Ni Nanoparticles Stabilized by Poly(Ionic Liquids) as Chemoselective and Magnetically Recoverable Catalysts for Transfer Hydrogenation Reactions of Carbonyl Compounds

被引：31

作者：

Vijayakrishna, Kari ^{[1
]}

Charan, K. T. Prabhu ^{[1
]}

Manojkumar, Kasina ^{[1
]}

Venkatesh, Sadhana ^{[1
]}

Pothanagandhi, Nellepalli ^{[1
]}

Sivaramakrishna, Akella ^{[1
]}

Mayuri, Pinapeddavari ^{[2
]}

Kumar, Annamalai Senthil ^{[2
]}

Sreedhar, B. ^{[3
]}

机构：

[1] VIT Univ, Div Organ Chem, Sch Adv Sci, Vellore 632014, Tamil Nadu, India

[2] VIT Univ, Environm & Analyt Chem Div, Sch Adv Sci, Vellore 632014, Tamil Nadu, India

[3] CSIR, Indian Inst Chem Technol, Inorgan & Phys Chem Div, Hyderabad 500607, Andhra Pradesh, India

来源：

CHEMCATCHEM | 2016年 / 8卷 / 06期

关键词：

chemoselectivity; imidazolium; nickel nanoparticles; poly(ionic liquids); stabilization; NICKEL NANOPARTICLES; TRANSFER REDUCTION; OXIDE; OXIDATION; METAL; NITRO;

D O I：

10.1002/cctc.201501313

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：

Imidazolium-based poly(ionic liquids) with hydroxide as the counter anion were employed to prepare stable aqueous dispersion of Ni nanoparticles. The synthesized poly(ionic liquid) stabilized Ni nanoparticles (PIL-Ni-NPs) were characterized by thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), powder XRD, TEM, Brunauer-Emmett-Teller (BET) surface area measurements, X-ray photoelectron spectroscopy (XPS), EPR, and UV/Vis spectroscopy. The PIL-Ni-NPs possess good catalytic activity towards transfer hydrogenation (TH) reactions of carbonyl compounds to their alcohol derivatives, in isopropanol at 80 degrees C in the absence of any additional base. This catalyst system chemoselectively reduces only the carbonyl group of , unsaturated carbonyl compounds. The magnetically separable PIL-Ni-NPs were recycled and reused for further TH reactions.

引用

页码：1139 / 1145

页数：7

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