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One-pot and chemoselective synthesis of bis(4-hydroxycoumarin) derivatives catalyzed by nano silica chloride
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نویسنده
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Karimian Ramin ,Piri Farideh ,Safari Ali Asghar ,Davarpanah Javad
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منبع
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journal of nanostructure in chemistry - 2013 - دوره : 3 - شماره : 5 - صفحه:1 -6
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چکیده
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Nano silica chloride (nano sio2cl) has been found to be an efficient, chemoselective and recyclable catalyst for facile and simple condensation of 4-hydroxycoumarin with aromatic and heteroaromatic aldehydes into bis(4-hydroxycoumarin)methanes in dry ch2cl2. the products were obtained in high to excellent yields.
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کلیدواژه
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4-hydroxycoumarin; Knoevenagel condensation; Michael addition; bis(4-hydroxycoumarin)methane; Chemoselective; Recyclable; Nano silica chloride
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آدرس
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baqiyatallah university of medical sciences, Applied Biotechnology Research Center, ایران, zanjan university, Faculty of Science, Department of Chemistry, ایران, Islamic Azad University, Zanjan Branch, Faculty of Sciences, Department of Chemistry, ایران, baqiyatallah university of medical sciences, Applied Biotechnology Research Center, ایران
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Authors
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