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

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

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.

In situ preparation of graphene oxide supported Pd nanoparticles in an ionic liquid and the long-term catalytic stability for the Heck reaction

2015 ◽  
Vol 3 (32) ◽  
pp. 16583-16589 ◽  
Author(s):  
Dan Liu ◽  
Changjun Zhang ◽  
Fei Wang ◽  
Zhongyuan Huang ◽  
Ningshuang Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Heck Reaction ◽  
High Efficiency ◽  
Organic Cation ◽  
Pd Nanoparticles ◽  
In Situ Preparation ◽  
Catalytic Stability ◽  
Supported Pd

The double protection of the organic cation [BMIM]+ and RGO can reduce the collision and agglomeration of Pd nanoparticles. Hence, the in situ prepared Pd/RGO can exhibit high efficiency and long-term catalytic stability for the Heck reaction in the ionic liquid.

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

Triethanolamine‐Mediated Magnetically Separable Fe 3 O 4 −Pd Nanoparticles Catalyzed Heck Reaction under Ligand‐Free Conditions

2021 ◽  
Vol 6 (31) ◽  
pp. 7944-7949
Author(s):  
Chandan Kumar Pal ◽  
Ashis Kumar Jena ◽  
Dibya Das ◽  
Swagatika Sahu ◽  
Rajesh Kumar Singh
Keyword(s):  
Heck Reaction ◽  
Pd Nanoparticles ◽  
Ligand Free ◽  
Magnetically Separable

Probing the microscopic structural organization of neat ionic liquids (ILs) and ionic liquid-based gels through resonance energy transfer (RET) studies

2017 ◽  
Vol 19 (34) ◽  
pp. 23194-23203 ◽  
Author(s):  
Debashis Majhi ◽  
Moloy Sarkar
Keyword(s):  
Ionic Liquid ◽  
Energy Transfer ◽  
Ionic Liquids ◽  
Structural Organization ◽  
Rhodamine 6G ◽  
Resonance Energy Transfer ◽  
Resonance Energy

With the aim to understand the role of the ionic constituents of ionic liquids (ILs) in their structural organization, resonance energy transfer (RET) studies between ionic liquids (donor) and rhodamine 6G (acceptor) have been investigated.

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