1
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Guin A, Bhattacharjee S, Biju AT. Transition-Metal-Free C2-Functionalization of Pyridines through Aryne Three-Component Coupling. Chemistry 2021; 27:13864-13869. [PMID: 34288154 DOI: 10.1002/chem.202102005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 12/29/2022]
Abstract
The direct C2-functionalization of pyridines through a transition-metal-free protocol by using aryne multicomponent coupling is demonstrated. The reaction allowed a broad-scope synthesis of C2-substituted pyridine derivatives bearing the -CF3 group in good yields with α,α,α-trifluoroacetophenones as the third component. Activated keto esters could also be employed as the third component in this formal 1,2-di(hetero)arylation of ketones. Performing the reaction under dilute conditions inhibited the competing pyridine-aryne polymerization pathway. Nucleophilic attack by the initially generated pyridylidene intermediate on the carbonyl followed by an SN Ar process resembling the Smiles rearrangement affords the desired products.
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Affiliation(s)
- Avishek Guin
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Subrata Bhattacharjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
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2
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Sunnam SK, Belani JD. Aryne Multicomponent Reactions by Directed C-H Activation. Chemistry 2021; 27:8846-8850. [PMID: 33848022 DOI: 10.1002/chem.202100205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 12/30/2022]
Abstract
Arylation via ortho C-H activation by the aid of directing groups has been explored recently by many researchers. Herein, a palladium-catalyzed C-H arylation using 8-aminoquinoline as a bidentate directing group has been developed. The reaction furnishes only C-H arylation, unlike previous methods where cyclization to corresponding isoquinolones is observed. More interestingly, sequential C-H functionalization was observed when methylacrylate and acrylonitrile was added; this led to C-H olefination with the aryl group, which was installed from the aryne precursor.
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Affiliation(s)
- Sunil Kumar Sunnam
- College of Pharmacy, Thomas Jefferson University, 1020 Locust street, Philadelphia, PA 19107, USA.,Present address: Dr. Reddy's Laboratories, IPDO, Sy No 42 45 46 & 54, Bachupally, Hyderabad, Telangana, 500090, India
| | - Jitendra D Belani
- College of Pharmacy, Thomas Jefferson University, 1020 Locust street, Philadelphia, PA 19107, USA
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3
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Hwu JR, Panja A, Gupta NK, Hu Y, Tan K, Lin C, Hwang K, Hsu M, Huang W, Tsay S. Domino Processes of Arynes Reacting with Three Classes of Nucleophiles for Organic Syntheses. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jih Ru Hwu
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Avijit Panja
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Nitesh K. Gupta
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Yu‐Chen Hu
- Department of Chemical Engineering National Tsing Hua University Hsinchu 30013 Taiwan
| | - Kui‐Thong Tan
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Chun‐Cheng Lin
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Kuo‐Chu Hwang
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Ming‐Hua Hsu
- Department of Chemistry National Changhua University of Education Changhua County 50007 Taiwan
| | - Wen‐Chieh Huang
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
| | - Shwu‐Chen Tsay
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 30013 Taiwan
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4
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Mirzaei A, Turczel G, Nagyházi M, Farkas V, Balla Á, Dang Vu H, Tuba R. Cyclative MCRs of Azines and Azinium Salts. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001048] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Anvar Mirzaei
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
- Department of Chemistry Faculty of Science Islamic Azad University Sanandaj Branch Iran
| | - Gábor Turczel
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Márton Nagyházi
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Vajk Farkas
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Áron Balla
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Hai Dang Vu
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
| | - Robert Tuba
- Research Centre for Natural Sciences Institute of Materials and Environmental Chemistry Magyar tudósok körútja 2, P.O. Box 286 1519 Budapest Hungary
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5
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Scherübl M, Daniliuc CG, Studer A. Arynes as Radical Acceptors: TEMPO-Mediated Cascades Comprising Addition, Cyclization, and Trapping. Angew Chem Int Ed Engl 2021; 60:711-715. [PMID: 33038065 PMCID: PMC7839731 DOI: 10.1002/anie.202012654] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/08/2020] [Indexed: 12/18/2022]
Abstract
The application of arynes as radical acceptors is described. The stable radical TEMPO (2,2,6,6-tetramethyl piperidine 1-oxyl) is shown to add to various ortho-substituted benzynes generating the corresponding aryl radicals which engage in 5-exo or 6-endo cyclizations. The cyclized radicals are eventually trapped by TEMPO. The introduced method provides ready access to various dihydrobenzofurans, oxindoles, and sultones by a conceptually novel approach.
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Affiliation(s)
- Maximilian Scherübl
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Constantin G. Daniliuc
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstraße 4048149MünsterGermany
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6
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Scherübl M, Daniliuc CG, Studer A. Arine als Radikalakzeptoren: TEMPO‐induzierte Kaskaden über Addition, Zyklisierung und Kreuzkupplung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Maximilian Scherübl
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Armido Studer
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
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7
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Bhattacharjee S, Raju A, Gaykar RN, Gonnade RG, Roy T, Biju AT. Rapid Synthesis of Zwitterionic Phosphonium Benzoates by a Three-Component Coupling Involving Phosphines, Arynes and CO 2. Chem Asian J 2020; 15:2203-2207. [PMID: 32488981 DOI: 10.1002/asia.202000610] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/01/2020] [Indexed: 12/28/2022]
Abstract
A mild and easy to perform multicomponent coupling involving phosphines, arynes generated from 2-(trimethylsilyl)aryl triflates, and CO2 allowing the transition-metal-free synthesis of zwitterionic phosphonium benzoates has been developed. The reaction proceeds via the generation of 1 : 1 zwitterionic intermediates from phosphines and arynes followed by the interception with CO2 to deliver the carboxylates in moderate to good yields instead of the anticipated benzooxaphosphol-3(1H)-ones.
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Affiliation(s)
- Subrata Bhattacharjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Anjali Raju
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Rahul N Gaykar
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Rajesh G Gonnade
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Tony Roy
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
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8
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Garanzini D, Pirovano V, Menghi I, Celentano G, Rizzato S, Rossi E, Caselli A, Abbiati G. [Ag(PcL)]‐Catalysed Domino Approach to 6‐Substituted Benzoxazino Isoquinolines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Davide Garanzini
- 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
| | - Ilaria Menghi
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini” Università degli Studi di Milano Via Venezian, 21 20133 Milano Italy
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi, 19 20133 Milano Italy
| | - Giuseppe Celentano
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini” Università degli Studi di Milano Via Venezian, 21 20133 Milano Italy
| | - Silvia Rizzato
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi, 19 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
| | - Alessandro Caselli
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi, 19 20133 Milano Italy
- CNR‐SCITEC Via Golgi, 19 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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9
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Xiao X, Wang T, Xu F, Hoye TR. Cu I -Mediated Bromoalkynylation and Hydroalkynylation Reactions of Unsymmetrical Benzynes: Complementary Modes of Addition. Angew Chem Int Ed Engl 2018; 57:16564-16568. [PMID: 30390400 PMCID: PMC6386157 DOI: 10.1002/anie.201811783] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Indexed: 11/10/2022]
Abstract
Benzynes formed by heating a suitable triyne (or tetrayne) substrate are shown to react with in situ generated alkynyl copper species. The latter are compatible with the polyyne substrates and two types of chemistries have been achieved: (i) 1-bromo-1-alkynes efficiently undergo net bromoalkynylation of the (unsymmetrical) benzynes and (ii) in situ generated alkynylcopper species give rise to hydroalkynylation products. The regiochemical preferences of these two modes of reaction are complementary to one another with respect to the position of alkynyl substituent in the final products.
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Affiliation(s)
- Xiao Xiao
- Department of Chemistry, University of Minnesota, 207
Pleasant St. SE, Minneapolis, Minnesota 55455 USA
| | - Tao Wang
- Department of Chemistry, University of Minnesota, 207
Pleasant St. SE, Minneapolis, Minnesota 55455 USA
| | - Feng Xu
- Department of Chemistry, University of Minnesota, 207
Pleasant St. SE, Minneapolis, Minnesota 55455 USA
| | - Thomas R. Hoye
- Department of Chemistry, University of Minnesota, 207
Pleasant St. SE, Minneapolis, Minnesota 55455 USA
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10
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Xiao X, Wang T, Xu F, Hoye TR. CuI
-Mediated Bromoalkynylation and Hydroalkynylation Reactions of Unsymmetrical Benzynes: Complementary Modes of Addition. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiao Xiao
- Department of Chemistry; University of Minnesota; 207 Pleasant St. SE Minneapolis MN 55455 USA
| | - Tao Wang
- Department of Chemistry; University of Minnesota; 207 Pleasant St. SE Minneapolis MN 55455 USA
| | - Feng Xu
- Department of Chemistry; University of Minnesota; 207 Pleasant St. SE Minneapolis MN 55455 USA
| | - Thomas R. Hoye
- Department of Chemistry; University of Minnesota; 207 Pleasant St. SE Minneapolis MN 55455 USA
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11
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Rao B, Tang J, Wei Y, Zeng X. Ring Expansion via Cleavage of Benzylic C−C Bonds Enabling Direct Synthesis of Medium Ring-Fused Benzocarbocycles. Chem Asian J 2016; 11:991-5. [DOI: 10.1002/asia.201600065] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 01/31/2023]
Affiliation(s)
- Bin Rao
- Center for Organic Chemistry; Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi 710054 P. R. China
| | - Jinghua Tang
- Center for Organic Chemistry; Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi 710054 P. R. China
| | - Yu Wei
- Center for Organic Chemistry; Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi 710054 P. R. China
| | - Xiaoming Zeng
- Center for Organic Chemistry; Frontier Institute of Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi 710054 P. R. China
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12
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Wang W, Peng X, Qin X, Zhao X, Ma C, Tung CH, Xu Z. Synthesis of quinolinones with palladium-catalyzed oxidative annulation between acrylamides and arynes. J Org Chem 2015; 80:2835-41. [PMID: 25686292 DOI: 10.1021/jo5027673] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An unprecedented palladium-catalyzed oxidative annulation of acrylamides with benzyne precursors has been successfully developed. By using this mild "N-H activation/Heck reaction" method, a wide variety of quinolinones were conveniently prepared in one step with high efficiency.
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Affiliation(s)
- Weiguo Wang
- Key Lab of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , No. 27 South Shanda Road, Jinan, Shandong 250100, China
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13
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Peng X, Wang W, Jiang C, Sun D, Xu Z, Tung CH. Strain-Promoted Oxidative Annulation of Arynes and Cyclooctynes with Benzamides: Palladium-Catalyzed C–H/N–H Activation for the Synthesis of N-Heterocycles. Org Lett 2014; 16:5354-7. [DOI: 10.1021/ol5025426] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xianglong Peng
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Weiguo Wang
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Chao Jiang
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Di Sun
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Zhenghu Xu
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Chen-Ho Tung
- Key Laboratory for Colloid
and Interface Chemistry of Education Ministry, School of chemistry
and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
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14
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Su S, Wang N, Li C, Song B, Jia X, Li J. Tandem Diels-Alder/Coupling Reaction Involving Two Arynes: Highly Stereoselective Synthesis of Dihydronaphtho-Fused Oxindole. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201300247] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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