SnCl4 grafted on silica gel: an efficient catalyst for solvent-free synthesis of coumarins via the Pechmann condensation

SnCl4 grafted on silica gel: an efficient catalyst for solvent-free synthesis of coumarins via the Pechmann condensation
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硅胶接枝 SnCl4:通过 Pechmann 缩合无溶剂合成香豆素的高效催化剂

DOI:
10.1007/s13738-016-1025-5
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发表时间:
2017-03
影响因子:
2.4
通讯作者:
Li Yiping
Li Yiping
中科院分区:
化学4区
文献类型:
--
作者:
Sun Rui;Gao Yanjuan;Ma Ying;Yang Guangde;Li Yiping

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本文报道了一种在无溶剂条件下,以硅胶接枝SnCl_4为催化剂,通过Pechmann缩合反应合成取代香豆素类化合物的方法。该催化剂无腐蚀性,易于制备和从反应混合物中分离。该方法在产品收率、操作简单和绿色方面提供了一些优点。
A facile synthesis of substituted coumarins via Pechmann condensation catalyzed by SnCl4 grafted on silica gel is described, which was conducted under solvent-free condition in high yields. The catalyst is noncorrosive and can be easily prepared and separated from the reaction mixture. This methodology offers some advantages with regard to yield of products, simplicity in operation and green aspects.
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