1
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Shen D, Sun C, Han Y, Luo Z, Ren T, Zhang Q, Huang W, Xie J, Jia Y, Chao M. Additive-free oxychlorination of unsaturated C-C bonds with tert-butyl hypochlorite and water. Org Biomol Chem 2024; 22:3080-3085. [PMID: 38563263 DOI: 10.1039/d4ob00003j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Herein we report an additive-free protocol for the facile synthesis of α,α-dichloroketones and α-chlorohydrins from various aryl terminal, diaryl internal, and aliphatic terminal alkynes and alkenes, respectively. The commercially available tert-butyl hypochlorite (tBuOCl) was employed as a suitable chlorinating reagent, being accompanied by the less harmful tBuOH as the by-product. In addition, the oxygen atoms in the products came from water rather than molecular oxygen, based on the 18O-labelling experiments. Meanwhile, the diastereoselectivity of the Z- and the corresponding E-alkenes has been compared and rationalized. Using a group of control experiments, the possible mechanisms have been proposed as the initial electrophilic chlorination of unsaturated C-C bonds in a Markovnikov-addition manner in general followed by a nucleophilic addition with water. This work simplified the oxychlorination method with a mild chlorine source and a green oxygen source under ambient conditions.
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Affiliation(s)
- Duyi Shen
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Chaoyue Sun
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Yun Han
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Zhen Luo
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Ting Ren
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Qin Zhang
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Wenting Huang
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Jianru Xie
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Ying Jia
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
| | - Mianran Chao
- Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, P. R. China.
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2
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Pramod Charpe V, Gupta M, Chu Hwang K. Visible-Light-Induced Oxidative α-keto-Dichlorination of Arylalkynes by CuCl 2 at Room Temperature. CHEMSUSCHEM 2022; 15:e202200957. [PMID: 35730105 DOI: 10.1002/cssc.202200957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/21/2022] [Indexed: 06/15/2023]
Abstract
A visible light-induced oxidative α-keto-dichlorination of terminal and internal aryl alkynes was developed to form dichloroacetophenones (DCAPs) and dichlorophenyl-acetophenones (DCPAPs), respectively, by using CuCl2 as a photoredox catalyst in the presence of air at room temperature (without using any exogenous photocatalyst). Here, photoexcited CuCl2 underwent ligand-to-metal charge transfer to generate a Cl radical, which readily added to the alkynes to form DCAPs or DCPAPs in the presence of O2 . This α-keto-dichlorination reaction is a green and mild protocol as it produced water as the only by-product. Moreover, the evaluation of green chemistry metrics indicated that the E-factor (mass of wastes/mass of products) of the current α-keto-chlorination method is around 10.1 times lower than that of a literature-reported photochemical method. The Eco Scale value (score 55, which on a scale of 0-100 indicates an acceptable synthesis) signifies that this process is simple, highly efficient, eco-friendly, and cost-effective.
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Affiliation(s)
| | - Mahima Gupta
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R. O. C
| | - Kuo Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R. O. C
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3
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Yang H, Huang N, Wang N, Shen H, Teng F, Liu X, Jiang H, Tan MC, Gui QW. Ultrasound-Assisted Iodination of Imidazo[1,2-α]pyridines Via C-H Functionalization Mediated by tert-Butyl Hydroperoxide. ACS OMEGA 2021; 6:25940-25949. [PMID: 34660956 PMCID: PMC8515396 DOI: 10.1021/acsomega.1c02645] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/05/2021] [Indexed: 05/15/2023]
Abstract
A novel metal catalyst-free and environmentally friendly method for the regioselective iodination of imidazo[1,2-α]pyridines at their C3 position is disclosed, which has a wide substrate scope and could be sustainable. This reaction proceeds through ultrasound acceleration in the presence of a green alcohol solvent. Compared with a conventional heating system, the reaction efficiency and the rate are significantly improved and the iodine atom economy is maximized using ultrasound techniques.
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Affiliation(s)
- Hua Yang
- College
of Bioscience and Biotechnology, Hunan Agricultural
University, Changsha 410128, People’s Republic
of China
| | - Ning Huang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Nengqing Wang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Haicheng Shen
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Fan Teng
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Xiaoying Liu
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Hongmei Jiang
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Mei-Chen Tan
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
| | - Qing-Wen Gui
- School
of Chemistry and Materials Science, Hunan
Agricultural University, Changsha 410128, People’s Republic
of China
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4
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Tu D, Luo J, Jiang W, Tang Q. Solvent-free preparation of α,α-dichloroketones with sulfuryl chloride. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153335] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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5
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Nguyen LA, Ngo QA, Retailleau P, Nguyen TB. Break‐and‐Build Strategy for the Synthesis of 2‐Benzoylbenzoxazoles from
o
‐Aminophenols and Acetophenones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100150] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Le Anh Nguyen
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Quoc Anh Ngo
- Institute of Chemistry Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris-Sud Université Paris-Saclay 1 avenue de la Terrasse 91198 Gif-sur-Yvette France
| | - Thanh Binh Nguyen
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris-Sud Université Paris-Saclay 1 avenue de la Terrasse 91198 Gif-sur-Yvette France
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6
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Day DP, Vargas JAM, Burtoloso ACB. Synthetic Routes Towards the Synthesis of Geminal α-Difunctionalized Ketones. CHEM REC 2021; 21:2837-2854. [PMID: 33533538 DOI: 10.1002/tcr.202000176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/11/2021] [Indexed: 12/25/2022]
Abstract
The importance of gem-difunctionalized ketones is represented by their broad applications across chemical boundaries over recent years. The interesting reactivities that this class of compounds possess have made them ideal building blocks to access high-value organic molecules. Furthermore, the gem-difunctionalized ketone moiety has featured in numerous bioactive molecules. For these reasons, a plethora of routes to access such significant molecules have been developed by research groups worldwide - this account looks at delineating the synthesis of gem-difunctionalized ketones from carbonyl substrates, diazo compounds, sulfur ylides and alkynyl reactants.
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Affiliation(s)
- David P Day
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
| | - Jorge A M Vargas
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil.,Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 # 62-00 Campus Pampalinda, Santiago de Cali, Colombia
| | - Antonio C B Burtoloso
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
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7
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Scheide MR, Nicoleti CR, Martins GM, Braga AL. Electrohalogenation of organic compounds. Org Biomol Chem 2021; 19:2578-2602. [DOI: 10.1039/d0ob02459g] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review we target sp, sp2 and sp3 carbon fluorination, chlorination, bromination and iodination reactions using electrolysis as a redox medium. Mechanistic insights and substrate reactivity are also discussed.
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Affiliation(s)
- Marcos R. Scheide
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Celso R. Nicoleti
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Guilherme M. Martins
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
| | - Antonio L. Braga
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Florianópolis
- Brazil
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8
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Nikishin GI, Kapustina NI, Sokova LL, Bityukov OV, Terent'ev AO. H2O2/HCl system: Oxidation-chlorination of secondary alcohols to α,α′-dichloro ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Li Z, Sun Q, Qian P, Hu K, Zha Z, Wang Z. Electrochemical synthesis of α,α-dihaloacetophenones from terminal alkyne derivatives. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.02.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Sadhukhan S, Santhi J, Baire B. The α,α‐Dihalocarbonyl Building Blocks: An Avenue for New Reaction Development in Organic Synthesis. Chemistry 2020; 26:7145-7175. [DOI: 10.1002/chem.201905475] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/08/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Jampani Santhi
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
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11
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Meng X, Zhang Y, Luo J, Wang F, Cao X, Huang S. Electrochemical Oxidative Oxydihalogenation of Alkynes for the Synthesis of α,α-Dihaloketones. Org Lett 2020; 22:1169-1174. [DOI: 10.1021/acs.orglett.0c00052] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangtai Meng
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yu Zhang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Rd, Hangzhou, Zhejiang 310014, P. R. China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
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12
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Liu Y, Xiong J, Wei L, Wan J. Switchable Synthesis of α,α‐Dihalomethyl and α,α,α‐Trihalomethyl Ketones by Metal‐Free Decomposition of Enaminone C=C Double Bond. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901234] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yunyun Liu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 People's Republic of China
| | - Jin Xiong
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 People's Republic of China
| | - Li Wei
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 People's Republic of China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 People's Republic of China
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13
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Crespo LT, Senra MR, Esteves PM, de Mattos MC. Tribromoisocyanuric Acid as a Green Cohalogenating Reagent: An Efficient Transformation of Alkynes into α,α-Dibromoketones and Vicinal Dibromoalkenes. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666180803152951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The co-halogenation reaction of alkynes with tri-bromoisocyanuric acid in acetic acid, followed by aqueous work-up produced α,α-di-bromoketones (44-84%), while the reaction in aqueous acetonitrile in the presence of KBr produced vicinal di-bromoalkenes (66-86%). The usefulness of the methodology was demonstrated employing green metrics for the comparison of TBCA with analogous N-halo reagents in co-halogenation reactions of alkynes.
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Affiliation(s)
- Lívia T.C. Crespo
- Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mônica R. Senra
- Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pierre M. Esteves
- Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcio C.S. de Mattos
- Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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14
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Li Y, Mou T, Lu L, Jiang X. Visible-light-promoted oxidative halogenation of alkynes. Chem Commun (Camb) 2019; 55:14299-14302. [DOI: 10.1039/c9cc07655g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In nature, halogenation promotes the biological activity of secondary metabolites, especially geminal dihalogenation.
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Affiliation(s)
- Yiming Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Tao Mou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Lingling Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- East China Normal University
- Shanghai 200062
- P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences
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15
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Finck L, Brals J, Pavuluri B, Gallou F, Handa S. Micelle-Enabled Photoassisted Selective Oxyhalogenation of Alkynes in Water under Mild Conditions. J Org Chem 2018; 83:7366-7372. [DOI: 10.1021/acs.joc.7b03143] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Lucie Finck
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, Kentucky 40292, United States
| | - Jeremy Brals
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, Kentucky 40292, United States
| | - Bhavana Pavuluri
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, Kentucky 40292, United States
| | | | - Sachin Handa
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, Kentucky 40292, United States
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