Polyoxometalates based compounds for green synthesis of aldehydes and ketones
Polyoxometalates based compounds for green synthesis of aldehydes and ketones
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DOI：
10.1016/j.cclet.2022.107999
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发表时间：
2022-11
影响因子：
9.1
通讯作者：
Kejie Qin;Dejin Zang;Yongge Wei
中科院分区：
文献类型：
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作者：
Kejie Qin;Dejin Zang;Yongge Wei
多金属氧酸盐(POMS)化合物中的分子氧是原子经济性高的理想氧化剂，它的使用导致水的生产是唯一的副产品。以多胺为基础的化合物催化醇氧化制得醛和酮的催化方法已取得重大进展。它们替代了传统的以分子氧为终端氧化剂的高价碘催化体系。此外，POMS基催化剂还可以应用于具有不同能量模式的催化反应，如热催化、光催化和电催化。综述了多金属氧酸盐催化醇类选择氧化在热催化、电催化和光催化等方面的前沿研究进展。重点介绍了POM催化剂在性能、经济、环保等方面的三大优势。这些措施包括使用溶胶-凝胶和静电组装方法来增加反应表面积，减少贵金属的使用，以及提高POMS催化剂的稳定性。推进了醇类选择性氧化领域的发展。最后，提出了制备更高效和“绿色”催化剂的挑战。
Molecular oxygen within Polyoxometalates (POMs) based compounds are ideal oxidants with high atom economy and its use results in the production of water as the only byproduct. Significant progress has been made in the development of catalytic methods for aerobic alcohol oxidation to have aldehydes and ketones with POMs based compounds. They are alternative to the use of traditional hypervalent iodine catalyst systems which are with molecular oxygen as a terminal oxidant. Further, POMs based catalysts can be applied to catalytic reactions with different modes of energization such as thermocatalysis, photocatalysis and electrocatalysis. This review summarizes the frontier advances in polyoxometalates for catalytic alcohol selective oxidation in thermocatalytic, electrocatalytic, and photocatalytic applications. The three advantages of POM catalysts in terms of performance, economy, and environmental protection are highlighted. These include the use of sol-gel and electrostatic assembly methods to increase the reaction surface area, reduce the use of precious metals, and improve the stability of POMs catalysts. The field of selective alcohol oxidation is advanced. Finally, the challenges of preparing more efficient and “green” catalysts are presented.