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Palladium nanoparticles supported on silica, alumina or titania: greener alternatives for Suzuki–Miyaura and other C–C coupling reactions
Environmental Chemistry Letters ( IF 15.0 ) Pub Date : 2019-07-04 , DOI: 10.1007/s10311-019-00899-5
Miguel Díaz-Sánchez , Diana Díaz-García , Sanjiv Prashar , Santiago Gómez-Ruiz

Most of the catalytic systems for C–C coupling reactions are based on homogeneous catalysts which are normally used only once and do not have a sustainable molecular economy, as they cannot be easily separated from the reaction products to be subsequently recycled and used in other catalytic cycles. The alternative use of heterogeneous catalytic systems, which follow better the principles of green chemistry, is of current environmental and industrial interest for C–C coupling reactions. In this context, although heterogeneous C–C coupling catalysis research has a long history focused on the development of palladium nanoparticles, this field still has several drawbacks to overcome and is an area in continuous evolution, which has developed novel systems based on reusable supported palladium nanoparticles or supported palladium complexes with improved catalytic properties. In this review, the recent research developments of novel hybrid nanostructured materials based on silica, titania and alumina as efficient supports for palladium complexes or palladium nanoparticles are revisited, with special regards to synthetic methodology, characterization methods and catalytic performance. The most relevant results concerning the improvement in the environmental impact of the use of palladium complexes or palladium nanoparticles supported onto silica, titania and alumina reported in the last 10 years on Suzuki–Miyaura and other C–C coupling reactions of interest are also described.



中文翻译:

负载在二氧化硅,氧化铝或二氧化钛上的钯纳米粒子:铃木-宫浦和其他CC偶联反应的绿色替代品

大多数用于C-C偶联反应的催化体系均基于均相催化剂,该均相催化剂通常仅使用一次,并且不具有可持续的分子经济性,因为它们不易从反应产物中分离出来,随后再循环再用于其他催化中周期。更好地遵循绿色化学原理的非均相催化体系的替代用途,对于C–C偶联反应具有当前的环境和工业意义。在这种情况下,尽管非均相C–C偶联催化研究长期以来一直专注于钯纳米颗粒的开发,但该领域仍然有许多缺点需要克服,并且是一个持续发展的领域,该公司已经开发了基于可重复使用的负载钯纳米颗粒或催化性能得到改善的负载钯络合物的新型系统。本文综述了基于二氧化硅,二氧化钛和氧化铝的新型杂化纳米结构材料作为钯配合物或钯纳米颗粒的有效载体的最新研究进展,特别关注合成方法,表征方法和催化性能。还描述了最近十年来有关铃木宫浦和其他感兴趣的C-C偶联反应的报道,这些结果与使用负载在二氧化硅,二氧化钛和氧化铝上的钯配合物或钯纳米粒子对环境的影响的改善有关。最近,人们对基于二氧化硅,二氧化钛和氧化铝的新型杂化纳米结构材料作为钯配合物或钯纳米颗粒的有效载体的研究进行了重新研究,特别关注合成方法,表征方法和催化性能。还描述了最近十年来有关铃木宫浦和其他感兴趣的C-C偶联反应的报道,这些结果与使用负载在二氧化硅,二氧化钛和氧化铝上的钯配合物或钯纳米粒子对环境的影响的改善有关。最近,人们对基于二氧化硅,二氧化钛和氧化铝的新型杂化纳米结构材料作为钯配合物或钯纳米颗粒的有效载体的研究进行了重新研究,特别关注合成方法,表征方法和催化性能。还描述了最近十年来有关铃木宫浦和其他感兴趣的C-C偶联反应的报道,这些结果与使用负载在二氧化硅,二氧化钛和氧化铝上的钯配合物或钯纳米粒子对环境的影响的改善有关。

更新日期:2019-07-04
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