Poly(ethylene glycol)-Supported TEMPO: An Efficient, Recoverable Metal-Free Catalyst for the Selective Oxidation of Alcohols
作者:Gianluca Pozzi、Marco Cavazzini、Silvio Quici、Maurizio Benaglia、Gianmaria Dell'Anna
DOI:10.1021/ol036398w
日期:2004.2.1
[structure: see text] Poly(ethylene glycol)-supported TEMPO (PEG-TEMPO) has been prepared, and its catalytic activity in the chemoselective oxidation of alcohols with stoichiometric amounts of organic or inorganic oxidants has been investigated. The new metal-free catalyst exhibits high activity and is easily removed from the reaction mixture by filtration. Recycling experiments showed that PEG-TEMPO
[结构:见正文]制备了聚乙二醇负载的TEMPO(PEG-TEMPO),并研究了其在化学计量的有机或无机氧化剂对醇的化学选择氧化中的催化活性。新型的无金属催化剂表现出很高的活性,很容易通过过滤从反应混合物中除去。循环实验表明,PEG-TEMPO最多可重复使用六次,而不会损失催化活性。