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引用次数: 0
摘要
深共晶溶剂（DES）一直被认为是各种有机转化的有用催化剂和反应介质。在此，我们报告了新型深共晶溶剂表面活性剂（DES 表面活性剂）在选择性快速氧化醇类为醛类过程中的催化应用。使用廉价的氯化铁（FeCl3）和苄基十六烷基二甲基氯化铵以简单的方法制备了易于获得的 DES 表面活性剂（FeCl3/BHDC）。合成的 FeCl3/BHDC 采用多种技术进行表征，包括傅立叶变换红外光谱、热重分析、扫描电子显微镜和能量色散 X 射线光谱，以确定其结构。研究了 FeCl3/BHDC 在将各种醇选择性氧化为相应醛衍生物过程中的催化活性。结果表明，该反应可在 2 至 15 分钟的极短反应时间内完成，同时获得良好甚至极佳的产率。在催化 DES 表面活性剂存在的条件下，利用过氧化氢将各种醇衍生物选择性氧化为相应的醛和酮，该方案提供了一种简便的策略和出色的效率。
Selective and fast oxidation of alcohol to aldehyde using novel catalytic deep eutectic solvent surfactants.
Deep eutectic solvent (DES) has been considered as a useful catalyst and reaction medium for various organic transformations. Herein, we report the catalytic application of novel deep eutectic solvent- based surfactant (DES surfactant) for the selective and fast oxidation of alcohols to aldehydes. The readily accessible DES surfactants (FeCl3/BHDC) was prepared using inexpensive ferric chloride (FeCl3) and benzyl hexadecyl dimethyl ammonium chloride in a simple manner. The synthesized FeCl3/BHDC was characterized using various techniques, including, FTIR spectroscopy, thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), and energy- dispersive X-ray spectroscopy (EDS) to determine its structure. The catalytic activity of FeCl3/BHDC in the selective oxidation of various alcohols to corresponding aldehyde derivative was investigated. The results showed the reaction could be completed within very short reaction times ranging from 2 to 15 min, while achieving good to excellent yields. This protocol offers a facile strategy and excellent efficiency in selectively oxidizing various alcohol derivatives to their respective aldehydes and ketones, utilizing hydrogen peroxide in the presence of catalytic DES surfactant.
期刊介绍：
Frontiers in Chemistry is a high visiblity and quality journal, publishing rigorously peer-reviewed research across the chemical sciences. Field Chief Editor Steve Suib at the University of Connecticut is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to academics, industry leaders and the public worldwide.
Chemistry is a branch of science that is linked to all other main fields of research. The omnipresence of Chemistry is apparent in our everyday lives from the electronic devices that we all use to communicate, to foods we eat, to our health and well-being, to the different forms of energy that we use. While there are many subtopics and specialties of Chemistry, the fundamental link in all these areas is how atoms, ions, and molecules come together and come apart in what some have come to call the “dance of life”.
All specialty sections of Frontiers in Chemistry are open-access with the goal of publishing outstanding research publications, review articles, commentaries, and ideas about various aspects of Chemistry. The past forms of publication often have specific subdisciplines, most commonly of analytical, inorganic, organic and physical chemistries, but these days those lines and boxes are quite blurry and the silos of those disciplines appear to be eroding. Chemistry is important to both fundamental and applied areas of research and manufacturing, and indeed the outlines of academic versus industrial research are also often artificial. Collaborative research across all specialty areas of Chemistry is highly encouraged and supported as we move forward. These are exciting times and the field of Chemistry is an important and significant contributor to our collective knowledge.
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