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Díaz-Salazar H, Osorio-Ocampo G, Porcel S. Straightforward Access to Isoindoles and 1,2-Dihydrophthalazines Enabled by a Gold-Catalyzed Three-Component Reaction. J Org Chem 2024; 89:10163-10174. [PMID: 38989839 DOI: 10.1021/acs.joc.4c01039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
We describe herein a gold-catalyzed three-component reaction of o-alkynylbenzaldehydes, aryldiazonium salts, and trimethoxybenzene. This process enables the one-pot formation of valuable isoindoles and 1,2-dihydrophathalazines. The regioselectivity of the reaction is dictated by the nature of the aryldiazonium salt. Noticeably, the reaction is performed at room temperature under mild conditions and tolerates a variety of functional groups on both the o-alkynylbenzaldehyde and the aryldiazonium salt. Experimental mechanistic studies suggest that it is catalyzed by arylAu(III) species.
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Affiliation(s)
- Howard Díaz-Salazar
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - Gabriel Osorio-Ocampo
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - Susana Porcel
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
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2
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Ramesh G, Ramulu BV, Balamurugan R. Activation of o-Propargyl Alcohol Benzaldehydes under Acetalization Conditions for Intramolecular Electrophile Intercepted Meyer-Schuster Rearrangement. J Org Chem 2022; 87:8633-8647. [PMID: 35687605 DOI: 10.1021/acs.joc.2c00826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reactivity of o-propargyl alcohol benzaldehydes has been increased tremendously toward Brønsted acid-catalyzed intramolecular electrophile intercepted Meyer-Schuster (M-S) rearrangement under acetalization conditions using trimethyl orthoformate (TMOF). The in situ formed acetal transfers the methoxy group intramolecularly to generate the M-S intermediate in even less reactive substrates, and the formed oxocarbenium ion makes the carbonyl more electrophilic for an effective intramolecular trapping of the M-S intermediate to furnish the indanone derivatives.
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Affiliation(s)
- Golla Ramesh
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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3
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Ramesh G, Balamurugan R. Triflic Acid-Catalyzed Synthesis of Indole-Substituted Indane Derivatives via In Situ Formed Acetal-Facilitated Nucleophilic Addition and 4π-Electron-5-Carbon Electrocyclization Sequence. J Org Chem 2021; 86:16278-16292. [PMID: 34762435 DOI: 10.1021/acs.joc.1c01396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient protocol for the synthesis of indole-substituted indanes from o-alkenylbenzaldehydes under acetalization conditions has been presented. The cyclization occurs via a nucleophilic addition of indole on the oxacarbenium ion generated from acetal formed under the reaction condition followed by a conrotatory 4π-electrocyclization reaction, which takes care of the exclusive diastereoselectivity observed during the cyclization step. Olefin geometry of o-alkenylbenzaldehyde and the amount of indole play a decisive role in the success of this cyclization process.
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Affiliation(s)
- Golla Ramesh
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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4
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Kishore DR, Shekhar C, Satyanarayana G. Lewis Acid Mediated Domino Intramolecular Cyclization: Synthesis of Dihydrobenzo[ a]fluorenes. J Org Chem 2021; 86:8706-8725. [PMID: 34110165 DOI: 10.1021/acs.joc.1c00525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient and facile method for the regioselective synthesis of novel dihydrobenzo[a]fluorenes from readily accessible alkynols is presented. The current strategy triggers the formation of a dual C-C bond intramolecularly via Lewis acid catalysis under mild reaction conditions. Notably, secondary as well as tertiary alcohols bearing an alkyne moiety have been smoothly transformed into the corresponding products. As a result, novel tetracyclic dihydrobenzo[a]fluorenes have been accomplished using this approach.
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Affiliation(s)
- Dakoju Ravi Kishore
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi 502 285, Sangareddy District, Telangana, India
| | - Chander Shekhar
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi 502 285, Sangareddy District, Telangana, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Kandi 502 285, Sangareddy District, Telangana, India
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5
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One-pot approach: Tandem consecutive Ugi-4CR/ACM-type reaction towards the synthesis of functionalised quinoline-2(1H)-one scaffolds. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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6
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Mandal M, Sakthivel S, Balamurugan R. Brønsted/Lewis Acid-Promoted Site-Selective Intramolecular Cycloisomerizations of Aryl-Fused 1,6-Diyn-3-ones for Diversity-Oriented Synthesis of Benzo-Fused Fluorenes and Fluorenones and Naphthyl Ketones. J Org Chem 2020; 86:333-351. [PMID: 33253563 DOI: 10.1021/acs.joc.0c02131] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a facile diversity-oriented approach to access functionalized benzo[a]fluorenes, benzo[b]fluorenones, and naphthyl ketones has been demonstrated via site-selective intramolecular cyclization of aryl-fused 1,6-diyn-3-ones. Synthesis of benzo[a]fluorenes and naphthyl ketones has been achieved selectively using TfOH and AgBF4, respectively, via in situ-formed acetals. Aryl-fused 1,6-diyn-3-ones undergo triflic acid-mediated intramolecular cyclization, leading to benzo[b]fluorenone derivatives via a radical intermediate as supported by EPR studies. Kinetic studies of these transformations have also been performed by UV-visible spectroscopic analysis to shed light on the reaction profile.
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Affiliation(s)
- Mou Mandal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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7
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Chen S, Bai R, Li M, Liu P, Gu Y. Acid‐Acid‐Catalyzed Tandem Reactions Driven by an Additive‐Like Component. CHEM REC 2020. [DOI: 10.1002/tcr.202000097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shaomin Chen
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832004 P.R. China
| | - Rongxian Bai
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
| | - Minghao Li
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
| | - Ping Liu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832004 P.R. China
| | - Yanlong Gu
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Lanzhou 730000 P.R. China
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8
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Khademi Z, Nikoofar K. Applications of alkyl orthoesters as valuable substrates in organic transformations, focusing on reaction media. RSC Adv 2020; 10:30314-30397. [PMID: 35559005 PMCID: PMC9092620 DOI: 10.1039/d0ra05276k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/27/2020] [Indexed: 02/01/2023] Open
Abstract
In this review we focus on applications of alkyl orthoesters as valuable and efficient substrates to perform various classes of two-component and multi-component organic reactions. The article has classified them according to two aspects, which are: (i) a focus on the reaction medium (solvent-free conditions, aqueous media, and organic solvents); and (ii) an examination of product structures. Reaction accomplishment under solvent-free conditions is an eco-friendly process with the absence of volatile toxic solvents, which puts it in line with green chemistry goals. Water is an interesting choice in organic transformations due to its inexpensiveness and safety. The authors hope their assessment will help chemists to attain new approaches for utilizing alkyl orthoesters in various organic synthetic methods. The review covers the corresponding literature up to the beginning of 2020. In this review we focus on applications of alkyl orthoesters as valuable and efficient substrates to perform various classes of two-component and multi-component organic reactions.![]()
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Affiliation(s)
- Zahra Khademi
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University P.O. Box 1993891176 Tehran Iran +982188041344 +982188041344
| | - Kobra Nikoofar
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University P.O. Box 1993891176 Tehran Iran +982188041344 +982188041344
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9
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Isoquinolone Synthesis via Zn(OTf)2-Catalyzed Aerobic Cyclocondensation of 2-(1-Alkynyl)-benzaldehydes with Arylamines. Catalysts 2020. [DOI: 10.3390/catal10060683] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A zinc(II) triflate-catalyzed cyclocondensation of ortho-alkynylbenzaldehydes with arylamines in the presence of base under an oxygen atmosphere affording isoquinolones in good to high yields has been developed. The advantages of the present catalyst system include the use of an air-stable and cheap commercially available Lewis acid as the catalyst, high atom utilization and easily available starting materials.
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10
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Das A, Sarkar S, Chakraborty B, Kar A, Jana U. Catalytic Alkyne/Alkene-Carbonyl Metathesis: Towards the Development of Green Organic Synthesis. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346106666191105144019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The construction of carbon-carbon bond through the metathesis reactions between carbonyls
and olefins or alkynes has attracted significant interest in organic chemistry due to its high atomeconomy
and efficiency. In this regard, carbonyl–alkyne metathesis is well developed and widely used
in organic synthesis for the atom-efficient construction of various carbocycles and heterocycles in the
presence of catalytic Lewis acids or Brønsted acids. On the other hand, alkene-carbonyl metathesis is
recently developed and has been a topic of great importance in the field of organic chemistry because
they possess attractive qualities involving metal-mediated, metal-free intramolecular, photochemical,
Lewis acid-mediated ring-closing metathesis, ring-opening metathesis and cross-metathesis. This review
covers most of the strategies of carbonyl–alkyne and carbonyl–olefin metathesis reactions in the
synthesis of complex molecules, natural products and pharmaceuticals as well as provides an overview
of exploration of the metathesis reactions with high atom-economy as well as environmentally and
ecologically benign reaction conditions.
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Affiliation(s)
- Aniruddha Das
- Department of Chemistry, Jadavpur University, 188 Raja S. C. Mallick Road, Kolkata–700032, India
| | - Soumen Sarkar
- Department of Chemistry, Balurghat College, Balurghat, West Bengal 733103, India
| | - Baitan Chakraborty
- Department of Chemistry, Jadavpur University, 188 Raja S. C. Mallick Road, Kolkata–700032, India
| | - Abhishek Kar
- Department of Chemistry, Jadavpur University, 188 Raja S. C. Mallick Road, Kolkata–700032, India
| | - Umasish Jana
- Department of Chemistry, Jadavpur University, 188 Raja S. C. Mallick Road, Kolkata–700032, India
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11
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Gao J, Liu C, Li Z, Liang H, Ao Y, Zhao J, Wang Y, Wu Y, Liu Y. Catalytic C-C Cleavage/Alkyne-Carbonyl Metathesis Sequence of Cyclobutanones. Org Lett 2020; 22:3993-3999. [PMID: 32352299 DOI: 10.1021/acs.orglett.0c01317] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A ring-opening/alkyne-carbonyl metathesis sequence of alkyne-tethered cyclobutanones catalyzed by AgSbF6 is realized for the first time to furnish multisubstituted naphthyl ketones under mild conditions. A range of substrates decorated with various substituents at different positions were all well accommodated. Preliminary mechanistic studies show that silver salt acted as a Lewis acid to facilitate both C-C cleavage of the cyclobutanone moiety and the subsequent metathesis between C═O and C≡C bonds.
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Affiliation(s)
- Jiqiang Gao
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Chunhui Liu
- School of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan 461000, P.R. China.,College of Chemistry, and Institute of Green Catalysis, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Zhongjuan Li
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Haotian Liang
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Yuhui Ao
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Jinbo Zhao
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Yuchao Wang
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Yuanqi Wu
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
| | - Yu Liu
- Department of Chemistry, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P.R. China
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12
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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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13
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Affiliation(s)
- Longlong Li
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Chengjin Shi
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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14
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Gu Y, Wu F, Yang J. Oxidative [3+3] Annulation of Atropaldehyde Acetals with 1,3‐Bisnucleophiles: An Efficient Method of Constructing Six‐Membered Aromatic Rings, Including Salicylates and Carbazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800462] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yanlong Gu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
- State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical Physics Lanzhou 730000 People's Republic of China
| | - Fengtian Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
| | - Jian Yang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu road, Hongshan District Wuhan 430074 People's Republic of China
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15
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Perin G, Araujo DR, Nobre PC, Lenardao EJ, Jacob RG, Silva MS, Roehrs JA. Ultrasound-promoted synthesis of 2-organoselanyl-naphthalenes using Oxone ® in aqueous medium as an oxidizing agent. PeerJ 2018; 6:e4706. [PMID: 29761042 PMCID: PMC5944430 DOI: 10.7717/peerj.4706] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/15/2018] [Indexed: 01/30/2023] Open
Abstract
A green methodology to synthesize 2-organoselanyl-naphthalenes based on the reaction of alkynols with diaryl diselenides is described. The electrophilic species of selenium were generated in situ, by the oxidative cleavage of the Se–Se bond of diaryl diselenides by Oxone® using water as the solvent. The reactions proceeded efficiently under ultrasonic irradiation as an alternative energy source, using a range of alkynols and diorganyl diselenides as starting materials. Through this methodology, the corresponding 2-organoselanyl-naphthalenes were obtained in moderate to good yields (56–94%) and in short reaction times (0.25–2.3 h).
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Affiliation(s)
- Gelson Perin
- Laboratório de Síntese Orgânica Limpa-LASOL, Centro de Ciencias Quimicas, Farmaceuticas e de Alimentos-CCQFA, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Daniela Rodrigues Araujo
- Laboratório de Síntese Orgânica Limpa-LASOL, Centro de Ciencias Quimicas, Farmaceuticas e de Alimentos-CCQFA, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Patrick Carvalho Nobre
- Laboratório de Síntese Orgânica Limpa-LASOL, Centro de Ciencias Quimicas, Farmaceuticas e de Alimentos-CCQFA, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Eder João Lenardao
- Laboratório de Síntese Orgânica Limpa-LASOL, Centro de Ciencias Quimicas, Farmaceuticas e de Alimentos-CCQFA, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Raquel Guimarães Jacob
- Laboratório de Síntese Orgânica Limpa-LASOL, Centro de Ciencias Quimicas, Farmaceuticas e de Alimentos-CCQFA, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Marcio Santos Silva
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Juliano Alex Roehrs
- Instituto Federal de Educação Ciência e Tecnologia Sul-rio-grandense-IFSul, Pelotas, Rio Grande do Sul, Brazil
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16
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Mandal M, Balamurugan R. Triflic acid-Mediated Expedient Synthesis of Benzo[a
]fluorenes and Fluorescent Benzo[a
]fluorenones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701516] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mou Mandal
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad- 500046 India
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17
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Dell'Acqua M, Pirovano V, Peroni S, Tseberlidis G, Nava D, Rossi E, Abbiati G. Silver-Catalysed Domino Approach to 1,3-Dicarbo-Substituted Isochromenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601602] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monica Dell'Acqua
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
| | - Valentina Pirovano
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
| | - Stefano Peroni
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
| | - Giorgio Tseberlidis
- Dipartimento di Chimica; Università degli Studi di Milano; Via Golgi, 19 20133 Milano Italy
| | - Donatella Nava
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
| | - Elisabetta Rossi
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
| | - Giorgio Abbiati
- Dipartimento di Scienze Farmaceutiche; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian, 21 20133 Milano Italy
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18
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Murai K, Tateishi K, Saito A. Barluenga's reagent with HBF4as an efficient catalyst for alkyne-carbonyl metathesis of unactivated alkynes. Org Biomol Chem 2016; 14:10352-10356. [DOI: 10.1039/c6ob02090a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Barluenga's reagent (IPy2BF4, Py = pyridine) treated with HBF4efficiently catalyzes the inter- and intramolecular alkyne-carbonyl metathesis of unactivated alkynes. This work represents the first catalytic application of the Barluenga's reagent.
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Affiliation(s)
- Kosuke Murai
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei
- Japan
| | - Keiichiro Tateishi
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei
- Japan
| | - Akio Saito
- Division of Applied Chemistry
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Koganei
- Japan
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19
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Saito A, Tateishi K. Syntheses of Heterocycles via Alkyne-Carbonyl Metathesis of Unactivated Alkynes. HETEROCYCLES 2016. [DOI: 10.3987/rev-15-836] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Manojveer S, Balamurugan R. In Situ Formed Acetal-Facilitated Synthesis of Substituted Indene Derivatives from o-Alkenylbenzaldehydes. Org Lett 2015; 17:3600-3. [DOI: 10.1021/acs.orglett.5b01695] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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