Terbium-organic framework as heterogeneous Lewis acid catalyst for β-aminoalcohol synthesis: Efficient, reusable and green catalytic method

2017 ◽  
Vol 31 (12) ◽  
pp. e3866 ◽  
Author(s):  
Meghdad Karimi ◽  
Taraneh Hajiashrafi ◽  
Akbar Heydari ◽  
Alireza Azhdari Tehrani
Keyword(s):  
Lewis Acid ◽  
Acid Catalyst ◽  
Catalytic Method ◽  
Lewis Acid Catalyst ◽  
Organic Framework

Aluminum based metal‐organic framework as water‐tolerant Lewis acid catalyst for selective dihydroxyacetone isomerization to lactic acid

ChemCatChem ◽  
2021 ◽  
Author(s):  
Mohammad Shahinur Rahaman ◽  
Sarttrawut Tulaphol ◽  
Kyle Mills ◽  
Ashten Molley ◽  
Md Anwar Hossain ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lewis Acid ◽  
Metal Organic Framework ◽  
Acid Catalyst ◽  
Metal Organic ◽  
Lewis Acid Catalyst ◽  
Organic Framework

scholarly journals Highly efficient Lewis acid catalytic art of tritylium ion at the node of tensile organic framework

2021 ◽  
Author(s):  
Shuai Zhao ◽  
Juhui Zhang ◽  
Yongchang Zhai ◽  
Xiaoqin Zou ◽  
Shaolei Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Organic Synthesis ◽  
Lewis Acid ◽  
Acid Catalyst ◽  
Highly Efficient ◽  
Long Time ◽  
Lewis Acid Catalyst ◽  
Organic Framework

Tritylium salts have been used as Lewis acid catalyst in organic synthesis for a long time. In this work, we found that the Lewis acid catalytic activity of tritylium ions...

Enhanced catalytic activity of a hierarchical porous metal–organic framework CuBTC

CrystEngComm ◽  
2015 ◽  
Vol 17 (37) ◽  
pp. 7124-7129 ◽  
Author(s):  
Zhigang Hu ◽  
Yongwu Peng ◽  
Kai Min Tan ◽  
Dan Zhao
Keyword(s):  
Catalytic Activity ◽  
Pore Size ◽  
Lewis Acid ◽  
Metal Organic Framework ◽  
Porous Metal ◽  
Acid Catalyst ◽  
Hierarchical Porous ◽  
Metal Organic ◽  
Lewis Acid Catalyst ◽  
Organic Framework

A hierarchical porous metal–organic framework CuBTC with mesopores of 3.9 nm pore size has been facilely obtained as Lewis acid catalyst.

scholarly journals A novel 3D terbium metal–organic framework as a heterogeneous Lewis acid catalyst for the cyanosilylation of aldehyde

RSC Advances ◽  
2021 ◽  
Vol 11 (55) ◽  
pp. 34779-34787
Author(s):  
Yuqian Liu ◽  
Peiran Zhao ◽  
Chunying Duan ◽  
Cheng He
Keyword(s):  
Lewis Acid ◽  
Metal Organic Framework ◽  
Organic Ligand ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Metal Organic ◽  
Lewis Acid Catalyst ◽  
Lanthanide Metal ◽  
Efficient Heterogeneous Catalyst ◽  
Organic Framework

A novel 3D lanthanide metal–organic framework synthesized from Tb ions and the rigid organic ligand H2sbdc could work as an efficient heterogeneous catalyst for the cyanosilylation of aromatic aldehydes.

An in-based 3D metal-organic framework as heterogeneous Lewis acid catalyst for multi-component Strecker reactions

2018 ◽  
Vol 479 ◽  
pp. 165-171 ◽  
Author(s):  
Juan Chai ◽  
Ping Zhang ◽  
Jianing Xu ◽  
Hui Qi ◽  
Jing Sun ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Metal Organic Framework ◽  
Acid Catalyst ◽  
Metal Organic ◽  
Lewis Acid Catalyst ◽  
Organic Framework

Computationally-Guided Investigation of Dual Amine/pi Lewis Acid Catalysts for Direct Additions of Aldehydes and Ketones to Unactivated Alkenes and Alkynes

2020 ◽  
Author(s):  
Eric Greve ◽  
Jacob D. Porter ◽  
Chris Dockendorff
Keyword(s):  
Lewis Acid ◽  
Density Functional ◽  
Acid Catalyst ◽  
Metal Catalyst ◽  
Catalyst Poisoning ◽  
Lewis Acid Catalysts ◽  
Metal Ligands ◽  
Aldehydes And Ketones ◽  
Lewis Acid Catalyst ◽  
Catalyst Systems

Dual amine/pi Lewis acid catalyst systems have been reported for intramolecular direct additions of aldehydes/ketones to unactivated alkynes and occasionally alkenes, but related intermolecular reactions are rare and not presently of significant synthetic utility, likely due to undesired coordination of enamine intermediates to the metal catalyst. We reasoned that bulky metal ligands and bulky amine catalysts could minimize catalyst poisoning and could facilitate certain examples of direct intermolecular additions of aldehyde/ketones to alkenes/alkynes. Density Functional Theory (DFT) calculations were performed that suggested that PyBOX-Pt(II) catalysts for alkene/alkyne activation could be combined with MacMillan’s imidazolidinone organocatalyst for aldehyde/ketone activation to facilitate desirable C-C bond formations, and certain reactions were calculated to be more exergonic than catalyst poisoning pathways. As calculated, preformed enamines generated from the MacMillan imidazolidinone did not displace ethylene from a biscationic (<i>t</i>-Bu)PyBOX-Pt<sup>2+</sup>complex, but neither were the desired C-C bond formations observed under several different conditions.

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