1
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Vil' V, Grishin S, Baberkina E, Alekseenko A, Glinushkin A, Kovalenko A, Terent'ev A. Electrochemical Synthesis of Tetrahydroquinolines from Imines and Cyclic Ethers via Oxidation/Aza‐Diels‐Alder Cycloaddition. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vera Vil'
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences RUSSIAN FEDERATION
| | - Sergei Grishin
- Zelinsky Institute of Organic Chemistry RAS RUSSIAN FEDERATION
| | - Elena Baberkina
- Dmitry Mendeleev University of Chemical Technology of Russia RUSSIAN FEDERATION
| | - Anna Alekseenko
- Zelinsky Institute of Organic Chemistry RAS RUSSIAN FEDERATION
| | | | - Alexey Kovalenko
- Dmitry Mendeleev University of Chemical Technology of Russia RUSSIAN FEDERATION
| | - Alexander Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences RUSSIAN FEDERATION
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2
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Guo J, Chen ZS, Chen WS, Zhao X, Ji K. Gold(I)-Catalyzed Oxidative Amination of β-Amino-ynones to Quaternary Ammonium-olate Salts: The Benefit of a P,N-Bidentate Ligand. Org Lett 2021; 23:8873-8877. [PMID: 34748358 DOI: 10.1021/acs.orglett.1c03382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel P,N-bidentate ligand-assisted gold-catalyzed oxidative amination of β-amino-ynones has been developed, allowing the simple and efficient construction of various quaternary ammonium-olate salts in good to excellent yields. These unprecedented quaternary ammonium-olate salts can be isolated and purified via simple suction filtration. The broad substrate scope, easy purification, easy further transformation, and mild conditions make it a viable alternative for the synthesis of various quaternary ammonium-olate salts.
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Affiliation(s)
- Jing Guo
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Wen-Shuai Chen
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Xin Zhao
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China.,School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou 014060, P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling, Shaanxi 712100, China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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3
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Jiang L, Wang Z, Armstrong M, Suero MG. β-Diazocarbonyl Compounds: Synthesis and their Rh(II)-Catalyzed 1,3 C-H Insertions. Angew Chem Int Ed Engl 2021; 60:6177-6184. [PMID: 33275325 DOI: 10.1002/anie.202015077] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Indexed: 12/28/2022]
Abstract
Herein, we describe the first electrophilic diazomethylation of ketone silyl enol ethers with diazomethyl-substituted hypervalent iodine reagents that gives access to unusual β-diazocarbonyl compounds. The potential of this unexplored class of diazo compounds for the development of new reactions was demonstrated by the discovery of a rare Rh-catalyzed intramolecular 1,3 C-H carbene insertion that led to complex cyclopropanes with excellent stereocontrol.
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Affiliation(s)
- Liyin Jiang
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Zhaofeng Wang
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Melanie Armstrong
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Marcos G Suero
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
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4
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Jiang L, Wang Z, Armstrong M, Suero MG. β‐Diazocarbonyl Compounds: Synthesis and their Rh(II)‐Catalyzed 1,3 C−H Insertions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Liyin Jiang
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Zhaofeng Wang
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Melanie Armstrong
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Marcos G. Suero
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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5
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Yamamoto K, López E, Barrio P, Borge J, López LA. Gold-Catalyzed [3+2] Carbocycloaddition Reaction of Pinacol Alkenylboronates: Stereospecific Synthesis of Boryl-Functionalized Cyclopentene Derivatives. Chemistry 2020; 26:6999-7003. [PMID: 32237097 DOI: 10.1002/chem.202001192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Gold-catalysis has enabled new synthetic opportunities in the chemistry of vinyldiazo compounds. Herein, we report the gold-catalyzed reaction of stabilized vinyldiazo compounds with pinacol alkenylboronates to provide boryl-functionalized cyclopentene derivatives through a formal [3+2] carbocycloaddition reaction, a very unusual pathway in alkenylboronate chemistry. This reaction proceeds with high regio- and stereoselectivity. The synthetic usefulness of the resulting borylated cyclopentene derivatives toward the synthesis of densely functionalized cyclopentanoids is also demonstrated.
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Affiliation(s)
- Kota Yamamoto
- Departamento de Química Orgánica e Inorgánica and Instituto, Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Enol López
- Departamento de Química Orgánica e Inorgánica and Instituto, Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Pablo Barrio
- Departamento de Química Orgánica e Inorgánica and Instituto, Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Javier Borge
- Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Luis A López
- Departamento de Química Orgánica e Inorgánica and Instituto, Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
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6
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Sekar Kulandai Raj A, Liu R. Gold‐catalyzed [4+3]‐Annulations of Benzopyriliums with Vinyldiazo Carbonyls to Form Bicyclic Heptatriene Rings with Skeletal Rearrangement. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Basic Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Fundamental and Basic Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
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7
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Skaria M, More SA, Kuo T, Cheng M, Liu R. Gold‐Catalyzed Iminations of Terminal Propargyl Alcohols with Anthranils with Atypical Chemoselectivity for C(1)‐Additions and 1,2‐Carbon Migration. Chemistry 2020; 26:3600-3608. [DOI: 10.1002/chem.201905283] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/16/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Manisha Skaria
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
| | - Sayaji Arjun More
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
| | - Tung‐Chun Kuo
- Department of ChemistryNational Cheng Kung University Tainan 701 Taiwan
| | - Mu‐Jeng Cheng
- Department of ChemistryNational Cheng Kung University Tainan 701 Taiwan
| | - Rai‐Shung Liu
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
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8
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Zheng H, Doyle MP. Catalytic Desymmetric Cycloaddition of Diaziridines with Metalloenolcarbenes: The Role of Donor–Acceptor Cyclopropenes. Angew Chem Int Ed Engl 2019; 58:12502-12506. [DOI: 10.1002/anie.201906754] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/27/2019] [Indexed: 01/17/2023]
Affiliation(s)
- Haifeng Zheng
- Department of ChemistryThe University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Michael P. Doyle
- Department of ChemistryThe University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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9
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Zheng H, Doyle MP. Catalytic Desymmetric Cycloaddition of Diaziridines with Metalloenolcarbenes: The Role of Donor–Acceptor Cyclopropenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haifeng Zheng
- Department of ChemistryThe University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Michael P. Doyle
- Department of ChemistryThe University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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10
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Chen C, Liu R. Gold‐catalyzed [4+2] Annulations of Dienes with Nitrosoarenes as 4 π Donors: Nitroso‐Povarov Reactions. Angew Chem Int Ed Engl 2019; 58:9831-9835. [DOI: 10.1002/anie.201903615] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/16/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Centers on Fundamental and Applied Science of Matters and Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
| | - Rai‐Shung Liu
- Frontier Research Centers on Fundamental and Applied Science of Matters and Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
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11
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Raj ASK, Liu RS. Gold-Catalyzed Bicyclic Annulations of 2-Alkynylbenzaldehydes with Vinyldiazo Carbonyls that Serve as Five-atom Building Units. Angew Chem Int Ed Engl 2019; 58:10980-10984. [PMID: 31132199 DOI: 10.1002/anie.201905350] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/23/2019] [Indexed: 12/23/2022]
Abstract
This work reports gold-catalyzed bicyclic annulations of 2-alkynyl-1-carbonylbenzenes with vinyldiazo ketones that serve as five-atom building units. The importance of these reactions is to access 4,5-dihydro-benzo[g]indazoles, which form the structural cores of various bioactive molecules. According to our mechanistic analysis, we postulate initial [5+4]-cycloadditions between benzopyrilium intermediates and vinyldiazo ketones, followed by 6-π-electrocyclizations to achieve the excellent stereoselectivity.
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Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center for Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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12
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Raj ASK, Liu R. Gold‐Catalyzed Bicyclic Annulations of 2‐Alkynylbenzaldehydes with Vinyldiazo Carbonyls that Serve as Five‐atom Building Units. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Applied Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Fundamental and Applied Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
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13
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Chen C, Liu R. Gold‐catalyzed [4+2] Annulations of Dienes with Nitrosoarenes as 4 π Donors: Nitroso‐Povarov Reactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903615] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Centers on Fundamental and Applied Science of Matters and Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
| | - Rai‐Shung Liu
- Frontier Research Centers on Fundamental and Applied Science of Matters and Department of ChemistryNational Tsing-Hua University Hsinchu Taiwan
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14
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Sarabia FJ, Li Q, Ferreira EM. Cyclopentene Annulations of Alkene Radical Cations with Vinyl Diazo Species Using Photocatalysis. Angew Chem Int Ed Engl 2018; 57:11015-11019. [PMID: 29964359 PMCID: PMC6319273 DOI: 10.1002/anie.201805732] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/12/2018] [Indexed: 12/22/2022]
Abstract
A direct (3+2) cycloaddition between alkenes and vinyl diazo reagents using either Cr or Ru photocatalysis is described. The intermediacy of a radical cation species enables a nucleophilic interception by vinyl diazo compounds, a departure from their traditional electrophilic behavior. A variety of cyclopentenes are synthesized using this method, and experimental insights implicate a direct cycloaddition instead of a cyclopropanation/rearrangement process.
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Affiliation(s)
| | - Qiankun Li
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
| | - Eric M Ferreira
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
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15
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Sarabia FJ, Li Q, Ferreira EM. Cyclopentene Annulations of Alkene Radical Cations with Vinyl Diazo Species Using Photocatalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805732] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Qiankun Li
- Department of Chemistry University of Georgia Athens GA 30602 USA
| | - Eric M. Ferreira
- Department of Chemistry University of Georgia Athens GA 30602 USA
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16
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Pawar SK, Yang MC, Su MD, Liu RS. Gold-Catalyzed Oxidative [2+2+1] Annulations of Aryldiazo Nitriles with Imines To Yield Polyarylated Imidazolium Salts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Ming-Chung Yang
- Department of Chemistry; National Chia-Yi, University; Chiayi Taiwan, ROC
| | - Ming-Der Su
- Department of Chemistry; National Chia-Yi, University; Chiayi Taiwan, ROC
| | - Rai-Shung Liu
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan, ROC
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17
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Pawar SK, Yang MC, Su MD, Liu RS. Gold-Catalyzed Oxidative [2+2+1] Annulations of Aryldiazo Nitriles with Imines To Yield Polyarylated Imidazolium Salts. Angew Chem Int Ed Engl 2017; 56:5035-5039. [PMID: 28371080 DOI: 10.1002/anie.201701157] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 11/10/2022]
Abstract
Gold-catalyzed oxidative [2+2+1] annulations between two imines and one α-cyano arylgold carbene afforded polyarylated imidazolium salts and molecular hydrogen efficiently. Control experiments suggest that the gold catalyst alone facilitates the main annulation, whereas Ag+ avoids the formation of inactive LAuCN. DFT calculations suggest that the success of this annulation relies on a 6 π-electrocyclization of cyano-free intermediates with cis-configured imines as initial reagents.
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Affiliation(s)
- Samir Kundlik Pawar
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Ming-Chung Yang
- Department of Chemistry, National Chia-Yi, University, Chiayi, Taiwan, ROC
| | - Ming-Der Su
- Department of Chemistry, National Chia-Yi, University, Chiayi, Taiwan, ROC
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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18
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López E, López LA. Synthesis of Functionalized Cyclopentene Derivatives from Vinyldiazo Compounds and Vinylazides through Sequential Copper-Promoted [3+2] Cycloaddition/Azide Rearrangement. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701572] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Enol López
- Departmento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006- Oviedo Spain
| | - Luis A. López
- Departmento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006- Oviedo Spain
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19
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López E, López LA. Synthesis of Functionalized Cyclopentene Derivatives from Vinyldiazo Compounds and Vinylazides through Sequential Copper-Promoted [3+2] Cycloaddition/Azide Rearrangement. Angew Chem Int Ed Engl 2017; 56:5121-5124. [DOI: 10.1002/anie.201701572] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/07/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Enol López
- Departmento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006- Oviedo Spain
| | - Luis A. López
- Departmento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006- Oviedo Spain
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20
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Kale BS, Lee HF, Liu RS. A Sequential Route to Cyclopentenes from 1,6-Enynes and Diazo Ketones through Gold and Rhodium Catalysis. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600980] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Balaji S. Kale
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan
| | - Hsin-Fu Lee
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan
| | - Rai-Shung Liu
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan
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21
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López E, González-Pelayo S, López LA. Recent Developments in Coinage Metal Catalyzed Transformations of Stabilized Vinyldiazo Compounds: Beyond Carbenic Pathways. CHEM REC 2016; 17:312-325. [PMID: 27701805 DOI: 10.1002/tcr.201600099] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Indexed: 12/12/2022]
Abstract
Transition metal-catalyzed transformations of vinyldiazo compounds have become a versatile tool in organic synthesis. Although several transition metals have been investigated for this purpose, this field has been mainly dominated by dirhodium catalysts. Remarkable levels of chemo-, regio-, diastereo- and enantioselectivity have been reached in some of these rhodium-catalyzed transformations. In the last few years coinage metals have also emerged as useful catalysts in transformations involving vinyldiazo compounds. In some cases, highly efficient catalyst-dependent protocols arising from divergent mechanistic pathways have been reported. In this Personal Account, we aim to showcase recent advances in metal coinage catalyzed transformations of vinyldiazoacetates, an exciting field of research to which our group has actively contributed in the last few years.
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Affiliation(s)
- Enol López
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Silvia González-Pelayo
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
| | - Luis A López
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006-, Oviedo, Spain
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22
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Zhu C, Xu G, Sun J. Gold-Catalyzed Formal [4+1]/[4+3] Cycloadditions of Diazo Esters with Triazines. Angew Chem Int Ed Engl 2016; 55:11867-71. [PMID: 27539065 DOI: 10.1002/anie.201606139] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Indexed: 11/10/2022]
Abstract
Reported herein is the unprecedented gold-catalyzed formal [4+1]/[4+3] cycloadditions of diazo esters with hexahydro-1,3,4-triazines, thus providing five- and seven-membered heterocycles in moderate to high yields under mild reaction conditions. These reactions feature the use of a gold complex to accomplish the diverse annulations and the first example of the involvement of a gold metallo-enolcarbene in a cycloaddition. It is also the first utilization of stable triazines as formal dipolar adducts in the carbene-involved cycloadditions. Mechanistic investigations reveal that the triazines reacted directly, rather than as formaldimine precursors, in the reaction process.
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Affiliation(s)
- Chenghao Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, 1 Gehu Road, 213164, Changzhou, China. ,
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23
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Zhu C, Xu G, Sun J. Gold-Catalyzed Formal [4+1]/[4+3] Cycloadditions of Diazo Esters with Triazines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606139] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chenghao Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Pharmaceutical Engineering & Life Science; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Pharmaceutical Engineering & Life Science; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Pharmaceutical Engineering & Life Science; Changzhou University; 1 Gehu Road 213164 Changzhou China
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Ji K, Yang F, Gao S, Tang J, Gao J. Gold‐Catalyzed Oxidation/C−H Functionalization of Ynones: Efficient and Rapid Access to Functionalized Polycyclic Salicyl Ketones. Chemistry 2016; 22:10225-9. [DOI: 10.1002/chem.201600736] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Fang Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Shiyue Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Jiangjiang Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
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25
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Yao X, Wang T, Zhang X, Wang P, Zhang B, Wei J, Zhang Z. One-Pot Synthesis of 4-Heteroaryl-Substituted Pyrazoles: A Gold-Catalyzed Oxidation/1,2-Heteroaryl Migration Cascade Constitutes the Key Step. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600168] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Singh RR, Liu RS. Gold-Catalyzed Imination/Mannich Reaction Cascades of 3-En-1-ynamides with Anilines and Aldehydes to Enable 1,5-Nitrogen Functionalizations. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600072] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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27
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Unusual Regioselectivity in the Gold(I)-Catalyzed [3+2] Carbocycloaddition Reaction of Vinyldiazo Compounds and N-Allenamides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501039] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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28
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Chen H, Zhang L. A Desulfonylative Approach in Oxidative Gold Catalysis: Regiospecific Access to Donor-Substituted Acyl Gold Carbenes. Angew Chem Int Ed Engl 2015; 54:11775-9. [PMID: 26266676 DOI: 10.1002/anie.201504511] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/04/2015] [Indexed: 11/09/2022]
Abstract
Donor-substituted acyl gold carbenes are challenging to access selectively by gold-promoted intermolecular oxidation of internal alkynes as the opposite regioisomers frequently predominate. By using alkynyl sulfones or sulfonates as substrates, the oxidative gold catalysis in the presence of substituted pyridine N-oxides offers regiospecific access to acyl/aryl, acyl/alkenyl, and acyl/alkoxy gold carbenes by in situ expulsion of sulfur dioxide. The intermediacies of these reactive species are established by their reactivities, including undergoing further oxidation by the same oxidant, cyclopropanation of styrenes, engaging in a [3+2] cycloaddition with α-methylstyrene, and conversion into dienones.
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Affiliation(s)
- Hongyi Chen
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA (USA) http://www.chem.ucsb.edu/∼zhang/index.html
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA (USA) http://www.chem.ucsb.edu/∼zhang/index.html.
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29
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Chen H, Zhang L. A Desulfonylative Approach in Oxidative Gold Catalysis: Regiospecific Access to Donor-Substituted Acyl Gold Carbenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504511] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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30
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Zhu C, Qiu L, Xu G, Li J, Sun J. Base-Promoted/Gold-Catalyzed Intramolecular Highly Selective and Controllable Detosylative Cyclization. Chemistry 2015. [DOI: 10.1002/chem.201502073] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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31
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Pagar VV, Liu RS. Gold-Catalyzed Cycloaddition Reactions of Ethyl Diazoacetate, Nitrosoarenes, and Vinyldiazo Carbonyl Compounds: Synthesis of Isoxazolidine and Benzo[b]azepine Derivatives. Angew Chem Int Ed Engl 2015; 54:4923-6. [DOI: 10.1002/anie.201500340] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 01/02/2023]
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32
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Pagar VV, Liu RS. Gold-Catalyzed Cycloaddition Reactions of Ethyl Diazoacetate, Nitrosoarenes, and Vinyldiazo Carbonyl Compounds: Synthesis of Isoxazolidine and Benzo[b]azepine Derivatives. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500340] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Ji K, Zheng Z, Wang Z, Zhang L. Enantioselective oxidative gold catalysis enabled by a designed chiral P,N-bidentate ligand. Angew Chem Int Ed Engl 2015; 54:1245-9. [PMID: 25431180 PMCID: PMC4300284 DOI: 10.1002/anie.201409300] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Indexed: 11/12/2022]
Abstract
A newly developed P,N-bidentate ligand enables enantioselective intramolecular cyclopropanation by a reactive α-oxo gold carbene intermediate generated in situ. The ligand design is based on our previously proposed structure (with a well-organized triscoordinated gold center) of the carbene intermediate in the presence of a P,N-bidentate ligand. A C2-symmetric piperidine ring was incorporated in the ligand as the nitrogen-containing moiety. A range of racemic transformations of α-oxo gold carbene intermediates have been developed recently, and this new class of chiral ligands could enable their modification for asymmetric synthesis, as demonstrated in this study.
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Affiliation(s)
- Kegong Ji
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA), Fax: (+1) 805-893-4120, Homepage: http://www.chem.ucsb.edu/~zhang/index.html
| | - Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA), Fax: (+1) 805-893-4120, Homepage: http://www.chem.ucsb.edu/~zhang/index.html
| | - Zhixun Wang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA), Fax: (+1) 805-893-4120, Homepage: http://www.chem.ucsb.edu/~zhang/index.html
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA), Fax: (+1) 805-893-4120, Homepage: http://www.chem.ucsb.edu/~zhang/index.html
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34
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Ji K, Zheng Z, Wang Z, Zhang L. Enantioselective Oxidative Gold Catalysis Enabled by a Designed Chiral P,N-Bidentate Ligand. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409300] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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35
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Xu G, Zhu C, Gu W, Li J, Sun J. Gold(I)-Catalyzed Diazo Cross-Coupling: A Selective and Ligand-Controlled Denitrogenation/Cyclization Cascade. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409845] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Xu G, Zhu C, Gu W, Li J, Sun J. Gold(I)-catalyzed diazo cross-coupling: a selective and ligand-controlled denitrogenation/cyclization cascade. Angew Chem Int Ed Engl 2014; 54:883-7. [PMID: 25385462 DOI: 10.1002/anie.201409845] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Indexed: 11/10/2022]
Abstract
An unprecedented gold-catalyzed ligand-controlled cross-coupling of diazo compounds by sequential selective denitrogenation and cyclization affords N-substituted pyrazoles in a position-switchable mode. This novel transformation features selective decomposition of one diazo moiety and simultaneous preservation of the other one from two substrates. Notably, the choice of the ancillary ligand to the gold complex plays a pivotal role on the chemo- and regioselectivity of the reactions.
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Affiliation(s)
- Guangyang Xu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164 (China)
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37
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Hurst TE, Gorman RM, Drouhin P, Perry A, Taylor RJK. A Direct CH/ArH Coupling Approach to Oxindoles, Thio‐oxindoles, 3,4‐Dihydro‐1
H
‐quinolin‐2‐ones, and 1,2,3,4‐Tetrahydroquinolines. Chemistry 2014; 20:14063-73. [DOI: 10.1002/chem.201403917] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Indexed: 12/27/2022]
Affiliation(s)
- Timothy E. Hurst
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Ryan M. Gorman
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Pauline Drouhin
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
| | - Alexis Perry
- Physics and Medical Imaging, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Physics Building, Stocker Road, Exeter, EX4 4QL (UK)
| | - Richard J. K. Taylor
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK), Fax: (+44) 1904324523
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38
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Zhang D, Xu G, Ding D, Zhu C, Li J, Sun J. Gold(I)-Catalyzed Diazo Coupling: Strategy towards Alkene Formation and Tandem Benzannulation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406712] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Gold(I)-Catalyzed Diazo Coupling: Strategy towards Alkene Formation and Tandem Benzannulation. Angew Chem Int Ed Engl 2014; 53:11070-4. [DOI: 10.1002/anie.201406712] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Indexed: 12/28/2022]
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40
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Xi Y, Su Y, Yu Z, Dong B, McClain EJ, Lan Y, Shi X. Chemoselective Carbophilic Addition of α-Diazoesters through Ligand-Controlled Gold Catalysis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404946] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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41
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Xi Y, Su Y, Yu Z, Dong B, McClain EJ, Lan Y, Shi X. Chemoselective carbophilic addition of α-diazoesters through ligand-controlled gold catalysis. Angew Chem Int Ed Engl 2014; 53:9817-21. [PMID: 25056282 DOI: 10.1002/anie.201404946] [Citation(s) in RCA: 227] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Indexed: 01/19/2023]
Abstract
The chemoselective addition of arenes and 1,3-diketones to α-aryldiazoesters was achieved through ligand-controlled gold catalysis. Unlike a dirhodium catalyst (which promotes C(sp3)-H insertion and cyclopropanation) and a copper catalyst (which catalyzes O-H and N-H insertions), the gold catalyst with an electron-deficient phosphite as the ancillary ligand exclusively gave the carbophilic addition product, thus representing a new and efficient approach to form "carbophilic carbocations", which selectively react with carbon nucleophiles.
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Affiliation(s)
- Yumeng Xi
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506 (USA) http://community.wvu.edu/∼xs007/
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42
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Pagar VV, Tseng CC, Liu RS. Gold-Catalyzed Oxa-Povarov Reactions for the Synthesis of Highly Substituted Dihydrobenzopyrans from Diaryloxymethylarenes and Olefins. Chemistry 2014; 20:10519-26. [DOI: 10.1002/chem.201403285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Indexed: 01/10/2023]
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43
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Dawande SG, Kanchupalli V, Kalepu J, Chennamsetti H, Lad BS, Katukojvala S. Rhodium Enalcarbenoids: Direct Synthesis of Indoles by Rhodium(II)-Catalyzed [4+2] Benzannulation of Pyrroles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400161] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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44
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Dawande SG, Kanchupalli V, Kalepu J, Chennamsetti H, Lad BS, Katukojvala S. Rhodium enalcarbenoids: direct synthesis of indoles by rhodium(II)-catalyzed [4+2] benzannulation of pyrroles. Angew Chem Int Ed Engl 2014; 53:4076-80. [PMID: 24590818 DOI: 10.1002/anie.201400161] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Indexed: 11/11/2022]
Abstract
Disclosed herein is the design of an unprecedented electrophilic rhodium enalcarbenoid which results from rhodium(II)-catalyzed decomposition of a new class of enaldiazo compounds. The synthetic utility of these enalcarbenoids has been successfully demonstrated in the first transition-metal-catalyzed [4+2] benzannulation of pyrroles, thus leading to substituted indoles. The new benzannulation has been applied to the efficient synthesis of the natural product leiocarpone as well as a potent adipocyte fatty-acid binding protein inhibitor.
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Affiliation(s)
- Sudam Ganpat Dawande
- Department of Chemistry, Indian Institute of Science Education & Research, Bhopal, Madhya Pradesh 462066 (India) http://home.iiserbhopal.ac.in/∼sk/
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45
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Ma B, Chen FL, Xu XY, Zhang YN, Hu LH. α-Diazo β-Keto Ester as Precursor to Aromatic CH Insertion and Wolff Rearrangement with Different Directing Groups. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300763] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Wang CD, Hsieh YF, Liu RS. Gold-Catalyzed Carboalkoxylations of 2-Ethynylbenzyl Ethers to form 1- and 2-Indanones Chemoselectively: Effects of Ligands and Solvents. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300988] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Bercovici DA, Ogilvie JM, Tsvetkov N, Brewer M. Intramolecular polar [4(⊕)+2] cycloadditions of aryl-1-aza-2-azoniaallene salts: unprecedented reactivity leading to polycyclic protonated azomethine imines. Angew Chem Int Ed Engl 2013; 52:13338-41. [PMID: 24218159 DOI: 10.1002/anie.201306553] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 09/24/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel A Bercovici
- Department of Chemistry, University of Vermont, 82 University Place, Burlington, VT 05405 (USA)
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48
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Bercovici DA, Ogilvie JM, Tsvetkov N, Brewer M. Intramolecular Polar [4 ⊕+2] Cycloadditions of Aryl-1-aza-2-azoniaallene Salts: Unprecedented Reactivity Leading to Polycyclic Protonated Azomethine Imines. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Yang LQ, Wang KB, Li CY. Synthesis of Oxindoles through the Gold-Catalyzed Oxidation ofN-Arylynamides. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300162] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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Barluenga J, Lonzi G, Tomás M, López LA. Reactivity of stabilized vinyl diazo derivatives toward unsaturated hydrocarbons: regioselective gold-catalyzed carbon-carbon bond formation. Chemistry 2012; 19:1573-6. [PMID: 23255306 DOI: 10.1002/chem.201203217] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Indexed: 11/06/2022]
Affiliation(s)
- José Barluenga
- Instituto Universitario de Química Organometálica "Enrique Moles", Universidad de Oviedo, c/Julián Clavería 8, 33007-Oviedo, Spain.
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