101
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Yang J, Wang G, Zhou H, Li Z, Ma B, Song M, Sun R, Huo C. Visible-light-promoted selective O-alkylation of 2-pyridones with α-aryldiazoacetates. Org Biomol Chem 2021; 19:394-398. [PMID: 33325960 DOI: 10.1039/d0ob02350g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A visible-light-promoted O-H insertion reaction between 2-pyridones and α-aryldiazoacetates has been developed. Upon visible light irradiation, the reaction proceeds smoothly under mild and catalyst-free conditions. A wide scope of 2-pyridones and α-aryldiazoacetates are well tolerated, and various O-alkylated 2-pyridones are obtained with perfect selectivity and good functional group tolerance. A photoinduced radical process is probably responsible for the excellent selectivity.
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Affiliation(s)
- Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Ganggang Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Hongyan Zhou
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China. and College of Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhifeng Li
- College of Chemical Engineering and Technology, Tianshui Normal University, Tianshui 741000, China
| | - Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Menghui Song
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Rongxia Sun
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Congde Huo
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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102
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Jana S, Guo Y, Koenigs RM. Recent Perspectives on Rearrangement Reactions of Ylides via Carbene Transfer Reactions. Chemistry 2021; 27:1270-1281. [PMID: 32754993 PMCID: PMC7894496 DOI: 10.1002/chem.202002556] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Indexed: 01/24/2023]
Abstract
Among the available methods to increase the molecular complexity, sigmatropic rearrangements occupy a distinct position in organic synthesis. Despite being known for over a century sigmatropic rearrangement reactions of ylides via carbene transfer reaction have only recently come of age. Most of the ylide mediated rearrangement processes involve rupture of a σ-bond and formation of a new bond between π-bond and negatively charged atom followed by simultaneous redistribution of π-electrons. This minireview describes the advances in this research area made in recent years, which now opens up metal-catalyzed enantioselective sigmatropic rearrangement reactions, metal-free photochemical rearrangement reactions and novel reaction pathways that can be accessed via ylide intermediates.
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Affiliation(s)
- Sripati Jana
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Yujing Guo
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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103
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Empel C, Nguyen TV, Koenigs RM. Tropylium-Catalyzed O–H Insertion Reactions of Diazoalkanes with Carboxylic Acids. Org Lett 2021; 23:548-553. [DOI: 10.1021/acs.orglett.0c04069] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Claire Empel
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Wales, Sydney 2052, NSW, Australia
| | - Rene M. Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
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104
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Laconsay CJ, Tantillo DJ. Metal Bound or Free Ylides as Reaction Intermediates in Metal-Catalyzed [2,3]-Sigmatropic Rearrangements? It Depends. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04768] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Croix J. Laconsay
- Department of Chemistry, University of California−Davis, Davis, California 95616, United States
| | - Dean J. Tantillo
- Department of Chemistry, University of California−Davis, Davis, California 95616, United States
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105
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Cai BG, Li Q, Zhang Q, Li L, Xuan J. Synthesis of trisubstituted hydroxylamines by a visible light-promoted multicomponent reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo01102b] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A green and efficient route for the synthesis of trisubstituted hydroxylamines from β-keto ester, 2-nitrosopyridine and aryldiazoacetates has been reported. This multicomponent reaction occurred under mild conditions without catalysts or additives.
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Affiliation(s)
- Bao-Gui Cai
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Qian Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Qiong Zhang
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Lei Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, People's Republic of China
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106
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Ji X, Zhang Z, Wang Y, Han Y, Peng H, Li F, Liu L. Catalyst-free synthesis of α,α-disubstituted carboxylic acid derivatives under ambient conditions via a Wolff rearrangement reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo01265g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Herein, a hexafluoroisopropanol (HFIP)-promoted Wolff rearrangement reaction was developed, delivering various α,α-disubstituted carboxylic acid derivatives in good to excellent yields.
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Affiliation(s)
- Xin Ji
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Zhikun Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuzhu Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yazhe Han
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Huiling Peng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Fangzhu Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, P. R. China
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107
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Liu R, Liu Q, Meng H, Ding H, Hao J, Ji Z, Yue H, Wei W. Metal-free visible-light-induced aerobic oxidation of α-diazoesters leading to α-ketoesters in air. Org Chem Front 2021. [DOI: 10.1039/d0qo01587c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A metal-free and visible-light-induced strategy has been established for the construction of α-ketoesters via aerobic oxidation of α-diazoesters with dioxygen in air at room temperature.
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Affiliation(s)
- Ruisheng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Qishun Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Haoran Meng
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Hongyu Ding
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Jindong Hao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Zhongyin Ji
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Qinghai 810008
- China
| | - Wei Wei
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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108
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Mei H, Liu J, Pajkert R, Wang L, Röschenthaler GV, Han J. Design of (β-diazo-α,α-difluoroethyl)phosphonates and their application as masked carbenes in visible light-promoted coupling reactions with sulfonic acids. Org Chem Front 2021. [DOI: 10.1039/d0qo01394c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new kind of (β-diazo-α,α-difluoroethyl)phosphonate was designed and used as masked carbenes in visible-light-promoted reactions with sulfonic acids.
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Affiliation(s)
- Haibo Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Jiang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Romana Pajkert
- Department of Life Sciences and Chemistry
- Jacobs University Bremen gGmbH
- 28759 Bremen
- Germany
| | - Li Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | | | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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109
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Liu J, Xu J, Pajkert R, Mei H, Röschenthaler GV, Han J. Esterification of Carboxylic Acids with (β-Diazo-α,α-difluoroethyl)phosphonates under Photochemical Conditions. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21030096] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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110
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Fan R, Tan C, Liu Y, Wei Y, Zhao X, Liu X, Tan J, Yoshida H. A leap forward in sulfonium salt and sulfur ylide chemistry. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.06.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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111
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Cai B, Xuan J. Visible Light-Promoted Transformation of Diazo Compounds via the Formation of Free Carbene as Key Intermediate. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202109040] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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112
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Gao C, Cao T, Kirillov AM, Fang R, Yang L. Rationalization of the mechanism and chemoselectivity of versatile Au-catalyzed reactions of diazoesters with allyl-functionalized sulfides, selenides, amines, or ethers by DFT. Org Chem Front 2021. [DOI: 10.1039/d1qo00920f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The origin of chemoselectivity and the mechanism of the title reactions were fully rationalized by density functional theory (DFT).
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Affiliation(s)
- Caicai Gao
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Teng Cao
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow, 117198, Russian Federation
| | - Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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113
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Ye C, Cai BG, Lu J, Cheng X, Li L, Pan ZW, Xuan J. Visible-Light-Promoted Polysubstituted Olefins Synthesis Involving Sulfur Ylides as Carbene Trapping Reagents. J Org Chem 2020; 86:1012-1022. [PMID: 33301327 DOI: 10.1021/acs.joc.0c02500] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A blue-light-emitting diode (LED) promoted coupling of aryl diazoacetates with sulfur ylides is described. This protocol features mild conditions, good functional group tolerance, and broad substrate scope for both aryl diazoacetates with sulfur ylides. Under optimal reaction conditions, a wide range of trisubstituted olefins is obtained in moderate to good yield, which can be further transferred to other biologically important heterocycles after a two-step simple operation.
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Affiliation(s)
- Cong Ye
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Bao-Gui Cai
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Juan Lu
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Xiao Cheng
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Lei Li
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Zhong-Wen Pan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials and Key Laboratory of Functional Inorganic Materials of Anhui Province, College of Chemistry & Chemical Engineering, Anhui University, Hefei, Anhui 230601, People's Republic of China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, People's Republic of China
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114
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Yang J, Wang G, Chen S, Ma B, Zhou H, Song M, Liu C, Huo C. Catalyst-free, visible-light-promoted S-H insertion reaction between thiols and α-diazoesters. Org Biomol Chem 2020; 18:9494-9498. [PMID: 33180081 DOI: 10.1039/d0ob02006k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A visible-light-promoted S-H insertion reaction between thiols and α-diazoesters was developed. The reaction proceeded smoothly at room temperature with a broad substrate scope, affording various thioethers in moderate to excellent yields. The catalyst- and additive-free nature, sustainable energy source and mild reaction conditions make this strategy more eco-friendly.
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Affiliation(s)
- Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Ganggang Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Shuwen Chen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Hongyan Zhou
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China. and College of Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Menghui Song
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Cai Liu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Congde Huo
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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115
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Okada CY, dos Santos CY, Jurberg ID. Blue light-promoted N–H insertion of amides, isatins, sulfonamides and imides into aryldiazoacetates: Synthesis of unnatural α-aryl amino acid derivatives. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131316] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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116
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Qin L, Yuan X, Cui Y, Sun Q, Duan X, Zhuang K, Chen L, Qiu J, Guo K. Visible‐Light‐Mediated S−H Bond Insertion Reactions of Diazoalkanes with Cysteine Residues in Batch and Flow. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000716] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Long‐Zhou Qin
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Xin Yuan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Yu‐Sheng Cui
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Qi Sun
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Xiu Duan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Kai‐Qiang Zhuang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Lin Chen
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Jiang‐Kai Qiu
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 People's Republic of China
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117
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Jana S, Empel C, Pei C, Vinh Nguyen T, Koenigs RM. Gold‐catalyzed C−H Functionalization of Phenothiazines with Aryldiazoacetates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000962] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sripati Jana
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | - Claire Empel
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
- University of New South Wales School of Chemistry Sydney Australia
| | - Chao Pei
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | | | - Rene M. Koenigs
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
- University of New South Wales School of Chemistry Sydney Australia
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118
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Chen J, Liu S, Lv X, Hong K, Lei J, Xu X, Hu W. Blue Light-Promoted Formal [4+1]-Annulation of Diazoacetates with o-Aminoacetophenones: Synthesis of Polysubstituted Indolines and Computational Study. J Org Chem 2020; 85:13920-13928. [PMID: 33034191 DOI: 10.1021/acs.joc.0c01974] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A blue light-promoted formal [4+1]-annulation of diazoacetates with o-aminoacetophenones has been reported, which provides an environmentally friendly method for the synthesis of polysubstituted indoline derivatives in moderate to good yields with excellent diastereoselectivities. Detailed mechanistic studies through density functional theory calculations reveal that the (E)-enol species is the key intermediate in this transformation, and the excellent diastereoselectivity is enabled via H-bonding in the intramolecular Aldol-type addition.
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Affiliation(s)
- Jinzhou Chen
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shuhao Liu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xinxin Lv
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Kemiao Hong
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jinping Lei
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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119
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García-Lacuna J, Domínguez G, Pérez-Castells J. Flow Chemistry for Cycloaddition Reactions. CHEMSUSCHEM 2020; 13:5138-5163. [PMID: 32662578 DOI: 10.1002/cssc.202001372] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Continuous flow reactors form part of a rapidly growing research area that has changed the way synthetic chemistry is performed not only in academia but also at the industrial level. This Review highlights the most recent advances in cycloaddition reactions performed in flow systems. Cycloadditions are atom-efficient transformations for the synthesis of carbo- and heterocycles, involved in the construction of challenging skeletons of complex molecules. The main advantages of translating these processes into flow include using intensified conditions, safer handling of hazardous reagents and gases, easy tuning of reaction conditions, and straightforward scaling up. These benefits are especially important in cycloadditions such as the copper(I)-catalyzed azide alkyne cycloaddition (CuAAC), Diels-Alder reaction, ozonolysis and [2+2] photocycloadditions. Some of these transformations are key reactions in the industrial synthesis of pharmaceuticals.
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Affiliation(s)
- Jorge García-Lacuna
- Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | - Gema Domínguez
- Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
| | - Javier Pérez-Castells
- Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities Urbanización Montepríncipe, 28660, Boadilla del Monte, Madrid, Spain
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120
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Yang Z, Stivanin ML, Jurberg ID, Koenigs RM. Visible light-promoted reactions with diazo compounds: a mild and practical strategy towards free carbene intermediates. Chem Soc Rev 2020; 49:6833-6847. [PMID: 32856627 DOI: 10.1039/d0cs00224k] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Carbenes are important intermediates in organic chemistry and have been widely applied in various types of organic reactions, ranging from cycloaddition reactions and sigmatropic rearrangements to C-H functionalizations, thus allowing the rapid construction of densely functionalized molecules. Over the past decades, remarkable progress has been achieved in metal-catalyzed carbene transfer reactions. Nevertheless, realizing these transformations under milder and/or greener conditions is still highly desirable. Only recently, visible light-promoted carbene transfer reactions of diazo compounds via free carbene intermediates have emerged as a practical, mild and powerful tool. In this tutorial review, we summarize the latest advances in the area, aiming at providing a clear overview on reaction design, mechanistic scenarios and potential future developments.
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Affiliation(s)
- Zhen Yang
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany.
| | - Mateus L Stivanin
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil.
| | - Igor D Jurberg
- State University of Campinas, Institute of Chemistry, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil.
| | - Rene M Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany.
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Yang J, Duan J, Wang G, Zhou H, Ma B, Wu C, Xiao J. Visible-Light-Promoted Site-Selective N1-Alkylation of Benzotriazoles with α-Diazoacetates. Org Lett 2020; 22:7284-7289. [DOI: 10.1021/acs.orglett.0c02619] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jingya Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jiaokui Duan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Ganggang Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Hongyan Zhou
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- College of Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Ben Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Chengqi Wu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
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123
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Petzold M, Günther A, Jones PG, Werz DB. Regio- and Diastereoselective Dimerization of Diazo Carbonyls: A Cooperative Catalytic Approach to Complex Scaffolds with Four Contiguous Stereocenters. Chemistry 2020; 26:11119-11123. [PMID: 32237096 PMCID: PMC7497023 DOI: 10.1002/chem.202001548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Indexed: 12/20/2022]
Abstract
Starting from readily available o-diazoacyl-substituted arene carboxylates, scaffolds with the 5,9-epoxycyclohepta[b]pyran-2(3H)-one core were obtained by cooperative RhII , Lewis and Brønsted acid catalysis. Four new bonds, three functional groups (lactone, ketal, and alcohol) and four contiguous stereocenters are formed during this regio- and diastereoselective process in a single synthetic step. Intensive optimization and mechanistic studies, including the trapping, isolation, and elucidation of reaction intermediates, led to a plausible mechanistic scenario. The reaction is proposed to involve carbonyl ylides but also transient species of the ketocarbene equilibrium that undergo a cascade of cycloaddition and skeletal rearrangements.
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Affiliation(s)
- Martin Petzold
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Andre Günther
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical ChemistryHagenring 3038106BraunschweigGermany
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
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124
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Empel C, Jana S, Pei C, Nguyen TV, Koenigs RM. Photochemical O–H Functionalization of Aryldiazoacetates with Phenols via Proton Transfer. Org Lett 2020; 22:7225-7229. [DOI: 10.1021/acs.orglett.0c02564] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Claire Empel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
- School of Chemistry, University of New South Waley, Sydney 2052, Australia
| | - Sripati Jana
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Chao Pei
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Thanh Vinh Nguyen
- School of Chemistry, University of New South Waley, Sydney 2052, Australia
| | - Rene M. Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
- School of Chemistry, University of New South Waley, Sydney 2052, Australia
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125
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He F, Jana S, Koenigs RM. Gold-Catalyzed Sigmatropic Rearrangement Reactions via Carbene Transfer Reactions. J Org Chem 2020; 85:11882-11891. [DOI: 10.1021/acs.joc.0c01678] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Feifei He
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Sripati Jana
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Rene M. Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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126
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Yadagiri D, Rivas M, Gevorgyan V. Denitrogenative Transformations of Pyridotriazoles and Related Compounds: Synthesis of N-Containing Heterocyclic Compounds and Beyond. J Org Chem 2020; 85:11030-11046. [PMID: 32786635 DOI: 10.1021/acs.joc.0c01652] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The high demand for new and efficient routes toward synthesis of nitrogen-containing heterocyclic scaffolds has inspired organic chemists to discover several methodologies over recent years. This Perspective highlights one standout approach, which involves the use of pyridotriazoles and related compounds in denitrogenative transformations. Readily available pyridotriazoles undergo ring-chain isomerization to produce uniquely reactive α-diazoimines. Such reactivity, enabled by metal catalysts, additives, or visible-light irradiation, can be applied in transannulation, insertion, cyclopropanation, and many other transformations.
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Affiliation(s)
- Dongari Yadagiri
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Mónica Rivas
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080-3021, United States
| | - Vladimir Gevorgyan
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080-3021, United States
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127
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Li F, Pei C, Koenigs RM. Rhodium-Catalyzed Enamine Homologation of Sulfides with Triazoles as Carbene Precursor. Org Lett 2020; 22:6816-6821. [DOI: 10.1021/acs.orglett.0c02330] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fang Li
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Chao Pei
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Rene M. Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
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128
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Guo Y, Pei C, Koenigs RM. Substrate‐Controlled Cyclopropanation Reactions of Glycals with Aryl Diazoacetates. ChemCatChem 2020. [DOI: 10.1002/cctc.202000569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yujing Guo
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | - Chao Pei
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | - Rene M. Koenigs
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
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129
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Dong S, Fu X, Xu X. [3+2]‐Cycloaddition of Catalytically Generated Pyridinium Ylide: A General Access to Indolizine Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000276] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shanliang Dong
- College of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Xiang Fu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Xinfang Xu
- College of ChemistryChemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
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130
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Xu Y, Lv G, Yan K, He H, Li J, Luo Y, Lai R, Hai L, Wu Y. Blue Light-promoted Carbene Transfer Reactions of Tosylhydrazones. Chem Asian J 2020; 15:1945-1947. [PMID: 32427419 DOI: 10.1002/asia.202000378] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/19/2020] [Indexed: 01/13/2023]
Abstract
Metal-free photochemical carbene-transfer reactions of tosylhydrazones were developed under blue light irradiation at room temperature. This reaction constructs C-X (X=C, N, O, S) bonds and cyclopropanes from readily available and stable starting materials.
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Affiliation(s)
- Yingying Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Guanghui Lv
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, No. 32 South Renmin Road, Huibei, Shiyan, 442000, China
| | - Kaichuan Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Hua He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jianglian Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yi Luo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ruizhi Lai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Li Hai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yong Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
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131
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Guo Y, Empel C, Pei C, Atodiresei I, Fallon T, Koenigs RM. Photochemical Cyclopropanation of Cyclooctatetraene and (Poly-)unsaturated Carbocycles. Org Lett 2020; 22:5126-5130. [DOI: 10.1021/acs.orglett.0c01734] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yujing Guo
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Claire Empel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Chao Pei
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Iuliana Atodiresei
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Thomas Fallon
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Rene M. Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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132
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Ansari MA, Yadav D, Singh MS. Visible‐Light‐Driven Photocatalyst‐ and Additive‐Free Cross‐Coupling of β‐Ketothioamides with α‐Diazo 1,3‐Diketones: Access to Highly Functionalized Thiazolines. Chemistry 2020; 26:8083-8089. [DOI: 10.1002/chem.202000279] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Monish Arbaz Ansari
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Dhananjay Yadav
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of ScienceBanaras Hindu University Varanasi 221005 India
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133
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Zheng Y, Dai P, Gao D, Hong K, Kou L, Dong S, Hu J, Qiu L, Hu W, Bao X, Xu X. Desaturation via Redox-Neutral Hydrogen Transfer Process: Synthesis of 2-Allyl Anilines, Mechanism and Applications. iScience 2020; 23:101168. [PMID: 32480129 PMCID: PMC7262561 DOI: 10.1016/j.isci.2020.101168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/16/2020] [Accepted: 05/12/2020] [Indexed: 11/26/2022] Open
Abstract
An unprecedented desaturation method via redox-neutral hydrogen transfer process has been disclosed under mild conditions for the selective formation of terminal alkene with alkyl diazo compounds and aza-o-QMs. The control experiments and DFT calculations suggest that the visible light was introduced as a key parameter to enhance the reactivity via a radical process in the formation of closed-shell cyclopropane intermediate, followed by a ring opening and redox-neutral hydrogen transfer process to give the desaturated product. The high regioselectivity in this transformation is enabled by the internal amino species as an ancillary group (AG) in the final olefin formation step. This method provides a missing link in the expeditious preparation of synthetically useful 2-allyl anilines with broad substrate generality. Further applications of these generated products in N-heterocycle construction, including 5- and 6-membered rings with structural diversity, have been tactfully explored, which highlight the potential in methodology development and drug discovery. Highly site and regioselective synthesis enabled by ancillary group Desaturation via redox-neutral inert hydrogen transfer process Missing link in the synthesis of 2-allyl anilines with board substrate scope Methodology development and diversity synthesis based on 2-allyl anilines
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Affiliation(s)
- Yang Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
| | - Ping Dai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
| | - Dafang Gao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
| | - Kemiao Hong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Luyao Kou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
| | - Shanliang Dong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jundie Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China; Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou 215003, China
| | - Lihua Qiu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China.
| | - Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123, China; Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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134
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Priebbenow DL. Silicon‐Derived Singlet Nucleophilic Carbene Reagents in Organic Synthesis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000279] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Daniel L. Priebbenow
- School of ChemistryThe University of Melbourne Parkville, Victoria Australia 3010
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135
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Rene M. Koenigs. ChemCatChem 2020. [DOI: 10.1002/cctc.202000341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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136
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Yang Z, Möller M, Koenigs RM. Synthesis of gem-Difluoro Olefins through C-H Functionalization and β-fluoride Elimination Reactions. Angew Chem Int Ed Engl 2020; 59:5572-5576. [PMID: 31885145 PMCID: PMC7155031 DOI: 10.1002/anie.201915500] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Indexed: 12/23/2022]
Abstract
A palladium catalyzed C-H functionalization and consecutive β-fluoride elimination reaction between indole heterocycles and fluorinated diazoalkanes is reported. This approach provides for the first time a facile method for the rapid synthesis of gem-difluoro olefins using fluorinated diazoalkanes under mild reaction conditions. Cyclopropanation products were obtained when N-arylated rather than N-alkylated indoles were applied in this reaction. Mechanistic studies reveal the importance of the β-fluoride elimination step in this transformation. This method presents a new concept for the simple and direct transfer of a 1-aryl-(2,2-difluorovinyl) group to access gem-difluoro olefins.
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Affiliation(s)
- Zhen Yang
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Mieke Möller
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
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137
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da Silva AF, Afonso MAS, Cormanich RA, Jurberg ID. Room Temperature Coupling of Aryldiazoacetates with Boronic Acids Enhanced by Blue Light Irradiation. Chemistry 2020; 26:5648-5653. [PMID: 31999021 DOI: 10.1002/chem.201905812] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Indexed: 12/21/2022]
Abstract
A visible-light-promoted photochemical protocol is reported for the coupling of aryldiazoacetates with boronic acids. This photochemical reaction shows great enhancement compared to the same protocol performed in the absence of light. Except for a few cases, the room temperature coupling in the dark (thermal process) generally does not work. When it does, it is likely to also involve free carbenes as key intermediates. Alternatively, photochemical reactions show a broad scope, can be performed under air and tolerate a wide variety of functional groups. Reaction-evolution monitoring, DFT calculations and control experiments have been used to evaluate the main aspects of this intricate mechanistic scenario. Biologically active molecules Adiphenine, Benactyzine and Aprophen have been prepared as examples of synthetic applications.
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Affiliation(s)
- Amanda F da Silva
- Department of Organic Chemistry, Institute of Chemistry, State University of Campinas, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil
| | - Marco A S Afonso
- Department of Organic Chemistry, Institute of Chemistry, State University of Campinas, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil
| | - Rodrigo A Cormanich
- Department of Organic Chemistry, Institute of Chemistry, State University of Campinas, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil
| | - Igor D Jurberg
- Department of Organic Chemistry, Institute of Chemistry, State University of Campinas, Rua Monteiro Lobato 270, 13083-862, Campinas, SP, Brazil
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138
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Jana S, Li F, Empel C, Verspeek D, Aseeva P, Koenigs RM. Stoichiometric Photochemical Carbene Transfer by Bamford-Stevens Reaction. Chemistry 2020; 26:2586-2591. [PMID: 31825123 PMCID: PMC7065054 DOI: 10.1002/chem.201904994] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Indexed: 01/07/2023]
Abstract
The photolysis of diazoalkanes is a timely strategy to conduct carbene-transfer reactions under mild and metal-free reaction conditions, and has developed as an important alternative to conventional metal-catalyzed carbene-transfer reactions. One of the major limitations lies within the rapidly occurring side reaction of the carbene intermediate with remaining diazoalkane molecules that result in the use of an excess of the reaction partner and thus impacts on the reaction efficiency. Herein, we describe a protocol that takes advantage of the in situ generation of donor-acceptor diazoalkanes by Bamford-Stevens reaction. Following this strategy, the concentration of the diazoalkane reaction partner can be minimized to reduce unwanted side reactions and to now conduct photochemical carbene transfer reactions under stoichiometric reaction conditions. We have explored this approach in the C-H and N-H functionalization and cyclopropanation reaction of N-heterocycles and could demonstrate the applicability of this method in 51 examples.
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Affiliation(s)
- Sripati Jana
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Fang Li
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Claire Empel
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Dennis Verspeek
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Polina Aseeva
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- RWTH Aachen UniversityInstitute of Organic ChemistryLandoltweg 152074AachenGermany
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139
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Synthese von
gem
‐Difluorolefinen durch C‐H‐Funktionalisierung und β‐Fluorideliminierungsreaktionen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915500] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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140
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Tran UPN, Hommelsheim R, Yang Z, Empel C, Hock KJ, Nguyen TV, Koenigs RM. Catalytic Synthesis of Trifluoromethyl Cyclopropenes and Oligo-Cyclopropenes. Chemistry 2020; 26:1254-1257. [PMID: 31617620 PMCID: PMC7028152 DOI: 10.1002/chem.201904680] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Indexed: 12/17/2022]
Abstract
The synthesis of trifluoromethylated cyclopropenes is often associated with important applications in drug discovery and functional materials. In this report, we describe the use of readily available chiral rhodium(II) catalysts for a highly efficient asymmetric cyclopropenation reaction of fluorinated donor–acceptor diazoalkanes with a broad variety of aliphatic and aromatic alkynes. Further studies highlight the unique reactivity of fluorinated donor–acceptor diazoalkanes in the synthesis of oligo‐cyclopropenes. Subsequent C−H functionalization of trifluoromethyl cyclopropenes furnishes densely substituted cyclopropene frameworks and also allows the alternative synthesis of bis‐cyclopropenes.
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Affiliation(s)
- Uyen P N Tran
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.,School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Renè Hommelsheim
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Zhen Yang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Claire Empel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Katharina J Hock
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Thanh V Nguyen
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
| | - René M Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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141
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Stivanin ML, Fernandes AAG, Silva AF, Okada CY, Jurberg ID. Blue Light‐Promoted N−H Insertion of Carbazoles, Pyrazoles and 1,2,3‐Triazoles into Aryldiazoacetates. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901343] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mateus L. Stivanin
- State University of CampinasInstitute of Chemistry. Rua Monteiro Lobato 270 13083-862 Campinas, SP Brazil
| | - Alessandra A. G. Fernandes
- State University of CampinasInstitute of Chemistry. Rua Monteiro Lobato 270 13083-862 Campinas, SP Brazil
| | - Amanda F. Silva
- State University of CampinasInstitute of Chemistry. Rua Monteiro Lobato 270 13083-862 Campinas, SP Brazil
| | - Celso Y. Okada
- State University of CampinasInstitute of Chemistry. Rua Monteiro Lobato 270 13083-862 Campinas, SP Brazil
| | - Igor D. Jurberg
- State University of CampinasInstitute of Chemistry. Rua Monteiro Lobato 270 13083-862 Campinas, SP Brazil
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142
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Orłowska K, Rybicka-Jasińska K, Krajewski P, Gryko D. Photochemical Doyle–Kirmse Reaction: A Route to Allenes. Org Lett 2020; 22:1018-1021. [DOI: 10.1021/acs.orglett.9b04560] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Katarzyna Orłowska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | | | - Piotr Krajewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
- Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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143
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Djordjevic I, Wicaksono G, Solic I, Steele TW. Diazoalkane decay kinetics from UVA-active protein labelling molecules: Trifluoromethyl phenyl diazirines. RESULTS IN CHEMISTRY 2020. [DOI: 10.1016/j.rechem.2020.100066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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144
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He F, Pei C, Koenigs RM. Photochemical fluoro-amino etherification reactions of aryldiazoacetates with NFSI under stoichiometric conditions. Chem Commun (Camb) 2020; 56:599-602. [DOI: 10.1039/c9cc08888a] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photochemical three-component reaction is reported that allows the introduction of fluorine and a short polyether side chain in high efficiency under metal-free conditions.
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Affiliation(s)
- Feifei He
- RWTH Aachen University
- Institute of Organic Chemistry
- 52074 Aachen
- Germany
| | - Chao Pei
- RWTH Aachen University
- Institute of Organic Chemistry
- 52074 Aachen
- Germany
| | - Rene M. Koenigs
- RWTH Aachen University
- Institute of Organic Chemistry
- 52074 Aachen
- Germany
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145
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146
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He F, Li F, Koenigs RM. Metal-Free Insertion Reactions of Silanes with Aryldiazoacetates. J Org Chem 2019; 85:1240-1246. [DOI: 10.1021/acs.joc.9b02605] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Feifei He
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Fang Li
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Rene M. Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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147
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Chidley T, Jameel I, Rizwan S, Peixoto PA, Pouységu L, Quideau S, Hopkins WS, Murphy GK. Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal-free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019; 58:16959-16965. [PMID: 31486231 DOI: 10.1002/anie.201908994] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 12/21/2022]
Abstract
A facile and highly chemoselective synthesis of doubly activated cyclopropanes is reported where mixtures of alkenes and β-dicarbonyl-derived iodonium ylides are irradiated with light from blue LEDs. This metal-free synthesis gives cyclopropanes in yields up to 96 %, is operative with cyclic and acyclic ylides, and proceeds with a variety of electronically-diverse alkenes. Computational analysis explains the high selectivity observed, which derives from exclusive HOMO to LUMO excitation, instead of free carbene generation. The procedure is operationally simple, uses no photocatalyst, and provides access in one step to important building blocks for complex molecule synthesis.
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Affiliation(s)
- Tristan Chidley
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Islam Jameel
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Shafa Rizwan
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Philippe A Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - W Scott Hopkins
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Graham K Murphy
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
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148
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Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal‐free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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149
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Sun R, Du Y, Tian C, Li L, Wang H, Zhao Y. Copper(II)‐catalyzed Domino Reaction of the Acyclic Ketene‐(
S
,
S
)‐Acetals with Diazo Compounds: Convenient Synthesis of Poly‐substituted Thiophenes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ran Sun
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Yang Du
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Cui Tian
- Luzhou Agricultural Bureau Jiangyang West Road 4 Luzhou 646000 People's Republic of China
| | - Lei Li
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - He Wang
- School of Chemistry and Materials ScienceLiaoning Shihua University Dandong Road 1 Fushun 113001 People's Republic of China
| | - Yu‐Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
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150
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Jana S, Aseeva P, Koenigs RM. Rhodium catalysed synthesis of seleno-ketals via carbene transfer reactions of diazoesters. Chem Commun (Camb) 2019; 55:12825-12828. [PMID: 31595906 DOI: 10.1039/c9cc06830a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herein, we report on rhodium catalysed carbene transfer reactions of diazoesters with diselenides that result in the formal insertion reaction of the carbene fragment into the Se-Se bond to give seleno-ketals in up to 96% yield (35 examples) via an ionic mechanism.
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Affiliation(s)
- Sripati Jana
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany.
| | - Polina Aseeva
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany.
| | - Rene M Koenigs
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany.
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