Immobilized Palladium Nanoparticles on Zirconium Carboxy-Aminophosphonates Nanosheets as an Efficient Recoverable Heterogeneous Catalyst for Suzuki-Miyaura and Heck Coupling

被引：34

作者：

Kozell, Vadym ^{[1
]}

Giannoni, Tommaso ^{[1
]}

Nocchetti, Morena ^{[2
]}

Vivani, Riccardo ^{[2
]}

Piermatti, Oriana ^{[1
]}

Vaccaro, Luigi ^{[1
]}

机构：

[1] Univ Perugia, CEMIN, Dipartimento Chim Biol & Biotecnol, Via Elce Sotto 8, I-06123 Perugia, Italy

[2] Univ Perugia, Dipartimento Sci Farmaceut, Via Liceo 1, I-06123 Perugia, Italy

来源：

CATALYSTS | 2017年 / 7卷 / 06期

关键词：

zirconium phosphonates; nanosheets; palladium nanoparticles; heterogeneous catalysis; Heck reaction; Suzuki-Miyaura coupling; ASYMMETRIC ALDOL ADDITION; METAL-ORGANIC FRAMEWORKS; SUPPORTED L-PROLINE; PD NANOPARTICLES; REUSABLE CATALYST; IN-SITU; GRAPHENE NANOSHEETS; PHOSPHATE; SILICA; FLOW;

D O I：

10.3390/catal7060186

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zirconium phosphate glycine diphosphonate nanosheets (ZPGly) have been used as support for the preparation of solid palladium nanoparticles, namely Pd@ZPGly. Thanks to the presence of carboxy-aminophosponate groups on the layer surface, ZPGly-based materials were able to stabilize a high amount of palladium (up to 22 wt %) also minimizing the amount of metal leached in the final products of representative important cross-coupling processes selected for proving the catalysts' efficiency. The catalytic systems have been fully characterized and used in low amounts (0.1 mol %) in the Suzuki-Miyaura and Heck cross-couplings. Moreover, the protocols were optimized for the use of recoverable azeotropic mixtures (aq. EtOH 96% or aq. CH3CN 84%, respectively) and in the flow procedure allowing one to isolate the final pure products, without any purification step, with very low residual palladium content and with a very low waste production.

引用

页数：20

共 54 条

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