| H_6P_2W_（18）O_（62）á18H_2O： A green and reusable catalyst for one-pot synthesis of pyrano[4,3-b]pyrans in water |
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| 作者姓名： | Deepika Rajguru Balwant S. Keshwal Shubha Jain |
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| 作者单位： | School of Studies in Chemistry, Vikram University, Ujjain, Madhya Pradesh 456010, India |
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| 基金项目： | Acknowledgments We thank the Director, SAIF, Panjab University, Chandigarh for NMR and MS spectral data. We are also grateful to Dr. Aman Deep Acharya for his valuable scientific suggestions. |
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| 摘 要： | A convenient,effcient and environmentally benign procedure has been developed for the synthesis of pyrano4,3-b]pyran derivatives via a one-pot,three-component reaction of 4-hydroxy-6-methylpyran-2-one,aldehydes and malononitrile in water using H6P2W18O62á18H2O as catalyst.Reusability of the catalyst and reaction media,short reaction times and easy isolation of products are some added advantages of the present methodology.
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| 关 键 词： | 吡喃衍生物 一锅法合成 催化剂 可重复使用 水 反应介质 环境友好 反应时间 |
| 收稿时间： | 28 March 2013 |
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