| Silica supported sodium hydrogen sulfate （NaHSO4/SiO2）： A mild and efficient reusable catalyst for the synthesis of aryl-14-H-dibenzo [aj]xanthenes under solvent-flee conditions |
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| 作者姓名： | Shahnaz Rostamizadeh Nasrin Shadjou Ali Mohammad Amani Saeed Balalaie |
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| 作者单位： | Department of Chemistry, X. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran |
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| 基金项目： | We gratefully acknowledge the K.N. Toosi University of Technology Research Council for financial support. |
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| 摘 要： | A simple and efficient procedure for the preparation of aryl- 14-H-dibenzo [aj]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 （10-30min）, mild condition, simple work-up, and the use of a cheap and environmentally friendly catalyst with remarkable reusability.
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| 关 键 词： | 氧杂蒽 溶剂 二氧化硅 硫酸氢钠 |
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