Insights into oxygen activation on metal clusters for catalyst design

2021 ◽  
Author(s):  
LiXin Chen ◽  
Zi Wen ◽  
Zhi Wen Chen ◽  
Qing Jiang ◽  
Chandra Veer Singh
Keyword(s):  
Metal Clusters ◽  
Aerobic Oxidation ◽  
Oxygen Activation ◽  
Vital Role ◽  
Catalyst Design ◽  
Activation Mechanism ◽  
Oxidation Reactions

The activation mechanism of O2 molecules plays a vital role in the development of catalysts for aerobic oxidation reactions. To gain insights into the activation mechanism of O2, the square...

Oxidase Catalysis via an Aerobically Generated Dess-Martin Periodinane Analogue

2018 ◽  
Author(s):  
Asim Maity ◽  
Sung-Min Hyun ◽  
Alan Wortman ◽  
David Powers
Keyword(s):  
Chemical Synthesis ◽  
Aerobic Oxidation ◽  
Substrate Oxidation ◽  
Oxidation Catalysis ◽  
Hypervalent Iodine ◽  
Oxidation Reactions ◽  
Broad Array ◽  
Oxidation Chemistry ◽  
Reactive Oxidants

<p>Hypervalent iodine(V) reagents, such as Dess-Martin periodinane (DMP) and 2-iodoxybenzoic acid (IBX), are broadly useful oxidants in chemical synthesis. Development of strategies to access these reagents from O2 would immediately enable use of O2 as a terminal oxidant in a broad array of substrate oxidation reactions. Recently we disclosed the aerobic synthesis of I(III) reagents by intercepting reactive oxidants generated during aldehyde autoxidation. Here, we couple aerobic oxidation of iodobenzenes with disproportionation of the initially generated I(III) compounds to generate I(V) reagents. The aerobically generated I(V) reagents exhibit substrate oxidation chemistry analogous to that of DMP. Further, the developed aerobic generation of I(V) has enabled the first application of I(V) intermediates in aerobic oxidation catalysis.</p>

scholarly journals Cobalt-Based Metal Organic Frameworks as Solids Catalysts for Oxidation Reactions

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 95
Author(s):  
Amarajothi Dhakshinamoorthy ◽  
Eva Montero Lanzuela ◽  
Sergio Navalon ◽  
Hermenegildo Garcia
Keyword(s):  
Aerobic Oxidation ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Acid Sites ◽  
Crystalline Lattice ◽  
Oxidation Reactions ◽  
Solid Catalysts ◽  
Long Term Stability ◽  
Metal Organic

Metal organic frameworks (MOFs) are porous crystalline solids whose frameworks are constituted by metal ions/nodes with rigid organic linkers leading to the formation of materials having high surface area and pore volume. One of the unique features of MOFs is the presence of coordinatively unsaturated metal sites in their crystalline lattice that can act as Lewis acid sites promoting organic transformations, including aerobic oxidation reactions of various substrates such as hydrocarbons, alcohols, and sulfides. This review article summarizes the existing Co-based MOFs for oxidation reactions organized according to the nature of substrates like hydrocarbon, alcohol, olefin, and water. Both aerobic conditions and peroxide oxidants are discussed. Emphasis is placed on comparing the advantages of using MOFs as solid catalysts with respect to homogeneous salts in terms of product selectivity and long-term stability. The final section provides our view on future developments in this field.

scholarly journals Water-assisted oxygen activation during selective oxidation reactions

2016 ◽  
Vol 13 ◽  
pp. 100-108 ◽  
Author(s):  
Hung-Vu Tran ◽  
Hieu A Doan ◽  
Bert D Chandler ◽  
Lars C Grabow
Keyword(s):  
Selective Oxidation ◽  
Oxygen Activation ◽  
Oxidation Reactions ◽  
Selective Oxidation Reactions

scholarly journals Benzothiadiazole Conjugated Metalorganic Framework for Organic Aerobic Oxidation Reactions under Visible Light

2017 ◽  
Vol 75 (1) ◽  
pp. 80 ◽  
Author(s):  
Wen-Qiang Zhang ◽  
Qiu-Yan Li ◽  
Xinyu Yang ◽  
Zheng Ma ◽  
Huanhuan Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Aerobic Oxidation ◽  
Oxidation Reactions ◽  
Metalorganic Framework

scholarly journals Oxygen activation and catalytic aerobic oxidation by Mo(iv)/(vi) complexes with functionalized iminophenolate ligands

2016 ◽  
Vol 45 (37) ◽  
pp. 14549-14560 ◽  
Author(s):  
Niklas Zwettler ◽  
Martina E. Judmaier ◽  
Lara Strohmeier ◽  
Ferdinand Belaj ◽  
Nadia C. Mösch-Zanetti
Keyword(s):  
Oxygen Atom ◽  
Aerobic Oxidation ◽  
Oxygen Activation ◽  
Atom Transfer ◽  
Oxygen Atom Transfer

Dioxidomolybdenum(vi) complexes coordinated by functionalized bidentate iminophenolate ligands undergo oxygen atom transfer to PMe3 to yield molybdenum(iv) oxido phosphino species that readily react with molecular O2 to form molybdenum(vi) oxido peroxido complexes.

Mesoporous Silica Nanoparticles Supported Atomically Precise Palladium Nanoclusters Catalyzed Aerobic Oxidation of Alcohols in Water

2021 ◽  
Vol 43 (2) ◽  
pp. 193-193
Author(s):  
Taiping Gao Taiping Gao ◽  
Xiaolin Ma Xiaolin Ma ◽  
Xin Li Xin Li ◽  
Qiang Xu and Yubao Wang Qiang Xu and Yubao Wang
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Aerobic Oxidation ◽  
Alcohol Oxidation ◽  
High Yield ◽  
Impregnation Method ◽  
Oxidation Reactions ◽  
Clean System ◽  
Aqueous Conditions

The first mesoporous silica nanoparticles (MSNs) supported atomically precise palladium nanoclusters catalyzed alcohol oxidation reactions in water have been achieved. The catalysts was synthesized with simple impregnation method and well characterized by TEM, FT-IR, XPS anddiffuse reflectance optical spectrum and the results proved that the Pd nanoclustersimmobilized into the pores of MSNs.The as-prepared catalyst show excellent activity for the alcohol oxidation reactions with high yield under extremely mild aqueous conditions utilizes 1 atmosphere of molecular oxygen as sole oxidant. The features of clean system, gram-scale oxidation and easy recovery catalyst make this method cost effectively and environmentally benign.

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