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Applications of SBA-15 supported Pd metal catalysts as nanoreactors in C–C coupling reactions

机译:SBA-15负载的钯金属催化剂作为纳米反应器在C–C偶联反应中的应用

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Nanoreactors are material structures with engineered internal cavities which create exclusive confined nanoscale surroundings for chemical reactions. The cavities of mesoporous silica SBA-15 can be used as nanoreactors for incorporating catalytic species such as metal nanoparticles, complexes etc. Since SBA-15 silica has a neutral framework, organic functional groups and heteroatoms have been embedded by direct or post-synthesis approaches in order to modify their functionality. Palladium is the most used transition metal for C–C bond formations. Because of the great importance of C–C coupling reactions, this review article aims at providing a deep insight into the state of art in the field of the synthesis and the application of mesoporous SBA-15 silica-supported Pd catalysts in C–C coupling transformations. In most cases, synthesis and modification of the catalyst, time and yield of reactions, recyclability and leaching of the Pd species from the SBA-15 support are discussed to reveal the role of SBA-15 in C–C coupling reactions.
机译:纳米反应器是具有工程内部空腔的材料结构,可为化学反应创造专属的受限纳米级环境。介孔二氧化硅SBA-15的腔体可用作纳米反应器,以掺入催化物质,例如金属纳米粒子,络合物等。由于SBA-15二氧化硅具有中性骨架,因此通过直接或合成后的方法可以嵌入有机官能团和杂原子为了修改其功能。钯是用于C–C键形成的最常用过渡金属。由于C–C偶联反应非常重要,因此,本文旨在深入了解合成领域的最新技术以及介孔SBA-15二氧化硅负载的Pd催化剂在C–C偶联中的应用。转变。在大多数情况下,讨论了催化剂的合成和改性,反应的时间和收率,可回收性以及从SBA-15载体中浸出的Pd物种,以揭示SBA-15在C–C偶联反应中的作用。

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