1
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Liu Y, Zhu Z, Zhang Y, Zhang Y, Liu S, Shen X. Stereoselective Synthesis of Silyl Enol Ethers with Acylsilanes and α,β-Unsaturated Ketones. Org Lett 2024; 26:5911-5916. [PMID: 38975934 DOI: 10.1021/acs.orglett.4c01782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Acylsilanes are emerging bench-stable reagents for the generation of electron-rich oxycarbenes that are difficult to access with unstable diazo compounds. Herein, we report a siloxycarbene-mediated stereoselective synthesis of silyl enol ethers through visible-light-induced intermolecular reactions between acylsilanes and α,β-unsaturated ketones. Both the solvent and low temperature are important for the success of the reaction. This approach features atomic economics, exclusive stereocontrol, and broad substrate scope. The synthetic potential of this methodology is demonstrated by gram-scale reaction and various downstream transformations including that requiring configuration purity of the silyl enol ethers.
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Affiliation(s)
- Ying Liu
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Zhihong Zhu
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Yunxiao Zhang
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Yizhi Zhang
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Shanshan Liu
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Xiao Shen
- The Institute for Advanced Studies, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
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2
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Li HR, Guo XY, Guo MZ, Liu K, Wen LR, Li M, Zhang LB. Electrochemical chemoselective hydrogenation of 1,4-enediones with HFIP as the hydrogen donor: scalable access to 1,4-diketones. Org Biomol Chem 2023; 21:8646-8650. [PMID: 37870475 DOI: 10.1039/d3ob01465g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
A straightforward electrochemical protocol for efficient hydrogenation of unsaturated CC bonds has been reported in an undivided cell. A series of versatile 1,4-diketones are smoothly generated under metal-free and external-reductant-free electrolytic conditions. Moreover, the tolerance of various functional groups and decagram-scale experiments have shown the practicability and potential applications of this methodology. Moreover, a range of heterocyclic compounds were easily prepared through follow-up procedures of 1,4-diketones.
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Affiliation(s)
- Hao-Ran Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Xue-Yang Guo
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Ming-Zhong Guo
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Kui Liu
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
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3
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Fang L, Jia S, Fan S, Zhu J. Palladium-catalyzed coupling of amides and cyclopropanols for the synthesis of γ-diketones. Chem Commun (Camb) 2023; 59:10392-10395. [PMID: 37551733 DOI: 10.1039/d3cc02888g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
A palladium catalytic method has been developed for the coupling of amides and cyclopropanols to γ-diketones, through simultaneous C-N and C-C activation. Heteroatom ligand exchange and heteroatom-to-carbon ligation mode switching enable the achievement of molecular cross-coupling in an amide N-atom structural context-dependent manner, avoiding any stoichiometric organometallic reagent or base.
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Affiliation(s)
- Lili Fang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China.
| | - Shuqi Jia
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China.
| | - Shuaixin Fan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China.
| | - Jin Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China.
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4
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Zhou Y, Zhao L, Hu M, Duan XH, Liu L. Visible-Light Photoredox-Catalyzed Divergent 1,2-Diacylation and Hydroacylation of Alkenes with Carboxylic Acid Anhydride. Org Lett 2023. [PMID: 37413688 DOI: 10.1021/acs.orglett.3c01787] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
A photoredox-catalyzed divergent 1,2-dicarbonylation and hydroacylation of alkenes with acid anhydride is presented. This approach offers a mild and efficient entry to 1,4-dicarbonyl compounds bearing all-carbon quaternary centers, exhibiting a broad substrate scope and high functional group compatibility. Hydrocarbonylaltion of alkenes can also be realized by simply introducing a proton source to the reaction system. Mechanism investigations support a radical addition/radical-polar crossover cascade.
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Affiliation(s)
- Youkang Zhou
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lirong Zhao
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingyou Hu
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Le Liu
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
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5
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Okuda S, Narita Y, Hayashi R, Sai M. Regio- and diastereoselective synthesis of unsymmetrical 1,4-diketone-derived ( Z)-monosilyl enol ethers via siloxyallylpotassium intermediates. Chem Commun (Camb) 2023; 59:2939-2942. [PMID: 36799249 DOI: 10.1039/d2cc07097a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
This paper describes the regio- and diastereoselective synthesis of unsymmetrical 1,4-diketone-derived (Z)-monosilyl enol ethers from 1-arylallyloxysilanes and Weinreb amides using (trimethylsilyl)methylpotassium as a base. The metalation of 1-arylallyloxysilanes to generate siloxyallylpotassiums is the key step in this transformation. The products can be transformed into diverse α-monofunctionalized unsymmetrical 1,4-diketones.
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Affiliation(s)
- Shuto Okuda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | - Yutaka Narita
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | - Rikuo Hayashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | - Masahiro Sai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
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6
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Li JL, Yang SL, Dai QS, Huang H, Jiang L, Li QZ, Wang QW, Zhang X, Han B. Modular synthesis of 1,4-diketones through regioselective bis-acylation of olefins by merging NHC and photoredox catalysis. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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7
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Takeshima A, Kano T. Diethylzinc-Mediated Cross-Coupling Reactions between Dibromoketones and Monobromo Carbonyl Compounds. Angew Chem Int Ed Engl 2023; 62:e202217496. [PMID: 36583678 DOI: 10.1002/anie.202217496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
A novel route to synthesize 1,4-dicarbonyl compounds is described. α,α-Dibromoketones generate zinc enolates through a diethylzinc-mediated halogen-metal exchange and react with α-bromocarbonyl compounds to furnish 1,4-dicarbonyl compounds via a second generation of zinc enolates. This cross-coupling reaction is enabled by the chemoselective formation of zinc enolates from α,α-dibromoketones in the presence of α-bromocarbonyl compounds. Chiral 1,4-dicarbonyl compounds can be obtained via the enantioselective bromination of aldehydes using a chiral secondary amine catalyst and a subsequent cross-coupling reaction between the resulting chiral α-bromoaldehydes and α,α-dibromoacetophenones.
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Affiliation(s)
- Aika Takeshima
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.,Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Taichi Kano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
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8
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Zhao F, Gu X, Franke R, Wu X. Copper‐Catalyzed 1,2‐Dicarbonylative Cyclization of Alkenes with Alkyl Bromides via Radical Cascade Process. Angew Chem Int Ed Engl 2022; 61:e202214812. [PMID: 36254794 PMCID: PMC10100518 DOI: 10.1002/anie.202214812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Indexed: 11/12/2022]
Abstract
Herein, we developed a new procedure on 1,2-dicarbonylative cyclization of 4-aryl-1-butenes with alkyl bromides. Using simple copper catalyst, two molecules of carbon monoxide were introduced into the double bond with the formation of four new C-C bonds and a new ring. Various α-tetralones and 2,3-dihydroquinolin-4-ones were formed in moderate to good yields.
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Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V. 18059 Rostock Germany
| | - Xing‐Wei Gu
- Leibniz-Institut für Katalyse e.V. 18059 Rostock Germany
| | - Robert Franke
- Evonik Performance Materials GmbH Paul-Baumann-Str. 1 45772 Marl Germany
- Lehrstuhl für Theoretische Chemie Ruhr-Universität Bochum 44780 Bochum Germany
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Liaoning Dalian China
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9
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Liu J, Lu LQ, Luo Y, Zhao W, Sun PC, Jin W, Qi X, Cheng Y, Xiao WJ. Photoredox-Enabled Chromium-Catalyzed Alkene Diacylations. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05672] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Liu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yixin Luo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Wei Zhao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Peng-Chao Sun
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, P. R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, P. R. China
| | - Xiaotian Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Ying Cheng
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
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10
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Kong L, Hu X, Bai LP. TBAI-Catalyzed Oxidative Coupling of Benzyl Ketones to Synthesize 2,3-Diaryl-1,4-Diketones in Water. ACS OMEGA 2022; 7:2337-2343. [PMID: 35071921 PMCID: PMC8772304 DOI: 10.1021/acsomega.1c06216] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/30/2021] [Indexed: 05/09/2023]
Abstract
An efficient and green route of C-C bond formation was disclosed to construct 2,3-diaryl-1,4-diketones from α-methylene ketones by the catalysis of tetrabutylammonium iodide (TBAI) with tert-butyl hydroperoxide (TBHP) as an oxidant in water. This reaction affords the desired products in good to excellent yields from readily available materials, with a broad substrate scope, good functional group tolerance, and mild reaction conditions. Furthermore, tetrasubstituted furan and pyrrole were smoothly constructed from α-methylene ketones in one pot with 96 and 90% yields, respectively.
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Affiliation(s)
- Lingkai Kong
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau Institute
for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, People’s Republic
of China
- School
of Chemistry and Chemical Engineering, Linyi
University, Linyi, Shandong 276000, People’s Republic of China
| | - Xueping Hu
- School
of Chemistry and Chemical Engineering, Linyi
University, Linyi, Shandong 276000, People’s Republic of China
| | - Li-Ping Bai
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau Institute
for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau 999078, People’s Republic
of China
- Guangdong-Hong
Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Taipa 999078, People’s Republic of China
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11
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Pearl ES, Fellner DMJ, Söhnel T, Furkert DP, Brimble MA. A Highly Efficient
N
‐Mesityl Thiazolylidene for the Aliphatic Stetter Reaction: Stereoelectronic Quantification for Comparison of N‐Heterocyclic Carbene Organocatalysts. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100445] [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)
- Esperanza S. Pearl
- School of Chemical Sciences The University of Auckland 23 Symonds St Auckland 1010 New Zealand
| | - Daniel M. J. Fellner
- School of Chemical Sciences The University of Auckland 23 Symonds St Auckland 1010 New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences The University of Auckland 23 Symonds St Auckland 1010 New Zealand
| | - Daniel P. Furkert
- School of Chemical Sciences The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery 3 Symonds St Auckland 1010 New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences The University of Auckland 23 Symonds St Auckland 1010 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery 3 Symonds St Auckland 1010 New Zealand
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12
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Dong Y, Li R, Zhou J, Sun Z. Synthesis of Unsymmetrical 1,4-Dicarbonyl Compounds by Photocatalytic Oxidative Radical Additions. Org Lett 2021; 23:6387-6390. [PMID: 34339208 DOI: 10.1021/acs.orglett.1c02208] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we report a photocatalytic oxidative radical addition reaction for the synthesis of unsymmetrical 1,4-dicarbonyl compounds. This reaction utilizes a desulfurization process to generate electrophilic radicals, which add to α-halogenated alkenes and undergo further oxidation to deliver 1,4-dicarbonyl compounds. This mild and highly efficient method provides a valuable alternative to known strategies.
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Affiliation(s)
- Ya Dong
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Ruining Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Junliang Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Zhankui Sun
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Pharm-X Center, School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China
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13
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Xia Q, Li X, Fu X, Zhou Y, Peng Y, Wang J, Song G. Copper-Catalyzed Three-Component Reactions of α-Ketoaldehyde, 1,3-Dicarbonyl Compound, and Organic Boronic Acid in Water: A Route to 1,4-Diketones. J Org Chem 2021; 86:9914-9923. [PMID: 34181415 DOI: 10.1021/acs.joc.1c01100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel three-component reaction of α-ketoaldehydes, 1,3-dicarbonyl compounds, and organic boronic acids catalyzed by CuO in water has been developed to give a wide range of products containing 1,3/1,4-diketones. The method has some advantages such as the use of readily available starting materials, wide substrate scopes, excellent yields, gram-scale synthesis, and mild reaction conditions.
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Affiliation(s)
- Qi Xia
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Xiang Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Xi Fu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yaxuan Zhou
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yanqing Peng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Jiayi Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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14
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Liu HX, Ji F, Chen Y, Gao Y, Wang JK, Zhang MZ, Liu F, Sha Q. De Novo and Divergent Synthesis of Highly Functionalized Furans by Cascade Reactions of 2-Hydroxy-1,4-diones with Nucleophiles. Chemistry 2021; 27:5225-5229. [PMID: 33427337 DOI: 10.1002/chem.202005098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/17/2020] [Indexed: 11/10/2022]
Abstract
Herein, a divergent synthesis of a variety of 2α- and 5α-substituted furan derivatives from 2-hydroxy-1,4-diones is reported. By using appropriate substrates and an acid catalyst, the reactions occurred selectively through cyclization/1,6-conjugate addition or cyclization/Friedel-Crafts-type cascade reactions. A broad range of nucleophilic reagents (>10 types for the 1,6-conjugate addition for 5α substitution and >20 types for the Friedel-Crafts-type cascade reaction for 2α substitution), including alcohols, amides, furan, thiophene, pyrrole, indole, phenols, and many others, can successfully participate in the reactions, providing a universal strategy for a diversity-oriented synthesis of α-substituted furan derivatives. Deuteriation experiments and DFT calculations were carried out to support the proposed reaction mechanisms. Antifungal activity experiments revealed that products with an indole or 4-hydroxycoumarin core substituted at the 2α position showed moderate activities against Rhizoctorzia solani and Botrytis cinerea, respectively.
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Affiliation(s)
- Hai-Xuan Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fei Ji
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing, 211198, P.R. China
| | - Yu Chen
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P.R. China
| | - Ya Gao
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Jun-Ke Wang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Ming-Zhi Zhang
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Fang Liu
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science, and Department of, Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang Road, Xuanwu District, Nanjing, 210095, P.R. China
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15
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Xu J, Ding A, Zhang Y, Guo H. Photochemical Synthesis of 1,4-Dicarbonyl Bifluorene Compounds via Oxidative Radical Coupling Using TEMPO as the Oxygen Atom Donor. J Org Chem 2021; 86:3656-3666. [PMID: 33513019 DOI: 10.1021/acs.joc.0c02781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A visible-light-induced metal-free synthesis of 1,4-dicarbonyl compounds from alkyne-containing aryl iodides via photochemical C-I bond cleavage, intramolecular cyclization, oxidation, and intermolecular radical coupling sequence is reported. TEMPO was employed as the oxygen atom donor in this transformation. This protocol provided a new strategy for the synthesis of 1,4-dicarbonyl bifluorene compounds.
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Affiliation(s)
- Jincheng Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Aishun Ding
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Yanbin Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Hao Guo
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
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16
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Yuen OY, So CM. Ligand Control of Palladium-Catalyzed Site-Selective α- and γ-Arylation of α,β-Unsaturated Ketones with (Hetero)aryl Halides. Angew Chem Int Ed Engl 2020; 59:23438-23444. [PMID: 33007134 DOI: 10.1002/anie.202010682] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/06/2020] [Indexed: 01/23/2023]
Abstract
This study describes the first palladium-catalyzed, site-selective α- and γ-arylation of α,β-unsaturated ketones with (hetero)aryl halides. A wide range of hetero(aryl)halides coupled with α,β-unsaturated ketones, and transformation into the arylated products proceeded with excellent to good yields. The site selectivity of the reaction is switchable by simply changing the phosphine ligand to access either α-arylated or γ-arylated products in good to excellent yields by using a low catalyst loading, and the method demonstrates good functional-group compatibility.
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Affiliation(s)
- On Ying Yuen
- Department of Applied Biology and Chemical Technology and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, Hong Kong
| | - Chau Ming So
- Department of Applied Biology and Chemical Technology and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, Hong Kong.,The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, P. R. China
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17
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Yuen OY, So CM. Ligand Control of Palladium‐Catalyzed Site‐Selective α‐ and γ‐Arylation of α,β‐Unsaturated Ketones with (Hetero)aryl Halides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- On Ying Yuen
- Department of Applied Biology and Chemical Technology and State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom Kowloon, Hong Kong Hong Kong
| | - Chau Ming So
- Department of Applied Biology and Chemical Technology and State Key Laboratory of Chemical Biology and Drug Discovery The Hong Kong Polytechnic University Hung Hom Kowloon, Hong Kong Hong Kong
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen P. R. China
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18
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19
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Roy Chowdhury S, Singh D, Hoque IU, Maity S. Organic Dye-Catalyzed Intermolecular Radical Coupling of α-Bromocarbonyls with Olefins: Photocatalytic Synthesis of 1,4-Ketocarbonyls Using Air as an Oxidant. J Org Chem 2020; 85:13939-13950. [DOI: 10.1021/acs.joc.0c01985] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Deepak Singh
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
| | - Injamam Ul Hoque
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
| | - Soumitra Maity
- Department of Chemistry, Indian Institute of Technology (ISM) Dhanbad, JH 826004, India
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20
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Liu Q, Wang R, Song H, Liu Y, Wang Q. Synthesis of 1,4‐Dicarbonyl Compounds by Visible‐Light‐Mediated Cross‐Coupling Reactions of α‐Chlorocarbonyls and Enol Acetates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000791] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiang Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Rui‐Guo Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Hong‐Jian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Yu‐Xiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Qing‐Min Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin Tianjin 300071 People's Republic of China
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21
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Zanatta N, Marangoni MA, Moraes PA, Camargo AF, Bonacorso HG, Martins MAP. Synthesis of a Novel 1,4-Dicarbonyl Scaffold – Ethyl 3-Formyl-4,5-dihydrofuran-2-carboxylate – and Its Application to the Synthesis of Pyridazines. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0039-1690886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The 1,4-dicarbonyl scaffold ethyl 3-formyl-4,5-dihydrofuran-2-carboxylate was obtained through the rearrangement of the parent ethyl 2-(4,5-dihydrofuran-3-yl)-2-oxoacetate and applied to the synthesis of a series of 7-alkoxy-2,3-dihydrofuro[2,3-d]pyridazines. Twelve pyridazines were obtained in yields of up to 70%.
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Affiliation(s)
- Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
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22
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Yang XY, Wang R, Wang L, Li J, Mao S, Zhang SQ, Chen N. K 2S 2O 8-promoted C-Se bond formation to construct α-phenylseleno carbonyl compounds and α,β-unsaturated carbonyl compounds. RSC Adv 2020; 10:28902-28905. [PMID: 35520078 PMCID: PMC9055883 DOI: 10.1039/d0ra05927g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/28/2020] [Indexed: 11/21/2022] Open
Abstract
A novel K2S2O8-promoted C–Se bond formation from cross-coupling under neutral conditions has been developed. A variety of aldehydes and ketones react well using K2S2O8 as the oxidant in the absence of catalyst and afford desired products in moderate to excellent yields. This protocol provides a very simple route for the synthesis of α-phenylseleno carbonyl compounds and α,β-unsaturated carbonyl compounds. K2S2O8-promoted C–Se bond formation from the cross-coupling of C(sp3)–H bond adjacent to carbonyl group with diphenyl diselenide under metal-free conditions.![]()
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Affiliation(s)
- Xue-Yan Yang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University Xi'an Shaanxi 710061 PR China
| | - Ruizhe Wang
- Department of Chemistry, School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University Xi'an Shaanxi 710049 PR China
| | - Lu Wang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University Xi'an Shaanxi 710061 PR China
| | - Jianjun Li
- Department of Chemistry, School of Science, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University Xi'an Shaanxi 710049 PR China
| | - Shuai Mao
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University Xi'an Shaanxi 710061 PR China
| | - San-Qi Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong University Xi'an Shaanxi 710061 PR China
| | - Nanzheng Chen
- The Thoracic Surgery Department of the First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 PR China
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23
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Li M, Sun Y, Xie Y, Yu Y, Huang F, Huang H. Copper-catalyzed carbene insertion and ester migration for the synthesis of polysubstituted pyrroles. Chem Commun (Camb) 2020; 56:11050-11053. [DOI: 10.1039/d0cc04157b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild synthetic protocol to access 2-ester pyrroles through Cu(OTf)2-catalysed carbene insertion/ester migration/cyclization of enaminones and α-diazo compounds is reported.
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Affiliation(s)
- Mingrui Li
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Yiming Sun
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Yuxing Xie
- School of Food Science and Pharmaceutical Engineering
- Nanjing Normal University
- Nanjing 210023
- P. R. China
| | - Yang Yu
- School of Environmental Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Fei Huang
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- School of Food Science and Pharmaceutical Engineering
| | - He Huang
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- School of Food Science and Pharmaceutical Engineering
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24
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Sarkar S, Banerjee A, Yao W, Patterson EV, Ngai MY. Photocatalytic Radical Aroylation of Unactivated Alkenes: Pathway to β-Functionalized 1,4-, 1,6-, and 1,7-Diketones. ACS Catal 2019; 9:10358-10364. [PMID: 34040817 DOI: 10.1021/acscatal.9b03570] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the development of a photocatalytic strategy for the synthesis of β-functionalized unsymmetrical 1,4-, 1-6 and 1,7-diketones from aroyl chlorides and unactivated alkenes at room temperature. The mild reaction conditions not only tolerate a wide range of functional groups and structural moieties, but also enable migration of a variety of distal groups including (hetero)arenes, nitrile, aldehyde, oxime-derivative, and alkene. The efficiency of chirality transfer, factors that control the distal-group migration, and synthesis of carbo- and heterocycles from the diketones are also described. Mechanistic studies suggest a reaction pathway involving a photocatalytic radical aroylation of unactivated alkenes followed by a distal-group migration, oxidation, and deprotonation to afford the desired diketones.
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Affiliation(s)
- Satavisha Sarkar
- Department of Chemistry and Institute of Chemical Biology and Drug Discovery, Stony Brook University, The State University of New York, Stony Brook, New York 11794-3400, United States
| | - Arghya Banerjee
- Department of Chemistry and Institute of Chemical Biology and Drug Discovery, Stony Brook University, The State University of New York, Stony Brook, New York 11794-3400, United States
| | - Wang Yao
- Department of Chemistry and Institute of Chemical Biology and Drug Discovery, Stony Brook University, The State University of New York, Stony Brook, New York 11794-3400, United States
| | - Eric V. Patterson
- Department of Chemistry and Institute of Chemical Biology and Drug Discovery, Stony Brook University, The State University of New York, Stony Brook, New York 11794-3400, United States
| | - Ming-Yu Ngai
- Department of Chemistry and Institute of Chemical Biology and Drug Discovery, Stony Brook University, The State University of New York, Stony Brook, New York 11794-3400, United States
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25
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Zhao P, Wu X, Zhou Y, Geng X, Wang C, Wu YD, Wu AX. Direct Synthesis of 2,3-Diaroyl Quinolines and Pyridazino[4,5-b]quinolines via an I2-Promoted One-Pot Multicomponent Reaction. Org Lett 2019; 21:2708-2711. [DOI: 10.1021/acs.orglett.9b00685] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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26
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Li Y, Shang JQ, Wang XX, Xia WJ, Yang T, Xin Y, Li YM. Copper-Catalyzed Decarboxylative Oxyalkylation of Alkynyl Carboxylic Acids: Synthesis of γ-Diketones and γ-Ketonitriles. Org Lett 2019; 21:2227-2230. [DOI: 10.1021/acs.orglett.9b00520] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yi Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
| | - Jia-Qi Shang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
| | - Xiang-Xiang Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
| | - Wen-Jin Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
| | - Tao Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
| | - Yangchun Xin
- Katzin Diagnostic & Research PET/MR Center, Nemours/Alfred I. DuPont Hospital for Children, Wilmington, Delaware 19803, United States
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P.R. China
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27
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Ji M, Wu Z, Zhu C. Visible-light-induced consecutive C-C bond fragmentation and formation for the synthesis of elusive unsymmetric 1,8-dicarbonyl compounds. Chem Commun (Camb) 2019; 55:2368-2371. [PMID: 30724971 DOI: 10.1039/c9cc00378a] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Synthesis of the valuable unsymmetric 1,8-dicarbonyl compounds remains underexplored currently. Herein, we disclose a new strategy for the synthesis of 1,8-diketones through the coupling of cyclopropanols and cyanohydrins under visible-light irradiation. The protocol features a cascade of intriguing ring opening of cyclopropanols and remote cyano migration. The unfavorable addition of an alkyl radical to an electron-rich alkene is facilitated by the intramolecular cyanohydrin interception. A variety of multiply functionalized 1,8-diketones are furnished in useful yields. The products could be further transformed into other valuable compounds, manifesting the utility of this method.
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Affiliation(s)
- Meishan Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
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28
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Liu C, Xu J, Ding L, Zhang H, Xue Y, Yang F. Au-Catalyzed tandem intermolecular hydroalkoxylation/Claisen rearrangement between allylic alcohols and chloroalkynes. Org Biomol Chem 2019; 17:4435-4439. [DOI: 10.1039/c9ob00151d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An efficient protocol for the synthesis of γ,δ-unsaturated α-chloroketones has been developed via Au-catalyzed tandem intermolecular hydroalkoxylation/Claisen rearrangement.
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Affiliation(s)
- Congrong Liu
- School of Environment Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Jin Xu
- Key Laboratory of Watershed Geographic Sciences
- Nanjing Institute of Geography and Limnology
- Chinese Academy of Sciences
- Nanjing
- China
| | - Lianghui Ding
- School of Environment Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Haiyun Zhang
- School of Environment Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Yunbo Xue
- School of Environment Engineering
- Nanjing Institute of Technology
- Nanjing
- China
| | - Fulai Yang
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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29
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Ganiek MA, Ivanova MV, Martin B, Knochel P. Mild Homologation of Esters through Continuous Flow Chloroacetate Claisen Reactions. Angew Chem Int Ed Engl 2018; 57:17249-17253. [PMID: 30290045 DOI: 10.1002/anie.201810158] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/25/2018] [Indexed: 12/11/2022]
Abstract
The selective chloromethylenation of functionalized esters using chloroacetic acid (CA) and LiHMDS (HMDS=hexamethyldisilazide) in a continuous-flow setup is reported. This Claisen homologation is for the first time extended to bis-chloromethylenation using dichloroacetic acid (DCA), thus giving access to under-explored α,α'-bis-chloroketones. The use of flow conditions enables efficient generation and reaction of the unstable chloroacetate dianion intermediates, leading to unprecedented mild and scalable reaction conditions at an economical reagent stoichiometry (-10 °C, <1 min, 1.0-2.4 equiv dianion). The clean reaction profiles allow subsequent use of the unpurified crude products, which is demonstrated in the synthesis of various heterocycles of broad interest. Furthermore, we report a novel, catalyst-free substitution of the obtained monochloro ketone products with (hetero)aryl zinc enolates to give valuable 1,4-diketones.
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Affiliation(s)
- Maximilian A Ganiek
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Maria V Ivanova
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Benjamin Martin
- Novartis Pharma AG, Chemical Development, Fabrikstrasse, 4002, Basel, Switzerland
| | - Paul Knochel
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
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30
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Ganiek MA, Ivanova MV, Martin B, Knochel P. Milde Chlorhomologisierung von Estern durch Chloracetat‐Claisen‐Reaktion unter kontinuierlichen Durchflussbedingungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maximilian A. Ganiek
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstraße 5–13, Haus F 81377 München Deutschland
| | - Maria V. Ivanova
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstraße 5–13, Haus F 81377 München Deutschland
| | - Benjamin Martin
- Novartis Pharma AG Chemical Development Fabrikstraße 4002 Basel Schweiz
| | - Paul Knochel
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstraße 5–13, Haus F 81377 München Deutschland
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31
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Liu Z, Zhang X, Virelli M, Zanoni G, Anderson EA, Bi X. Silver-Catalyzed Regio- and Stereoselective Formal Carbene Insertion into Unstrained C-C σ-Bonds of 1,3-Dicarbonyls. iScience 2018; 8:54-60. [PMID: 30278300 PMCID: PMC6170519 DOI: 10.1016/j.isci.2018.09.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/13/2018] [Accepted: 09/06/2018] [Indexed: 11/15/2022] Open
Abstract
A regio- and stereoselective silver-catalyzed formal carbene insertion into 1,3-dicarbonyls has been developed, using N-nosylhydrazones as diazo surrogates. Two new C-C bonds are constructed at the carbenic carbon center through the selective cleavage of the C-C(=O) σ-bond of acyclic 1,3-dicarbonyls, enabling the preparation of various synthetically useful polysubstituted γ-diketones, γ-ketoesters, and γ-ketoamides in high yields. The in situ formation of a donor-acceptor cyclopropane, via reaction of the enolate of the 1,3-dicarbonyl with an electrophilic silver carbenoid, is proposed as a key process in the catalytic cycle.
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Affiliation(s)
- Zhaohong Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xinyu Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Matteo Virelli
- Department of Chemistry, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun 130024, China; State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.
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32
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Stereoselective synthesis of 3,4-di-substituted mercaptolactones via photoredox-catalyzed radical addition of thiophenols. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Che C, Qian Z, Wu M, Zhao Y, Zhu G. Intermolecular Oxidative Radical Addition to Aromatic Aldehydes: Direct Access to 1,4- and 1,5-Diketones via Silver-Catalyzed Ring-Opening Acylation of Cyclopropanols and Cyclobutanols. J Org Chem 2018; 83:5665-5673. [DOI: 10.1021/acs.joc.8b00666] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chao Che
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Zhaosheng Qian
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Mingchang Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Ying Zhao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, China
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34
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Bai XT, Zhang QQ, Zhang S, Chen DY, Fu JY, Zhu JY, Wang YB, Tang YT. Carbonyl-Oxygen-Assisted KOMe-Mediated Formal Hydration of 4-Alkynones: Complete Regioselectivity in the One-Pot Synthesis of 1,4-Diketones under Mild Conditions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xue-Ting Bai
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Qian-Qian Zhang
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Shuai Zhang
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Dan-Yun Chen
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Ji-Ya Fu
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Jun-Yan Zhu
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Yan-Bo Wang
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
| | - Yan-Ting Tang
- Institute of Functional Organic Molecular Engineering; Henan Engineering Laboratory of Flame-Retardant and Functional Materials; College of Chemistry and Chemical Engineering; Henan University; 475004 Kaifeng China
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35
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Lv Y, Pu W, Niu J, Wang Q, Chen Q. nBu4NI-catalyzed C C bond formation to construct 2-carbonyl-1,4-diketones under mild conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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36
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Gomes RC, Barcelos RC, Rodrigues MT, Santos H, Coelho F. Intermolecular Stetter Reactions on Morita-Baylis-Hillman Adducts: an Approach to Highly Functionalized 1,4-Dicarbonyl Compounds. ChemistrySelect 2017. [DOI: 10.1002/slct.201602059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ralph C. Gomes
- Laboratory of Synthesis of Natural Products and Drugs; UNICAMP; Institute of Chemistry, PO Box; 6154, 13083-970 Campinas, SP Brazil
| | - Rosimeire C. Barcelos
- Laboratory of Synthesis of Natural Products and Drugs; UNICAMP; Institute of Chemistry, PO Box; 6154, 13083-970 Campinas, SP Brazil
| | - Manoel T. Rodrigues
- Laboratory of Synthesis of Natural Products and Drugs; UNICAMP; Institute of Chemistry, PO Box; 6154, 13083-970 Campinas, SP Brazil
| | - Hugo Santos
- Laboratory of Synthesis of Natural Products and Drugs; UNICAMP; Institute of Chemistry, PO Box; 6154, 13083-970 Campinas, SP Brazil
| | - Fernando Coelho
- Laboratory of Synthesis of Natural Products and Drugs; UNICAMP; Institute of Chemistry, PO Box; 6154, 13083-970 Campinas, SP Brazil
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37
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Wang AF, Zhou P, Zhu YL, Hao WJ, Li G, Tu SJ, Jiang B. Metal-free benzannulation of 1,7-diynes towards unexpected 1-aroyl-2-naphthaldehydes and their application in fused aza-heterocyclic synthesis. Chem Commun (Camb) 2017; 53:3369-3372. [DOI: 10.1039/c7cc00323d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A novel I2-mediated benzannulation of 1,7-diyne-involved 1,4-oxo-migration was established, providing unexpected 1-aroyl-2-naphthaldehydes. The resulting 1-aroyl-2-naphthaldehydes were successfully applied in the synthesis of polycyclic isoindoles.
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Affiliation(s)
- Ai-Fang Wang
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Peng Zhou
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Yi-Long Zhu
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Guigen Li
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Shu-Jiang Tu
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
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38
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Esumi N, Suzuki K, Nishimoto Y, Yasuda M. Synthesis of 1,4-Dicarbonyl Compounds from Silyl Enol Ethers and Bromocarbonyls, Catalyzed by an Organic Dye under Visible-Light Irradiation with Perfect Selectivity for the Halide Moiety over the Carbonyl Group. Org Lett 2016; 18:5704-5707. [PMID: 27779410 DOI: 10.1021/acs.orglett.6b02869] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the visible-light-induced radical coupling reaction of silyl enol ethers with α-bromocarbonyl compounds to give 1,4-dicarbonyls. The reaction was effectively accelerated using an inexpensive organic dye (eosin Y) as a photoredox catalyst. 1,4-Dicarbonyl compounds alone were afforded, without the generation of carbonyl adducts of the α-halocarbonyls, which are usually generated in the presence of fluoride anions or Lewis acids. A variety of silyl enol ethers, α-bromoketones, α-bromoesters, and α-bromoamides were applied to this system to produce the coupling compounds.
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Affiliation(s)
- Naoto Esumi
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kensuke Suzuki
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Nishimoto
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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39
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Chan CK, Chan YL, Tsai YL, Chang MY. One-Pot Synthesis of 2-Cyano-1,4-diketones: Applications to Synthesis of Cyanosubstituted Furans, Pyrroles, and Dihydropyridazines. J Org Chem 2016; 81:8112-20. [DOI: 10.1021/acs.joc.6b01672] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chieh-Kai Chan
- Department of Medicinal and Applied Chemistry, and General Research Centers of R&D office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yi-Ling Chan
- Department of Medicinal and Applied Chemistry, and General Research Centers of R&D office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry, and General Research Centers of R&D office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, and General Research Centers of R&D office, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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40
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Wu X, Li K, Wang S, Liu C, Lei A. Acid-Promoted Cross-Dehydrative Aromatization for the Synthesis of Tetraaryl-Substituted Pyrroles. Org Lett 2015; 18:56-9. [DOI: 10.1021/acs.orglett.5b03240] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xudong Wu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, P. R. China
| | - Ke Li
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, P. R. China
| | - Siyuan Wang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, P. R. China
| | - Chao Liu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, P. R. China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, P. R. China
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41
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Fu WC, So CM, Chow WK, Yuen OY, Kwong FY. Design of an Indolylphosphine Ligand for Reductive Elimination-Demanding Monoarylation of Acetone Using Aryl Chlorides. Org Lett 2015; 17:4612-5. [DOI: 10.1021/acs.orglett.5b02344] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wai Chung Fu
- State Key Laboratory of Chirosciences
and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Chau Ming So
- State Key Laboratory of Chirosciences
and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Wing Kin Chow
- State Key Laboratory of Chirosciences
and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - On Ying Yuen
- State Key Laboratory of Chirosciences
and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Fuk Yee Kwong
- State Key Laboratory of Chirosciences
and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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42
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Lan XW, Wang NX, Zhang W, Wen JL, Bai CB, Xing Y, Li YH. Copper/Manganese Cocatalyzed Oxidative Coupling of Vinylarenes with Ketones. Org Lett 2015; 17:4460-3. [DOI: 10.1021/acs.orglett.5b02116] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xing-Wang Lan
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Nai-Xing Wang
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei Zhang
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jia-Long Wen
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Cui-Bing Bai
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yalan Xing
- Department
of Chemistry, William Paterson University of New Jersey, 300 Pompton
Road, Wayne, New Jersey 07470, United States
| | - Yi-He Li
- Technical
Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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43
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Kwon Y, Schatz DJ, West FG. 1,4-Diketones from Cross-Conjugated Dienones: Potassium Permanganate-Interrupted Nazarov Reaction. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503696] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Kwon Y, Schatz DJ, West FG. 1,4‐Diketones from Cross‐Conjugated Dienones: Potassium Permanganate‐Interrupted Nazarov Reaction. Angew Chem Int Ed Engl 2015; 54:9940-3. [DOI: 10.1002/anie.201503696] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Yonghoon Kwon
- Department of Chemistry, University of Alberta, E3‐43 Gunning‐Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2 (Canada)
| | - Devon J. Schatz
- Department of Chemistry, University of Alberta, E3‐43 Gunning‐Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2 (Canada)
| | - Frederick G. West
- Department of Chemistry, University of Alberta, E3‐43 Gunning‐Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2 (Canada)
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45
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Mao S, Zhu X, Gao Y, Guo D, Wang Y. Silver‐Catalyzed Coupling of Two CH Groups and One‐Pot Synthesis of Tetrasubstituted Furans, Thiophenes, and Pyrroles. Chemistry 2015; 21:11335-9. [DOI: 10.1002/chem.201501410] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Shuai Mao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710069 (PR. China)
| | - Xue‐Qing Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710069 (PR. China)
| | - Ya‐Ru Gao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710069 (PR. China)
| | - Dong‐Dong Guo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710069 (PR. China)
| | - Yong‐Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710069 (PR. China)
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46
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Luo J, Jiang Q, Chen H, Tang Q. Catalyst-free formation of 1,4-diketones by addition of silyl enolates to oxyallyl zwitterions in situ generated from α-haloketones. RSC Adv 2015. [DOI: 10.1039/c5ra12244a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we report an efficient and practical method for the preparation of 1,4-diketones by direct coupling of α-haloketones with silyl enolates at room temperature. No catalysts were required in our protocol.
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Affiliation(s)
- Juan Luo
- Department of Medical Chemistry
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
- P. R. China
| | - Qihua Jiang
- Department of Medical Chemistry
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
- P. R. China
| | - Hao Chen
- Department of Medical Chemistry
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
- P. R. China
| | - Qiang Tang
- Department of Medical Chemistry
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016
- P. R. China
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47
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Vázquez-Romero A, Gómez AB, Martín-Matute B. Acid- and Iridium-Catalyzed Tandem 1,3-Transposition/3,1-Hydrogen Shift/Chlorination of Allylic Alcohols. ACS Catal 2014. [DOI: 10.1021/cs501618h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ana Vázquez-Romero
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
| | - Antonio Bermejo Gómez
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
| | - Belén Martín-Matute
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
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48
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Mao S, Gao YR, Zhang SL, Guo DD, Wang YQ. Copper(II)-Promoted C-C Bond Formation by Oxidative Coupling of Two C(sp3)-H Bonds Adjacent to Carbonyl Group to Construct 1,4-Diketones and Tetrasubstituted Furans. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403274] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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49
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Zhang F, Du P, Chen J, Wang H, Luo Q, Wan X. Co-Catalyzed Synthesis of 1,4-Dicarbonyl Compounds Using TBHP Oxidant. Org Lett 2014; 16:1932-5. [DOI: 10.1021/ol5004687] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Zhang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Peng Du
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Jijun Chen
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Hongxiang Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Qiang Luo
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiaobing Wan
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering
and Materials Science, Soochow University, Suzhou 215123, China
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50
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Li JS, Cai FF, Li ZW, Liu WD, Simpson J, Xue Y, Pang HL, Huang PM, Cao Z, Li DL. One-step metal-free construction of fluorescent 5-aryl-2,3-dicyanofurans from simple aryl ketones with DDQ. RSC Adv 2014. [DOI: 10.1039/c3ra45462b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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