1
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Maekawa K, Komine N, Kiyota S, Hirano M. Direct synthesis of conjugated tetraenes from 1,3-enynes with 1,3-dienes. Org Biomol Chem 2024; 22:2098-2114. [PMID: 38374804 DOI: 10.1039/d4ob00077c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
New direct access to conjugated tetraenes has been achieved. A Ru(0)-catalysed reaction of 1,3-enynes with 1,3-dienes gives 1,3,5,7-octatetraene derivatives by formal regioselective insertion of the alkynyl group of 1,3-enynes into the terminal C-H bond in 1,3-dienes. With a silyl substituent on the alkynyl side in 1,3-enynes, the reaction regioselectively proceeds to give the linear cross-dimerisation product having the silyl group at the internal position. Stoichiometric and DFT calculations support the oxidative coupling mechanism for the linear cross-dimerisation. Methyl (2E,4E,6E,8E)-10-hydroxy-2,4,6,8-decatetraenoate, a versatile polyene intermediate, is accessed by this method as a formal synthesis of biologically active compounds.
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Affiliation(s)
- Kanako Maekawa
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Nobuyuki Komine
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Sayori Kiyota
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Masafumi Hirano
- Department of Applied Chemistry, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
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2
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Medina-Gil T, Sadurní A, Hammarback LA, Echavarren AM. Gold(I)-Catalyzed Intermolecular Aryloxyvinylation with Acetylene Gas. ACS Catal 2023; 13:10751-10755. [PMID: 37614519 PMCID: PMC10442918 DOI: 10.1021/acscatal.3c02461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/18/2023] [Indexed: 08/25/2023]
Abstract
Acetylene gas is an important feedstock for chemical production, although it is underutilized in organic synthesis. We have developed an intermolecular gold(I)-catalyzed alkyne/alkene reaction of o-allylphenols with acetylene gas that gives rise to chromanes by a stereospecific aryloxycyclization through the nucleophilic regioselective opening of cyclopropyl gold(I)-carbene intermediates. The synthetic application of this method was demonstrated in the late-stage functionalization of the natural product lapachol.
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Affiliation(s)
- Tania Medina-Gil
- Institute of Chemical Research
of Catalonia (ICIQ), Barcelona Institute
of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química
Orgànica i Analítica, Universitat
Rovira i Virgili (URV), C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Anna Sadurní
- Institute of Chemical Research
of Catalonia (ICIQ), Barcelona Institute
of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química
Orgànica i Analítica, Universitat
Rovira i Virgili (URV), C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - L. Anders Hammarback
- Institute of Chemical Research
of Catalonia (ICIQ), Barcelona Institute
of Science and Technology (BIST), Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química
Orgànica i Analítica, Universitat
Rovira i Virgili (URV), C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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3
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Wang Q, Wang SL, Fan JB, Zeng GY, Zhou YJ, Deng X. Acid-promoted intra- and intermolecular [2+2] cycloaddition of indoles to aryl alkynes to access cyclobutene-fused indolines. Chem Commun (Camb) 2022; 58:9270-9273. [PMID: 35903993 DOI: 10.1039/d2cc02840a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we have reported the first example of both intra- and intermolecular [2+2] cycloaddition of the electron-rich indoles and unactivated aryl alkynes promoted by the combination of Fe(NO3)3 and HNO3, which highlights efficient and selective access to several different types of functionalized cyclobutene-fused indolines from readily available starting materials with cheap catalysts and simple operations.
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Affiliation(s)
- Qing Wang
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China
| | - Sen-Lin Wang
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China
| | - Jin-Bao Fan
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China
| | - Guang-Yao Zeng
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China.,Hunan Key laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, Hunan, 410013, P. R. China.
| | - Ying-Jun Zhou
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China.,Hunan Key laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, Hunan, 410013, P. R. China.
| | - Xu Deng
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, Hunan, 410013, P. R. China.,Hunan Key laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, Hunan, 410013, P. R. China.
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4
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Fernández-Canelas P, Barrio P, González JM. Merging gold catalysis and haloethynyl frames: emphasis on halide-shift processes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Zanini M, Cataffo A, Echavarren AM. Synthesis of Cyclobutanones by Gold(I)-Catalyzed [2 + 2] Cycloaddition of Ynol Ethers with Alkenes. Org Lett 2021; 23:8989-8993. [PMID: 34730987 DOI: 10.1021/acs.orglett.1c03499] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A broad scope synthesis of cyclobutanones by gold(I)-catalyzed [2 + 2] cycloaddition of ynol ethers with alkenes has been developed. We also found that internal aryl ynol ethers can undergo (4 + 2) cycloaddition reaction with alkenes leading to the corresponding chromanes.
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Affiliation(s)
- Margherita Zanini
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Andrea Cataffo
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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6
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Echavarren AM, Armengol-Relats H, Mato M, Escofet I. Assembling Complex Structures through Cascade and Cycloaddition Processes via Non-Acceptor Gold or Rhodium Carbenes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1535-3215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe ability of highly energetic metal–carbene intermediates to engage in complex cascade or formal cycloaddition processes is one of the most powerful tools for building intricate molecular architectures in a straightforward manner. Among this type of organometallic intermediates, non-acceptor metal carbenes are particularly challenging to access and, therefore, have experienced slower development. In this regard, our group has exploited the use of electrophilic gold(I) complexes to selectively activate certain classes of substrates for the generation of this type of intermediate. Thus, very different types of molecules, such as enynes or 7-substituted cycloheptatrienes, lead to the formation of carbenes under gold(I) catalysis. Related rhodium(II) carbenes can also be generated from cycloheptatrienes. In this account, we aim to summarize our efforts towards the in situ generation of such highly versatile organometallic species as well as studies on their reactivity through formal cycloadditions or complex cascade reactions.1 Introduction2 Generation of Au(I)-Vinylcarbenes via a Cycloisomerization/1,5-Alkoxy Migration Cascade2.1 Intramolecular Trapping of Au(I) Vinylcarbenes2.1.1 Applications in Total Synthesis2.2 Intermolecular Trapping of Au(I) Vinylcarbenes2.2.1 Total Synthesis of Schisanwilsonene A2.2.2 Trapping with Furans, 1,3-Dicarbonyl Compounds and Cyclic Alkenes2.2.3 Mechanism of the Cycloisomerization/1,5-Migration Sequence and the Role of the OR Migrating Group2.2.4 (4+3) Cycloadditions from Enynes3 Formal Cycloadditions of Simple Donor Metal Carbenes3.1 The Metal-Catalyzed Retro-Buchner Reaction3.2 Formal Cycloadditions with Non-Acceptor Carbenes via Metal-Catalyzed Aromative Decarbenations3.2.1 (4+1) Cycloadditions of Au(I) Carbenes3.2.2 (3+2) Cycloadditions of Au(I) Carbenes3.2.3 (4+3) Cycloadditions of Rh(II) Carbenes4 Concluding Remarks
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Affiliation(s)
- Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology
- Departament de Química Orgànica i Analítica, Universitat Rovira i Virgili
| | - Helena Armengol-Relats
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology
- Departament de Química Orgànica i Analítica, Universitat Rovira i Virgili
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology
- Departament de Química Orgànica i Analítica, Universitat Rovira i Virgili
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology
- Departament de Química Orgànica i Analítica, Universitat Rovira i Virgili
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7
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Biletskyi B, Colonna P, Masson K, Parrain JL, Commeiras L, Chouraqui G. Small rings in the bigger picture: ring expansion of three- and four-membered rings to access larger all-carbon cyclic systems. Chem Soc Rev 2021; 50:7513-7538. [PMID: 34002179 DOI: 10.1039/d0cs01396j] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The release of the inherent ring strain of cyclobutane and cyclopropane derivatives allows a rapid build-up of molecular complexity. This review highlights the state-of-the-art of the ring expansions of three- and four-membered cycles and is organised by types of reactions with emphasis on the reaction mechanisms. Selected examples are discussed to illustrate the synthetic potential of this elegant synthetic tool.
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Affiliation(s)
- Bohdan Biletskyi
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Pierre Colonna
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Kévin Masson
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Jean-Luc Parrain
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Laurent Commeiras
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Gaëlle Chouraqui
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France.
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8
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Serebryannikova AV, Galenko EE, Novikov MS, Khlebnikov AF. Product selectivity of thermal Buchner reaction of methyl 2-(3-arylisoxazol-5-yl)-2-diazoacetates with benzene, naphthalene and mesitylene, and ring-opening/closing reaction of products. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Galenko EE, Bodunov VA, Kryukova MA, Novikov MS, Khlebnikov AF. Buchner Reaction/Azirine Modification Approach Toward Cycloheptatriene Containing Nitrogen Heterocyclic Scaffolds. J Org Chem 2021; 86:4098-4111. [PMID: 33571409 DOI: 10.1021/acs.joc.0c02928] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The reaction conditions for the Buchner reaction of 2-(diazoacetyl)-2H-azirines with benzene leading to 2-(cyclohepta-2,4,6-trien-1-yl)-2H-azirines have been found. The azirine fragment of these compounds was subsequently used to prepare 5-(cyclohepta-2,4,6-trien-1-yl)isoxazoles and α-(cyclohepta-2,4,6-triene-1-ylcarbonyl)-1H-pyrroles. NMR and DFT calculations showed that the cycloheptatriene-norcaradiene valence isomerization in the corresponding moieties of synthesized azirines, isoxazoles, and pyrroles is very fast at room temperature. Cycloheptatriene valence isomer predominates in azirines and pyrroles, while 5-(cycloheptatrienyl)isoxazoles exist in a pure cycloheptatriene form at 25 °C in chloroform solution. In accordance with the X-ray analysis, two of the synthesized pyrroles crystallized as norcaradiene isomers from a solution of equilibrium mixture of valence isomers. Reductive isoxazole ring opening using the Mo(CO)6/H2O reductive system afforded (Z)-3-amino-3-aryl-1-(cyclohepta-2,4,6-trien-1-yl)prop-2-en-1-ones, which are pure cycloheptatriene isomers. α-(Cycloheptatrieneylcarbonyl)-1H-pyrroles were transformed into the α-(benzylcarbonyl)-1H-pyrroles under cooperative TFA/Rh2(TFA)4 catalysis.
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Affiliation(s)
- Ekaterina E Galenko
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Vladimir A Bodunov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mariya A Kryukova
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S Novikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F Khlebnikov
- Saint Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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10
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Wu P, Zheng C, Wang X, Wu J, Wu F. Copper‐Catalyzed Three‐Component Reactions of 2‐Iodo‐2,2‐difluoroacetophenones, Alkynes, and Trimethylsilyl Cyanide. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001650] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pingjie Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Cheng Zheng
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Xia Wang
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Jingjing Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 200032 Shanghai P. R. China
| | - Fanhong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
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11
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Abstract
Three- and four-membered rings, widespread motifs in nature and medicinal chemistry, have fascinated chemists ever since their discovery. However, due to energetic considerations, small rings are often difficult to assemble. In this regard, homogeneous gold catalysis has emerged as a powerful tool to construct these highly strained carbocycles. This review aims to provide a comprehensive summary of all the major advances and discoveries made in the gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their corresponding heterocyclic or heterosubstituted analogs.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Cristina Garcı A-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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12
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Abstract
Four carbon ring systems are frequently present in natural products with remarkable biological activities such as terpenoids, alkaloids, and steroids. The development of new strategies for the assembly of these structures in a rapid and efficient manner has attracted the interest of synthetic chemists for a long time. The current research is focused mainly on the development of synthetic methods that can be performed under mild reaction conditions with a high tolerance to functional groups. In recent years, gold complexes have turned into excellent candidates for this aim, owing to their high reactivity, and are thus capable of promoting a wide range of transformations under mild conditions. Their remarkable efficiency has been thoroughly demonstrated in the synthesis of complex organic molecules from simple starting materials. This review summarizes the main synthetic strategies described for gold-catalyzed four-carbon ring formation, as well as their application in the synthesis of natural products.
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13
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Schneider T, Keim M, Seitz B, Maas G. Reactions of 3-aryl-1-(trifluoromethyl)prop-2-yn-1-iminium salts with 1,3-dienes and styrenes. Beilstein J Org Chem 2020; 16:2064-2072. [PMID: 32952722 PMCID: PMC7476585 DOI: 10.3762/bjoc.16.173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/10/2020] [Indexed: 11/24/2022] Open
Abstract
3-Aryl-1-(trifluoromethyl)prop-2-yn-1-iminium triflate salts represent a novel, highly reactive class of acetylenic iminium salts. Herein we present several reactions which are based on the electron-poor acetylenic bond and on the high electrophilicity of the CF3-substituted iminium group. These salts were found to be highly reactive dienophiles in Diels–Alder reactions with cyclopentadiene, 2,3-dimethylbutadiene and even anthracene. At higher temperature, the cycloadducts undergo an intramolecular SE(Ar) reaction leading to condensed carbocycles incorporating a 1-(trifluoromethyl)-1-(dimethylamine)indene ring system. With styrenes and some substituted styrenes, cascade reactions take place, which likely include cyclobutene and several cationic intermediates and mainly yield 2-(1-phenylvinyl)indenes. In a similar reaction cascade, a fulvene derivative was obtained with 1,4-diphenylbutadiene as the substrate.
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Affiliation(s)
- Thomas Schneider
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Michael Keim
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Bianca Seitz
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Gerhard Maas
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
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14
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Scharnagel D, Escofet I, Armengol‐Relats H, de Orbe ME, Korber JN, Echavarren AM. Acetylene as a Dicarbene Equivalent for Gold(I) Catalysis: Total Synthesis of Waitziacuminone in One Step. Angew Chem Int Ed Engl 2020; 59:4888-4891. [PMID: 31912609 PMCID: PMC7078946 DOI: 10.1002/anie.201915895] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Indexed: 11/16/2022]
Abstract
The gold(I)-catalyzed reaction of acetylene gas with alkenes leads to (Z,Z)-1,4-disubstituted 1,3-butadienes and biscyclopropanes depending on the donor ligand on gold(I). Acetylene was generated in situ from calcium carbide and water in a user-friendly procedure. Reaction of acetylene with 1,5-dienes gives rise stereoselectively to tricyclo[5.1.0.02,4 ]octanes. This novel double cyclopropanation has been applied to the one step total synthesis of the natural product waitziacuminone from acetylene and geranyl acetone.
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Affiliation(s)
- Dagmar Scharnagel
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Helena Armengol‐Relats
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - M. Elena de Orbe
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - J. Nepomuk Korber
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
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15
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Scharnagel D, Escofet I, Armengol‐Relats H, Orbe ME, Korber JN, Echavarren AM. Acetylene as a Dicarbene Equivalent for Gold(I) Catalysis: Total Synthesis of Waitziacuminone in One Step. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dagmar Scharnagel
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Helena Armengol‐Relats
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - M. Elena Orbe
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - J. Nepomuk Korber
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
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16
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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de Orbe ME, Zanini M, Quinonero O, Echavarren AM. Gold- or Indium-Catalyzed Cross-Coupling of Bromoalkynes with Allylsilanes through a Concealed Rearrangement. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02314] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- M. Elena de Orbe
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Margherita Zanini
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Ophélie Quinonero
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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18
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Cañellas S, Montgomery J, Pericàs MÀ. Nickel-Catalyzed Reductive [2+2] Cycloaddition of Alkynes. J Am Chem Soc 2018; 140:17349-17355. [PMID: 30517785 PMCID: PMC6470007 DOI: 10.1021/jacs.8b09677] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The nickel-catalyzed synthesis of tetrasubstituted cyclobutenes from alkynes is reported. This transformation is uniquely promoted by the use of a primary aminophosphine, an unusual ligand in nickel catalysis. Mechanistic insights for this new transformation are provided, and postreaction modifications of the cyclobutene products to stereodefined cyclic and acyclic compounds are reported, including the synthesis of epi-truxillic acid.
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Affiliation(s)
- Santiago Cañellas
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007, Tarragona, Spain
- Universitat Rovira i Virgili, Departament de Química Analítica i Química Orgànica, Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - John Montgomery
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48019-1055, United States
| | - Miquel À. Pericàs
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007, Tarragona, Spain
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, 08028, Barcelona, Spain
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19
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Mato M, García‐Morales C, Echavarren AM. Generation of Gold(I) Carbenes by Retro‐Buchner Reaction: From Cyclopropanes to Natural Products Synthesis. ChemCatChem 2018. [DOI: 10.1002/cctc.201801201] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - Cristina García‐Morales
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
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20
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Pradhan TR, Kim HW, Park JK. Harnessing the Polarizability of Conjugated Alkynes toward [2 + 2] Cycloaddition, Alkenylation, and Ring Expansion of Indoles. Org Lett 2018; 20:5286-5290. [PMID: 30141335 DOI: 10.1021/acs.orglett.8b02230] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Reported is the utilization of electronically biased conjugated alkynes in the development of highly diastereo- and regioselective dearomative [2 + 2] cycloadditions, alkenylations, and ring expansions of electron-rich indoles. Regioselective protonations of cross- and linear-conjugated alkynes were found to be crucial for accessing various cyclobutene-fused indoline and alkenylated indole derivatives. Furthermore, the facile ring expansion of [2 + 2] keto adducts, which were successfully synthesized from ynones, provided 1 H-benzo[ b]azepine scaffolds.
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Affiliation(s)
- Tapas R Pradhan
- The Department of Chemistry and Chemistry Institute of Functional Materials , Pusan National University , Busan 46241 , Korea
| | - Hong Won Kim
- The Department of Chemistry and Chemistry Institute of Functional Materials , Pusan National University , Busan 46241 , Korea
| | - Jin Kyoon Park
- The Department of Chemistry and Chemistry Institute of Functional Materials , Pusan National University , Busan 46241 , Korea
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