Heterogeneous gold-catalysed synthesis of phenols
Heterogeneous gold-catalysed synthesis of phenols
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DOI：
10.1002/adsc.200606099
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发表时间：
2006-07-01
影响因子：
5.4
通讯作者：
Hashmi, A. Stephen K.
中科院分区：
文献类型：
--
作者：
Carrettin, Silvio;Blanco, M. Carmen;Hashmi, A. Stephen K.
纳米晶CeO2负载的金纳米粒子催化欧米伽-炔基呋喃异构化为苯酚。观察到了金的初始浸出，可通过焙烧将其降至最低。随后的运行表明，一旦所有可溶物种都被浸出，表面结合的阳离子黄金物种仍然活跃，可以达到高达391个成交量。这是多相金催化剂首次在金催化苯酚合成反应中表现出活性。
Nanoparticles of gold supported on nanocrystalline CeO2 catalyse the isomerisation of omega-alkynylfurans to phenols. Initial leaching of gold was observed, which could be minimised by calcining. Subsequent runs showed that once all soluble species had leached, the surface-bound, cationic gold species is still active and can reach turnover numbers of up to 391. This is the first time that a heterogeneous gold catalyst showed activity in the gold-catalysed phenol synthesis.