ChemInform Abstract: Immobilization of Pd Nanoparticles with Functional Ionic Liquid Grafted onto Cross-Linked Polymer for Solvent-Free Heck Reaction.

ChemInform ◽  
2010 ◽  
Vol 41 (20) ◽  
Author(s):  
Gang Liu ◽  
Minqiang Hou ◽  
Jiyuan Song ◽  
Tao Jiang ◽  
Honglei Fan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Solvent Free

Pd Nanoparticles in the Thermoregulated Ionic Liquid and Organic Biphasic System: An Efficient and Recyclable Catalyst for Heck Reaction

2012 ◽  
Vol 143 (2) ◽  
pp. 200-205 ◽  
Author(s):  
Yan Zeng ◽  
Yanhua Wang ◽  
Yicheng Xu ◽  
Ying Song ◽  
Jingyang Jiang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Recyclable Catalyst ◽  
Biphasic System

ChemInform Abstract: Pd Nanoparticles Catalyzed Ligand-Free Heck Reaction in Ionic Liquid Microemulsion.

ChemInform ◽  
2010 ◽  
Vol 41 (3) ◽  
Author(s):  
Guoping Zhang ◽  
Haihui Zhou ◽  
Jiaqi Hu ◽  
Mei Liu ◽  
Yafei Kuang
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Ligand Free

Pd nanoparticles catalyzed ligand-free Heck reaction in ionic liquid microemulsion

2009 ◽  
Vol 11 (9) ◽  
pp. 1428 ◽  
Author(s):  
Guoping Zhang ◽  
Haihui Zhou ◽  
Jiaqi Hu ◽  
Mei Liu ◽  
Yafei Kuang
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Ligand Free

The Role of Pd Nanoparticles in Ionic Liquid in the Heck Reaction

2005 ◽  
Vol 127 (10) ◽  
pp. 3298-3299 ◽  
Author(s):  
Claudia C. Cassol ◽  
Alexandre P. Umpierre ◽  
Giovanna Machado ◽  
Silvana I. Wolke ◽  
Jairton Dupont
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles

scholarly journals Tuned Bis-Layered Supported Ionic Liquid Catalyst (SILCA) for Competitive Activity in the Heck Reaction of Iodobenzene and Butyl Acrylate

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 963
Author(s):  
Nemanja Vucetic ◽  
Pasi Virtanen ◽  
Ayat Nuri ◽  
Andrey Shchukarev ◽  
Jyri-Pekka Mikkola ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Reaction Conditions ◽  
Efficient Catalyst ◽  
Catalyst Synthesis ◽  
Supported Ionic Liquid ◽  
Ft Ir ◽  
The Stability ◽  
Eventual Loss

A thorough experimental optimization of supported ionic liquid catalyst (SILCA) was performed in order to obtain a stable and efficient catalyst for the Heck reaction. Out of fifteen proposed structures, propyl imidazolium bromide-tetramethylguanidinium pentanoate modified SiO2 loaded with PdCl2 appeared to be the most stable and to have a good activity in the reaction between butylacrylate and iodobezene, resulting in a complete conversion in 40 min at 100 °C, in four consecutive experiments. This study elucidated on the stability of the catalytic system with an ionic liquid layer during the catalyst synthesis but also under reaction conditions. In the bis-layered catalyst, the imidazolium moiety as a part of internal layer, brought rigidity to the structure, while in external layer pentanoic acid gave sufficiently acidic carboxylic group capable to coordinate 1,1,3,3-tetramethylguanidine (TMG) and thus, allow good dispersion of Pd nanoparticles. The catalyst was characterized by means of XPS, FT-IR, TEM, ICP-OES, ζ-potential, EDX, TGA, and 13C NMR. The release and catch mechanism was observed, whereas Pd re-deposition can be hindered by catalyst poisoning and eventual loss of palladium.

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