| 以蛋壳为原料制备的纳米氧化钙用于高效催化合成吡喃并[4,3-b]吡喃简 |
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| 作者姓名： | Elaheh Mosaddegh Asadollah Hassankhani |
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| 作者单位： | Department of New Materials, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, PO Box 76315-117, Kerman, Iran |
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| 摘 要： |
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| 收稿时间： | 2013-10-11 |
Preparation and characterization of nano-CaO based on eggshell waste：Novel and green catalytic approach to highly efficient synthesis of pyrano[4,3-b]pyrans |
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| Elaheh Mosaddegh,Asadollah Hassankhani.Preparation and characterization of nano-CaO based on eggshell waste：Novel and green catalytic approach to highly efficient synthesis of pyrano[4,3-b]pyrans[J].Chinese Journal of Catalysis,2014,35(3):351-356. |
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| Authors: | Elaheh Mosaddegh Asadollah Hassankhani |
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| Institution: | Department of New Materials, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, PO Box 76315-117, Kerman, Iran |
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| Abstract: | Nano-CaO was prepared by calcination of ball-milled chicken eggshell waste. This novel, bioactive, heterogeneous catalyst, which had high catalytic activity and reusability, was used in the green synthesis of pyrano4,3-b]pyrans via condensation of various aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2H-pyran-2-one at 120℃ under solvent-free conditions. The reaction proceeded to completion within 5-45 min in 93%-98% yield. The nano-CaO was fully characterized by scanning electron microscopy, X-ray powder diffraction, infrared spectroscopy, X-ray fluorescence spectroscopy, and thermal gravimetric, surface area, and elemental analyses. |
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| Keywords: | Nano-calcium oxide Eggshell waste Biocatalyst Pyrano[4 3-b]pyrans Ball-mill |
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