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Wang XY, Lao HE, Zhang HY, Wang Y, Zhang Q, Wu JQ, Li YF, Zhu HJ, Mao JY, Pan Y. HOO • as the Chain Carrier for the Autocatalytic Photooxidation of Benzylic Alcohols. Molecules 2024; 29:3429. [PMID: 39065007 DOI: 10.3390/molecules29143429] [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: 04/26/2024] [Revised: 07/14/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024] Open
Abstract
The oxidation of benzylic alcohols is an important transformation in modern organic synthesis. A plethora of photoredox protocols have been developed to achieve the aerobic oxidation of alcohols into carbonyls. Recently, several groups described that ultraviolet (UV) or purple light can initiate the aerobic oxidation of benzylic alcohols in the absence of an external catalyst, and depicted different mechanisms involving the photoinduction of •O2- as a critical reactive oxygen species (ROS). However, based on comprehensive mechanistic investigations, including control experiments, radical quenching experiments, EPR studies, UV-vis spectroscopy, kinetics studies, and density functional theory calculations (DFT), we elucidate here that HOO•, which is released via the H2O2 elimination of α-hydroxyl peroxyl radicals [ArCR(OH)OO•], serves as the real chain carrier for the autocatalytic photooxidation of benzylic alcohols. The mechanistic ambiguities depicted in the precedent literature are clarified, in terms of the crucial ROS and its evolution, the rate-limiting step, and the primary radical cascade. This work highlights the necessity of stricter mechanistic analyses on UV-driven oxidative reactions that involve aldehydes' (or ketones) generation.
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Affiliation(s)
- Xiao-Yu Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Huan-E Lao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Hao-Yue Zhang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yi Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Qing Zhang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jie-Qing Wu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yu-Feng Li
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Hong-Jun Zhu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jian-You Mao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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2
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Boivin L, Schlachter A, Fortin D, Harvey PD. Truxene-to-Fluorenone Energy Transfer in a Robust Mesoporous Zn-MOF. Inorg Chem 2023. [PMID: 38109694 DOI: 10.1021/acs.inorgchem.3c02536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
A new metal-organic framework (MOF; [Zn4O(hett)4/3(fluo)1/2(bdc)1/2]n; TFT-MOF) constructed on chromophoric ligands 5,5',10,10',15,15'-hexaethyltruxene-2,7,12-triacetate (hett), 9-fluorenone-2,7-dicarboxylate (fluo), terephthalate (bdc), and the Zn4O node has been prepared and identified by powder X-ray diffraction. This luminescent MOF exhibits large mesoporous pores of 2.7 nm based on computer modeling using density functional theory (DFT) calculations. The steady-state and time-resolved fluorescence spectra and photophysical parameters of TFT-MOF have been investigated and compared with those of the free ligands and their basic chromophores. All in all, TFT-MOF exhibits particularly efficient singlet-singlet energy-transfer processes described as 1(hett)* → (fluo) and 1(bdc)* → (fluo), leading to fluorescence arising for the fluo lumophore operating only through Förster resonance energy transfer (FRET) with an efficiency of transfer of up to >95%. This experimental conclusion was corroborated by DFT and time-dependent DFT (TDDFT). For the 1(hett)* → (fluo) process, the approximated overall rate constant of energy transfer was evaluated to be at most 2.04 × 1010 s-1 (using a Stern-Volmer approach of solution data and the relationship between distance and concentration). This process was analyzed using the Förster theory, where two intrapore energy transfer paths of center-to-center distances of 13 and 25 Å have been identified. TFT-MOF photosensitizes the formation of singlet oxygen (1O2 (1Σg)) as detected by its phosphorescence signal at 1275 nm.
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Affiliation(s)
- Léo Boivin
- Département de Chimie, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - Adrien Schlachter
- Département de Chimie, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - Daniel Fortin
- Département de Chimie, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - Pierre D Harvey
- Département de Chimie, Université de Sherbrooke, Québec J1K 2R1, Canada
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3
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Zade VM, Gangnale LD, Athawale PR, Reddy DS. Direct Deoxygenation of α-Hydroxy and α,β-Dihydroxy Ketones Using a Silyl Lithium Reagent. J Org Chem 2023; 88:14227-14235. [PMID: 37728533 DOI: 10.1021/acs.joc.3c01613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
A reliable method for the one-step direct deoxygenation of α-hydroxy ketones has been developed using a silyl lithium reagent and acetic anhydride. The method is metal-catalyst-free and does not require prefunctionalization of the hydroxy group prior to its removal. Deoxygenation of different primary, secondary, and tertiary alcohols was carried out with up to 98% isolated yield. Additionally, double deoxygenation was achieved when the present method was applied to α,β-dihydroxy ketones to access the corresponding enones in a single step.
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Affiliation(s)
- Vishal M Zade
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Laxmikant D Gangnale
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, Telangana 500007, India
| | - Paresh R Athawale
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - D Srinivasa Reddy
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, Telangana 500007, India
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4
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Zhao J, Luo Z, Liu Y, Xu J, Huang Z, Xiong W. Photochemical oxidation of alcohols to ketones or aldehydes using DMSO as an oxidant without activated agent. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Abbasi S, Reza Naimi‐Jamal M, Javanshir S, Heydari A. Selective Oxidation of Alcohols through Fe 3 O 4 @SiO 2 /K 2 CO 3 -Glycerin Deep Eutectic Solvent as a Heterogeneous Catalytic System. Chemistry 2022; 11:e202200172. [PMID: 36457168 PMCID: PMC9716035 DOI: 10.1002/open.202200172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/15/2022] [Indexed: 12/03/2022]
Abstract
K2 CO3 /Glycerin as a deep eutectic solvent (DES) was anchored covalently onto functionalized magnetic nanoparticles and showed a significant activity towards the oxidation of various alcohols under mild conditions with a short reaction time and good to high yield. A combination of the magnetic nanoparticles and deep eutectic solvent offers a novel, green, reusable catalyst with easy separation. Also, the catalyst structure was well characterized using techniques such as FT-IR spectroscopy, XRD, SEM, TGA, BET, VSM, TEM, and energy-dispersive X-ray spectroscopy (EDS).
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Affiliation(s)
- Sepideh Abbasi
- Research Laboratory of Green Organic Synthesis & PolymersDepartment of ChemistryIran University of Science and Technology (IUST)16846-13114TehranIran
| | - Mohammad Reza Naimi‐Jamal
- Research Laboratory of Green Organic Synthesis & PolymersDepartment of ChemistryIran University of Science and Technology (IUST)16846-13114TehranIran
| | - Shahrzad Javanshir
- Heterocyclic Chemistry Research LaboratoryChemistry DepartmentIran University of Science and Technology16846-13114TehranIran
| | - Akbar Heydari
- Chemistry DepartmentTarbiat Modares University14155-4838TehranIran
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6
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Peng X, Liu Y, Shen Q, Chen D, Chen X, Fu Y, Wang J, Zhang X, Jiang H, Li J. BODIPY Photocatalyzed Beckmann Rearrangement and Hydrolysis of Oximes under Visible Light. J Org Chem 2022; 87:11958-11967. [PMID: 36044674 DOI: 10.1021/acs.joc.2c00813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel, efficient, and mild protocol for rearrangement of oximes to amides or hydrolyzing to ketone/aldehyde using a simple BODIPY dye as a photocatalyst and air as an oxidant via propagation reaction under visible-light irradiation is reported. The triplet excited state of BODIPY played a significant role in the catalytic process. It was found that the various substituted ketoximes, both with electron-withdrawing and electron-donating substituents, afforded the corresponding products with moderate to excellent yields, and the catalytic efficiency was up to 0.01 mol %.
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Affiliation(s)
- Xiaoyan Peng
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Yutong Liu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Qing Shen
- Department of Pharmacy, Sichuan Academy of Medical Science Sichuan Provincial People's Hospital/Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Dan Chen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Xueqin Chen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Yuning Fu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Jingxia Wang
- Irradiation Preservation Technology Key Laboratory of Sichuan Province, Sichuan Institute of Atomic Energy, Chengdu 610101, China
| | - Xiaobin Zhang
- Irradiation Preservation Technology Key Laboratory of Sichuan Province, Sichuan Institute of Atomic Energy, Chengdu 610101, China
| | - Hezhong Jiang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
| | - Jiahong Li
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610041, China
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7
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Hou ZW, Zhang MM, Yang WC, Wang L. Catalyst- and Oxidizing Reagent-Free Electrochemical Benzylic C(sp 3)-H Oxidation of Phenol Derivatives. J Org Chem 2022; 87:7806-7817. [PMID: 35648817 DOI: 10.1021/acs.joc.2c00455] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A site-selective electrochemical approach for the benzylic C(sp3)-H oxidation reaction of phenol derivatives along with hydrogen evolution has been developed. The protocol proceeds in an easily available undivided cell at room temperature under catalyst- and oxidizing reagent-free conditions. The corresponding aryl aldehydes and ketones are obtained in satisfactory yields, and the gram-scale synthesis is easy to be carried out.
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Affiliation(s)
- Zhong-Wei Hou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang, Taizhou 318000, P. R. China
| | - Ming-Ming Zhang
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Jiangsu, Yangzhou 225009, P. R. China
| | - Wen-Chao Yang
- Guangling College and School of Horticulture and Plant Protection, Yangzhou University, Jiangsu, Yangzhou 225009, P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang, Zhejiang, Taizhou 318000, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
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8
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Wang Z, Qin Y, Huang H, Li G, Xu Y, Jin P, Peng B, Zhao Y. Solvent Effect on Product Distribution in the Aerobic Autoxidation of 2-Ethylhexanal: Critical Role of Polarity. Front Chem 2022; 10:855843. [PMID: 35402373 PMCID: PMC8989829 DOI: 10.3389/fchem.2022.855843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
In the aerobic oxidation of aldehydes to acids, how the solvent affect the reaction remains unclear. Herein, the solvent effect in the oxidation of 2-ethylhexanal (2-ETH) to 2-ethylhexanoic acid (2-ETA) was systematically investigated. The vastly different product distributions were observed which could be ascribed to the dominant intermolecular forces. Though strong intermolecular forces in protic solvents limit the oxidation, the optimal 2-ETA yield (96%) was obtained in ipropanol via gradually evaporating the solvent to remove the interactions. Theoretical calculations further revealed that the hydrogen bonds between reactant and protic solvent increase the C-H bond energy (-CHO in 2-ETH). Meanwhile, the hydrogen bonds may improve 2-ETA selectivity by promoting H transfer in the oxidation rearrangement step. Our work discloses the critical role of polarity in determining the reactivity and selectivity of 2-ETH oxidation, and could guide the rational design of more desirable reaction processes with solvent effect.
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Affiliation(s)
- Zheng Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yitong Qin
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Huijiang Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Guobing Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yan Xu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Peng Jin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China
- *Correspondence: Peng Jin, ; Bo Peng, ; Yujun Zhao,
| | - Bo Peng
- SINOPEC Research Institute of Petroleum Processing, Beijing, China
- *Correspondence: Peng Jin, ; Bo Peng, ; Yujun Zhao,
| | - Yujun Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- *Correspondence: Peng Jin, ; Bo Peng, ; Yujun Zhao,
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9
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Shen T, Liu S, Zhao J, Wang N, Yang L, Wu J, Shen X, Liu ZQ. Electrochemical Aerobic Oxidative Cleavage of (sp 3)C-C(sp 3)/H Bonds in Alkylarenes. J Org Chem 2022; 87:3286-3295. [PMID: 35188765 DOI: 10.1021/acs.joc.1c02947] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An electrochemistry-promoted oxidative cleavage of (sp3)C-C(sp3)/H bonds in alkylarenes was developed. Various aryl alkanes can be smoothly converted into ketones/aldehydes under aerobic conditions using a user-friendly undivided cell setup. The features of air as oxidant, scalability, and mild conditions make them attractive in synthetic organic chemistry.
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Affiliation(s)
- Tong Shen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.,Institute of Molecular Sciences, University of Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Shuai Liu
- Institute of Molecular Sciences, University of Bordeaux, 351 Cours de la Libération, 33405 Talence, France
| | - Jianyou Zhao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Nengyong Wang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Le Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jintao Wu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xu Shen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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10
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Torregrosa-Chinillach A, Chinchilla R. Visible Light-Induced Aerobic Oxidative Dehydrogenation of C-N/C-O to C=N/C=O Bonds Using Metal-Free Photocatalysts: Recent Developments. Molecules 2022; 27:497. [PMID: 35056812 PMCID: PMC8780101 DOI: 10.3390/molecules27020497] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/31/2021] [Accepted: 01/11/2022] [Indexed: 12/14/2022] Open
Abstract
Performing synthetic transformation using visible light as energy source, in the presence of a photocatalyst as a promoter, is currently of high interest, and oxidation reactions carried out under these conditions using oxygen as the final oxidant are particularly convenient from an environmental point of view. This review summarizes the recent developments achieved in the oxidative dehydrogenation of C-N and C-O bonds, leading to C=N and C=O bonds, respectively, using air or pure oxygen as oxidant and metal-free homogeneous or recyclable heterogeneous photocatalysts under visible light irradiation.
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Affiliation(s)
| | - Rafael Chinchilla
- Department of Organic Chemistry, Faculty of Sciences, Institute of Organic Synthesis (ISO), University of Alicante, Apdo. 99, 03080 Alicante, Spain;
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11
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Deuterated N-difluoromethylthiophthalimide: A stable, scalable reagent for radical and electrophilic deuteriodifluoromethylthiolations. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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You G, Yan J. A CF
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Na‐Mediated Photocatalytic Strategy for Aerobic C3‐H Fluoroalkoxylation of Quinoxalinones with Fluoroalkyl Alcohols. ChemistrySelect 2021. [DOI: 10.1002/slct.202103693] [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)
- Guirong You
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
- Pharmacy College Shandong First Medical University (Shandong Academy of Medical Sciences) Taian 271000 China
| | - Jizhong Yan
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
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13
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Kaboudin B, Ghashghaee M, Bigdeli A, Farkhondeh A, Eskandari M, Esfandiari H. Recent Advances on the Application of Langlois’ Reagent in Organic Transformations. ChemistrySelect 2021. [DOI: 10.1002/slct.202103867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Babak Kaboudin
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
| | - Mojtaba Ghashghaee
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
| | - Akram Bigdeli
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
| | - Amir Farkhondeh
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
| | - Mahboobe Eskandari
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
| | - Hesam Esfandiari
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Gava Zang Zanjan 45137-66731 Iran
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14
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Ranjan R, Kundu BK, Kyarikwal R, Ganguly R, Mukhopadhyay S. Synthesis of Cu(II) complexes by N,O‐donor ligand transformation and their catalytic role in visible‐light‐driven alcohol oxidation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rishi Ranjan
- Department of Chemistry, School of Basic Sciences Indian Institute of Technology Indore Indore India
| | - Bidyut Kumar Kundu
- Department of Chemistry, School of Applied Science Centurion University of Technology and Management Bhubaneswar India
| | - Reena Kyarikwal
- Department of Chemistry, School of Basic Sciences Indian Institute of Technology Indore Indore India
| | - Rakesh Ganguly
- Department of Chemistry Shiv Nadar University Greater Noida India
| | - Suman Mukhopadhyay
- Department of Chemistry, School of Basic Sciences Indian Institute of Technology Indore Indore India
- Department of Biosciences and Biomedical Engineering, School of Engineering Indian Institute of Technology Indore Indore India
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15
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Xu JX, Pan NL, Chen JX, Zhao JW. Visible-Light-Mediated Oxidative Cyclization of 2-Aminobenzyl Alcohols and Secondary Alcohols Enabled by an Organic Photocatalyst. J Org Chem 2021; 86:10747-10754. [PMID: 34296858 DOI: 10.1021/acs.joc.1c01386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This paper describes a visible-light-mediated oxidative cyclization of 2-aminobenzyl alcohols and secondary alcohols to produce quinolines at room temperature. This photocatalytic method employed anthraquinone as an organic small-molecule catalyst and DMSO as an oxidant. According to this present procedure, a series of quinolines were prepared in satisfactory yields.
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Affiliation(s)
- Jing-Xiu Xu
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
| | - Nan-Lian Pan
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
| | - Jia-Xi Chen
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
| | - Jin-Wu Zhao
- School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
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16
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Li T, Hammond GB, Xu B. Cobalt-Catalyzed Aerobic Oxidative Cleavage of Alkyl Aldehydes: Synthesis of Ketones, Esters, Amides, and α-Ketoamides. Chemistry 2021; 27:9737-9741. [PMID: 34010489 DOI: 10.1002/chem.202101035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 12/17/2022]
Abstract
A widely applicable approach was developed to synthesize ketones, esters, amides via the oxidative C-C bond cleavage of readily available alkyl aldehydes. Green and abundant molecular oxygen (O2 ) was used as the oxidant, and base metals (cobalt and copper) were used as the catalysts. This strategy can be extended to the one-pot synthesis of ketones from primary alcohols and α-ketoamides from aldehydes.
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Affiliation(s)
- Tingting Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
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17
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Zhang MZ, Tian J, Yuan M, Peng WQ, Wang YZ, Wang P, Liu L, Gou Q, Huang H, Chen T. Visible light-induced aerobic dioxygenation of α,β-unsaturated amides/alkenes toward selective synthesis of β-oxy alcohols using rose bengal as a photosensitizer. Org Chem Front 2021. [DOI: 10.1039/d1qo00149c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The first visible light-induced aerobic dioxygenation of alkenes for the selective synthesis of β-oxy alcohols was developed using non-toxic rose bengal as a photosensitizer.
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