151
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Cao W, Wu C, Lei T, Yang X, Chen B, Tung C, Wu L. Photocatalytic hydrogen-evolution dimerization of styrenes to synthesize 1,2-dihydro-1-arylnaphthalene derivatives using Acr+-Mes and cobaloxime catalysts. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63095-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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152
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Sultan S, Rizvi MA, Kumar J, Shah BA. Acyl Radicals from Terminal Alkynes: Photoredox-Catalyzed Acylation of Heteroarenes. Chemistry 2018; 24:10617-10620. [DOI: 10.1002/chem.201801628] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Shaista Sultan
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Jammu- 180001 India
| | | | - Jaswant Kumar
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Jammu- 180001 India
| | - Bhahwal Ali Shah
- Natural Product Microbes and ACSIR; CSIR-Indian Institute of Integrative Medicine; Jammu- 180001 India
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153
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Marzo L, Pagire SK, Reiser O, König B. Photokatalyse mit sichtbarem Licht: Welche Bedeutung hat sie für die organische Synthese? Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709766] [Citation(s) in RCA: 306] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Leyre Marzo
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Santosh K. Pagire
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
| | - Burkhard König
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Deutschland
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154
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Marzo L, Pagire SK, Reiser O, König B. Visible-Light Photocatalysis: Does It Make a Difference in Organic Synthesis? Angew Chem Int Ed Engl 2018; 57:10034-10072. [PMID: 29457971 DOI: 10.1002/anie.201709766] [Citation(s) in RCA: 1132] [Impact Index Per Article: 188.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/12/2018] [Indexed: 12/12/2022]
Abstract
Visible-light photocatalysis has evolved over the last decade into a widely used method in organic synthesis. Photocatalytic variants have been reported for many important transformations, such as cross-coupling reactions, α-amino functionalizations, cycloadditions, ATRA reactions, or fluorinations. To help chemists select photocatalytic methods for their synthesis, we compare in this Review classical and photocatalytic procedures for selected classes of reactions and highlight their advantages and limitations. In many cases, the photocatalytic reactions proceed under milder reaction conditions, typically at room temperature, and stoichiometric reagents are replaced by simple oxidants or reductants, such as air, oxygen, or amines. Does visible-light photocatalysis make a difference in organic synthesis? The prospect of shuttling electrons back and forth to substrates and intermediates or to selectively transfer energy through a visible-light-absorbing photocatalyst holds the promise to improve current procedures in radical chemistry and to open up new avenues by accessing reactive species hitherto unknown, especially by merging photocatalysis with organo- or metal catalysis.
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Affiliation(s)
- Leyre Marzo
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Santosh K Pagire
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
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155
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Kittikool T, Thupyai A, Phomphrai K, Yotphan S. Copper/Persulfate-Promoted Oxidative Decarboxylative C−H Acylation of Pyrazolones with α-Oxocarboxylic Acids: Direct Access to 4-Acylpyrazolones under Mild Conditions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800464] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tanakorn Kittikool
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Akkharaphong Thupyai
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering; School of Molecular Science and Engineering; Vidyasirimedhi Institute of Science and Technology (VISTEC); Wangchan Rayong 21210 Thailand
| | - Sirilata Yotphan
- Center of Excellence for Innovation in Chemistry (PERCH-CIC); Department of Chemistry; Faculty of Science; Mahidol University; Bangkok 10400 Thailand
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156
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Bonfield HE, Williams JD, Ooi WX, Leach SG, Kerr WJ, Edwards LJ. A Detailed Study of Irradiation Requirements Towards an Efficient Photochemical Wohl‐Ziegler Procedure in Flow. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201800082] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Holly E. Bonfield
- API Chemistry GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage, Hertfordshire SG1 2NY UK
| | - Jason D. Williams
- API Chemistry GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage, Hertfordshire SG1 2NY UK
- Department of Pure and Applied Chemistry WestCHEM University of Strathclyde 295 Cathedral Street Glasgow, Scotland G1 1XL UK
| | - Wei Xiang Ooi
- API Chemistry GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage, Hertfordshire SG1 2NY UK
| | - Stuart G. Leach
- API Chemistry GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage, Hertfordshire SG1 2NY UK
| | - William J. Kerr
- Department of Pure and Applied Chemistry WestCHEM University of Strathclyde 295 Cathedral Street Glasgow, Scotland G1 1XL UK
| | - Lee J. Edwards
- API Chemistry GlaxoSmithKline Medicines Research Centre Gunnels Wood Road Stevenage, Hertfordshire SG1 2NY UK
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157
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Sakakibara Y, Cooper P, Murakami K, Itami K. Photoredox-Catalyzed Decarboxylative Oxidation of Arylacetic Acids. Chem Asian J 2018; 13:2410-2413. [DOI: 10.1002/asia.201800529] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 04/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Yota Sakakibara
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Phillippa Cooper
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
- JST-ERATO, Itami Molecular Nanocarbon Project; Nagoya University; Chikusa Nagoya 464-8602 Japan
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158
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Sakakibara Y, Ito E, Fukushima T, Murakami K, Itami K. Late-Stage Functionalization of Arylacetic Acids by Photoredox-Catalyzed Decarboxylative Carbon-Heteroatom Bond Formation. Chemistry 2018; 24:9254-9258. [DOI: 10.1002/chem.201802143] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Yota Sakakibara
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Eri Ito
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Tomohiro Fukushima
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
- JST-ERATO, Itami Molecular Nanocarbon Project; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science; Nagoya University; Chikusa Nagoya 464-8602 Japan
- JST-ERATO, Itami Molecular Nanocarbon Project; Nagoya University; Chikusa Nagoya 464-8602 Japan
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159
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Mahajan PS, Mhaske SB. Silver-Mediated Oxidative Decarboxylative Intramolecular Asymmetric Radical Cyclization (C sp3-C sp2) via Memory of Chirality: Access to Circumdatin Alkaloids. Org Lett 2018; 20:2092-2095. [PMID: 29578718 DOI: 10.1021/acs.orglett.8b00652] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel silver-mediated oxidative decarboxylative intramolecular asymmetric radical cyclization has been developed to form a Csp3-Csp2 bond via memory of chirality. The application of the process has been demonstrated for the synthesis of the circumdatin class of alkaloids in high enantiopurity with retention of the configuration. The developed protocol is mild and works with an inexpensive silver catalyst in the absence of ligand, base, or additives. The involvement of a monoradical in the reaction has been established by trapping the radical intermediate.
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160
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Cheng G, Lv W, Kuai C, Wen S, Xiao S. Base-promoted amide synthesis from aliphatic amines and ynones as acylation agents through C-C bond cleavage. Chem Commun (Camb) 2018; 54:1726-1729. [PMID: 29376172 DOI: 10.1039/c7cc09310a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A new protocol for the synthesis of amides via base-promoted cleavage of the C(sp)-C(CO) bond of ynones with aliphatic primary and secondary amines under transition-metal-, ligand-, and oxidant-free conditions has been developed. This method exhibits a wide substrate scope, high functional group tolerance and exclusive chemoselectivity, as well as mild reaction conditions.
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Affiliation(s)
- Guolin Cheng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China.
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161
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Tao L, Wang J, Zeng J, Gao GL, Yang C, Xia W. UV light-mediated decarboxylative cross-Coupling reaction of aryl acetic acids. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.08.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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162
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Silver-Catalyzed Decarboxylative Couplings of Acids and Anhydrides: An Entry to 1,2-Diketones and Aryl-Substituted Ethanes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701567] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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163
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Gao Q, Liu Z, Wang Y, Wu X, Zhang J, Wu A. I2
-Triggered Reductive Generation of N-Centered Iminyl Radicals: An Isatin-to-Quinoline Strategy for the Introduction of Primary Amides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701610] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qinghe Gao
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Zhaomin Liu
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Yakun Wang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
| | - Jixia Zhang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
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164
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Synthesis of 2,5-disubstituted 1,3,4-oxadiazoles by visible-light-mediated decarboxylation–cyclization of hydrazides and diketones. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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165
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Svejstrup TD, Zawodny W, Douglas JJ, Bidgeli D, Sheikh NS, Leonori D. Visible-light-mediated generation of nitrile oxides for the photoredox synthesis of isoxazolines and isoxazoles. Chem Commun (Camb) 2018; 52:12302-12305. [PMID: 27711298 DOI: 10.1039/c6cc06029c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light photoredox catalysis enables the synthesis of biologically relevant isoxazolines and isoxazoles from hydroxyimino acids. The process shows broad functional group compatibility and mechanistic and computational studies support a visible-light-mediated generation of nitrile oxides by two sequential oxidative single electron transfer processes.
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Affiliation(s)
- Thomas D Svejstrup
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Wojciech Zawodny
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - James J Douglas
- AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, UK
| | - Damon Bidgeli
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Nadeem S Sheikh
- Department of Chemistry, Faculty of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Daniele Leonori
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
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166
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Jin Y, Yang H, Fu H. An N-(acetoxy)phthalimide motif as a visible-light pro-photosensitizer in photoredox decarboxylative arylthiation. Chem Commun (Camb) 2018; 52:12909-12912. [PMID: 27739553 DOI: 10.1039/c6cc06994k] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An efficient visible-light photoredox decarboxylative coupling of N-(acetoxy)phthalimides with aryl thiols has been developed. The reaction was performed well at room temperature with good tolerance of functional groups. Importantly, the visible-light photoredox decarboxylative arylthiation did not need an added photocatalyst.
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Affiliation(s)
- Yunhe Jin
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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167
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Jiang H, Studer A. α-Aminoxy-Acid-Auxiliary-Enabled Intermolecular Radical γ-C(sp3
)−H Functionalization of Ketones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712066] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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168
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Jiang H, Studer A. α-Aminoxy-Acid-Auxiliary-Enabled Intermolecular Radical γ-C(sp3
)−H Functionalization of Ketones. Angew Chem Int Ed Engl 2018; 57:1692-1696. [DOI: 10.1002/anie.201712066] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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169
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Yu Y, Yuan W, Huang H, Cai Z, Liu P, Sun P. Visible-Light-Mediated Decarboxylative Alkylation Cascade Cyano Insertion/Cyclization of N-Arylacrylamides under Transition-Metal-Free Conditions. J Org Chem 2018; 83:1654-1660. [DOI: 10.1021/acs.joc.7b03080] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yulan Yu
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Weiwen Yuan
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Hansheng Huang
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Zhiqiang Cai
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials
Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes
and Pollution Control, Jiangsu Collaborative Innovation Center of
Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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170
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Kong W, Yu C, An H, Song Q. Photoredox-Catalyzed Decarboxylative Alkylation of Silyl Enol Ethers To Synthesize Functionalized Aryl Alkyl Ketones. Org Lett 2018; 20:349-352. [PMID: 29300492 DOI: 10.1021/acs.orglett.7b03587] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Photoredox-catalyzed decarboxylative alkylation of silyl enol ethers has been developed. Diverse functionalized aryl alkyl ketones were afforded in modest to good yields using N-(acyloxy)phthalimide as an easy access alkyl radical source under mild and operationally simple conditions. The excellent performance of drug molecules such as fenbufen and indomethacin and naturally occurring carboxylic acids such as stearic acid and dehydrocholic acid further demonstrated the practicability of the reaction.
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Affiliation(s)
- Weiguang Kong
- Institute of Next Generation Matter Transformation, College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Changjiang Yu
- Institute of Next Generation Matter Transformation, College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Hejun An
- Institute of Next Generation Matter Transformation, College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering & College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
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171
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Yang Q, Jia Z, Li L, Zhang L, Luo S. Visible-light promoted arene C–H/C–X lactonizationviacarboxylic radical aromatic substitution. Org Chem Front 2018. [DOI: 10.1039/c7qo00826k] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Photocatalytic carboxylic radical aromatic substitution enables the synthesis of diversely substituted coumarins by inert C–X bond cleavage under mild conditions.
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Affiliation(s)
- Qi Yang
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Zongbin Jia
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Longji Li
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Long Zhang
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- Beijing
- China
- University of Chinese Academy of Sciences
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- Beijing
- China
- University of Chinese Academy of Sciences
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172
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Deng L, Huang B, Liu Y. Copper(ii)-mediated, carbon degradation-based amidation of phenylacetic acids toward N-substituted benzamides. Org Biomol Chem 2018; 16:1552-1556. [DOI: 10.1039/c8ob00064f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The carbon degradation-based amidation of phenylacetic acids with aryl amides has been realized in the presence of Cu(OAc)2, which provides a practical route in the synthesis of N-aryl secondary benzamides.
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Affiliation(s)
- Leiling Deng
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Bin Huang
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
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173
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Miyazawa K, Ochi R, Koike T, Akita M. Photoredox radical C–H oxygenation of aromatics with aroyloxylutidinium salts. Org Chem Front 2018. [DOI: 10.1039/c8qo00089a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The peroxide-free aroyloxylation of aromatics with N-aroyloxylutidinium salts by photoredox catalysis has been developed.
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Affiliation(s)
- Kazuki Miyazawa
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Rika Ochi
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Takashi Koike
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
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174
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Zhu L, Ye JH, Duan M, Qi X, Yu DG, Bai R, Lan Y. The mechanism of copper-catalyzed oxytrifluoromethylation of allylamines with CO2: a computational study. Org Chem Front 2018. [DOI: 10.1039/c7qo00838d] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We propose a novel Cu(i)–Cu(ii) catalytic cycle for the copper-catalyzed oxytrifluoromethylation of allylamines with CO2, which proceeds through a radical–radical cross-coupling pathway.
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Affiliation(s)
- Lei Zhu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Jian-Heng Ye
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Meng Duan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
- College of Chemistry and Molecular Engineering
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175
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Gao Q, Yan H, Wu M, Sun J, Yan X, Wu A. Direct synthesis of 2-methylpyridines via I2-triggered [3 + 2 + 1] annulation of aryl methyl ketoxime acetates with triethylamine as the carbon source. Org Biomol Chem 2018. [DOI: 10.1039/c8ob00349a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
I2-Triggered reductive generation of iminyl radicals for the synthesis of 2-methylpyridines by employing triethylamine as the carbon source.
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Affiliation(s)
- Qinghe Gao
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Huijuan Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Manman Wu
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Jiajia Sun
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Xiqing Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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176
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Yi H, Liu Y, Lei A. Green Cross-Coupling Using Visible Light for C–O and C–N Bond Formation. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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177
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Deol H, Kumar M, Bhalla V. Exploring organic photosensitizers based on hemicyanine derivatives: a sustainable approach for preparation of amide linkages. RSC Adv 2018; 8:31237-31245. [PMID: 35548727 PMCID: PMC9085617 DOI: 10.1039/c8ra06232c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022] Open
Abstract
Hemicyanine derivatives C1–C4 have been synthesized and show strong absorption in the visible region, good water solubility, efficient intersystem crossing, a high singlet oxygen quantum yield and high ability to transport electrons from the donor to acceptor. These hemicyanine derivatives were utilized as photocatalysts in additive/base free oxidative amidation of aromatic aldehydes in mixed aqueous media under visible light irradiation at low catalytic loading. The hemicyanine derivative C4 exhibited recyclability upto four cycles and reusability upto five cycles in oxidative amidation of aromatic aldehydes. Among all the hemicyanine derivatives, C4 shows a high photocatalytic efficiency due to a high singlet oxygen quantum yield. All the mechanism investigations showed involvement of reactive oxygen species generated by the organic triplet photosensitizer based on hemicyanine derivative for carrying out oxidative amidation of aldehyde. Our results will encourage the design of new “metal free” organic photosensitizers and their application in photocatalysis. Hemicyanine derivatives C1–C4 have been synthesized and utilized as photocatalysts in additive/base free oxidative amidation of aromatic aldehydes in mixed aqueous media under visible light irradiation at low catalytic loading.![]()
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Affiliation(s)
- Harnimarta Deol
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar 143005
- India
| | - Manoj Kumar
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar 143005
- India
| | - Vandana Bhalla
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar 143005
- India
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178
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Capaldo L, Riccardi R, Ravelli D, Fagnoni M. Acyl Radicals from Acylsilanes: Photoredox-Catalyzed Synthesis of Unsymmetrical Ketones. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03719] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Luca Capaldo
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Riccardo Riccardi
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Davide Ravelli
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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179
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Dong W, Yuan Y, Hu B, Gao X, Gao H, Xie X, Zhang Z. Combining Visible-Light-Photoredox and Lewis Acid Catalysis for the Synthesis of Indolizino[1,2-b]quinolin-9(11H)-ones and Irinotecan Precursor. Org Lett 2017; 20:80-83. [DOI: 10.1021/acs.orglett.7b03395] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wuheng Dong
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yao Yuan
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Bei Hu
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoshuang Gao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huang Gao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaomin Xie
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhaoguo Zhang
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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180
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Zhu J, Yang WC, Wang XD, Wu L. Photoredox Catalysis in C-S Bond Construction: Recent Progress in Photo-Catalyzed Formation of Sulfones and Sulfoxides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701194] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jie Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Wen-Chao Yang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- College of Plant Protection; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Xiao-dong Wang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences; Nanjing Agricultural University; Nanjing 210095 People's Republic of China
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
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181
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C(sp3)–H bond functionalization of non-cyclic ethers by decarboxylative oxidative coupling with α,β-unsaturated carboxylic acids. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9142-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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182
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Ruzi R, Zhang M, Ablajan K, Zhu C. Photoredox-Catalyzed Deoxygenative Intramolecular Acylation of Biarylcarboxylic Acids: Access to Fluorenones. J Org Chem 2017; 82:12834-12839. [DOI: 10.1021/acs.joc.7b02197] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rehanguli Ruzi
- Key
Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and
Xinjiang Uygur Autonomous Region, College of Chemistry and Chemical
Engineering, Xinjiang University, Urumqi 830046, P. R. China
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Muliang Zhang
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Keyume Ablajan
- Key
Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and
Xinjiang Uygur Autonomous Region, College of Chemistry and Chemical
Engineering, Xinjiang University, Urumqi 830046, P. R. China
| | - Chengjian Zhu
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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183
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Ye J, Wu J, Lv T, Wu G, Gao Y, Chen H. Oxidative Rearrangement Coupling Reaction for the Functionalization of Tetrahydro-β-carbolines with Aromatic Amines. Angew Chem Int Ed Engl 2017; 56:14968-14972. [PMID: 28961354 DOI: 10.1002/anie.201708893] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Indexed: 02/05/2023]
Abstract
The observation of an unexpected oxidative rearrangement coupling reaction led to the development of a novel method for the efficient functionalization of tetrahydro-β-carbolines (THβCs). The treatment of THβCs with photogenerated singlet oxygen (1 O2 ) afforded unstable dioxetanes, which underwent further transformation to form new bonds in the presence of trifluoroacetic acid. This operationally simple protocol exhibits broad functional-group tolerance and is suitable for the late-stage functionalization of complex druglike molecules.
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Affiliation(s)
- Jinxiang Ye
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Jianlei Wu
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Tingting Lv
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Guolin Wu
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Yu Gao
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Haijun Chen
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
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184
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Ye J, Wu J, Lv T, Wu G, Gao Y, Chen H. Oxidative Rearrangement Coupling Reaction for the Functionalization of Tetrahydro-β-carbolines with Aromatic Amines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708893] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinxiang Ye
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
| | - Jianlei Wu
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
| | - Tingting Lv
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
| | - Guolin Wu
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
| | - Yu Gao
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
| | - Haijun Chen
- College of Chemistry; Fuzhou University; Fuzhou Fujian 350116 China
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185
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Iminyl-Radicals by Oxidation of α-Imino-oxy Acids: Photoredox-Neutral Alkene Carboimination for the Synthesis of Pyrrolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706270] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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186
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Jiang H, Studer A. Iminyl-Radicals by Oxidation of α-Imino-oxy Acids: Photoredox-Neutral Alkene Carboimination for the Synthesis of Pyrrolines. Angew Chem Int Ed Engl 2017; 56:12273-12276. [DOI: 10.1002/anie.201706270] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstraße 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstraße 40 48149 Münster Germany
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187
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Ge L, Li Y, Jian W, Bao H. Alkyl Esterification of Vinylarenes Enabled by Visible-Light-Induced Decarboxylation. Chemistry 2017; 23:11767-11770. [PMID: 28681966 DOI: 10.1002/chem.201702385] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Liang Ge
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; University of Chinese Academy of Sciences; 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; University of Chinese Academy of Sciences; 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Wujun Jian
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; University of Chinese Academy of Sciences; 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; University of Chinese Academy of Sciences; 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
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188
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Laha JK, Patel KV, Sharma S. Palladium-Catalyzed Decarboxylative Ortho-Acylation of Tertiary Benzamides with Arylglyoxylic Acids. ACS OMEGA 2017; 2:3806-3815. [PMID: 31457692 PMCID: PMC6641690 DOI: 10.1021/acsomega.7b00717] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/11/2017] [Indexed: 06/10/2023]
Abstract
A palladium-catalyzed ortho-acylation of tertiary benzamides using arylglyoxylic acids has been described. Unlike the palladium insertion reported to occur in the distorted N-C(O) amide bond of tertiary benzamides, the current study unveils ortho C-H palladation in acylic or cyclic N,N-dialkylbenzamides affording ortho-acylated tertiary benzamides in good to excellent yields. Our experimental study on the mechanism provides information on the tendency of the amide nitrogen toward weak coordination with palladium as opposed to oxygen. However, density functional theory calculations suggest coordination of amide oxygen to palladium, which makes the mechanism especially interesting. A Pd(II)/Pd(III) catalytic cycle and nucleophilic attack by the acyl radical rather than arylglyoxylate anion are supported by mechanistic studies.
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189
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Lima DB, Penteado F, Vieira MM, Alves D, Perin G, Santi C, Lenardão EJ. α-Keto Acids as Acylating Agents in the Synthesis of 2-Substituted Benzothiazoles and Benzoselenazoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700648] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- David B. Lima
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
| | - Filipe Penteado
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
| | - Marcelo M. Vieira
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
| | - Claudio Santi
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo 1 06100 Perugia (PG) Italy
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica - Limpa LASOL; Federal University of Pelotas - UFPel; P. O. Box 354 96010-900 Pelotas - RS Brazil
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190
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Zhu YP, Mampuys P, Sergeyev S, Ballet S, Maes BUW. Amine Activation:N-Arylamino Acid Amide Synthesis from Isothioureas and Amino Acids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yan-Ping Zhu
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Pieter Mampuys
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Sergey Sergeyev
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Bioengineering Sciences and Chemistry; Vrije Universiteit Brussel; Pleinlaan 2, B- 1050 Brussels Belgium
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B- 2020 Antwerp Belgium
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191
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Zhang M, Ruzi R, Xi J, Li N, Wu Z, Li W, Yu S, Zhu C. Photoredox-Catalyzed Hydroacylation of Olefins Employing Carboxylic Acids and Hydrosilanes. Org Lett 2017; 19:3430-3433. [DOI: 10.1021/acs.orglett.7b01391] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Muliang Zhang
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Rehanguli Ruzi
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Junwei Xi
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Nan Li
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhongkai Wu
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Weipeng Li
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Shouyun Yu
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Chengjian Zhu
- State
Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of
Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
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192
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Yang Z, Hu R, Li X, Wang X, Gu R, Han S. One-pot copper-catalyzed synthesis of 2-substituted benzothiazoles from 2-iodoanilines, benzyl chlorides and elemental sulfur. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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193
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Xie J, Rudolph M, Rominger F, Hashmi ASK. Photoredox-Controlled Mono- and Di-Multifluoroarylation of C(sp 3 )-H Bonds with Aryl Fluorides. Angew Chem Int Ed Engl 2017; 56:7266-7270. [PMID: 28514050 DOI: 10.1002/anie.201700135] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/05/2017] [Indexed: 11/08/2022]
Abstract
A controllable mono- and di-multifluoroarylation of acyclic and cyclic N-aryl amines with aryl fluorides by photocatalyzed dual C(sp3 )-H/C(sp2 )-F functionalization has been developed, providing new access to a wide array of valuable α-fluoroarylated amines. In addition, the one-pot consecutive hetero-di-multifluoroarylation of N-aryl pyrrolidines and N,N-dimethylanilines was achieved with high to excellent diastereoselectivity. This new defluorinative C(sp3 )-C(sp2 ) coupling is distinguished by a broad scope, good regioselectivity, and mild conditions as well as gram-scale and late-stage applicability, and thus constitutes a significant advance in the arylation of unactivated C(sp3 )-H bonds with aryl fluorides.
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Affiliation(s)
- Jin Xie
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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194
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Xie J, Rudolph M, Rominger F, Hashmi ASK. Photoredox-gesteuerte Mono- und Di-Multifluorarylierung von C(sp3
)-H-Bindungen mit Arylfluoriden. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700135] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jin Xie
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - Frank Rominger
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi-Arabien
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195
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Garza-Sanchez RA, Tlahuext-Aca A, Tavakoli G, Glorius F. Visible Light-Mediated Direct Decarboxylative C–H Functionalization of Heteroarenes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01133] [Citation(s) in RCA: 188] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- R. Aleyda Garza-Sanchez
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Adrian Tlahuext-Aca
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Ghazal Tavakoli
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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196
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Hu D, Wang L, Li P. Decarboxylative Borylation of Aliphatic Esters under Visible-Light Photoredox Conditions. Org Lett 2017; 19:2770-2773. [PMID: 28474531 DOI: 10.1021/acs.orglett.7b01181] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The conventional methods for preparing alkyl boronates often necessitate anhydrous and demanding reaction conditions. Herein, a new, operationally simple decarboxylative borylation reaction of readily available aliphatic acid derivatives under additive-free visible-light photoredox conditions in nonanhydrous solvents has been described. Primary and secondary alkyl boronates or tetrafluoroborates with various functional groups were prepared accordingly. A catalytic cycle involving alkyl radical reaction with base-activated diboron species has been proposed.
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Affiliation(s)
- Dawei Hu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University , Xi'an, Shaanxi 710054, China
| | - Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University , Xi'an, Shaanxi 710054, China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University , Xi'an, Shaanxi 710054, China
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197
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Daşkapan T, Çiçek S. High yielding electrophilic amination method for arylcopper reagents. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1295082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tahir Daşkapan
- Department of Chemistry, Faculty of Science, Ankara University, Ankara, Turkey
| | - Semra Çiçek
- Department of Chemistry, Faculty of Science, Ankara University, Ankara, Turkey
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198
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Qi X, Zhu L, Bai R, Lan Y. Stabilization of Two Radicals with One Metal: A Stepwise Coupling Model for Copper-Catalyzed Radical-Radical Cross-Coupling. Sci Rep 2017; 7:43579. [PMID: 28272407 PMCID: PMC5341085 DOI: 10.1038/srep43579] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/25/2017] [Indexed: 01/24/2023] Open
Abstract
Transition metal-catalyzed radical-radical cross-coupling reactions provide innovative methods for C-C and C-heteroatom bond construction. A theoretical study was performed to reveal the mechanism and selectivity of the copper-catalyzed C-N radical-radical cross-coupling reaction. The concerted coupling pathway, in which a C-N bond is formed through the direct nucleophilic addition of a carbon radical to the nitrogen atom of the Cu(II)-N species, is demonstrated to be kinetically unfavorable. The stepwise coupling pathway, which involves the combination of a carbon radical with a Cu(II)-N species before C-N bond formation, is shown to be probable. Both the Mulliken atomic spin density distribution and frontier molecular orbital analysis on the Cu(II)-N intermediate show that the Cu site is more reactive than that of N; thus, the carbon radical preferentially react with the metal center. The chemoselectivity of the cross-coupling is also explained by the differences in electron compatibility of the carbon radical, the nitrogen radical and the Cu(II)-N intermediate. The higher activation free energy for N-N radical-radical homo-coupling is attributed to the mismatch of Cu(II)-N species with the nitrogen radical because the electrophilicity for both is strong.
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Affiliation(s)
- Xiaotian Qi
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
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199
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Le Vaillant F, Wodrich MD, Waser J. Room temperature decarboxylative cyanation of carboxylic acids using photoredox catalysis and cyanobenziodoxolones: a divergent mechanism compared to alkynylation. Chem Sci 2017; 8:1790-1800. [PMID: 28451301 PMCID: PMC5396527 DOI: 10.1039/c6sc04907a] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/13/2016] [Indexed: 12/22/2022] Open
Abstract
The one-step conversion of aliphatic carboxylic acids to the corresponding nitriles has been accomplished via the merger of visible light mediated photoredox and cyanobenziodoxolones (CBX) reagents. The reaction proceeded in high yields with natural and non-natural α-amino and α-oxy acids, affording a broad scope of nitriles with excellent tolerance of the substituents in the α position. The direct cyanation of dipeptides and drug precursors was also achieved. The mechanism of the decarboxylative cyanation was investigated both computationally and experimentally and compared with the previously developed alkynylation reaction. Alkynylation was found to favor direct radical addition, whereas further oxidation by CBX to a carbocation and cyanide addition appeared more favorable for cyanation. A concerted mechanism is proposed for the reaction of radicals with EBX reagents, in contrast to the usually assumed addition elimination process.
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Affiliation(s)
- Franck Le Vaillant
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École polytechnique fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
| | - Matthew D Wodrich
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École polytechnique fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis , Institut des Sciences et Ingénierie Chimiques , École polytechnique fédérale de Lausanne , CH-1015 Lausanne , Switzerland .
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200
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Zhang JJ, Cheng YB, Duan XH. Metal-Free Oxidative Decarboxylative Acylation/Ring Expansion of Vinylcyclobutanols withα-Keto Acids by Visible Light Photoredox Catalysis. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600729] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jin-Jiang Zhang
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an Shaannxi 710049 China
| | - Yuan-Bo Cheng
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an Shaannxi 710049 China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an Shaannxi 710049 China
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