protocol for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes via the one-pot condensation of β-naphthol and aryl aldehydes using silicotungstic acid (H₄[SiW₁₂O₄₀]) is reported. The present method offers several advantages such as high to excellent yields, short reaction times, recovery and reusability of catalyst, mild reaction conditions and easy workup procedures.
- Dibenzo[a,j]xanthenes,
- Reusable catalyst,
- Solvent-free conditions,
- β-Naphthol,
- Aryl aldehydes
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