Citation: Shallnaz Rostamizadeh, Nasrin Shadjou, Ali Mohammad Amani, Saeed Balalaie. Silica supported sodium hydrogen sulfate(NaHSO₄/SiO₂): A mild and efficient reusable catalyst for the synthesis of aryl-14-H-dibenzo[a,j]xanthenes under solvent-free conditions[J]. Chinese Chemical Letters, ;2008, 19(10): 1151-1155. doi: 10.1016/j.cclet.2008.07.026 shu

Silica supported sodium hydrogen sulfate(NaHSO₄/SiO₂): A mild and efficient reusable catalyst for the synthesis of aryl-14-H-dibenzo[a,j]xanthenes under solvent-free conditions

Department of Chemistry, X. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran

Received Date: 20 March 2008

Fund Project: We gratefully acknowledge the K.N. Toosi University of Technology Research Council for financial support.

A simple and efficient procedure for the preparation of aryl-14-H-dibenzo[a,j]xanthenes by a one-pot condensation reaction of 2-naphthol and aryl aldehydes,in the presence of silica supported sodium hydrogen sulfate(NaHSO₄/SiO₂)as a catalyst and in the absence of solvent has been developed.The present method offers several advantages such as excellent yields,short reaction time (10-30 min),mild condition,simple work-up,and the Use of a cheap and environmentally friendly catalyst with remarkable reusability.
- Xanthene,
- Solvent-free,
- Silica supported sodium hydrogen sulfale,
- 2-Naphthol,
- Aldehyde
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