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Mechanistic Study on Allylic Arylation in Water with Linear Polystyrene-Stabilized Pd and PdO Nanoparticles
ACS Omega ( IF 3.7 ) Pub Date : 2019-09-13 , DOI: 10.1021/acsomega.9b02722
Atsushi Ohtaka 1 , Misa Kawase 1 , Akira Usami 1 , Shiho Fukui 1 , Mana Yamashita 1 , Kazuki Yamaguchi 1 , Akira Sakon 1 , Tomoya Shiraki 1 , Taiki Ishida 1 , Soma Nagata 1 , Yuji Kimura 1 , Go Hamasaka 2 , Yasuhiro Uozumi 2 , Tsutomu Shinagawa 3 , Osamu Shimomura 1 , Ryôki Nomura 1
Affiliation  

The catalytic cycle of allylic arylation in water catalyzed by linear polystyrene-stabilized Pd or PdO nanoparticles (PS-PdNPs or PS-PdONPs) was investigated. Stoichiometric stepwise reactions indicated that the reaction did not proceed stepwise on the surface of the catalyst. In the case of the reaction with PS-PdNPs, the leached Pd species is the catalytically active species and the reaction takes place through a similar reaction pathway accepted in the case of a complex catalyst. In contrast, allylic arylation using PS-PdONPs as a catalyst occurs via a Pd(II) catalytic cycle.

中文翻译:

线性聚苯乙烯稳定的 Pd 和 PdO 纳米颗粒在水中烯丙基芳基化的机理研究

研究了线性聚苯乙烯稳定的 Pd 或 PdO 纳米粒子(PS-PdNPs 或 PS-PdONPs)催化的水中烯丙基芳基化的催化循环。化学计量逐步反应表明反应不是在催化剂表面逐步进行。在与 PS-PdNP 反应的情况下,浸出的 Pd 物质是催化活性物质,并且反应通过在复杂催化剂的情况下接受的类似反应途径发生。相比之下,使用 PS-PdONP 作为催化剂的烯丙基芳基化是通过 Pd (II)催化循环发生的。
更新日期:2019-09-25
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