An Attempt at Enhancing the Regioselective Oxidation of Decane Using Catalysis with Reverse Micelles

An Attempt at Enhancing the Regioselective Oxidation of Decane Using Catalysis with Reverse Micelles
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利用反胶束催化增强癸烷的区域选择性氧化的尝试

DOI:
10.1007/s10562-011-0728-6
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发表时间:
2012
期刊:
影响因子:
2.8
通讯作者:
Pradham S
Pradham S
中科院分区:
化学4区
文献类型:
--
作者:
Pradham S

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摘要直链烷烃的区域选择性氧化产生末端氧化产物是催化的主要挑战。先前的许多方法已经表明,限制和封装可以提供一种实验上可行的前进方式。在此背景下,我们研究了包含气态氧、均质催化剂(偏钒酸铵)的系统的使用,该均质催化剂被限制在使用双(2-乙基己基)磺基琥珀酸酯在癸烷中形成的反胶束内的水溶液中。在低转化率和短反应时间下,我们表明该方法确实导致终端产物的选择性小幅提高,但毫不奇怪,表面活性剂比癸烷更容易被氧化,因此胶束催化剂系统的小积极效果是短暂的。图形摘要
AbstractThe regioselective oxidation of linear alkanes to give terminal oxidation products represents a major challenge for catalysis. A number of previous approaches have shown that confinement and encapsulation can offer an experimentally viable way forward. Against this background we have investigated the use of a system comprising gaseous oxygen, a homogenous catalyst (ammonium metavanadate) confined in an aqueous solution within reverse micelles formed in decane using bis(2-ethylhexyl)sulfosuccinate. At low conversion and at short reaction times we show that the approach does lead to a small enhancement in the selectivity to terminal products, but unsurprisingly the surfactant is more readily oxidised than decane and so the small positive effects of the micellar catalyst system are short-lived.Graphical Abstract
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