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Mu Y, Chen B, Zhang H, Fei M, Liu T, Mehta N, Wang DZ, Miller AJM, Diaconescu PL, Wang D. Highly Selective Electrochemical Baeyer-Villiger Oxidation through Oxygen Atom Transfer from Water. J Am Chem Soc 2024; 146:13438-13444. [PMID: 38687695 DOI: 10.1021/jacs.4c02601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
The Baeyer-Villiger oxidation of ketones is a crucial oxygen atom transfer (OAT) process used for ester production. Traditionally, Baeyer-Villiger oxidation is accomplished by thermally oxidizing the OAT from stoichiometric peroxides, which are often difficult to handle. Electrochemical methods hold promise for breaking the limitation of using water as the oxygen atom source. Nevertheless, existing demonstrations of electrochemical Baeyer-Villiger oxidation face the challenges of low selectivity. We report in this study a strategy to overcome this challenge. By employing a well-known water oxidation catalyst, Fe2O3, we achieved nearly perfect selectivity for the electrochemical Baeyer-Villiger oxidation of cyclohexanone. Mechanistic studies suggest that it is essential to produce surface hydroperoxo intermediates (M-OOH, where M represents a metal center) that promote the nucleophilic attack on ketone substrates. By confining the reactions to the catalyst surfaces, competing reactions (e.g., dehydrogenation, carboxylic acid cation rearrangements, and hydroxylation) are greatly limited, thereby offering high selectivity. The surface-initiated nature of the reaction is confirmed by kinetic studies and spectroelectrochemical characterizations. This discovery adds nucleophilic oxidation to the toolbox of electrochemical organic synthesis.
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Affiliation(s)
- Yu Mu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Boqiang Chen
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Hongna Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Muchun Fei
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Tianying Liu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Neal Mehta
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - David Z Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Alexander J M Miller
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Paula L Diaconescu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Dunwei Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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Poursaitidis ET, Gkizis PL, Triandafillidi I, Kokotos CG. Organocatalytic activation of hydrogen peroxide: towards green and sustainable oxidations. Chem Sci 2024; 15:1177-1203. [PMID: 38274062 PMCID: PMC10806817 DOI: 10.1039/d3sc05618j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 12/15/2023] [Indexed: 01/27/2024] Open
Abstract
The advent of organocatalysis provided an additional option in every researcher's arsenal, towards the development of elegant and sustainable protocols for various organic transformations. Oxidation reactions are considered to be key in organic synthesis since oxygenated functionalities appear in many natural products. Hydrogen peroxide is categorized as a green oxidant, since its only by-product is water, offering novel opportunities for the development of green and sustainable protocols. In this review article, we intend to present recent developments in the field of the organocatalytic activation of hydrogen peroxide, providing useful insight into the applied oxidative protocols. At the same time, we will present some interesting mechanistic studies, providing information on the oxygen transfer processes.
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Affiliation(s)
- Efthymios T Poursaitidis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Petros L Gkizis
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Ierasia Triandafillidi
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens Panepistimiopolis 15771 Athens Greece
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3
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Pembere AMS, Louis H, Wu H. Mechanism and dynamics of Baeyer-Villiger oxidation of furfural to maleic anhydride in presence of H 2O 2 and Au clusters. J Mol Model 2023; 29:359. [PMID: 37924368 DOI: 10.1007/s00894-023-05764-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/23/2023] [Indexed: 11/06/2023]
Abstract
CONTEXT The increasing demand for fuels and chemicals in the world has prompted the exploration of various forms of renewable energy resources. Using C5-based furfural as the platform to replace the fossil energy resources is greatly attractive because of its abundance and environmental friendliness. Here we study the activity, selectivity, and possible reaction pathways for the Baeyer-Villiger oxidation of furfural over small Au clusters using hydrogen peroxide as oxidant. Furfural reacts with hydrogen peroxide in the presence of the catalysts with 93% selectivity towards maleic anhydride. Natural population analysis, frontier molecular orbital analysis, and spectroscopic analysis are used to illustrate the interaction mechanism between C5H4O2, H2O2, and Au. Reaction pathways leading to the formation of maleic anhydride are also explored. The reaction of C5H4O2 with H2O2 in the absence of a catalyst bears a relatively high transition state energy barrier of 2.98 eV for the first step involving absorption of H atom of H2O2 on the -OH group of C5H4O2. This is in agreement with the blank experiment where there were rare oxidation products observed in the absence of the metal cluster catalysts. On the other hand, transition state energies in the presence of the Au metal clusters are lower and the most feasible pathway is where the substrate and H2O2 co-bind on the Au catalyst and H2O2 molecule transfers an oxygen to the substrate, leading to the cleavage of the O-O bond. METHODS DFT calculations were done with B3PW91 functional. 6-311G(df, p) basis set was used for C, O, and H and aug-cc-pVDZ-PP was used for gold atoms. Gaussian 09 software was used for the calculations. Multiwfn 3.7 dev was used for the quantum theory of atoms-in-molecules (QTAIM) investigations.
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Affiliation(s)
- Anthony M S Pembere
- Department of Physical Sciences, Jaramogi Oginga Odinga University of Science and Technology, P.O Box 210, Bondo, 40601, Kenya.
| | - Hitler Louis
- Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar, 1115, Nigeria
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education,, Kelambakkam, Tamil Nadu 603103, India
| | - Haiming Wu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
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Ma J, Wu Y, Pan Q, Wang X, Li X, Li Q, Xu X, Yao Y, Sun Y. The Al-Containing Silicates Modified with Organic Ligands and SnO 2 Nanoparticles for Catalytic Baeyer-Villiger Oxidation and Aerobic Carboxylation of Carbonyl Compounds. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:433. [PMID: 36770394 PMCID: PMC9919301 DOI: 10.3390/nano13030433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/14/2023] [Accepted: 01/15/2023] [Indexed: 06/18/2023]
Abstract
The Baeyer-Villiger Oxidation (BVO) of ketones and aldehydes produce lactones and formates, while aerobic carboxylation of aldehydes manufactures carboxylic acids, both having high added value. This work prepared a series of Al-containing silicates modified with organic ligands and SnO2 nanoparticles, which were then employed as catalyst in BVO and carboxylation. Characterizations revealed the morphology of the synthesized catalyst was changed from micron-sized thin sheets to smaller blocks, and then to uniform nanoparticles (size of 50 nm) having the doped SnO2 nanoparticles with a size of 29 nm. All catalysts showed high BET surface areas featuring silt-like mesopores. In determining the priority of BVO and carboxylation, an influence evaluation of the parameters showed the order to be substrate > oxidant > solvent > catalyst. Cyclic aliphatic ketones were suitable for BVO, but linear aliphatic and aromatic aldehydes for carboxylation. Coordination of (S)-binaphthol or doping of Sn into catalyst showed little influence on BVO under m-CPBA, but the Sn-doped catalyst largely increased BVO under (NH4)2S2O8 and H2O2. Calculations revealed that the catalyst containing both Al and Sn could give BVO intermediates lower energies than the Sn-beta zeolite model. The present system exhibited merits including wider substrate scope, innocuous catalytic metal, greener oxidant, as well as lower catalyst cost.
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Affiliation(s)
- Jinyi Ma
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
| | - Yong Wu
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Qin Pan
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Xiangdong Wang
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Xiaoyong Li
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Qiujuan Li
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Xiaoshuai Xu
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Yuan Yao
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
| | - Yang Sun
- Department of Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China
- Xixian New District Xingyi Advanced Materials Technology Co., Ltd., Room 1046, 1st Floor, Hongdelou, Building No. 20, Science and Technology Innovation Port, Western China, Fengxi New City, Xixian New District, Xi’an 712000, China
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Le Viet LH, Nemoto H, Tamura M, Matsuda T. Asymmetric synthesis of sulfoxides by novel baeyer-Villiger monooxygenase from Fusarium. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Li J, Liu F, Liu Y, Shen Y, Li Z. Functionalizable and Chemically Recyclable Thermoplastics from Chemoselective Ring-Opening Polymerization of Bio-renewable Bifunctional α-Methylene-δ-valerolactone. Angew Chem Int Ed Engl 2022; 61:e202207105. [PMID: 35674460 DOI: 10.1002/anie.202207105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 01/13/2023]
Abstract
It is a highly attractive strategy to develop chemically recyclable polymers to establish a circular plastic economy. Despite the recent advancements, chemically recyclable polymers still face challenges including high energy cost for polymer preparation or recycling, poor monomer recovery selectivity and efficiency as well as undesired material performance. In this contribution, we present the chemoselective controlled ring-opening polymerization of bio-renewable bifunctional α-methylene-δ-valerolactone (MVL) to produce exclusive functionalizable polyester using strong base/urea binary catalysts. The obtained polyester with high molar mass exhibits good tensile strength comparable to that of some commodity plastics. Remarkably, the obtained polyester can be depolymerized to recover pristine monomer with a 96 % yield by thermolysis, thus successfully establishing a closed-loop life cycle.
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Affiliation(s)
- Jiandong Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Fusheng Liu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Yalei Liu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Yong Shen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Zhibo Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.,Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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7
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Brønsted acidic Heteropolyanion-Based ionic Liquid:A highly efficient Reaction-induced Self-separation catalyst for Baeyer-Villiger reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Functionalizable and Chemically Recyclable Thermoplastics from Chemoselective Ring‐Opening Polymerization of Bio‐renewable Bifunctional α‐Methylene‐δ‐valerolactone. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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9
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Gu J, Song Y, Yang Y, Guan C, Jiang J. Mechanical Insights into Activation of Peroxides by Quinones: Formation of Oxygen-Centered Radicals or Singlet Oxygen. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8776-8783. [PMID: 35533403 DOI: 10.1021/acs.est.1c08883] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, the mechanism of the activation of peroxides by quinones has been investigated through quantum chemical calculations. Hydrogen peroxide (H2O2), peroxomonosulfate (PMS), peracetic acid (PAA), and CH3OOH were chosen as the model peroxides and p-benzoquinone (p-BQ) and tetrachloro-1,4-benzoquinone (TCBQ) as the model quinones. The nucleophilic attack of peroxides can occur on the carbonyl and olefinic carbons of quinones. For p-BQ, the nucleophilic attack of HO2-, CH3OO-, PMS, and PAA might prefer to occur on the carbonyl carbons, which have more positive atomic charges. Then, further transformation could not be induced from the addition of HO2- and CH3OO- to p-BQ. Comparatively, singlet oxygen (1O2) could be generated in the cases of PMS and PAA. For TCBQ, the chlorine atoms cause the olefinic carbons to carry more positive atomic charges, and then, HO2- preferred to add to the olefinic carbons, which might induce the formation of the hydroxyl radical (•OH). The activation of PMS by TCBQ was similar to that by p-BQ, with the kinetical feasibility of 1O2 formation. These findings may provide some theoretical insights into the reaction of peroxides with quinones, especially into the interconnection between the substitutes and the formation of oxygen-centered radicals (e.g., •OH) and 1O2.
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Affiliation(s)
- Jia Gu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Yang Song
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Yi Yang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Chaoting Guan
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, Guangdong, China
| | - Jin Jiang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, Guangdong, China
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10
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Synthesis, modification and application of layered double hydroxides as catalysts for Baeyer-Villiger oxidation. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.11.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Dong Y, Li T, Zhang S, Sanchis J, Yin H, Ren J, Sheng X, Li G, Reetz MT. Biocatalytic Baeyer–Villiger Reactions: Uncovering the Source of Regioselectivity at Each Evolutionary Stage of a Mutant with Scrutiny of Fleeting Chiral Intermediates. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yijie Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
- Key Laboratory of Agricultural Microbiomics and Precision Application − Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Tang Li
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Shiqing Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin 300308, P.R. China
| | - Joaquin Sanchis
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Heng Yin
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, PR China
| | - Jie Ren
- State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xiang Sheng
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin 300308, P.R. China
| | - Guangyue Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Manfred T. Reetz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim 45470, Germany
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12
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Arp FF, Ashirov R, Bhuvanesh N, Blümel J. Di(hydroperoxy)adamantane adducts: synthesis, characterization and application as oxidizers for the direct esterification of aldehydes. Dalton Trans 2021; 50:15296-15309. [PMID: 34636381 DOI: 10.1039/d1dt03243g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The di(hydroperoxy)adamantane adducts of water (1) and phosphine oxides p-Tol3PO·(HOO)2C(C9H14) (2), o-Tol3PO·(HOO)2C(C9H14) (3), and Cy3PO·(HOO)2C(C9H14) (4), as well as a CH2Cl2 adduct of a phosphole oxide dimer (8), have been created and investigated by multinuclear NMR spectroscopy, and by Raman and IR spectroscopy. The single crystal X-ray structures for 1-4 and 8 are reported. The IR and 31P NMR data are in accordance with strong hydrogen bonding of the di(hydroperoxy)adamantane adducts. The Raman ν(O-O) stretching bands of 1-4 prove that the peroxo groups are present in the solids. Selected di(hydroperoxy)alkane adducts, in combination with AlCl3 as catalyst, have been applied for the direct oxidative esterification of n-nonyl aldehyde, benzaldehyde, p-methylbenzaldehyde, p-bromobenzaldehyde, and o-hydroxybenzaldehyde to the corresponding methyl esters. The esterification takes place in an inert atmosphere, under anhydrous and oxygen-free conditions, within a time frame of 45 minutes to 5 hours at room temperature. Hereby, two oxygen atoms per adduct assembly are active with respect to the quantitative transformation of the aldehyde into the ester.
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Affiliation(s)
- Fabian F Arp
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Rahym Ashirov
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, College Station, TX, 77842-3012, USA.
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13
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George IR, López-Tena M, Sundin AP, Strand D. A Unifying Bioinspired Synthesis of (-)-Asperaculin A and (-)-Penifulvin D. Org Lett 2021; 23:3536-3540. [PMID: 33830776 PMCID: PMC8155558 DOI: 10.1021/acs.orglett.1c00955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The first syntheses
of the isomeric dioxafenestrene natural products
(−)-asperaculin A and (−)-penifulvin D are reported.
Each target is formed selectively by choice of oxidant in a final
divergent bioinspired Baeyer–Villiger (BV) reaction. Density
functional theory calculations reveal that electrostatic interactions
between the oxidant leaving group and the lactone motif accounts for
a reversal of selectivity with H2O2/H3O+ compared to peracids. Synthetic features include forging
the polycyclic carbon framework with a diastereoselective meta-photocycloaddition biased by an ether substituent at
the aryl α-position. The encumbered tertiary alcohol was installed
by cyanation of a ketone intermediate followed by nonaqueous hydrolysis
of the resulting delicate cyanohydrin.
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Affiliation(s)
- Ian R George
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Miguel López-Tena
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Anders P Sundin
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Daniel Strand
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
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14
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Bhadra BN, Baek YS, Choi CH, Jhung SH. How neutral nitrogen-containing compounds are oxidized in oxidative-denitrogenation of liquid fuel with TiO 2@carbon. Phys Chem Chem Phys 2021; 23:8368-8374. [PMID: 33876001 DOI: 10.1039/d1cp00633a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidative-denitrogenation (ODN) of indole (IND) and methyl-substituted INDs (methyl-INDs), representative neutral nitrogen-containing compounds (NCCs), was carried out with TiO2@C and H2O2 as heterogeneous catalyst and oxidant, respectively, under ultrasound irradiation. The oxidation of INDs progressed through radical formation, as evidenced by electron spin resonance and radical scavenger experiments. The oxidized position of INDs in the ODN process was checked via characterization of the obtained products. It was observed that the oxidation finally occurred on the carbon rather than on the nitrogen atom of INDs, unlike the oxidation of basic NCCs (e.g., oxidation on the nitrogen atom, as respective N-oxides were formed) and sulfur-containing compounds. To understand the relative reactivity and oxidation position, electron density (ED) on the nitrogen atom of the studied INDs and relative stability of representative intermediates/products were calculated. It could be confirmed that ED on the nitrogen atom of the INDs is very important in the oxidation of INDs since the ODN reactivity of INDs was enhanced with increasing ED on the nitrogen atom of the investigated INDs. Moreover, theoretical analyses of the relative stability of substrate and intermediates/products (especially for IND) can explain the route for the observed final products in ODN. In other words, oxygen on the nitrogen atom, obtained via the first step of oxidation (electrophilic addition of an active oxygen atom on nitrogen), moves to the nearby carbon atom, because of the relative stability of the intermediates and products.
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Affiliation(s)
- Biswa Nath Bhadra
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea.
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15
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Chen Y, Ding R, Wang Y, Ye Y, Zhang G. Kinetics study and process simulation of reactive distillation for the synthesis of ε‐caprolactone. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yachun Chen
- School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology Wuhan China
| | - Rong Ding
- School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology Wuhan China
| | - Yichao Wang
- School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology Wuhan China
| | - Yuntao Ye
- School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology Wuhan China
| | - Guangxu Zhang
- School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology Wuhan China
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16
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Fanqing Li, Zhou Z, Qin J, Liu Z, Liu C, Huang H, Liu G, Wu W. Influence of DETA on the Tin Promotion of Mesoporous Sn–Ti Catalysts for Cyclohexanone Oxidation by Molecular Oxygen. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420110230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Goyal R, Singh O, Agrawal A, Samanta C, Sarkar B. Advantages and limitations of catalytic oxidation with hydrogen peroxide: from bulk chemicals to lab scale process. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1796190] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Reena Goyal
- Refinery Technology Division, CSIR-Indian Institute of Petroleum, Dehradun, India
- Department of Chemical Engineering, Indian Institute of Technology-Roorkee, Uttarakhand, India
| | - Omvir Singh
- Upstream & Wax Rheology Division, CSIR-Indian Institute of Petroleum, Dehradun, India
| | - Ankit Agrawal
- Upstream & Wax Rheology Division, CSIR-Indian Institute of Petroleum, Dehradun, India
| | - Chanchal Samanta
- Corporate R&D Center, Bharat Petroleum Corporation Limited, Greater Noida, India
| | - Bipul Sarkar
- Upstream & Wax Rheology Division, CSIR-Indian Institute of Petroleum, Dehradun, India
- SKKU Advanced Institute of Nano Technology, Sungkyunkwan University, Gyeong Gi-Do, South Korea
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18
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Arp FF, Bhuvanesh N, Blümel J. Di(hydroperoxy)cycloalkane Adducts of Triarylphosphine Oxides: A Comprehensive Study Including Solid-State Structures and Association in Solution. Inorg Chem 2020; 59:13719-13732. [PMID: 32866378 DOI: 10.1021/acs.inorgchem.0c02087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Four new di(hydroperoxy)cycloalkane adducts (Ahn adducts) of p-Tol3PO (1) and o-Tol3PO (2), namely, p-Tol3PO·(HOO)2C(CH2)5 (3), o-Tol3PO·(HOO)2C(CH2)5 (4), p-Tol3PO·(HOO)2C(CH2)6 (5), and o-Tol3PO·(HOO)2C(CH2)6 (6), have been synthesized and fully characterized. Their single crystal X-ray structures have been determined and analyzed. The 31P NMR data are in accordance with hydrogen bonding of the di(hydroperoxy)alkanes to the P═O groups of the phosphine oxides. Due to their high solubility in organic solvents, natural abundance 17O NMR spectra of 1-6 could be recorded, providing the signals for the P═O groups and additionally the two different oxygen nuclei in the O-OH groups in the adducts 3-6. The association and mobility of 3-6 were explored by 1H DOSY (diffusion ordered spectroscopy) NMR, which indicated persistent hydrogen bonding of the adducts in solution. Competition experiments with phosphine oxides allowed ranking of the affinities of the di(hydroperoxy)cycloalkanes for the different phosphine oxide carriers. On the basis of variable temperature 31P NMR investigations, the Gibbs energies of activation ΔG‡ for the adduct dissociation processes of 3-6 at different temperatures, as well as the enthalpy ΔH‡ and entropy ΔS‡ of activation, have been determined. IR spectroscopy of 3-6 corroborated the hydrogen bonding, and in the Raman spectra, the ν(O-O) stretching bands have been identified, confirming the presence of peroxy groups in the solid materials. The high solubilities in selected organic solvents have been quantified.
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Affiliation(s)
- Fabian F Arp
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
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19
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Maity S, Ram F, Dhar BB. Phosphorous-Doped Graphitic Material as a Solid Acid Catalyst for Microwave-Assisted Synthesis of β-Ketoenamines and Baeyer-Villiger Oxidation. ACS OMEGA 2020; 5:15962-15972. [PMID: 32656417 PMCID: PMC7345427 DOI: 10.1021/acsomega.0c01231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Synthesis of phosphorous-doped graphitic materials (P-Gc) using phytic acid as a precursor was done in a microwave oven in a cost- and time-effective green way. The material was used as a solid acid catalyst for microwave (MW)-assisted synthesis of β-ketoenamines and Baeyer-Villiger (BV) oxidation. In the case of BV oxidation, hydrogen peroxide (H2O2) was used as a green oxidant. For β-ketoenamines, in most cases, 100% conversion with an ∼95% yield was achieved in ethyl acetate medium. In solvent-free conditions, the yield of β-ketoenamines was ∼75%. A kinetic study suggested that the resonance stabilization of the positive reaction center happens in the transition state for β-ketoenamine synthesis. In BV oxidation, cyclic ketones were converted to their corresponding cyclic esters in good to high yields (∼80% yield) in a shorter reaction time (6-20 min). As per our knowledge, this is the first report of BV oxidation catalyzed by a heteroatom-doped graphitic material. For BV oxidation, the phosphoric acid functional groups present in P-Gc might increase the electrophilicity of the carbonyl group of the ketones to compensate for the weakness of H2O2 as a nucleophile and a spiro-bisperoxide intermediate has been identified in high-resolution mass spectrometry.
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Affiliation(s)
- Sayantan Maity
- Department
of Chemistry, Shiv Nadar University, Gautam Buddha Nagar, Dadri UP-201314, India
| | - Farsa Ram
- Polymer
Science and Engineering Division, CSIR-National
Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Basab Bijayi Dhar
- Department
of Chemistry, Shiv Nadar University, Gautam Buddha Nagar, Dadri UP-201314, India
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20
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Arp FF, Bhuvanesh N, Blümel J. Hydrogen peroxide adducts of triarylphosphine oxides. Dalton Trans 2019; 48:14312-14325. [PMID: 31475705 DOI: 10.1039/c9dt03070k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Five new hydrogen peroxide adducts of phosphine oxides (p-Tol3PO·H2O2)2 (1), (o-Tol3PO·H2O2)2 (2), (o-Tol2PhPO·H2O2)2 (3), (p-Tol3PO)2·H2O2 (4), and (o-TolPh2PO)2·H2O2 (5), and the water adduct (o-Tol2PhPO·H2O)2 (6) have been synthesized and fully characterized. Their single crystal X-ray structures have been determined and analyzed. The IR and 31P NMR data are in accordance with strong hydrogen bonding of the hydrogen peroxide. The mono- versus dimeric nature of the adduct assemblies has been investigated by DOSY NMR experiments. Raman spectroscopy of the symmetric adducts and the ν(O-O) stretching bands confirm the presence of hydrogen-bonded hydrogen peroxide in the solid materials. The solubilities in organic solvents have been quantified. Due to the high solubilities of 1-6 in organic solvents their 17O NMR spectra could be recorded in natural abundance, providing well-resolved signals for the P[double bond, length as m-dash]O and O-O groups. The adducts 1-5 have been probed regarding their stability in solution at 105 °C. The decomposition of the adduct 1 takes place by loss of the active oxygen atoms in two steps.
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Affiliation(s)
- Fabian F Arp
- Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA.
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA.
| | - Janet Blümel
- Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA.
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21
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Olszówka J, Karcz R, Michalik-Zym A, Napruszewska B, Bielańska E, Kryściak-Czerwenka J, Socha R, Nattich-Rak M, Krzan M, Klimek A, Bahranowski K, Serwicka E. Effect of grinding on the physico-chemical properties of Mg-Al hydrotalcite and its performance as a catalyst for Baeyer-Villiger oxidation of cyclohexanone. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.05.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Sakai T, Watanabe M, Ohkado R, Arakawa Y, Imada Y, Iida H. Flavinium and Alkali-Metal Assembly on Sulfated Chitin: A Heterogeneous Supramolecular Catalyst for H 2 O 2 -Mediated Oxidation. CHEMSUSCHEM 2019; 12:1640-1645. [PMID: 30803158 DOI: 10.1002/cssc.201900485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Heterogeneous multiple-catalyst assemblies were developed in which the flavinium cation and Na or Li cations were easily immobilized on a chitin-derived anionic polymeric scaffold through noncovalent ionic interactions. The supramolecular flavinium catalysts were successfully employed in the environmentally friendly heterogeneous Baeyer-Villiger oxidation and sulfoxidation by H2 O2 . Owing to the cooperative catalytic effect of flavinium, alkali metal, and sulfated chitin, the supramolecular flavinium assembly showed higher catalytic activity for the Baeyer-Villiger oxidation of cyclic ketones than the corresponding homogeneous flavinium catalyst. Because the ionic assembly was stable under the reaction conditions, the catalyst could be readily recovered by simple filtration and reused.
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Affiliation(s)
- Takuya Sakai
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Japan
| | - Mirai Watanabe
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Japan
| | - Ryoma Ohkado
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Japan
| | - Yukihiro Arakawa
- Department of Applied Chemistry, Tokushima University, Minamijosanjima, Tokushima, 770-8506, Japan
| | - Yasushi Imada
- Department of Applied Chemistry, Tokushima University, Minamijosanjima, Tokushima, 770-8506, Japan
| | - Hiroki Iida
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Japan
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23
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Gao D, Jin F, Lee JK, Zare RN. Aqueous microdroplets containing only ketones or aldehydes undergo Dakin and Baeyer-Villiger reactions. Chem Sci 2019; 10:10974-10978. [PMID: 32874488 PMCID: PMC7439776 DOI: 10.1039/c9sc05112k] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/12/2019] [Indexed: 01/04/2023] Open
Abstract
The Dakin and Baeyer-Villiger (BV) oxidation reactions require addition of peroxides as oxidants and an acid or a base as a catalyst. Reaction times range from hours to days to obtain target products. Previously, we reported that hydrogen peroxide (H2O2) is spontaneously generated in water microdroplets without any added chemicals or applied electrical potential. Here, we report that the Dakin and BV reactions occur in modest yields within milliseconds in aqueous microdroplets at room-temperature without the addition of external peroxides and catalysts. H2O2 generation is the result of the special environment of the microdroplet surface, which promotes water autoionization. We find that increasing the content of water and decreasing the droplet size improve the product yield of the Dakin and BV reactions, supporting the contention that the amount of H2O2 generated in aqueous microdroplets could induce the two reactions and the reactions occur at or near the air-water interface of the microdroplet surface.
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Affiliation(s)
- Dan Gao
- Department of Chemistry , Stanford University , Stanford , CA 94305 , USA . .,State Key Laboratory of Chemical Oncogenomics , Tsinghua Shenzhen International Graduate School , Tsinghua University , Shenzhen , 518055 , China
| | - Feng Jin
- Department of Chemistry , Stanford University , Stanford , CA 94305 , USA . .,Shenzhen Deepdrug Information Technology Co. Ltd. , Shenzhen , 518052 , China
| | - Jae Kyoo Lee
- Department of Chemistry , Stanford University , Stanford , CA 94305 , USA .
| | - Richard N Zare
- Department of Chemistry , Stanford University , Stanford , CA 94305 , USA .
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24
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Han Y, Li S, Ding R, Xu W, Zhang G. Baeyer–Villiger oxidation of cyclohexanone catalyzed by cordierite honeycomb washcoated with Mg–Sn–W composite oxides. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.05.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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25
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Featherston AL, Shugrue CR, Mercado BQ, Miller SJ. Phosphothreonine (pThr)-Based Multifunctional Peptide Catalysis for Asymmetric Baeyer-Villiger Oxidations of Cyclobutanones. ACS Catal 2019; 9:242-252. [PMID: 31007966 DOI: 10.1021/acscatal.8b04132] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biologically inspired phosphothreonine (pThr)-embedded peptides that function as chiral Brønsted acid catalysts for enantioselective Baeyer-Villiger oxidations (BV) of cyclobutanones with aqueous H2O2 are reported herein. Complementary to traditional BINOL-derived chiral phosphoric acids (CPAs), the functional diversity of the peptidic scaffold provides the opportunity for multiple points of contact with substrates via hydrogen bonding, and the ease of peptide synthesis facilitates rapid diversification of the catalyst structure, such that numerous unique peptide-based CPA catalysts have been prepared. Utilizing a hypothesis-driven design, we identified a pThr-based catalyst that contains an N-acylated diaminopropionic acid (Dap) residue, which achieves high enantioselectivity with catalyst loadings as low as 0.5 mol%. The power of peptide-based multi-site binding is further exemplified through reversal in the absolute stereochemical outcome upon repositioning of the substrate-directing group (ortho- to meta). Modifications to the i+3 residue (LDap to LPhe) lead to an observed enantiodivergence without inversion of any stereogenic center on the peptide catalyst, due to noncovalent interactions. Structure-selectivity and 1H-1H-ROESY studies revealed that the proposed hydrogen bonding interactions are essential for high levels of enantioinduction. The ability for the phosphopeptides to operate as multifunctional oxidation catalysts expands the scope of pThr catalysts and provides a framework for the future selective diversification of more complex substrates, including natural products.
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Affiliation(s)
- Aaron L. Featherston
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Christopher R. Shugrue
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Brandon Q. Mercado
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Scott J. Miller
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
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26
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Arp FF, Ahn SH, Bhuvanesh N, Blümel J. Selective synthesis and stabilization of peroxides via phosphine oxides. NEW J CHEM 2019. [DOI: 10.1039/c9nj04858h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
MEKPO (methyl ethyl ketone peroxide) and other peroxides can be synthesized selectively and stabilized as hydrogen-bonded phosphine oxide adducts.
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Affiliation(s)
- Fabian F. Arp
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | - Shin Hye Ahn
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | | | - Janet Blümel
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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27
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Hu Y, Wang J, Cen Y, Zheng H, Huang M, Lin X, Wu Q. “Top” or “bottom” switches of a cyclohexanone monooxygenase controlling the enantioselectivity of the sandwiched substrate. Chem Commun (Camb) 2019; 55:2198-2201. [DOI: 10.1039/c8cc09951k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Single mutation F432I/L or L435A/G remarkably reversed the (−)-selectivity of WT CHMOAcineto.
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Affiliation(s)
- Yujing Hu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
- School of Chemistry and Chemical Engineering
| | - Jie Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Yixin Cen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - He Zheng
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Meilan Huang
- School of Chemistry and Chemical Engineering
- Queen's University
- UK
| | - Xianfu Lin
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Qi Wu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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28
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Chevalier Y, Lock Toy Ki Y, le Nouen D, Mahy JP, Goddard JP, Avenier F. Aerobic Baeyer-Villiger Oxidation Catalyzed by a Flavin-Containing Enzyme Mimic in Water. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoan Chevalier
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
| | - Yvette Lock Toy Ki
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Didier le Nouen
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Jean-Pierre Mahy
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
| | - Jean-Philippe Goddard
- Université de Haute-Alsace; Université de Strasbourg; CNRS, LIMA UMR 7042; 68100 Mulhouse France
| | - Frédéric Avenier
- Univ Paris Sud; Université Paris Saclay; LCBB, ICMMO, UMR CNRS 8182; 91405 Orsay France
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29
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Chevalier Y, Lock Toy Ki Y, le Nouen D, Mahy JP, Goddard JP, Avenier F. Aerobic Baeyer-Villiger Oxidation Catalyzed by a Flavin-Containing Enzyme Mimic in Water. Angew Chem Int Ed Engl 2018; 57:16412-16415. [PMID: 30358055 DOI: 10.1002/anie.201810124] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/11/2018] [Indexed: 01/16/2023]
Abstract
Direct incorporation of molecular oxygen into small organic molecules has attracted much attention for the development of new environmentally friendly oxidation processes. In line with this approach, bioinspired systems mimicking enzyme activities are of particular interest since they may perform catalysis in aqueous media. Demonstrated herein is the incorporation of a natural flavin cofactor (FMN) into the specific microenvironment of a water-soluble polymer which allows the efficient reduction of the FMN by NADH in aqueous solution. Once reduced, this artificial flavoenzyme can then activate molecular dioxygen under aerobic conditions and result in the Baeyer-Villiger reaction at room temperature in water.
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Affiliation(s)
- Yoan Chevalier
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
| | - Yvette Lock Toy Ki
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Didier le Nouen
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Jean-Pierre Mahy
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
| | - Jean-Philippe Goddard
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA UMR 7042, 68100, Mulhouse, France
| | - Frédéric Avenier
- Univ Paris Sud, Université Paris Saclay, LCBB, ICMMO, UMR CNRS 8182, 91405, Orsay, France
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30
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Sk M, Banesh S, Trivedi V, Biswas S. Selective and Sensitive Sensing of Hydrogen Peroxide by a Boronic Acid Functionalized Metal-Organic Framework and Its Application in Live-Cell Imaging. Inorg Chem 2018; 57:14574-14581. [PMID: 30407802 DOI: 10.1021/acs.inorgchem.8b02240] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new boronic acid functionalized Zr(IV) metal-organic framework having the capability of sensing H2O2 in live cells is reported. The Zr-MOF bears a UiO-66 structure and contains 2-boronobenzene-1,4-dicarboxylic acid (BDC-B(OH)2) as a framework linker. The activated Zr-UiO-66-B(OH)2 compound (called 1') is highly selective for the fluorogenic detection of H2O2 in HEPES buffer at pH 7.4, even in the presence of interfering ROS (ROS = reactive oxygen species) and other biologically relevant analytes. The fluorescent probe was found to display extraordinary sensitivity for H2O2 (detection limit 0.015 μM) in HEPES buffer, which represents a lower value in comparison to those of the MOF probes documented so far for sensing H2O2 using other analytical methods. Taking advantage of its high selectivity and sensitivity for H2O2 in HEPES buffer, the probe was successfully employed for the imaging of intracellular H2O2. Imaging studies with MDAMB-231 cells revealed the emergence of bright blue fluorescence after loading with probe 1' and subsequent treatment with H2O2 solution.
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Affiliation(s)
- Mostakim Sk
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , Assam , India
| | - Sooram Banesh
- Malaria Research Group, Department of Biosciences and Bioengineering , Indian Institute of Technology Guwahati , Guwahati 781039 Assam , India
| | - Vishal Trivedi
- Malaria Research Group, Department of Biosciences and Bioengineering , Indian Institute of Technology Guwahati , Guwahati 781039 Assam , India
| | - Shyam Biswas
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , Assam , India
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31
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Bartalucci N, Biancalana L, Bortoluzzi M, Pampaloni G, Giordano L, Zacchini S, Marchetti F. Cascade Reactions of α-Phenylcinnamic Acid to Polycyclic Compounds Promoted by High Valent Transition Metal Halides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Niccolò Bartalucci
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Lorenzo Biancalana
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Marco Bortoluzzi
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
- Università Ca' Foscari Venezia; Dipartimento di Scienze Molecolari e Nanosistemi, Via Torino 155; I-30170 Mestre (VE) Italy
| | - Guido Pampaloni
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Luca Giordano
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
| | - Stefano Zacchini
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
- Università di Bologna; Dipartimento di Chimica Industriale “Toso Montanari”, Viale Risorgimento 4; I-40136 Bologna Italy
| | - Fabio Marchetti
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
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32
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Li G, Garcia-Borràs M, Furst MJLJ, Ilie A, Fraaije MW, Houk KN, Reetz MT. Overriding Traditional Electronic Effects in Biocatalytic Baeyer-Villiger Reactions by Directed Evolution. J Am Chem Soc 2018; 140:10464-10472. [PMID: 30044629 PMCID: PMC6314816 DOI: 10.1021/jacs.8b04742] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Controlling the regioselectivity of Baeyer-Villiger (BV) reactions remains an ongoing issue in organic chemistry, be it by synthetic catalysts or enzymes of the type Baeyer-Villiger monooxygenases (BVMOs). Herein, we address the challenging problem of switching normal to abnormal BVMO regioselectivity by directed evolution using three linear ketones as substrates, which are not structurally biased toward abnormal reactivity. Upon applying iterative saturation mutagenesis at sites lining the binding pocket of the thermostable BVMO from Thermocrispum municipale DSM 44069 (TmCHMO) and using 4-phenyl-2-butanone as substrate, the regioselectivity was reversed from 99:1 (wild-type enzyme in favor of the normal product undergoing 2-phenylethyl migration) to 2:98 in favor of methyl migration when applying the best mutant. This also stands in stark contrast to the respective reaction using the synthetic reagent m-CPBA, which provides solely the normal product. Reversal of regioselectivity was also achieved in the BV reaction of two other linear ketones. Kinetic parameters and melting temperatures revealed that most of the evolved mutants retained catalytic activity, as well as thermostability. In order to shed light on the origin of switched regioselectivity in reactions of 4-phenyl-2-butanone and phenylacetone, extensive QM/MM and MD simulations were performed. It was found that the mutations introduced by directed evolution induce crucial changes in the conformation of the respective Criegee intermediates and transition states in the binding pocket of the enzyme. In mutants that destabilize the normally preferred migration transition state, a reversal of regioselectivity is observed. This conformational control of regioselectivity overrides electronic control, which normally causes preferential migration of the group that is best able to stabilize positive charge. The results can be expected to aid future protein engineering of BVMOs.
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Affiliation(s)
- Guangyue Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agriproduct Quality and Safety, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Max-Planck-Institut fürKohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
- Department of Chemistry, Philipps-University, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Marc Garcia-Borràs
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Maximilian J. L. J. Furst
- Molecular Enzymology Group, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Adriana Ilie
- Max-Planck-Institut fürKohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
- Department of Chemistry, Philipps-University, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Marco W. Fraaije
- Molecular Enzymology Group, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Manfred T. Reetz
- Max-Planck-Institut fürKohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
- Department of Chemistry, Philipps-University, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
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Fe–Co/sulfonated polystyrene as an efficient and selective catalyst in heterogeneous Baeyer–Villiger oxidation reaction of cyclic ketones. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2016.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Yacob S, Caulfield MJ, Barckholtz TA. Partial oxidation of alkanes by dioxiranes formed in situ at low temperature. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2018; 376:rsta.2017.0055. [PMID: 29175986 DOI: 10.1098/rsta.2017.0055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
Partial oxidation catalysts capable of efficiently operating at low temperatures may limit the over-oxidation of alkane substrates and thereby improve selectivity. This work focuses on examining alkane oxidation using completely metal-free organocatalysts, dioxiranes. The dioxiranes employed here are synthesized by oxidation of a ketone using a terminal oxidant, such as hydrogen peroxide. Our work generates the dioxirane in situ, so that the process can be catalytic with respect to the ketone. To date, we have demonstrated selective partial oxidation of adamantane using ketone catalysts resulting in yields upwards of 60% towards 1-adamantanol with greater than 99% selectivity. Furthermore, we have demonstrated that changing the electrophilic character of the ketone R groups to contain more electron-donating ligands facilitates the dioxirane ring formation and improves overall oxidation yields. Isotopic labelling studies using H218O2 show the preferential incorporation of an 18O label into the parent ketone, providing evidence for a dioxirane intermediate formed in situ The isotopic labelling studies, along with solvent effect studies, suggest the formation of peracetic acid as a reactive intermediate.This article is part of a discussion meeting issue 'Providing sustainable catalytic solutions for a rapidly changing world'.
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Affiliation(s)
- Sara Yacob
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 Route 22 East, Annandale, NJ 08801, USA
| | - Michael J Caulfield
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 Route 22 East, Annandale, NJ 08801, USA
| | - Timothy A Barckholtz
- Corporate Strategic Research, ExxonMobil Research and Engineering Company, 1545 Route 22 East, Annandale, NJ 08801, USA
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Romero E, Gómez Castellanos JR, Gadda G, Fraaije MW, Mattevi A. Same Substrate, Many Reactions: Oxygen Activation in Flavoenzymes. Chem Rev 2018; 118:1742-1769. [DOI: 10.1021/acs.chemrev.7b00650] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Elvira Romero
- Molecular Enzymology Group, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - J. Rubén Gómez Castellanos
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Giovanni Gadda
- Departments of Chemistry and Biology, Center for Diagnostics and Therapeutics, and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, Georgia 30302-3965, United States
| | - Marco W. Fraaije
- Molecular Enzymology Group, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Andrea Mattevi
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
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Ahn SH, Bhuvanesh N, Blümel J. Di(hydroperoxy)alkane Adducts of Phosphine Oxides: Safe, Solid, Stoichiometric, and Soluble Oxidizing Agents. Chemistry 2017; 23:16998-17009. [DOI: 10.1002/chem.201703676] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Shin Hye Ahn
- Department of Chemistry Texas A&M University College Station TX 77842-3012 USA
| | - Nattamai Bhuvanesh
- Department of Chemistry Texas A&M University College Station TX 77842-3012 USA
| | - Janet Blümel
- Department of Chemistry Texas A&M University College Station TX 77842-3012 USA
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38
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Shi G, He X, Shang Y, Yang C, Xiang L. Oxidative Rearrangement of Isatins with Arylamines Using H2
O2
as Oxidant: A Facile Synthesis of Quinazoline-2,4-diones and Evaluation of Their Antibacterial Activity. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700280] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Guanghao Shi
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu Anhui 241000 China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu Anhui 241000 China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu Anhui 241000 China
| | - Cheng Yang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu Anhui 241000 China
| | - Liwei Xiang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science; Anhui Normal University; Wuhu Anhui 241000 China
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Li G, Fürst MJLJ, Mansouri HR, Ressmann AK, Ilie A, Rudroff F, Mihovilovic MD, Fraaije MW, Reetz MT. Manipulating the stereoselectivity of the thermostable Baeyer–Villiger monooxygenase TmCHMO by directed evolution. Org Biomol Chem 2017; 15:9824-9829. [DOI: 10.1039/c7ob02692g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The thermostable Baeyer–Villiger monooxygenase TmCHMO and evolved mutants are viable catalysts in stereoselective reactions of structurally different ketones.
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Affiliation(s)
- Guangyue Li
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
- Fachbereich Chemie
- Philipps-Universität
| | | | | | - Anna K. Ressmann
- Institute of Applied Synthetic Chemistry
- TU Wien
- 1060 Vienna
- Austria
| | - Adriana Ilie
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
- Fachbereich Chemie
- Philipps-Universität
| | - Florian Rudroff
- Institute of Applied Synthetic Chemistry
- TU Wien
- 1060 Vienna
- Austria
| | | | - Marco W. Fraaije
- Molecular Enzymology Group
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Manfred T. Reetz
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
- Fachbereich Chemie
- Philipps-Universität
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Yoshimura Y, Ogasawara Y, Suzuki K, Yamaguchi K, Mizuno N. “Release and catch” catalysis by tungstate species for the oxidative cleavage of olefins. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00062f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the presence of tungstate species supported on zinc-modified tin dioxide (W/Zn–SnO2), oxidative cleavage of olefins and related compounds using H2O2 efficiently proceeds through a “release and catch” catalytic mechanism.
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Affiliation(s)
- Yu Yoshimura
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Yoshiyuki Ogasawara
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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41
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Martins LM, Pombeiro AJ. C-scorpionate rhenium complexes and their application as catalysts in Baeyer-Villiger oxidation of ketones. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.06.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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First chemo-enzymatic synthesis of the ( R)-Taniguchi lactone and substrate profiles of CAMO and OTEMO, two new Baeyer-Villiger monooxygenases. MONATSHEFTE FUR CHEMIE 2016; 148:157-165. [PMID: 28127101 PMCID: PMC5225235 DOI: 10.1007/s00706-016-1873-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/06/2016] [Indexed: 10/31/2022]
Abstract
ABSTRACT This study investigates the substrate profile of cycloalkanone monooxygenase and 2-oxo-Δ3-4,5,5-trimethylcyclopentenylacetyl-coenzyme A monooxygenase, two recently discovered enzymes of the Baeyer-Villiger monooxygenase family, used as whole-cell biocatalysts. Biooxidations of a diverse set of ketones were performed on analytical scale: desymmetrization of substituted prochiral cyclobutanones and cyclohexanones, regiodivergent oxidation of terpenones and bicyclic ketones, as well as kinetic resolution of racemic cycloketones. We demonstrated the applicability of the title enzymes in the enantioselective synthesis of (R)-(-)-Taniguchi lactone, a building block for the preparation of various natural product analogs such as ent-quinine. GRAPHICAL ABSTRACT
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Conrad S, Wolf P, Müller P, Orsted H, Hermans I. Influence of Hydrophilicity on the Snβ-Catalyzed Baeyer-Villiger Oxidation of Cyclohexanone with Aqueous Hydrogen Peroxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600893] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sabrina Conrad
- Department of Chemistry; Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1101 University Avenue Madison Wisconsin 53706 USA
- Department of Chemistry and Applied Biosciences; ETH Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
| | - Patrick Wolf
- Department of Chemistry; Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1101 University Avenue Madison Wisconsin 53706 USA
- Department of Chemistry and Applied Biosciences; ETH Zurich; Vladimir-Prelog-Weg 1-5/10 8093 Zurich Switzerland
| | - Philipp Müller
- Department of Chemistry; Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1101 University Avenue Madison Wisconsin 53706 USA
| | - Hailey Orsted
- Department of Chemistry; Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1101 University Avenue Madison Wisconsin 53706 USA
| | - Ive Hermans
- Department of Chemistry; Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1101 University Avenue Madison Wisconsin 53706 USA
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Poudel PP, Arimitsu K, Yamamoto K. Self-assembled ion-pair organocatalysis--asymmetric Baeyer-Villiger oxidation mediated by flavinium-cinchona alkaloid dimer. Chem Commun (Camb) 2016; 52:4163-6. [PMID: 26902149 DOI: 10.1039/c6cc00663a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ion-pair catalyst generated by assembly of a chiral flavinium and a cinchona alkaloid dimer for use in asymmetric Baeyer-Villiger oxidation is presented. Ion-pair formation is essential for enhancing the catalytic activity and stereoselectivity. The catalyst is applicable to structurally diverse 3-substituted cyclobutanones, providing good to excellent enantioselectivities (up to 98 : 2 e.r.). This study provides the first example of self-assembly of a flavin derivative and a base to form a chiral reaction site that enables a highly stereoselective reaction to occur.
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Affiliation(s)
- Pramod Prasad Poudel
- Department of Chemistry and Biochemistry, University of Toledo, 2801 W. Bancroft St., Toledo, OH 43606, USA.
| | - Kenji Arimitsu
- Department of Chemistry and Biochemistry, University of Toledo, 2801 W. Bancroft St., Toledo, OH 43606, USA.
| | - Kana Yamamoto
- Department of Chemistry and Biochemistry, University of Toledo, 2801 W. Bancroft St., Toledo, OH 43606, USA.
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Copper Tetrasulfophthalocyanine Intercalated Hydrotalcite as an Efficient Bifunctional Catalyst for the Baeyer–Villiger Oxidation. Catal Letters 2016. [DOI: 10.1007/s10562-016-1823-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Yaremenko IA, Vil’ VA, Demchuk DV, Terent’ev AO. Rearrangements of organic peroxides and related processes. Beilstein J Org Chem 2016; 12:1647-748. [PMID: 27559418 PMCID: PMC4979652 DOI: 10.3762/bjoc.12.162] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 07/14/2016] [Indexed: 12/17/2022] Open
Abstract
This review is the first to collate and summarize main data on named and unnamed rearrangement reactions of peroxides. It should be noted, that in the chemistry of peroxides two types of processes are considered under the term rearrangements. These are conventional rearrangements occurring with the retention of the molecular weight and transformations of one of the peroxide moieties after O-O-bond cleavage. Detailed information about the Baeyer-Villiger, Criegee, Hock, Kornblum-DeLaMare, Dakin, Elbs, Schenck, Smith, Wieland, and Story reactions is given. Unnamed rearrangements of organic peroxides and related processes are also analyzed. The rearrangements and related processes of important natural and synthetic peroxides are discussed separately.
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Affiliation(s)
- Ivan A Yaremenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Dmitry V Demchuk
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Alexander O Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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Shao LD, Xu J, Li XN, Zhang ZJ, Shi X, Ren J, He J, Zhao Y, Leng Y, Xia C, Zhao QS. Synthesis of hupehenols A, B, and E from protopanaxadiol. RSC Adv 2016. [DOI: 10.1039/c6ra04236h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A unified semisynthesis approach from protopanaxadiol to hupehenols A, B, and E was described. The synthesis provided the primary SAR and the possibility of further medicinal development of hupehenols.
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Ilić G, Gaguly R, Petković M, Vidović D. Oxidation of a P-C Bond under Mild Conditions. Chemistry 2015; 21:18594-7. [PMID: 26472311 DOI: 10.1002/chem.201503922] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Indexed: 11/08/2022]
Abstract
The reactivity of phosphenium dication [(Ph3P)2C-P-NiPr2](2+), 1(2+), towards pyridine N-oxide (O-py) has been investigated. The resulting oxophosphonium dication [(Ph3P)2C(NiPr2)P(O)(O-py)](2+), 2(2+), was surprisingly stabilized by a less nucleophilic O-py ligand instead of pyridine (py). This compound was then identified as an analogue of the elusive Criegee intermediate as it underwent oxygen insertion into the P-C bond through a mechanism usually observed for Baeyer-Villiger oxidations. This oxygen insertion appears to be the first example of a Baeyer-Villiger oxidation involving O-py.
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Affiliation(s)
- Gordana Ilić
- SPMS-Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, (Singapore), Fax: (+65) 6791-1961
| | - Rakesh Gaguly
- SPMS-Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, (Singapore), Fax: (+65) 6791-1961
| | - Milena Petković
- Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade (Republic of Serbia).
| | - Dragoslav Vidović
- SPMS-Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, (Singapore), Fax: (+65) 6791-1961.
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Ghosh S, Acharyya SS, Singh R, Gupta P, Bal R. Fabrication of Ag/WO3 nanobars for Baeyer–Villiger oxidation using hydrogen peroxide. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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50
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Preparation and Catalytic Property of Multi-walled Carbon Nanotubes Supported Keggin-Typed Tungstosilicic Acid for the Baeyer–Villiger Oxidation of Ketones. Catal Letters 2015. [DOI: 10.1007/s10562-015-1601-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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