1
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Zhang Q, Zhang J, Qian H, Ma S. Aerobic Oxidation of PMB Ethers to Carboxylic Acids. Chemistry 2024; 30:e202401815. [PMID: 38925594 DOI: 10.1002/chem.202401815] [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: 05/09/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 06/28/2024]
Abstract
The first aerobic protocol of direct transformation of p-methoxybenzyl (PMB) ethers to carboxylic acids efficiently with Fe(NO3)3 ⋅ 9H2O and TEMPO as catalysts at room temperature has been developed. The reaction accommodates C-Br bond, terminal/non-terminal C-C triple bond, amide, cyano, nitro, ester, and trifluoromethyl groups. Even highly selective oxidative deprotection of different benzylic PMB ethers has been realized. The reaction has been successfully applied to the total synthesis of natural product, (R)-6-hydroxy-7,9-octadecadiynoic acid, demonstrating the practicality of the method. Based on experimental studies, a possible mechanism involving oxygen-stabilized benzylic cation has been proposed.
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Affiliation(s)
- Qian Zhang
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, China
| | - Jiabin Zhang
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, 310027, Zhejiang Province, China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, China
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, 310027, Zhejiang Province, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
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2
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Singh S, Mukherjee TK. Photosensitizer-free singlet oxygen generation via a charge transfer transition involving molecular O 2 toward highly efficient oxidative coupling of arylamines to azoaromatics. Chem Sci 2024:d4sc04115a. [PMID: 39144455 PMCID: PMC11320377 DOI: 10.1039/d4sc04115a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 07/26/2024] [Indexed: 08/16/2024] Open
Abstract
Photosensitizer (PS)-mediated generation of singlet oxygen, O2 (a1Δg) is a well-explored phenomenon in chemistry and biology. However, the requirement of appropriate PSs with optimum excited state properties is a prerequisite for this approach which limits its widespread application. Herein, we report the generation of O2 (a1Δg) via direct charge-transfer (CT) excitation of the solvent-O2 (X3Σg -) collision complex without any PS and utilize it for the catalyst-free oxidative coupling of arylamines to azoaromatics under ambient conditions in aqueous medium. Electron paramagnetic resonance (EPR) spectroscopy revealed the formation of O2 (a1Δg) upon direct excitation with 370 nm light. The present approach shows broad substrate scope, remarkably fast reaction kinetics (90 and 40 min under an open and O2 atm, respectively), high selectivity (100%), and excellent yields (up to 100%), and works well for both homo- and hetero-coupling of arylamines. The oxidative coupling of arylamines was found to proceed through the generation of amine radicals via electron transfer (ET) from amines to O2 (a1Δg). Notably, electron-rich amines show higher yields of azo products compared to electron-deficient amines. Detailed mechanistic investigations using various spectroscopic tools revealed the formation of hydrazobenzene as an intermediate along with superoxide radicals which subsequently transform to hydrogen peroxide. The present study is unique in the way that molecular O2 simultaneously acts as a light-absorbing chromophore (solvent-O2 complex) as well as an efficient oxidant (O2 (a1Δg)) in the same reaction. This is the first report on the efficient, selective, and sustainable synthesis of azo compounds in aqueous medium under an ambient atmosphere without any PCs/PSs and paves the way for further in-depth understanding of the chemical reactivity of O2 (a1Δg) generated directly via CT excitation of the solvent-O2 complex toward various photochemical and photobiological transformations.
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Affiliation(s)
- Shivendra Singh
- Department of Chemistry, Indian Institute of Technology Indore Indore 453552 Madhya Pradesh India
| | - Tushar Kanti Mukherjee
- Department of Chemistry, Indian Institute of Technology Indore Indore 453552 Madhya Pradesh India
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3
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Wei DD, Mo LM, Zhang JY, Zhang YS, Duan HM, Zhang B, Wang HY. Bi-ligand-fabricated CdS quantum dots to photo-induce aqueous-phase aldol condensation for biomass-derived carbonyl compounds. Chem Commun (Camb) 2024; 60:2752-2755. [PMID: 38189978 DOI: 10.1039/d3cc05179j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
CdS QDs were fabricated using bi-ligands 11-sulfanylundecanoic acid and proline for photo-induced aqueous-phase aldol condensation of biomass-derived furfural compounds and ketones, and they displayed acceptable selectivity, activity and recycling properties for generation of a wide range of products with diverse applications. This work facilitates understanding the molecular-level design concepts of semiconductor photocatalysts.
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Affiliation(s)
- Dong-Dong Wei
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Liu-Meng Mo
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Jing-Yu Zhang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Yong-Shuai Zhang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Hui-Min Duan
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Bin Zhang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
| | - Hong-Yan Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
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4
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Ye T, Li Y, Ma Y, Tan S, Li F. Aerobic Benzylic C(sp 3)-H Bond Oxygenations Catalyzed by NBS under Visible Light Irradiation. J Org Chem 2024; 89:534-540. [PMID: 38131349 DOI: 10.1021/acs.joc.3c02284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
An efficient photocatalytic oxidation of benzylic C(sp3)-H bonds to ketones, esters, and amides has been developed using NBS as a metal-free photocatalyst and O2 as an oxidant. A variety of synthetically and biologically valuable compounds are assembled in moderate to excellent yields. The synthetic utility of this approach has been demonstrated by gram-scale experiments. A possible free radical mechanism was proposed to rationalize the reaction procedure.
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Affiliation(s)
- Taiqiang Ye
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yuzheng Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yanni Ma
- Henan Natural Products Biotechnology Co., LTD, Henan Academy of Sciences, Zhengzhou 450002, China
| | - Shenpeng Tan
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Feng Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
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5
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Kader DA, Mohammed SJ. Emerging developments in dye-sensitized metal oxide photocatalysis: exploring the design, mechanisms, and organic synthesis applications. RSC Adv 2023; 13:26484-26508. [PMID: 37671346 PMCID: PMC10476557 DOI: 10.1039/d3ra05098j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 08/22/2023] [Indexed: 09/07/2023] Open
Abstract
In the present day, the incorporation of environmentally conscious practices in the realm of photocatalysis holds a prominent position within the domain of organic synthesis. The imperative to tackle environmental issues linked to catalysts that cannot be recycled, generation of waste, byproducts, and challenges in achieving reaction selectivity during organic synthesis are more crucial than ever. One potential solution involves the integration of recyclable nanomaterials with light as a catalyst, offering the possibility of achieving sustainable and atom-efficient transformations in organic synthesis. Metal oxide nanoparticles exhibit activation capabilities under UV light, constituting a small percentage (4-8%) of sunlight. However, this method lacks sufficient environmental friendliness, and the issue of electron-hole recombination poses a significant hurdle. To tackle these challenges, multiple approaches have been proposed. This comprehensive review article focuses on the efficacy of dyes in enhancing the capabilities of heterogeneous photocatalysts, offering a promising avenue to overcome the constraints associated with metal oxides in their role as photocatalysts. The article delves into the intricate design aspects of dye-sensitized photocatalysts and sheds light on their mechanisms in facilitating organic transformations.
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Affiliation(s)
- Dana A Kader
- Department of Chemistry, College of Education, University of Sulaimani Old Campus 46001 Kurdistan Region Iraq
| | - Sewara J Mohammed
- Anesthesia Department, College of Health Sciences, Cihan University Sulaimaniya Sulaimani 46001 Kurdistan Region Iraq
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani 46002 Kurdistan Regional Government Iraq
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6
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Ji G, Zhao L, Tang Y, Liu S, Wang Y, He C, Duan C. Ultrathin 2D Cerium-Based Metal-Organic Framework Nanosheet That Boosts Selective Oxidation of Inert C(sp 3 )H Bond through Multiphoton Excitation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300597. [PMID: 36938902 DOI: 10.1002/smll.202300597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The development of methodologies for inducing and tailoring activities of catalysts is an important issue in various catalysis. The ultrathin 2D monolayer metal-organic framework (MOF) nanosheets with more accessible active sites and faster diffusion obtained by exfoliating 3D layered MOFs are of great potential as heterogeneous catalysts, but the rational design and preparation of 3D layered MOFs remains a grand challenge. Herein, a novel weak electrostatic interaction strategy to construct a 3D layered cerium-bearing MOF by coordinating chlorine-capped cerium nodes and linear photoactive methyl viologen (MV+ ) organic linkers is used. Under multiphoton excitation, the MV+ ligands and CeCl chromophores are triggered consecutively to form the high activity chlorine radical (Cl• ) for activation of inert C(sp3 )H bond through a hydrogen atom transfer. Benefiting from framework confinement effects, synergistic effects of two active sites and/or flexibility of the ultrathin framework nanosheets with high surface utilization, the observed activities increase in the order CeCl3 /MV+ < bulk 3D MOF crystals < 2D MOF nanosheets in photocatalysis. This work not only contributes a new strategy to construct 3D layered MOFs and their ultrathin nanosheets but also paves the way to use nanostructured MOFs to handle synergy of multiple molecular catalysts.
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Affiliation(s)
- Guanfeng Ji
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yang Tang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Songtao Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yefei Wang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Cheng He
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
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7
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Immobilizing highly catalytically active Ni particles inside carbon matrix for enhanced photocatalytic degradation. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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8
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Zhao J, Chen Y, Guan R, Cheng X, Wu Z, Zhao N, Shang Q, Sun Y. Enhancement of water soluble PDI-NapSO3H on the photocatalytic performance of Fe-TiO2 under visible light. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Pan ZT, Qi XK, Xiao Q, Liang XW, Zhong JJ, Jian JX, Tong QX. Regulable cross-coupling of alcohols and benzothiazoles via a noble-metal-free photocatalyst under visible light. Chem Commun (Camb) 2022; 58:8810-8813. [PMID: 35838543 DOI: 10.1039/d2cc03234a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we realize a regulable cross-coupling reaction using alcohols as alkylating reagents to functionalize benzothiazoles. Two types of cross-coupling products are obtained with the highest isolated yields of up to 99% and 90% for alkyl- and acetyl-derived benzothiazoles, respectively, which opens up a broad research prospect for expanding alcohols as alkylating reagents.
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Affiliation(s)
- Zi-Tong Pan
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
| | - Xu-Kuan Qi
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong, 518055, China
| | - Qian Xiao
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
| | - Xi-Wen Liang
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
| | - Jian-Ji Zhong
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
| | - Jing-Xin Jian
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
| | - Qing-Xiao Tong
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, Shantou University, Shantou, Guangdong, 515063, China.
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10
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Ji G, Zhao L, Wei J, Cai J, He C, Du Z, Cai W, Duan C. A Metal–Organic Framework as a Multiphoton Excitation Regulator for the Activation of Inert C(sp
3
)−H Bonds and Oxygen. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guanfeng Ji
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Jianwei Wei
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Junkai Cai
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Cheng He
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Zenggang Du
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Wei Cai
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
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11
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Yu YH, Huang SL, Yang GY. [Ru(NꓥNꓥN)2-Ce]-based Framework for Photocatalytic Sulfide Oxidation and Hydrogen Production. CrystEngComm 2022. [DOI: 10.1039/d2ce00397j] [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
Using photosensitized Ru(NꓥNꓥN)2-metalloligand, a series of Ce-frameworks were synthesized. The incorporation of visible-light-responsive Ru(NꓥNꓥN)2-unit endows the Ce-frameworks with photocatalytic activities in both sulfide oxidation and hydrogen production. The doping of...
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12
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Two transition-metal-modified Nb/W mixed-addendum polyoxometalates for visible-light-mediated aerobic benzylic C–H oxidations. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Ji G, Zhao L, Wei J, Cai J, He C, Du Z, Cai W, Duan C. A Metal-Organic Framework as a Multiphoton Excitation Regulator for the Activation of Inert C(sp 3 )-H Bonds and Oxygen. Angew Chem Int Ed Engl 2021; 61:e202114490. [PMID: 34747102 DOI: 10.1002/anie.202114490] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 11/07/2022]
Abstract
The activation and oxidization of inert C(sp3 )-H bonds into value-added chemicals affords attractively economic and ecological benefits as well as central challenge in modern chemistry. Inspired by the natural enzymatic transformation, herein, we report a new multiphoton excitation approach to activate the inert C(sp3 )-H bonds and oxygen by integrating the photoinduced electron transfer (PET), ligand-to-metal charge transfer (LMCT) and hydrogen atom transfer (HAT) events together into one metal-organic framework. The well-modified nicotinamide adenine dinucleotide (NAD+ ) mimics oxidized CeIII -OEt moieties to generate CeIV -OEt chromophore and its reduced state mimics NAD. via PET. The in situ formed CeIV -OEt moiety triggers a LMCT excitation to form the alkoxy radical EtO. , abstracts a hydrogen atom from the C(sp3 )-H bond, accompanying the recovery of CeIII -OEt and the formation of alkyl radicals. The formed NAD. activates oxygen to regenerate the NAD+ for next recycle, wherein, the activated oxygen species interacts with the intermediates for the oxidization functionalization, paving a catalytic avenue for developing scalable and sustainable synthetic strategy.
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Affiliation(s)
- Guanfeng Ji
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Jianwei Wei
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Junkai Cai
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Cheng He
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Zenggang Du
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Wei Cai
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China
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14
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Yip WM, Yu Q, Tantipanjaporn A, Chan WC, Deng JR, Ko BCB, Wong MK. Synthesis of new quinolizinium-based fluorescent compounds and studies on their applications in photocatalysis. Org Biomol Chem 2021; 19:8507-8515. [PMID: 34542126 DOI: 10.1039/d1ob00716e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Quinoliziniums, cationic aromatic heterocycles bearing a quaternary bridgehead nitrogen, have been widely used as fluorescent dyes, DNA intercalators, ionic liquids etc. A library of new quinolizinium compounds was synthesized from quinolines and internal alkyne substrates in up to 65% isolated yields. Systematic studies of their photophysical properties were conducted. The quinoliziniums have been used in three visible-light-induced photocatalysis reactions with good yields.
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Affiliation(s)
- Wai-Ming Yip
- The Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen, 518057, People's Republic of China.
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
| | - Qiong Yu
- The Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen, 518057, People's Republic of China.
| | - Ajcharapan Tantipanjaporn
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
| | - Wing-Cheung Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
| | - Jie-Ren Deng
- The Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen, 518057, People's Republic of China.
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
| | - Ben Chi-Bun Ko
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
| | - Man-Kin Wong
- The Hong Kong Polytechnic University, Shenzhen Research Institute, Shenzhen, 518057, People's Republic of China.
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hum, Hong Kong.
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15
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Krylov IB, Lopat’eva ER, Subbotina IR, Nikishin GI, Yu B, Terent’ev AO. Mixed hetero-/homogeneous TiO2/N-hydroxyimide photocatalysis in visible-light-induced controllable benzylic oxidation by molecular oxygen. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63831-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Tang C, Qiu X, Cheng Z, Jiao N. Molecular oxygen-mediated oxygenation reactions involving radicals. Chem Soc Rev 2021; 50:8067-8101. [PMID: 34095935 DOI: 10.1039/d1cs00242b] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Molecular oxygen as a green, non-toxic and inexpensive oxidant has displayed lots of advantages compared with other oxidants towards more selective, sustainable, and environmentally benign organic transformations. The oxygenation reactions which employ molecular oxygen or ambient air as both an oxidant and an oxygen source provide an efficient route to the synthesis of oxygen-containing compounds, and have been demonstrated in practical applications such as pharmaceutical synthesis and late-stage functionalization of complex molecules. This review article introduces the recent advances of radical processes in molecular oxygen-mediated oxygenation reactions. Reaction scopes, limitations and mechanisms are discussed based on reaction types and catalytic systems. Conclusions and perspectives are also given in the end.
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Affiliation(s)
- Conghui Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China.
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China. and State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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17
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Zhang Y, Mao LL, Hu S, Luan Y, Cong H. Photo-induced anti-Markovnikov hydroalkylation of unactivated alkenes employing a dual-component initiator. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.06.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Cannalire R, Pelliccia S, Sancineto L, Novellino E, Tron GC, Giustiniano M. Visible light photocatalysis in the late-stage functionalization of pharmaceutically relevant compounds. Chem Soc Rev 2020; 50:766-897. [PMID: 33350402 DOI: 10.1039/d0cs00493f] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The late stage functionalization (LSF) of complex biorelevant compounds is a powerful tool to speed up the identification of structure-activity relationships (SARs) and to optimize ADME profiles. To this end, visible-light photocatalysis offers unique opportunities to achieve smooth and clean functionalization of drugs by unlocking site-specific reactivities under generally mild reaction conditions. This review offers a critical assessment of current literature, pointing out the recent developments in the field while emphasizing the expected future progress and potential applications. Along with paragraphs discussing the visible-light photocatalytic synthetic protocols so far available for LSF of drugs and drug candidates, useful and readily accessible synoptic tables of such transformations, divided by functional groups, will be provided, thus enabling a useful, fast, and easy reference to them.
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Affiliation(s)
- Rolando Cannalire
- Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy.
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19
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Mei L, Veleta JM, Gianetti TL. Helical Carbenium Ion: A Versatile Organic Photoredox Catalyst for Red-Light-Mediated Reactions. J Am Chem Soc 2020; 142:12056-12061. [DOI: 10.1021/jacs.0c05507] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Liangyong Mei
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - José M. Veleta
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Thomas L. Gianetti
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
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20
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Wang L, Wang H, Wang Y, Shen M, Li S. Photocatalyzed synthesis of unsymmetrical ureas via the oxidative decarboxylation of oxamic acids with PANI-g-C3N4-TiO2 composite under visible light. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151962] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Chen J, Allyson ZG, Xin J, Guan Z, He Y. Photo‐Mediated Decarboxylative Ketonization of Atropic Acids with Sulfonyl Hydrazides: Direct Access to
β
‐Ketosulfones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901525] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jie Chen
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical EngineeringSouthwest University Chongqing 400715 People's Republic of China
| | - Zoe G. Allyson
- Department of ChemistryCollege of Saint Benedict and Saint John's University Collegeville MN 56321 USA
| | - Jing‐Rui Xin
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical EngineeringSouthwest University Chongqing 400715 People's Republic of China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical EngineeringSouthwest University Chongqing 400715 People's Republic of China
| | - Yan‐Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical EngineeringSouthwest University Chongqing 400715 People's Republic of China
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22
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Affiliation(s)
- Sebastian Gisbertz
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Chemistry and BiochemistryFreie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Bartholomäus Pieber
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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23
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He S, Chai J, Lu S, Mu X, Liu R, Wang Q, Chen F, Li Y, Wang J, Wang B. Solution-phase vertical growth of aligned NiCo 2O 4 nanosheet arrays on Au nanosheets with weakened oxygen-hydrogen bonds for photocatalytic oxygen evolution. NANOSCALE 2020; 12:6195-6203. [PMID: 32133481 DOI: 10.1039/c9nr10899h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Vertical heterojunctions of two-dimensional (2D) semiconducting materials have attracted more and more research interest recently due to their unique optical, electrical, and catalytic properties and potential applications. Although great progress has been made, vertical integration of the layered materials formed by 2D semiconductor nanosheets and 2D plasmatic metal nanosheets remains a huge challenge. Here, we demonstrate for the first time a solution-phase growth of vertical plasmatic metal-semiconductor heterostructures in which aligned NiCo2O4 nanosheet arrays vertically grow on a single Au nanosheet, forming vertically aligned NiCo2O4-Au-NiCo2O4 sandwich-type heterojunctions with hierarchical open channels. Such vertical NiCo2O4-Au-NiCo2O4 heterojunctions can effectively promote the separation and transfer of a photoinduced charge. Density functional theory (DFT) studies and time-resolved transient absorption spectroscopy show that electrons transfer from NiCo2O4 to Au, and the formation of the heterojunction weakens the H-O bond of H2O. Due to the unique structure and superiority of the component, the vertical NiCo2O4-Au-NiCo2O4 heterojunctions exhibit significant activity with an O2 production rate of up to 33 μmol h-1 and long-term stability for photocatalytic water oxidation. We calculated the apparent quantum efficiency (AQE) to be 21.9% for NiCo2O4-Au-NiCo2O4 heterojunctions at the wavelength λ = 450 ± 10 nm, which is higher than that of NiCo2O4 nanosheets (10.9%), Au nanosheets (0.96%) and other photocatalysts. The present study paves the way for the controlled synthesis of novel vertical heterojunctions based on 2D semiconductor nanosheets and 2D metal nanosheets for efficient photocatalysis.
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Affiliation(s)
- Suisui He
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu, Lanzhou, 730000, P.R. China.
| | - Jian Chai
- School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China.
| | - Siyu Lu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Xijiao Mu
- School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China.
| | - Ruitong Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu, Lanzhou, 730000, P.R. China.
| | - Qiang Wang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu, Lanzhou, 730000, P.R. China.
| | - Fengjuan Chen
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu, Lanzhou, 730000, P.R. China.
| | - Yuee Li
- School of Information Science and Engineering, Lanzhou University, Lanzhou 730000, China.
| | - Jingang Wang
- Liaoning Shihua University, Fushun 113001, China
| | - Baodui Wang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Lanzhou University Gansu, Lanzhou, 730000, P.R. China.
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24
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Dana S, Dey P, Patil SA, Baidya M. Enhancing Ru(II)-Catalysis with Visible-Light-Mediated Dye-Sensitized TiO 2 Photocatalysis for Oxidative C-H Olefination of Arene Carboxylic Acids at Room Temperature. Chem Asian J 2020; 15:564-567. [PMID: 32003942 DOI: 10.1002/asia.201901718] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/08/2020] [Indexed: 11/12/2022]
Abstract
Erythrosine B sensitized TiO2 photocatalysis has been combined with Ru(II)-catalysis to accomplish an oxidative olefination/annulation of benzoic acids with activated olefins under mild conditions that tolerates useful functionalities, such as halides, free hydroxy, acetamido, etc. The morphology of the photocatalyst is unaffected during the reaction and it can be reused. Mechanistic studies favor the involvement of a photo-induced single electron transfer process.
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Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Purusattam Dey
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Siddappa A Patil
- Centre for Nano and Material Sciences, Jain University, Ramanagara District, 562112, Bangalore Rural Karnataka, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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25
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Li P, Xiao G, Zhao Y, Su H. Tuning the Product Selectivity of the α-Alkylation of Ketones with Primary Alcohols using Oxidized Titanium Nitride Photocatalysts and Visible Light. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04921] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Peifeng Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Gang Xiao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yilin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Haijia Su
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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26
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Abstract
Solar radiation is becoming increasingly appreciated because of its influence on living matter and the feasibility of its application for a variety of purposes. It is an available and everlasting natural source of energy, rapidly gaining ground as a supplement and alternative to the nonrenewable energy feedstock. Actually, an increasing interest is involved in the development of efficient materials as the core of photocatalytic and photothermal processes, allowing solar energy harvesting and conversion for many technological applications, including hydrogen production, CO2 reduction, pollutants degradation, as well as organic syntheses. Particularly, photosensitive nanostructured hybrid materials synthesized coupling inorganic semiconductors with organic compounds, and polymers or carbon-based materials are attracting ever-growing research attention since their peculiar properties overcome several limitations of photocatalytic semiconductors through different approaches, including dye or charge transfer complex sensitization and heterostructures formation. The aim of this review was to describe the most promising recent advances in the field of hybrid nanostructured materials for sunlight capture and solar energy exploitation by photocatalytic processes. Beside diverse materials based on metal oxide semiconductors, emerging photoactive systems, such as metal-organic frameworks (MOFs) and hybrid perovskites, were discussed. Finally, future research opportunities and challenges associated with the design and development of highly efficient and cost-effective photosensitive nanomaterials for technological claims were outlined.
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27
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Koohgard M, Hosseinpour Z, Sarvestani AM, Hosseini-Sarvari M. ARS–TiO2 photocatalyzed direct functionalization of sp2 C–H bonds toward thiocyanation and cyclization reactions under visible light. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02268f] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An ARS–TiO2 photocatalyst has been prepared, by a simple method through stirring a mixture of ARS and TiO2 at room temperature in the dark, to extend the photocatalytic response of titanium dioxide toward the visible light spectrum.
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28
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Zhao G, Hu B, Busser GW, Peng B, Muhler M. Photocatalytic Oxidation of α-C-H Bonds in Unsaturated Hydrocarbons through a Radical Pathway Induced by a Molecular Cocatalyst. CHEMSUSCHEM 2019; 12:2795-2801. [PMID: 31045308 DOI: 10.1002/cssc.201900394] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/16/2019] [Indexed: 06/09/2023]
Abstract
To improve the photocatalytic oxidation of α-C-H bonds in unsaturated hydrocarbons, N-hydroxyphthalimide (NHPI) was used as a molecular cocatalyst with CdS as the photoabsorber. Compared with previously reported photocatalysts involving solid cocatalysts, metal-free NHPI offers better sustainability in addition to the significantly enhanced performance as cocatalyst. The photogenerated holes were transferred into the more active phthalimide-N-oxyl radical (PINO) by reacting with NHPI. In this way, α-C-H bond oxidation was significantly improved through the activation by PINO; even for the sluggish toluene oxidation, the apparent quantum efficiency was as high as 36.5 %. The effects of substrates/NHPI concentration ratio, reaction temperature, and time as well as the reaction intermediates were comprehensively studied. It was possible to identify ketones/aldehydes as the primary products, and overoxidation was controlled by adjusting the substrates/NHPI concentration ratio and reaction time. Thus, the radical path induced by the NHPI-PINO redox pair is an efficient alternative to boost the sluggish photocatalytic oxidation of α-C-H bonds.
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Affiliation(s)
- Guixia Zhao
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Bin Hu
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - G Wilma Busser
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Baoxiang Peng
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
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29
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Sun X, Yan L, Xu R, Xu M, Zhu Y. Surface modification of TiO2 with polydopamine and its effect on photocatalytic degradation mechanism. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Yang F, Zhao J, Tang X, Wu Y, Yu Z, Meng Q. Visible Light‐Induced Salan‐Copper(II)‐Catalyzed Enantioselective Aerobic α‐Hydroxylation of β‐Keto Esters. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801263] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Fan Yang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
| | - Jingnan Zhao
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
| | - Xiaofei Tang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
| | - Yufeng Wu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
| | - Zongyi Yu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
| | - Qingwei Meng
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and TechnologyDalian University of Technology Dalian 116024 People's Republic of China
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31
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Geng S, Xiong B, Zhang Y, Zhang J, He Y, Feng Z. Thiyl radical promoted iron-catalyzed-selective oxidation of benzylic sp3 C–H bonds with molecular oxygen. Chem Commun (Camb) 2019; 55:12699-12702. [DOI: 10.1039/c9cc06584a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A ligand-free iron-catalyzed method for the oxygenation of benzylic sp3 C–H bonds by molecular oxygen (1 atm) using a thiyl radical as a cocatalyst has been developed.
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Affiliation(s)
- Shasha Geng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
| | - Baojian Xiong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
| | - Yun Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
| | - Juan Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research
- School of Pharmaceutical Sciences
- Chongqing University
- Chongqing
- P. R. China
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32
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Riente P, Noël T. Application of metal oxide semiconductors in light-driven organic transformations. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01170f] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we provide an up-to-date overview of metal oxide semiconductors (MOS) as versatile and inexpensive photocatalysts to enable light-driven organic transformations.
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Affiliation(s)
- Paola Riente
- Micro Flow Chemistry and Synthetic Methodology
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - Timothy Noël
- Micro Flow Chemistry and Synthetic Methodology
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
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33
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Cheng H, Xu W. Recent advances in modified TiO2 for photo-induced organic synthesis. Org Biomol Chem 2019; 17:9977-9989. [DOI: 10.1039/c9ob01739a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The recent advancements of modified TiO2 materials as photocatalysts for organic synthesis are summarized.
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Affiliation(s)
- Haojie Cheng
- School of Information Management
- Nanjing University
- Nanjing 210023
- China
| | - Wentao Xu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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34
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Ding A, Li S, Chen Y, Jin R, Ye C, Hu J, Guo H. Visible light-induced 4-phenylthioxanthone-catalyzed aerobic oxidation of triarylphosphines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Chen H, Guo L, Yu S. Primary, Secondary, and Tertiary γ-C(sp3)–H Vinylation of Amides via Organic Photoredox-Catalyzed Hydrogen Atom Transfer. Org Lett 2018; 20:6255-6259. [DOI: 10.1021/acs.orglett.8b02737] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hui Chen
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Liangliang Guo
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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36
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Shah SS, Paul A, Bera M, Venkatesh Y, Singh NDP. Metallaphotoredox-Mediated Csp2–H Hydroxylation of Arenes under Aerobic Conditions. Org Lett 2018; 20:5533-5536. [PMID: 30179488 DOI: 10.1021/acs.orglett.8b01973] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sk. Sheriff Shah
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Amrita Paul
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Manoranjan Bera
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Yarra Venkatesh
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - N. D. Pradeep Singh
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
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37
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Weng WZ, Liang H, Zhang B. Visible-Light-Mediated Aerobic Oxidation of Organoboron Compounds Using in Situ Generated Hydrogen Peroxide. Org Lett 2018; 20:4979-4983. [DOI: 10.1021/acs.orglett.8b02095] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Wei-Zhi Weng
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Hao Liang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
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38
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Ren L, Cong H. Visible-Light-Driven Decarboxylative Alkylation of C-H Bond Catalyzed by Dye-Sensitized Semiconductor. Org Lett 2018; 20:3225-3228. [PMID: 29781273 DOI: 10.1021/acs.orglett.8b01077] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A decarboxylative alkylation of benzylic C(sp3)-H bonds of N-aryl tetrahydroisoquinolines under the irradiation of blue light is reported, featuring a broad substrate scope, low cost, heavy-metal-free, and mild conditions. A preliminary mechanistic study indicated that radical intermediates are involved during the course of the reaction.
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Affiliation(s)
- Li Ren
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing , 100190 , China.,School of Future Technology , University of Chinese Academy of Sciences , Beijing , 100190 , China
| | - Huan Cong
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials , Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing , 100190 , China.,School of Future Technology , University of Chinese Academy of Sciences , Beijing , 100190 , China
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39
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Takenaka H, Masuhara Y, Narita K, Nokami T, Itoh T. Synthesis of 2,2-difluoro-homoallylic alcohols via ring-opening of gem-difluorocyclopropane and aerobic oxidation by photo-irradiation in the presence of an organic pigment. Org Biomol Chem 2018; 16:6106-6114. [PMID: 30091778 DOI: 10.1039/c8ob01740a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aerobic oxidation took place after the visible light-mediated ring-opening reaction of gem-difluorocyclopropane in the presence of an organic dye and amine to furnish 2,2-difluoro-homoallylic alcohols in good yields.
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Affiliation(s)
- Hiroaki Takenaka
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Yoshihiro Masuhara
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Kent Narita
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
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40
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Hosseini-Sarvari M, Koohgard M, Firoozi S, Mohajeri A, Tavakolian H. Alizarin red S–TiO2-catalyzed cascade C(sp3)–H to C(sp2)–H bond formation/cyclization reactions toward tetrahydroquinoline derivatives under visible light irradiation. NEW J CHEM 2018. [DOI: 10.1039/c8nj00476e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A very low amount of organic dye (Alizarin red S) sensitized TiO2 and it was successfully used to catalyze cascade C(sp3)–H to C(sp2)–H bond formation/cyclization reactions under visible light irradiation.
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Affiliation(s)
| | - Mehdi Koohgard
- Department of Chemistry, Shiraz University
- Shiraz 7194684795
- Islamic Republic of Iran
| | - Somayeh Firoozi
- Department of Chemistry, Shiraz University
- Shiraz 7194684795
- Islamic Republic of Iran
| | - Afshan Mohajeri
- Department of Chemistry, Shiraz University
- Shiraz 7194684795
- Islamic Republic of Iran
| | - Hosein Tavakolian
- Department of Chemistry, Shiraz University
- Shiraz 7194684795
- Islamic Republic of Iran
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Zhang P, Cao X, Yang H, Zheng H. A Simple Method for Synthesis of Thioamides and Application in Synthesis of 1,2,4-Thiadiazoles. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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