1
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Askerova U, Abdullayev Y, Shikhaliyev N, Maharramov A, Nenajdenko VG, Autschbach J. Computational exploration of the copper(I)-catalyzed conversion of hydrazones to dihalogenated vinyldiazene derivatives. J Comput Chem 2024; 45:2098-2103. [PMID: 38760058 DOI: 10.1002/jcc.27433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/19/2024]
Abstract
This computational study explores the copper (I) chloride catalyzed synthesis of (E)-1-(2,2-dichloro-1-phenylvinyl)-2-phenyldiazene (2Cl-VD) from readily available hydrazone derivative and carbon tetrachloride (CCl4). 2Cl-VD has been extensively utilized to synthesize variety of heterocyclic organic compounds in mild conditions. The present computational investigations primarily focus on understanding the role of copper (I) and N1,N1,N2,N2-tetramethylethane-1,2-diamine (TMEDA) in this reaction, TMEDA often being considered a proton scavenger by experimentalists. Considering TMEDA as a ligand significantly alters the energy barrier. In fact, it is only 8.3 kcal/mol higher compared to the ligand-free (LF) route for the removal of a chlorine atom to form the radical ·CCl3 but the following steps are almost barrierless. This intermediate then participates in attacking the electrophilic carbon in the hydrazone. Crucially, the study reveals that the overall potential energy surface is thermodynamically favorable, and the theoretical turnover frequency (TOF) value is higher in the case of Cu(I)-TMEDA complex catalyzed pathway.
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Affiliation(s)
- Ulviyya Askerova
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | - Yusif Abdullayev
- Department of Chemical Engineering, Baku Engineering University, Baku, Azerbaijan
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
- Department of Chemistry, Sumgait State University, Sumgait, Azerbaijan
| | - Namiq Shikhaliyev
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | - Abel Maharramov
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | | | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York, USA
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2
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Strauss MJ, Greaves ME, Kim ST, Teijaro CN, Schmidt MA, Scola PM, Buchwald SL. Room-Temperature Copper-Catalyzed Etherification of Aryl Bromides. Angew Chem Int Ed Engl 2024; 63:e202400333. [PMID: 38359082 PMCID: PMC11045308 DOI: 10.1002/anie.202400333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
We disclose the development of a Cu-catalyzed C-O coupling method utilizing a new N1,N2-diarylbenzene-1,2-diamine ligand, L8. Under optimized reaction conditions, structurally diverse aryl and heteroaryl bromides underwent efficient coupling with a variety of alcohols at room temperature using an L8-based catalyst. Notably, the L8-derived catalyst exhibited enhanced activity when compared to the L4-based system previously disclosed for C-N coupling, namely the ability to functionalize aryl bromides containing acidic functional groups. Mechanistic studies demonstrate that C-O coupling utilizing L8 ⋅ Cu involves rate-limiting alkoxide transmetallation, resulting in a mechanism of C-O bond formation that is distinct from previously described Pd-, Cu-, or Ni-based systems. This lower energy pathway leads to rapid C-O bond formation; a 7-fold increase relative to what is seen with other ligands. The results presented in this report overcome limitations in previously described C-O coupling methods and introduce a new ligand that we anticipate may be useful in other Cu-catalyzed C-heteroatom bond-forming reactions.
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Affiliation(s)
- Michael J Strauss
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States of America
| | - Megan E Greaves
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States of America
| | - Seoung-Tae Kim
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States of America
| | - Christiana N Teijaro
- Department of Discovery Chemistry, Bristol-Myers Squibb, Rt. 206 and Province Line Rd., Princeton, NJ 08543, United States of America
| | - Michael A Schmidt
- Chemical Process Development, Bristol-Myers Squibb, 1 Squibb Dr., New Brunswick, NJ 08901, United States of America
| | - Paul M Scola
- Department of Discovery Chemistry, Bristol-Myers Squibb, 250 Water St., Cambridge, MA 02141, United States of America
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States of America
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3
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Arriaga DK, Kang S, Thomas AA. Effect of Solvent on the Rate of Ozonolysis: Development of a Homogeneous Flow Ozonolysis Protocol. J Org Chem 2023; 88:13720-13726. [PMID: 37747787 DOI: 10.1021/acs.joc.3c01372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Herein, we describe the effect of organic solvents on ozone solubility and the rate of ozonolysis reactions using rapid injection NMR spectroscopy. The tabulated solubility and kinetic data allowed for the design of a homogeneous ozonolysis flow reactor capable of delivering precise quantities of dissolved ozone to various olefin substrates.
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Affiliation(s)
- Danniel K Arriaga
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-0001, United States
| | - Seokmin Kang
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-0001, United States
| | - Andy A Thomas
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-0001, United States
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4
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Dalhoff R, Schmidt R, Steeb L, Rabatinova K, Witte M, Teeuwen S, Benjamaâ S, Hüppe H, Hoffmann A, Herres-Pawlis S. The bridge towards a more stable and active side-on-peroxido (Cu 2II(µ-η 2:η 2-O 2)) complex as a tyrosinase model system. Faraday Discuss 2023; 244:134-153. [PMID: 37132380 DOI: 10.1039/d2fd00162d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel dinucleating bis(pyrazolyl)methane ligand was developed for tyrosinase model systems. After ligand synthesis, the corresponding Cu(I) complex was synthesized and upon oxygenation, formation of a µ-η2:η2 peroxido complex could be observed and monitored using UV/Vis-spectroscopy. Due to the high stability of this species even at room temperature, a molecular structure of the complex could be characterized via single-crystal XRD. Additional to its promising stability, the peroxido complex showed catalytic tyrosinase activity which was investigated via UV/Vis-spectroscopy. Products of the catalytic conversion could be isolated and characterized and the ligand could be successfully recycled after catalysis experiments. Furthermore, the peroxido complex was reduced by reductants with different reduction potentials. The characteristics of the electron transfer reactions were investigated with the help of the Marcus relation. The combination of the high stability and catalytic activity of the peroxido complex with the new dinucleating ligand, enables the shift of oxygenation reactions for selected substrates towards green chemistry, which is furthered by the efficient ligand recycling capability.
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Affiliation(s)
- Rosalie Dalhoff
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Regina Schmidt
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Lena Steeb
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Kristina Rabatinova
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Matthias Witte
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Simon Teeuwen
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Salim Benjamaâ
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Henrika Hüppe
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Alexander Hoffmann
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
| | - Sonja Herres-Pawlis
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1a, 52074 Aachen, Germany.
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5
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Cicco L, Roggio M, López‐Aguilar M, Ramos‐Martín M, Perna FM, García‐Álvarez J, Vitale P, Capriati V. Selective Aerobic Oxidation of Alcohols in Low Melting Mixtures and Water and Use for Telescoped One-Pot Hybrid Reactions. ChemistryOpen 2022; 11:e202200160. [PMID: 36229408 PMCID: PMC9560898 DOI: 10.1002/open.202200160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/08/2022] [Indexed: 11/30/2022] Open
Abstract
An efficient, selective and sustainable protocol was developed for the CuCl2 /TEMPO/TMEDA-catalyzed aerobic oxidation of activated alcohols to the corresponding carbonyl compounds using water or the environmentally friendly low melting mixture (LMM) d-fructose-urea as the reaction medium. Such oxidation reactions proceed under mild (room temperature or 40 °C) and aerobic conditions, with the carbonyl derivatives isolated in up to 98 % yield and within 4 h reaction time when using the above-mentioned LMM. The potential application of this methodology is demonstrated by setting up useful telescoped, one-pot two-step hybrid transformations for the direct conversion of primary alcohols either into secondary alcohols or into valuable nitroalkenes, by combining oxidation processes with nucleophilic additions promoted by highly polarized organometallic compounds (Grignard and organolithium reagents) or with nitroaldol (Henry) reactions, respectively.
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Affiliation(s)
- Luciana Cicco
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Marianna Roggio
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Marcos López‐Aguilar
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Marina Ramos‐Martín
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Filippo Maria Perna
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Joaquín García‐Álvarez
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Paola Vitale
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Vito Capriati
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
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6
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Hu J, Zhu Y, Gao H, Zhang F, Zhang Z. Rapid Catalysis for Aerobic Oxidation of Alcohols Based on Nitroxyl-Radical-Free Copper(II) under Ambient Conditions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiaming Hu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yongkang Zhu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hu Gao
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Feng Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhibing Zhang
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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7
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Pedram-rad T, Es'haghi Z, Ahmadpour A, Samadi Kazemi M, Akbar Mohammadi A. Carbon-dot Confined in Graphene-Analogous Boron Nitride for Enhanced Oxidative Desulfurization. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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8
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Efremov AA, Poryvaev AS, Polyukhov DM, Gromilov SA, Fedin MV. Oxidation of benzyl alcohol in the copper-doped ZIF-8 metal-organic framework with encapsulated nitroxyl radical. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3548-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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9
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Su MD, Liu YF, Nie ZW, Yang TL, Cao ZZ, Li H, Luo WP, Liu Q, Guo CC. Regioselective Synthetic Approach to Higher Alkenes from Lower Alkenes with Sulfoxides in the Fe 3+/H 2O 2 System via Direct Alkylation or Arylation of the Csp 2-H Bond on the C═C Bond of Alkenes. J Org Chem 2022; 87:7022-7032. [PMID: 35583475 DOI: 10.1021/acs.joc.2c00047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The regioselective synthetic approach to higher alkenes from lower alkenes by using sulfoxides as alkyl or aryl reagents in the Fe3+/H2O2 system has been developed. This reaction realized direct alkylation or arylation of alkenes. In this reaction, sulfoxides afforded one Csp3 or Csp2 atom to the C═C bond of alkenes; one new Csp2-Csp3 bond or Csp2-Csp2 bond was formed. Nearly 40 products including di-, tri-, and tetra-substituted products were regioselectively synthesized. Both aliphatic and aromatic alkenes could participate in this reaction. Moreover, not only dimethyl sulfoxide but also three other sulfoxides can be applied to this reaction, including diethyl, dibenzyl, and diphenyl sulfoxide. The mechanism studies showed that this reaction may experience a coupling process via radical addition-elimination and the Fe3+/H2O2 system made the sulfoxides offered one alkyl or aryl radical to the C═C bond of alkenes.
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Affiliation(s)
- Miao-Dong Su
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Yu-Feng Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Zhi-Wen Nie
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Tong-Lin Yang
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Zhong-Zhong Cao
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Hui Li
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Wei-Ping Luo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Can-Cheng Guo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
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10
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Wang X, Gao Y, Chen Y, Sun H, Li C, Pang C, Gao Y, Zhang X, Cheng R, Xu H, Wang J. Transition Metal‐Free Aerobic Oxidation of Aryl Secondary and Primary Alcohols to Carbonyl Compounds in Open Air. ChemistrySelect 2022. [DOI: 10.1002/slct.202103502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xuerong Wang
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Yu Gao
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Ying Chen
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Huilin Sun
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Caicui Li
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Chaohai Pang
- Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables Analysis and Test Center Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China
| | - Yanan Gao
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources Hainan University Haikou 570228 China
| | - Xiaolin Zhang
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Ruijing Cheng
- School of Science Qiongtai Normal University Haikou 571127 China
| | - Huanjun Xu
- School of Science Qiongtai Normal University Haikou 571127 China
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources Hainan University Haikou 570228 China
| | - Jinhui Wang
- School of Science Qiongtai Normal University Haikou 571127 China
- Department of Medicinal Chemistry and Natural Medicine Chemistry College of Pharmacy Harbin Medical University Harbin 150081 China
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11
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Zheng S, Smit W, Spannenberg A, Tin S, de Vries JG. Synthesis of α-Keto Aldehydes via Selective Cu(I)-catalyzed Oxidation of α-Hydroxy Ketones. Chem Commun (Camb) 2022; 58:4639-4642. [DOI: 10.1039/d2cc00773h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach to synthesize α-keto aldehydes was established through selective oxidation of α-hydroxy ketones catalyzed by Cu(I) using oxygen as oxidant. A wide array of α-keto aldehydes was prepared...
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12
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Senthamarai T, Chandrashekhar VG, Rockstroh N, Rabeah J, Bartling S, Jagadeesh RV, Beller M. A “universal” catalyst for aerobic oxidations to synthesize (hetero)aromatic aldehydes, ketones, esters, acids, nitriles, and amides. Chem 2021. [DOI: 10.1016/j.chempr.2021.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Ahmad Bhat I, Avinash I, Kumar Sachan S, Singh S, Anantharaman G. Efficient Synthesis of Cu(II)‐
N
‐Heterocyclic Carbene Complexes in Water and Their Activity Towards Aerobic Alcohol Oxidation. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Irshad Ahmad Bhat
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Iruthayaraj Avinash
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Sharad Kumar Sachan
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Sadhana Singh
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
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14
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Singh H, MacKay A, Sheibany N, Chen F, Mosser M, Rouet PÉ, Rousseau F, Askari MS, Ottenwaelder X. Intramolecular H-bond stabilization of a primary hydroxylamine in salen-type metal complexes. Chem Commun (Camb) 2021; 57:10403-10406. [PMID: 34545379 DOI: 10.1039/d1cc03077a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Primary hydroxylamines, RNHOH, decompose readily in the presence of transition metal ions. We show that this reactivity can be arrested by ligand design via an intramolecular hydrogen bond. Six metal complexes with an intact NHOH group were synthesized and crystallographically characterized. The Cu-hydroxylamine complexes can catalyze the aerobic oxidation of benzylic alcohols.
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Affiliation(s)
- Hardeep Singh
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Alyson MacKay
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Nooshin Sheibany
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Fei Chen
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Maëlle Mosser
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Pierre-Étienne Rouet
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Frédéric Rousseau
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Mohammad S Askari
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
| | - Xavier Ottenwaelder
- Department of Chemistry and Biochemistry, Concordia University, Montreal, QC, Canada.
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15
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Vargo NP, Harland JB, Musselman BW, Lehnert N, Ertem MZ, Robinson JR. Calcium‐Ion Binding Mediates the Reversible Interconversion of
Cis
and
Trans
Peroxido Dicopper Cores. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Natasha P. Vargo
- Department of Chemistry Brown University 324 Brook Street Providence RI 02912 USA
| | - Jill B. Harland
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Bradley W. Musselman
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Mehmed Z. Ertem
- Chemistry Division, Energy & Photon Sciences Brookhaven National Laboratory PO Box 5000 Upton NY 11973-5000 USA
| | - Jerome R. Robinson
- Department of Chemistry Brown University 324 Brook Street Providence RI 02912 USA
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16
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Vargo NP, Harland JB, Musselman BW, Lehnert N, Ertem MZ, Robinson JR. Calcium-Ion Binding Mediates the Reversible Interconversion of Cis and Trans Peroxido Dicopper Cores. Angew Chem Int Ed Engl 2021; 60:19836-19842. [PMID: 34101958 DOI: 10.1002/anie.202105421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/07/2021] [Indexed: 01/27/2023]
Abstract
Coupled dinuclear copper oxygen cores (Cu2 O2 ) featured in type III copper proteins (hemocyanin, tyrosinase, catechol oxidase) are vital for O2 transport and substrate oxidation in many organisms. μ-1,2-cis peroxido dicopper cores (C P) have been proposed as key structures in the early stages of O2 binding in these proteins; their reversible isomerization to other Cu2 O2 cores are directly relevant to enzyme function. Despite the relevance of such species to type III copper proteins and the broader interest in the properties and reactivity of bimetallic C P cores in biological and synthetic systems, the properties and reactivity of C P Cu2 O2 species remain largely unexplored. Herein, we report the reversible interconversion of μ-1,2-trans peroxido (T P) and C P dicopper cores. CaII mediates this process by reversible binding at the Cu2 O2 core, highlighting the unique capability for metal-ion binding events to stabilize novel reactive fragments and control O2 activation in biomimetic systems.
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Affiliation(s)
- Natasha P Vargo
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI, 02912, USA
| | - Jill B Harland
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Bradley W Musselman
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Mehmed Z Ertem
- Chemistry Division, Energy & Photon Sciences, Brookhaven National Laboratory, PO Box 5000, Upton, NY, 11973-5000, USA
| | - Jerome R Robinson
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI, 02912, USA
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17
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18
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Macro- and mesoporous Cu2O/Cu3(OH)2(CO3)2 synthesized by supercritical CO2 as an efficient catalyst for alcohol oxidation. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Zhang ZJ, Zhou X, Li D, Chen Y, Xiao WW, Li RT, Shao LD. Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2'-Disubstituted Stilbenes. J Org Chem 2021; 86:7609-7624. [PMID: 33904741 DOI: 10.1021/acs.joc.1c00656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2'-disubstituted stilbenes is described. Under the mild CuCl/DBED/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes were efficiently prepared through the difunctionalizations of alkenes in a highly atom economic manner. Mechanistic investigations suggested the bicyclic product was likely formed through a sequence of rapid single-electron oxidation/[4+4] cyclization from 2,2'-disubstituted stilbene. The antarafacial manner of the thermally allowed [4+4] cyclization was further proven by series of control experiments and density functional theory calculations. Our findings provide an important addition to the aerobic copper-catalyzed oxidative cyclization.
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Affiliation(s)
- Zhi-Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xu Zhou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Yang Chen
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Wen-Wen Xiao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
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20
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Nguyen TT, Nguyen KX, Pham PH, Ly D, Nguyen DK, Nguyen KD, Nguyen TT, Phan NTS. Copper-catalyzed synthesis of pyrido-fused quinazolinones from 2-aminoarylmethanols and isoquinolines or tetrahydroisoquinolines. Org Biomol Chem 2021; 19:4726-4732. [PMID: 33969845 DOI: 10.1039/d1ob00229e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Pyrido-fused quinazolinones were synthesized via copper-catalyzed cascade C(sp2)-H amination and annulation of 2-aminoarylmethanols with isoquinolines or pyridines. The transformation proceeded readily in the presence of a commercially available CuCl2 catalyst with molecular oxygen as a green oxidant. Moreover, the dehydrogenative cross-coupling of 2-aminoarylmethanols with tetrahydroisoquinolines was explored, in which CuBr exhibited higher catalytic activity than CuCl2. Broad substrate scope with good tolerance of functionalities was observed under the optimized reaction conditions. The bioactive naturally occurring alkaloid rutaecarpine could be obtained by this strategy. The remarkable feature of this protocol is that complicated heterocyclic structures are readily achieved in a single synthetic step from easily accessible reactants and catalysts. This pathway to pyrido-fused quinazolinones would be complementary to existing protocols.
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Affiliation(s)
- Thao T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Khang X Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Phuc H Pham
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Duc Ly
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Duyen K Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Khoa D Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tung T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nam T S Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam. and Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
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21
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Barma A, Bhattacharjee A, Roy P. Dinuclear Copper(II) Complexes with N,O Donor Ligands: Partial Ligand Hydrolysis and Alcohol Oxidation Catalysis. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Arpita Barma
- Department of Chemistry Jadavpur University Jadavpur Kolkata 700 032 India
| | | | - Partha Roy
- Department of Chemistry Jadavpur University Jadavpur Kolkata 700 032 India
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22
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Behera PK, Choudhury P, Sahu SK, Sahu RR, Harvat AN, McNulty C, Stitgen A, Scanlon J, Kar M, Rout L. Oxygen Bridged Bimetallic CuMoO
4
Nanocatalyst for Benzylic Alcohol Oxidation; Mechanism and DFT Study. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Laxmidhar Rout
- Department of Chemistry Berhampur University Odisha 760007 India
- Adjunct Faculty Department of Chemistry IISER 760010 Berhampur Odisha India
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23
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Ma R, Xiao Z, Zhong W, Lu C, Shen Z, Zhao D, Liu X. The superiority of cuprous chloride to iodide in the selective aerobic oxidation of benzylic alcohols at ambient temperature. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ruonan Ma
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
- School of Chemistry Nanchang University Nanchang China
| | - Zhiyin Xiao
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
| | - Wei Zhong
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
| | - Chunxin Lu
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
| | - Zhongquan Shen
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
| | - Dan Zhao
- School of Chemistry Nanchang University Nanchang China
| | - Xiaoming Liu
- College of Biological, Chemical Sciences and Engineering Jiaxing University Jiaxing China
- School of Chemistry Nanchang University Nanchang China
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24
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Debnath P, Sahu G, De UC. Synthesis of functionalized pyrimidouracils by ruthenium‐catalyzed oxidative insertion of (hetero)aryl methanols into
N
‐uracil amidines. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pradip Debnath
- Department of Chemistry Maharaja Bir Bikram College Agartala India
| | - Gouranga Sahu
- Department of Chemistry Ramkrishna Mahavidyalaya Unakoti India
| | - Utpal C. De
- Department of Chemistry Tripura University Agartala India
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25
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Wang T, Zhou Y, Xu Y, Cheng GJ. Computational exploration of copper catalyzed vinylogous aerobic oxidation of unsaturated compounds. Sci Rep 2021; 11:1304. [PMID: 33446723 PMCID: PMC7809353 DOI: 10.1038/s41598-020-80188-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/09/2020] [Indexed: 11/23/2022] Open
Abstract
Selective oxidation is one of the most important and challenging transformations in both academic research and chemical industry. Recently, a highly selective and efficient way to synthesize biologically active γ-hydroxy-α,β-unsaturated molecules from Cu-catalyzed vinylogous aerobic oxidation of α,β- and β,γ-unsaturated compounds has been developed. However, the detailed reaction mechanism remains elusive. Herein, we report a density functional theory study on this Cu-catalyzed vinylogous aerobic oxidation of γ,γ-disubstituted α,β- and β,γ-unsaturated isomers. Our computational study unveils detailed mechanism for each elementary step, i.e. deprotonation, O2 activation, and reduction. Besides, the origin of regioselectivity, divergent reactivities of substrates as well as reducing agents, and the byproduct generation have also been investigated. Notably, the copper catalyst retains the + 2 oxidation state through the whole catalytic cycle and plays essential roles in multiple steps. These findings would provide hints on mechanistic studies and future development of transition metal-catalyzed aerobic oxidation reactions.
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Affiliation(s)
- Ting Wang
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China
| | - Yu Zhou
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027, Anhui, China
| | - Yao Xu
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027, Anhui, China
| | - Gui-Juan Cheng
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China.
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26
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Metal-catalyzed biomimetic aerobic oxidation of organic substrates. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Chacón-Huete F, Lasso JD, Szavay P, Covone J, Forgione P. Synthesis of 2,5-Diaryl Nonsymmetric Furans C6-Platform Chemicals via Catalytic Conversion of Biomass and the Formal Synthesis of Dantrolene. J Org Chem 2021; 86:515-524. [PMID: 33253575 DOI: 10.1021/acs.joc.0c02236] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biomass-derived commodity chemical 5-hydroxymethyl furfural is an underutilized C6-platform chemical derived from cellulose that is ideal to prepare next-generation value-added products. We have developed an efficient synthetic strategy to access 2,5-diaryl nonsymmetric furans from 5-hydroxymethyl furfural utilizing decarboxylative cross-couplings. A key finding was that the presence of the hydroxymethyl handle enhances the yields of the palladium-catalyzed decarboxylative cross-coupling reaction. The method provides access to a broad-range nonsymmetric 2,5-diaryl furans where each arene can be systematically introduced as required. Additionally, this green synthetic strategy was employed for a formal synthesis of the muscle relaxant Dantrolene in excellent yields.
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Affiliation(s)
- Franklin Chacón-Huete
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal QC H4B 1R6, Canada.,Centre in Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal QC H3A 2K6, Canada
| | - Juan David Lasso
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal QC H4B 1R6, Canada
| | - Paul Szavay
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal QC H4B 1R6, Canada
| | - Jason Covone
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal QC H4B 1R6, Canada
| | - Pat Forgione
- Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke Street West, Montreal QC H4B 1R6, Canada.,Centre in Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal QC H3A 2K6, Canada
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28
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Ghamari Kargar P, Aryanejad S, Bagherzade G. Simple synthesis of the novel Cu‐MOF catalysts for the selective alcohol oxidation and the oxidative cross‐coupling of amines and alcohols. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5965] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pouya Ghamari Kargar
- Department of Chemistry, Faculty of Sciences University of Birjand Birjand 97175‐615 Iran
| | - Sima Aryanejad
- Department of Chemistry, Faculty of Sciences University of Birjand Birjand 97175‐615 Iran
| | - Ghodsieh Bagherzade
- Department of Chemistry, Faculty of Sciences University of Birjand Birjand 97175‐615 Iran
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29
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Xin H, Duan X, Liu L, Guo L. Metal‐Free, Visible‐Light‐Induced Selective C−C Bond Cleavage of Cycloalkanones with Molecular Oxygen. Chemistry 2020; 26:11690-11694. [DOI: 10.1002/chem.202001032] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Hong Xin
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Xin‐Hua Duan
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Le Liu
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
| | - Li‐Na Guo
- Department of Chemistry School of Chemistry Xi'an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of, Condensed Matter Xi'an Jiaotong University Xi'an 710049 P. R. China
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30
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Bahadorikhalili S, Malek K, Mahdavi M. Efficient One Pot Synthesis of Phenylimidazo[1,2‐
a
]pyridine Derivatives using Multifunctional Copper Catalyst Supported on β‐Cyclodextrin Functionalized Magnetic Graphene oxide. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5913] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Khodadad Malek
- Department of Chemistry Isfahan University of Technology Isfahan 84156‐83111 Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute Tehran University of Medical Sciences Tehran Iran
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31
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CuII- and CoII-Based MOFs: {[La2Cu3(µ-H2O)(ODA)6(H2O)3]∙3H2O}n and {[La2Co3(ODA)6(H2O)6]∙12H2O}n. The Relevance of Physicochemical Properties on the Catalytic Aerobic Oxidation of Cyclohexene. Catalysts 2020. [DOI: 10.3390/catal10050589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aerobic oxidation of cyclohexene was done using the heterometallic metal organic frameworks (MOFs) {[La2Cu3(μ-H2O)(ODA)6(H2O)3]⋅3H2O}n (LaCuODA)) (1) and {[La2Co3(ODA)6(H2O)6]∙12H2O}n (LaCoODA) (2) as catalysts, in solvent free conditions (ODA, oxydiacetic acid). After 24 h of reaction, the catalytic system showed that LaCoODA had a better catalytic performance than that of LaCuODA (conversion 85% and 67%). The structures of both catalysts were very similar, showing channels running along the c axis. The physicochemical properties of both MOFs were determined to understand the catalytic performance. The Langmuir surface area of LaCoODA was shown to be greater than that of LaCuODA, while the acid strength and acid sites were greater for LaCuODA. On the other hand, the redox potential of the active sites was related to CoII/CoIII in LaCoODA and CuII/CuI in LaCuODA. Therefore, it is concluded that the Langmuir surface area and the redox potentials were more important than the acid strength and acid sites of the studied MOFs, in terms of the referred catalytic performance. Finally, the reaction conditions were also shown to play an important role in the catalytic performance of the studied systems. Especially, the type of oxidant and the way to supply it to the reaction medium influenced the catalytic results.
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32
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Bocian A, Gorczyński A, Marcinkowski D, Witomska S, Kubicki M, Mech P, Bogunia M, Brzeski J, Makowski M, Pawluć P, Patroniak V. New benzothiazole based copper(II) hydrazone Schiff base complexes for selective and environmentally friendly oxidation of benzylic alcohols: The importance of the bimetallic species tuned by the choice of the counterion. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Nasibipour M, Safaei E, Wrzeszcz G, Wojtczak A. Tuning of the redox potential and catalytic activity of a new Cu(ii) complex byo-iminobenzosemiquinone as an electron-reservoir ligand. NEW J CHEM 2020. [DOI: 10.1039/c9nj06396j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis and characterization of a new Cu(ii) complex, LNIS2CuII(LNIS=o-iminobenzosemiquinone), are reported.
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Affiliation(s)
| | - Elham Safaei
- Department of Chemistry
- College of Sciences
- Shiraz
- Iran
| | - Grzegorz Wrzeszcz
- Faculty of Chemistry
- Nicolaus Copernicus University in Torun
- 87-100 Torun
- Poland
| | - Andrzej Wojtczak
- Faculty of Chemistry
- Nicolaus Copernicus University in Torun
- 87-100 Torun
- Poland
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34
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Hu Z, Ge H, Yang X. Binuclear O 2 activation and hydrogen transfer mechanism for aerobic oxidation of alcohols. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00025f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory calculations reveal a binuclear O2 activation and hydrogen transfer mechanism with spin-crossovers for aerobic oxidation of alcohols.
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Affiliation(s)
- Zhiyun Hu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
- P. R. China
- University of Chinese Academy of Sciences
| | - Hongyu Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
- P. R. China
- University of Chinese Academy of Sciences
| | - Xinzheng Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry Chinese Academy of Sciences
- Beijing 100190
- P. R. China
- University of Chinese Academy of Sciences
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35
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Zhou J, Huang-Fu X, Huang YY, Cao CN, Han J, Zhao XL, Chen XD. Metal–Organic Framework Based on Heptanuclear Cu–O Clusters and Its Application as a Recyclable Photocatalyst for Stepwise Selective Catalysis. Inorg Chem 2019; 59:254-263. [DOI: 10.1021/acs.inorgchem.9b02084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jie Zhou
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xu Huang-Fu
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yang-Ying Huang
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chu-Ning Cao
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jie Han
- School of Science & Technology, The Open University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory
of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
| | - Xu-Dong Chen
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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36
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Walia PK, Sharma M, Kumar M, Bhalla V. UV light promoted 'Metal'/'Additive'-free oxidation of alcohols: investigating the role of alcohols as electron donors. RSC Adv 2019; 9:36198-36203. [PMID: 35540607 PMCID: PMC9074950 DOI: 10.1039/c9ra06490g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/25/2019] [Indexed: 02/05/2023] Open
Abstract
UV light promoted selective oxidation of primary and secondary alcohols has been demonstrated under ‘metal-free’ and ‘additive-free’ conditions. Under the optimized conditions, a variety of aromatic, heteroaromatic, and alicyclic alcohols have been examined for their transformations to the corresponding carbonyl compounds. The mechanistic studies emphasize the important role of substrate (alcohol) and solvent (DMSO) in the generation of superoxide radical which is a vital intermediate for the transformation. This study also highlights the role of air as the oxidant in the oxidation process. Further, the practical application of the strategy has also been demonstrated for the oxidation of the alcoholic moiety in cholesterol. The present study demonstrates the important role of alcohols themselves as electron donors for their oxidative transformations to the corresponding carbonyl compounds in the absence of any metal/oxidant and external photosensitizer.![]()
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Affiliation(s)
- Preet Kamal Walia
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
| | - Manik Sharma
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
| | - Manoj Kumar
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
| | - Vandana Bhalla
- Department of Chemistry, UGC Sponsored Centre for Advanced Studies-II, Guru Nanak Dev University Amritsar-143005 Punjab India
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37
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Integration of mesopores and crystal defects in metal-organic frameworks via templated electrosynthesis. Nat Commun 2019; 10:4466. [PMID: 31578368 PMCID: PMC6775123 DOI: 10.1038/s41467-019-12268-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/27/2019] [Indexed: 11/21/2022] Open
Abstract
Incorporation of mesopores and active sites into metal-organic framework (MOF) materials to uncover new efficient catalysts is a highly desirable but challenging task. We report the first example of a mesoporous MOF obtained by templated electrosynthesis using an ionic liquid as both electrolyte and template. The mesoporous Cu(II)-MOF MFM-100 has been synthesised in 100 seconds at room temperature, and this material incorporates crystal defects with uncoupled Cu(II) centres as evidenced by confocal fluorescence microscopy and electron paramagnetic resonance spectroscopy. MFM-100 prepared in this way shows exceptional catalytic activity for the aerobic oxidation of alcohols to produce aldehydes in near quantitative yield and selectivity under mild conditions, as well as having excellent stability and reusability over repeated cycles. The catalyst-substrate binding interactions have been probed by inelastic neutron scattering. This study offers a simple strategy to create mesopores and active sites simultaneously via electrochemical formation of crystal defects to promote efficient catalysis using MOFs. Incorporating mesopores and active sites into metal-organic framework materials has proven advantageous for their catalytic application, but remains challenging to achieve. Here the authors obtain mesoporous, defect-rich metal-organic frameworks through templated electrosynthesis using ionic liquids as both electrolyte and template.
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38
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Srivastava V, Singh PK, Singh PP. Eosin Y catalysed visible-light mediated aerobic oxidation of tertiary amines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Abstract
The oxidation of alcohols to the corresponding carbonyl products is an important organic transformation and the products are used in a variety of applications. The development of catalytic methods for selective alcohol oxidation have garnered significant attention in an attempt to find a more sustainable method without any limitations. Copper, in combination with 2,2,6,6-tetramethyl-1-piperidine N-oxyl (TEMPO) and supported by organic ligands, have emerged as the most effective catalysts for selective alcohol oxidation and these catalyst systems are frequently compared to galactose oxidase (GOase). The efficiency of GOase has led to extensive research to mimic the active sites of these enzymes, leading to a variety of Cu/TEMPO· catalyst systems being reported over the years. The mechanistic pathway by which Cu/TEMPO· catalyst systems operate has been investigated by several research groups, which led to partially contradicting mechanistic description. Due to the disadvantages and limitations of employing TEMPO· as co-catalyst, alternative nitroxyl radicals or in situ formed radicals, as co-catalysts, have been successfully evaluated in alcohol oxidation. Herein we discuss the development and mechanistic elucidation of Cu/TEMPO· catalyst systems as biomimetic alcohol oxidation catalysts.
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Affiliation(s)
- Fengtian Wu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and DevicesEast China University of Technology Guanglan Road Nanchang 330013 P. R. China
| | - Mingyang Ma
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and DevicesEast China University of Technology Guanglan Road Nanchang 330013 P. R. China
| | - Jianwei Xie
- College of Chemistry and BioengineeringHunan University of Science and Engineering Yangzitang Road Yongzhou 425100 P. R. China
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Sterckx H, Morel B, Maes BUW. Catalytic Aerobic Oxidation of C(sp 3 )-H Bonds. Angew Chem Int Ed Engl 2019; 58:7946-7970. [PMID: 30052305 DOI: 10.1002/anie.201804946] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Indexed: 01/04/2023]
Abstract
Oxidation reactions are a key technology to transform hydrocarbons from petroleum feedstock into chemicals of a higher oxidation state, allowing further chemical transformations. These bulk-scale oxidation processes usually employ molecular oxygen as the terminal oxidant as at this scale it is typically the only economically viable oxidant. The produced commodity chemicals possess limited functionality and usually show a high degree of symmetry thereby avoiding selectivity issues. In sharp contrast, in the production of fine chemicals preference is still given to classical oxidants. Considering the strive for greener production processes, the use of O2 , the most abundant and greenest oxidant, is a logical choice. Given the rich functionality and complexity of fine chemicals, achieving regio/chemoselectivity is a major challenge. This review presents an overview of the most important catalytic systems recently described for aerobic oxidation, and the current insight in their reaction mechanism.
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Affiliation(s)
- Hans Sterckx
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Bénédicte Morel
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Bert U W Maes
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
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Sterckx H, Morel B, Maes BUW. Katalytische, aerobe Oxidation von C(sp
3
)‐H‐Bindungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201804946] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hans Sterckx
- Department of Chemistry University of Antwerp Groenenborgerlaan 171 B-2020 Antwerpen Belgien
| | - Bénédicte Morel
- Department of Chemistry University of Antwerp Groenenborgerlaan 171 B-2020 Antwerpen Belgien
| | - Bert U. W. Maes
- Department of Chemistry University of Antwerp Groenenborgerlaan 171 B-2020 Antwerpen Belgien
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Chemoselective aerobic oxidation of 2-amino-N-benzylanilines into N-(2-aminophenyl)imines via a nitroxide-free copper catalysis. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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44
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Xu W, Huang Z, Ji X, Lumb JP. Catalytic Aerobic Cross-Dehydrogenative Coupling of Phenols and Catechols. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04443] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wenbo Xu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
| | - Zheng Huang
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Xiang Ji
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
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45
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Jiang X, Liu J, Ma S. Iron-Catalyzed Aerobic Oxidation of Alcohols: Lower Cost and Improved Selectivity. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00374] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xingguo Jiang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinxian Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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46
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Trammell R, Rajabimoghadam K, Garcia-Bosch I. Copper-Promoted Functionalization of Organic Molecules: from Biologically Relevant Cu/O 2 Model Systems to Organometallic Transformations. Chem Rev 2019; 119:2954-3031. [PMID: 30698952 DOI: 10.1021/acs.chemrev.8b00368] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Copper is one of the most abundant and less toxic transition metals. Nature takes advantage of the bioavailability and rich redox chemistry of Cu to carry out oxygenase and oxidase organic transformations using O2 (or H2O2) as oxidant. Inspired by the reactivity of these Cu-dependent metalloenzymes, chemists have developed synthetic protocols to functionalize organic molecules under enviormentally benign conditions. Copper also promotes other transformations usually catalyzed by 4d and 5d transition metals (Pd, Pt, Rh, etc.) such as nitrene insertions or C-C and C-heteroatom coupling reactions. In this review, we summarized the most relevant research in which copper promotes or catalyzes the functionalization of organic molecules, including biological catalysis, bioinspired model systems, and organometallic reactivity. The reaction mechanisms by which these processes take place are discussed in detail.
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Affiliation(s)
- Rachel Trammell
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | | | - Isaac Garcia-Bosch
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
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Zhai D, Ma S. Copper catalysis for highly selective aerobic oxidation of alcohols to aldehydes/ketones. Org Chem Front 2019. [DOI: 10.1039/c9qo00740g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and practical room temperature aerobic oxidation of different types of alcohols using Cu(NO3)2·3H2O and TEMPO or 4-HO-TEMPO as the catalysts forming aldehydes or ketones with an excellent selectivity has been developed.
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Affiliation(s)
- Di Zhai
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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Guo RY, Sun L, Pan XY, Yang XD, Ma S, Zhang J. Application of an electron-transfer catalyst in light-induced aerobic oxidation of alcohols. Chem Commun (Camb) 2018; 54:12614-12617. [PMID: 30346455 DOI: 10.1039/c8cc07137c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first heterogeneous photocatalysis system including a bipyridinium-based complex as the electron-transfer catalyst was developed for aerobic oxidation of alcohols without the use of any noble-metal, external N-oxide or peroxide co-oxidant. The current work provides an efficient strategy for alcohol oxidation through a cost-effective, convenient and eco-friendly route.
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Affiliation(s)
- Rui-Yun Guo
- MOE Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 102488, P. R. China.
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Liu M, Zhang Z, Liu H, Xie Z, Mei Q, Han B. Transformation of alcohols to esters promoted by hydrogen bonds using oxygen as the oxidant under metal-free conditions. SCIENCE ADVANCES 2018; 4:eaas9319. [PMID: 30310866 PMCID: PMC6173529 DOI: 10.1126/sciadv.aas9319] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 08/28/2018] [Indexed: 05/02/2023]
Abstract
One-pot oxidative transformation of alcohols into esters is very attractive, but metal-based catalysts are used in the reported routes. We discovered that the basic ionic liquid 1-ethyl-3-methylimidazolium acetate ([EMIM] OAc) could effectively catalyze this kind of reaction using O2 as an oxidant without any other catalysts or additives. The oxidative self-esterification of benzylic alcohols or aliphatic alcohols and cross-esterification between benzyl alcohols and aliphatic alcohols could all be achieved with high yields. Detailed study revealed that the cation with acidic proton and basic acetate anion could simultaneously form multiple hydrogen bonds with the hydroxyl groups of the alcohols, which catalyzed the reaction very effectively. As far as we know, this is the first work to carry out this kind of reaction under metal-free conditions.
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Affiliation(s)
- Mingyang Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Corresponding author. (B.H.); (Z.Z.)
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qingqing Mei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Corresponding author. (B.H.); (Z.Z.)
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50
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Aerobic Oxidation of Alcohols Catalysed by Cu(I)/NMI/TEMPO System and Its Mechanistic Insights. Catal Letters 2018. [DOI: 10.1007/s10562-018-2485-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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