Silver nanoparticle-catalyzed Diels-Alder cycloadditions of 2'-hydroxychalcones.

Silver nanoparticle-catalyzed Diels-Alder cycloadditions of 2'-hydroxychalcones.
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DOI:
10.1021/ja102482b
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发表时间:
2010-06-02
影响因子:
15
通讯作者:
Porco JA Jr
Porco JA Jr
中科院分区:
化学1区
文献类型:
--
作者:
Cong H;Becker CF;Elliott SJ;Grinstaff MW;Porco JA Jr

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Metal nanoparticles are currently being employed as catalysts for a number of classical chemical transformations. In contrast, identification of novel reactions of nanoparticles, especially towards the synthesis of complex natural products and derivatives, is highly underdeveloped and represents a bourgeoning area in chemical synthesis. Herein, we report silica-supported silver nanoparticles as solid, recyclable catalysts for Diels-Alder cycloadditions of 2′-hydroxychalcones and dienes in high yield and turnover number. The use of silver nanoparticle catalysts is further demonstrated by the total synthesis of the cytotoxic natural product panduratin A employing a highly electron-rich dienophile and Lewis acid-sensitive diene.
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