2015年
Dual Lewis Acidic/Basic Pd0. 5Ru0. 5--Poly (N-vinyl-2-pyrrolidone) Alloyed Nanoparticle: Outstanding Catalytic Activity and Selectivity in Suzuki--Miyaura Cross-Coupling Reaction
ChemCatChem
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- 巻
- 7
- 号
- 23
- 開始ページ
- 3887
- 終了ページ
- 3894
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/cctc.201500758
- 出版者・発行元
- Wiley Online Library
This article anticipates the development of dual Lewis acidic/basic alloyed nanoparticle (NP) of poly(N-vinyl-2-pyrrolidone)stabilized Pd0.5Ru0.5 solid solution, revealing equivalent Pd delta+ and Ru-delta on the NP surface. This unsupported NP disclosed excellent catalytic efficiency with high turnover frequency, 15000 h(-1) in Suzuki-Miyaura cross-coupling under notable drop of both Pd loading (0.08 mol%) and time (5 min) in air, attributed for its bifunctional acidic/basic modes. The bifunctional modes exposed the most interesting new reaction mechanism ascribed by the inductive effects of p-substituents in arylboronic acid, accelerated reactivity by electron-withdrawing group, revealing an opposite reactivity trend relative to other Pd-based catalysts. Besides, the significant drops of Pd loading and reaction time impeded the metal leaching associated with no changes in NP surface composition/structure after the 3rd cycle (>99% efficiency), revealing a line-up for this NP in the environmental sustainability.
- リンク情報
- ID情報
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- DOI : 10.1002/cctc.201500758
- ISSN : 1867-3880
- eISSN : 1867-3899
- ORCIDのPut Code : 46225467
- Web of Science ID : WOS:000366837000013
- ORCIDで取得されたその他外部ID : a:1:{i:0;a:1:{s:0:"";s:0:"";}}