1
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Pedrón M, Sendra J, Ginés I, Tejero T, Vicario JL, Merino P. Computational studies of Brønsted acid-catalyzed transannular cycloadditions of cycloalkenone hydrazones. Beilstein J Org Chem 2023; 19:477-486. [PMID: 37123091 PMCID: PMC10130903 DOI: 10.3762/bjoc.19.37] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023] Open
Abstract
The contribution to the energy barrier of a series of tethers in transannular cycloadditions of cycloalkenes with hydrazones has been computationally studied by using DFT. The Houk's distortion model has been employed to evaluate the influence of the tether in the cycloaddition reaction. That model has been extended to determine the contribution of each tether and, more importantly, the effect exerted between them. In addition to the distortion induced by the tethers, the entropy effects caused by them has also been studied. The analysis of the evolution of the electron localization function along the reaction revealed the highly concerted character of the reaction.
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Affiliation(s)
- Manuel Pedrón
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Jana Sendra
- Departamento de Química Orgánica e Inorgánica, Universidad del País Vasco (UPV/EHU) P.O. Box 644, 48080 Bilbao, Spain
| | - Irene Ginés
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (SQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Jose L Vicario
- Departamento de Química Orgánica e Inorgánica, Universidad del País Vasco (UPV/EHU) P.O. Box 644, 48080 Bilbao, Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
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2
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Luis‐Barrera J, Rodriguez S, Uria U, Reyes E, Prieto L, Carrillo L, Pedrón M, Tejero T, Merino P, Vicario JL. Brønsted Acid versus Phase-Transfer Catalysis in the Enantioselective Transannular Aminohalogenation of Enesultams. Chemistry 2022; 28:e202202267. [PMID: 36111677 PMCID: PMC10053555 DOI: 10.1002/chem.202202267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Indexed: 11/12/2022]
Abstract
We have studied the enantioselective transannular aminohalogenation reaction of unsaturated medium-sized cyclic benzosulfonamides by using both chiral Brønsted acid and phase-transfer catalysis. Under optimized conditions, a variety of bicyclic adducts can be obtained with good yields and high enantioselectivities. The mechanism of the reaction was also studied by using computational tools; we observed that the reaction involves the participation of a conformer of the nine-membered cyclic substrate with planar chirality in which the stereochemical outcome is controlled by the relative reactivity of the two pseudorotational enantiomers when interacting with the chiral catalyst.
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Affiliation(s)
- Javier Luis‐Barrera
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Sandra Rodriguez
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Uxue Uria
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Efraim Reyes
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Liher Prieto
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Luisa Carrillo
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
| | - Manuel Pedrón
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI)Universidad de Zaragoza50009ZaragozaSpain
| | - Tomás Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)Universidad de Zaragoza-CSIC50009ZaragozaSpain
| | - Pedro Merino
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI)Universidad de Zaragoza50009ZaragozaSpain
| | - Jose L. Vicario
- Department of Organic and Inorganic ChemistryUniversity of the Basque Country (UPV/EHU) P.O. Box 64448080BilbaoSpain
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3
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Kang Q, Mu Y, Yuan Y, Wang Y, Jin S, Wang C, Li Y. Diastereoselective Synthesis of Bicyclo[3.3.0]octenones by Copper-Catalyzed Transannular Ring-Closing Reaction. Org Lett 2022; 24:5924-5928. [PMID: 35930708 DOI: 10.1021/acs.orglett.2c02163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel and efficient copper-catalyzed transannular ring-closing reaction of eight-membered rings has been developed that provides a straightforward way to synthesize bicyclo[3.3.0]octane derivatives in good yields. Mechanistic studies revealed that the reaction pathway might involve chlorination followed by the Kornblum reaction. Readily accessible starting materials and good functional group tolerance make this procedure attractive.
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Affiliation(s)
- Qiongwen Kang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Shuxin Jin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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4
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Capel E, Luis-Barrera J, Sorazu A, Uria U, Prieto L, Reyes E, Carrillo L, Vicario JL. Transannular Approach to 2,3-Dihydropyrrolo[1,2- b]isoquinolin-5(1 H)-ones through Brønsted Acid-Catalyzed Amidohalogenation. J Org Chem 2022; 87:10062-10072. [PMID: 35880953 PMCID: PMC9361296 DOI: 10.1021/acs.joc.2c01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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A transannular approach has been developed for the construction
of pyrrolo[1,2-b]isoquinolinones starting from benzo-fused
nine-membered enelactams. This process takes place in the presence
of a halogenating agent and under Brønsted acid catalysis and
proceeds via a transannular amidohalogenation, followed by elimination.
The reaction has been found to be wide in scope, enabling the formation
of a variety of tricyclic products in good overall yield, regardless
of the substitution pattern in the initial lactam substrate. The reaction
has also been applied to the total synthesis of a reported topoisomerase
I inhibitor and to the formal synthesis of rosettacin. Further extension
of this methodology allows the preparation of 10-iodopyrrolo[1,2-b]isoquinolinones by using an excess of halogenating agent
and these compounds can be further manipulated through standard Suzuki
coupling chemistry into a variety of 10-aryl-substituted pyrrolo[1,2-b]isoquinolinones.
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Affiliation(s)
- Estefanía Capel
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Javier Luis-Barrera
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Ana Sorazu
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Uxue Uria
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Efraím Reyes
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Luisa Carrillo
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Jose L Vicario
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
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5
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Sendra J, Reyes E, Prieto L, Fernández E, Vicario JL. Transannular Enantioselective (3 + 2) Cycloaddition of Cycloalkenone Hydrazones under Brønsted Acid Catalysis. Org Lett 2021; 23:8738-8743. [PMID: 34726408 PMCID: PMC8609578 DOI: 10.1021/acs.orglett.1c03190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydrazones derived from cycloalkenones undergo an enantioselective transannular formal (3 + 2) cycloaddition catalyzed by a chiral phosphoric acid. The reaction provides high yields and excellent stereocontrol in the formation of complex adducts with one or two α-tertiary amine moieties at the ring fusion, and these can be converted into very versatile stereodefined decalin- or octahydro-1H-indene-derived 1,3-diamines through simple reductive N-N cleavage.
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Affiliation(s)
- Jana Sendra
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O. Box 644, 48080 Bilbao, Spain.,Departament Química Física i Inorgànica, Universidad Rovira i Virgilli, C/Marcel·lí Domingo s/n, 50009 Tarragona, Spain
| | - Efraim Reyes
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O. Box 644, 48080 Bilbao, Spain
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O. Box 644, 48080 Bilbao, Spain
| | - Elena Fernández
- Departament Química Física i Inorgànica, Universidad Rovira i Virgilli, C/Marcel·lí Domingo s/n, 50009 Tarragona, Spain
| | - Jose L Vicario
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU). P.O. Box 644, 48080 Bilbao, Spain
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6
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Laina‐Martín V, Fernández‐Salas JA, Alemán J. Organocatalytic Strategies for the Development of the Enantioselective Inverse-electron-demand Hetero-Diels-Alder Reaction. Chemistry 2021; 27:12509-12520. [PMID: 34132427 PMCID: PMC8456916 DOI: 10.1002/chem.202101696] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Indexed: 12/20/2022]
Abstract
Cycloaddition reactions, in particular Diels-Alder reactions, have attracted a lot of attention from organic chemists since they represent one of the most powerful methodologies for the construction of carbon-carbon bonds. In particular, inverse-electron-demand hetero-Diels-Alder reactions have been an important breakthrough for the synthesis of heterocyclic compounds. Among all their variants, the organocatalytic enantioselective version has been widely explored since the asymmetric construction of diversely functionalized scaffolds under reaction conditions encompassed within the green chemistry field is of great interest. In this review, a profound revision on the latest advances on the organocatalytic asymmetric inverse-electron demand hetero-Diels-Alder reaction is shown.
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Affiliation(s)
- Víctor Laina‐Martín
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
| | - Jose A. Fernández‐Salas
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid28049-MadridSpain
| | - José Alemán
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid28049-MadridSpain
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7
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Velasco-Juárez E, Arpa EM. A novel partitioning scheme for the application of the distortion/interaction - activation strain model to intramolecular reactions. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02803-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThe distortion/interaction or activation strain model, developed by Houk and Bickelhaupt, relates chemical reactivity to the reagents deformations and reciprocal electronic influences. However, in its original formulation, it struggles to elucidate the mechanistic insights of intramolecular reactions, those unimolecular processes in which two parts of a molecule, the reaction centers, linked by a connector, are brought together to yield a different chemical species. Here we present a modification of the distortion/interaction procedure for its application on intramolecular reactions. This new procedure allows the calculation of the influence exerted by the connector over the reaction pathway in an indirect way, from the distortions of the two reaction centers and their interaction energy. This procedure does not include additional, undesired interactions and offers the possibility of calculating very large connectors in a computationally inexpensive way. We applied this methodology in the normal electron-demand Diels–Alder reaction of 1,3,8-nonatriene derivatives, with different functionalizations and connector lengths. In-depth analysis of the IRC showed that the reaction pathway can be subdivided in three main regions, what we called the oncoming, conversion and relaxation phases, each of them characterized by different evolutions of the distortion and interaction energies, and with clear geometry changes. We suggest that this new formulation can provide additional information for intramolecular reactions, especially to those processes for which the connector is said to play a crucial role in the observed reaction rates.
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8
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Lee KR, Ahn S, Lee SG. Synergistic Pd(0)/Rh(II) Dual Catalytic [6 + 3] Dipolar Cycloaddition for the Synthesis of Monocyclic Nine-Membered N,O-Heterocycles and Their Alder-ene Rearrangement to Fused Bicyclic Compounds. Org Lett 2021; 23:3735-3740. [PMID: 33913334 DOI: 10.1021/acs.orglett.1c01135] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic construction of a monocyclic medium-sized N,O-heterocyclic ring represents a formidable challenge in organic synthesis. Herein we report the synergistic palladium(0)/rhodium(II) dual catalytic cycloaddition of vinylpropylene carbonates with N-sulfonyl-1,2,3-triazoles to afford monocyclic nine-membered N,O-heterocycles. The catalytically generated 1,6-dipole-equivalent zwitterionic π-allyl palladium(II) complex and the 1,3-dipole-equivalent α-imino rhodium(II) carbenoid intermediate react with each other in a formal [6 + 3] dipolar cycloaddition to furnish nine-membered oxazonines, which can be transformed into cis-fused [4.3.0] bicyclic compounds via a transannular Alder-ene rearrangement. The tandem one-pot cycloaddition/Alder-ene rearrangement sequence is also possible.
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Affiliation(s)
- Kyu Ree Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 03760 Seoul, Korea
| | - Subin Ahn
- Department of Chemistry and Nanoscience, Ewha Womans University, 03760 Seoul, Korea
| | - Sang-Gi Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, 03760 Seoul, Korea
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9
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Hu YJ, Li LX, Han JC, Min L, Li CC. Recent Advances in the Total Synthesis of Natural Products Containing Eight-Membered Carbocycles (2009-2019). Chem Rev 2020; 120:5910-5953. [PMID: 32343125 DOI: 10.1021/acs.chemrev.0c00045] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Natural products containing eight-membered carbocycles constitute a class of structurally intriguing and biologically important molecules such as the famous diterpenes taxol and vinigrol. Such natural products are being increasingly investigated because of their fascinating architectural features and potent medicinal properties. However, synthesis of natural products with cyclooctane moieties has proved to be highly challenging. This review highlights the recently completed total syntheses of natural products with eight-membered carbocycles with a focus on strategic considerations. A collection of 27 representative studies from the literature covering the decade from 2009 to 2019 is described in chronological order with relevant studies grouped together, including syntheses of the same natural product by different research groups using different strategies. Finally, a summary and outlook including a discussion of the major features of each strategy used in the syntheses are presented. This review illustrates the diversity and creativity in the elegant synthetic designs of eight-membered carbocycles. We hope this review will provide timely illumination and beneficial guidance for future synthetic efforts for organic chemists who are interested in this area.
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Affiliation(s)
- Ya-Jian Hu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Li-Xuan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Jing-Chun Han
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
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10
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Sendra J, Manzano R, Reyes E, Vicario JL, Fernández E. Catalytic Stereoselective Borylative Transannular Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jana Sendra
- Department Química Física i InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n Spain
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Ruben Manzano
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Efraim Reyes
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Jose L. Vicario
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Elena Fernández
- Department Química Física i InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n Spain
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11
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Sendra J, Manzano R, Reyes E, Vicario JL, Fernández E. Catalytic Stereoselective Borylative Transannular Reactions. Angew Chem Int Ed Engl 2020; 59:2100-2104. [PMID: 31730740 DOI: 10.1002/anie.201913438] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Indexed: 11/09/2022]
Abstract
Medium-sized carbocycles containing an α,β-unsaturated ketone moiety as Michael acceptor site and a ketone moiety as internal electrophilic site are ideal substrates to conduct Cu(I)-catalyzed conjugated borylation followed by electrophilic intramolecular trapping that results into a pioneer transannular borylative ring closing reaction. The relative configuration of three adjacent stereocenters is controlled, giving access to a single diastereoisomer for a wide range of substrates tested. Moreover, when a chiral ligand is incorporated, the reaction provides enantioenriched polycyclic products with up to 99 % ee.
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Affiliation(s)
- Jana Sendra
- Department Química Física i Inorgànica, University Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, Spain.,Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Ruben Manzano
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Efraim Reyes
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Jose L Vicario
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080, Bilbao, Spain
| | - Elena Fernández
- Department Química Física i Inorgànica, University Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, Spain
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12
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Mato R, Manzano R, Reyes E, Carrillo L, Uria U, Vicario JL. Catalytic Enantioselective Transannular Morita–Baylis–Hillman Reaction. J Am Chem Soc 2019; 141:9495-9499. [DOI: 10.1021/jacs.9b03679] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Raquel Mato
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Rubén Manzano
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Efraim Reyes
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Luisa Carrillo
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Uxue Uria
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Jose L. Vicario
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
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13
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He C, Xuan J, Rao P, Xie P, Hong X, Lin X, Ding H. Total Syntheses of (+)‐Sarcophytin, (+)‐Chatancin, (−)‐3‐Oxochatancin, and (−)‐Pavidolide B: A Divergent Approach. Angew Chem Int Ed Engl 2019; 58:5100-5104. [DOI: 10.1002/anie.201900782] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/20/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Chuan He
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Jun Xuan
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Peirong Rao
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Pei‐Pei Xie
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xin Hong
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xufeng Lin
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Hanfeng Ding
- Department of ChemistryZhejiang University Hangzhou 310058 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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14
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Total Syntheses of (+)‐Sarcophytin, (+)‐Chatancin, (−)‐3‐Oxochatancin, and (−)‐Pavidolide B: A Divergent Approach. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900782] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Xu J, Lin B, Jiang X, Jia Z, Wu J, Dai WM. Intramolecular Diels–Alder Cycloaddition Approach toward the cis-Fused Δ5,6-Hexahydroisoindol-1-one Core of Cytochalasins. Org Lett 2019; 21:830-834. [DOI: 10.1021/acs.orglett.8b04129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jingjing Xu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- Department of Chemistry, Hangzhou Medical College, Hangzhou 310053, P. R. China
| | - Benguo Lin
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiuqing Jiang
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zejun Jia
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jinlong Wu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Wei-Min Dai
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- Laboratory of Advanced Catalysis and Synthesis, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, P. R. China
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16
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Gössinger E. Chemistry of the Secondary Metabolites of Termites. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2019; 109:1-384. [PMID: 31637529 DOI: 10.1007/978-3-030-12858-6_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Isolation, structure determination, synthesis, and biochemistry of the low-molecular-weight compounds of the secretion of exocrine glands of termites are described, with an emphasis on pheromones and defensive compounds.
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Affiliation(s)
- Edda Gössinger
- Institute of Chemistry, University of Vienna, Vienna, Austria.
- , Mistelbach, Austria.
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17
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Zeng Z, Jin H, Rudolph M, Rominger F, Hashmi ASK. Gold(III)-Catalyzed Site-Selective and Divergent Synthesis of 2-Aminopyrroles and Quinoline-Based Polyazaheterocycles. Angew Chem Int Ed Engl 2018; 57:16549-16553. [DOI: 10.1002/anie.201810369] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Zhongyi Zeng
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Hongming Jin
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department; Faculty of Science; King Abdulaziz University (KAU); 21589 Jeddah Saudi Arabia
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18
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Gold(III)-Catalyzed Site-Selective and Divergent Synthesis of 2-Aminopyrroles and Quinoline-Based Polyazaheterocycles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810369] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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19
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Zhao M, Cheng J, Guo B, Duan J, Che CT. Momilactone and Related Diterpenoids as Potential Agricultural Chemicals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7859-7872. [PMID: 29996047 PMCID: PMC6592423 DOI: 10.1021/acs.jafc.8b02602] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Momilactones are allelochemicals in rice and moss defense. Momilactone-like compounds are therefore considered important secondary metabolites for plant defense. They may serve as promising lead compounds for crop-friendly herbicides as well as antifungal and antibacterial agents. Many of these substances possess potent cytotoxicity property against cancer cell lines as well. The present paper is the first review on these versatile molecules, focusing on the structure, biological activity, chemical synthesis, and biosynthesis of the naturally occurring momilactone-like molecules reported from 1973 to 2017.
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Affiliation(s)
- Ming Zhao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Corresponding Author. Tel: +86-25-85811916. Fax: +86-25-85811916
| | - Jianjun Cheng
- iHuman Institute, ShanghaiTech University, 393 Middle Huaxia Road, Pudong District, Shanghai 201210, China
| | - Brian Guo
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chun-Tao Che
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
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20
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Maiga-Wandiam B, Corbu A, Massiot G, Sautel F, Yu P, Lin BWY, Houk KN, Cossy J. Intramolecular Diels–Alder Approaches to the Decalin Core of Verongidolide: The Origin of the exo-Selectivity, a DFT Analysis. J Org Chem 2018; 83:5975-5985. [DOI: 10.1021/acs.joc.8b00566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Baba Maiga-Wandiam
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris, PSL Research University, CNRS, 10 rue Vauquelin, 75231 - Paris Cedex 05, France
| | - Andrei Corbu
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris, PSL Research University, CNRS, 10 rue Vauquelin, 75231 - Paris Cedex 05, France
| | - Georges Massiot
- Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire de Reims, CNRS, UFR des Sciences Exactes et Naturelles, Campus Sciences, Moulin de la Housse, 51687 - Reims Cedex 2, France
| | - François Sautel
- CNRS/Pierre Fabre USR 3388, Centre de Recherche et Développement Pierre Fabre, 3 avenue Hubert Curien, 31035 - Toulouse Cedex 01, France
| | - Peiyuan Yu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90065, United States
| | - Bernice Wan-Yi Lin
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90065, United States
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90065, United States
| | - Janine Cossy
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris, PSL Research University, CNRS, 10 rue Vauquelin, 75231 - Paris Cedex 05, France
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21
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Chan D, Chen Y, Low KH, Chiu P. Transannular [4+3] Cycloadditions of Macrocyclic Epoxy Ketones. Chemistry 2018; 24:2375-2378. [DOI: 10.1002/chem.201800019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Diana Chan
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Yu Chen
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Kam-Hung Low
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Pauline Chiu
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
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22
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Karabiyikoglu S, Boon BA, Merlic CA. Cycloaddition Reactions of Cobalt-Complexed Macrocyclic Alkynes: The Transannular Pauson-Khand Reaction. J Org Chem 2017; 82:7732-7744. [PMID: 28719209 DOI: 10.1021/acs.joc.7b01369] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Pauson-Khand reaction is a powerful tool for the synthesis of cyclopentenones through the efficient [2 + 2 + 1] cycloaddition of dicobalt alkyne complexes with alkenes. While intermolecular and intramolecular variants are widely known, transannular versions of this reaction are unknown and the basis of this study. Macrocyclic enyne and dienyne complexes were readily synthesized by palladium(II)-catalyzed oxidative macrocyclizations of bis(vinyl boronate esters) or ring-closing metathesis reactions followed by complexation with dicobalt octacarbonyl. Several reaction modalities of these macrocyclic complexes were uncovered. In addition to the first successful transannular Pauson-Khand reactions, other intermolecular and transannular cycloaddition reactions included intermolecular Pauson-Khand reactions, transannular [4 + 2] cycloaddition reactions, intermolecular [2 + 2 + 2] cycloaddition reactions, and intermolecular [2 + 2 + 1 + 1] cycloaddition reactions. The structural and reaction requirements for each process are presented.
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Affiliation(s)
- Sedef Karabiyikoglu
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
| | - Byron A Boon
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
| | - Craig A Merlic
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095-1569, United States
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23
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Hall AJ, Roche SP, West LM. Synthesis of Briarane Diterpenoids: Biomimetic Transannular Oxa-6π electrocyclization Induced by a UVA/UVC Photoswitch. Org Lett 2017; 19:576-579. [PMID: 28080074 DOI: 10.1021/acs.orglett.6b03689] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A biomimetic synthesis of briareolate ester B (3) from briareolate ester L (1) via the intermediate briareolate ester G (2) has been achieved through a unique transannular oxa-6π electrocyclization induced by UVA light. UVC irradiation of 3 triggered a rapid retro-6π electrocyclization to establish an unprecedented photochromic switch. In the ground state, reaction of 1 led to the formation of a polycyclic γ-spiroketal γ-lactone 5, architecturally related to the ether-bridged cembranoids of the cladiellin class.
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Affiliation(s)
- Andrew J Hall
- Department of Chemistry and Biochemistry, Florida Atlantic University , Boca Raton, Florida 33431, United States
| | - Stéphane P Roche
- Department of Chemistry and Biochemistry, Florida Atlantic University , Boca Raton, Florida 33431, United States
| | - Lyndon M West
- Department of Chemistry and Biochemistry, Florida Atlantic University , Boca Raton, Florida 33431, United States
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24
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Yu P, Yang Z, Liang Y, Hong X, Li Y, Houk KN. Distortion-Controlled Reactivity and Molecular Dynamics of Dehydro-Diels–Alder Reactions. J Am Chem Soc 2016; 138:8247-52. [DOI: 10.1021/jacs.6b04113] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Peiyuan Yu
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Zhongyue Yang
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Yong Liang
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Xin Hong
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Yanwei Li
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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25
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Dale EJ, Ferris DP, Vermeulen NA, Henkelis JJ, Popovs I, Juríček M, Barnes JC, Schneebeli ST, Stoddart JF. Cooperative Reactivity in an Extended-Viologen-Based Cyclophane. J Am Chem Soc 2016; 138:3667-70. [PMID: 26909445 DOI: 10.1021/jacs.6b01368] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A tetracationic pyridinium-based cyclophane with a box-like geometry, incorporating two juxtaposed alkyne functions, has been synthesized. The triple bonds are reactive through cycloadditions toward dienes and azides, promoted by the electron-withdrawing nature of the pyridinium rings, as well as by the strain inherent in the cyclophane. The cycloadditions proceeded in high yields, with the cyclophane reacting faster than its acyclic analogue. While the cyclophane contains two reactive triple bonds, there is no evidence for a stable monofunctional intermediate-only starting material and the difunctional product have been detected by (1)H NMR spectroscopy. Molecular modeling of the energy landscape reveals a lower barrier for the kinetically favored second cycloaddition compared with the first one. This situation results in tandem cascading reactions within rigid cyclophanes, where reactions at a first triple bond induce increased reactivity at a distal second alkyne.
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Affiliation(s)
- Edward J Dale
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Daniel P Ferris
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Nicolaas A Vermeulen
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - James J Henkelis
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Ilja Popovs
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Michal Juríček
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Department of Chemistry, University of Basel , CH-4056 Basel, Switzerland
| | - Jonathan C Barnes
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States.,Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Severin T Schneebeli
- Department of Chemistry, The University of Vermont , Burlington, Vermont 05405, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
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26
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Ma K, Liao D, Yang S, Li X, Lei X. Studies towards the synthesis of the functionalized C3–C14 decalin framework of alchivemycin A. Org Chem Front 2016. [DOI: 10.1039/c5qo00343a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report our synthetic endeavors towards the synthesis of the C3–C14 fragment of the complex natural product alchivemycin A.
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Affiliation(s)
- Kaiqing Ma
- Modern Research Center for Traditional Chinese Medicine of Shanxi University
- Taiyuan 030006
- China
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
| | - Daohong Liao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
| | - Shaoqiang Yang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
| | - Xiaofei Li
- National Institute of Biological Sciences (NIBS)
- Beijing 102206
- China
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- Department of Chemical Biology
- College of Chemistry and Molecular Engineering
- Synthetic and Functional Biomolecules Center
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27
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Ahlers A, de Haro T, Gabor B, Fürstner A. Concise Total Synthesis of Enigmazole A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Teresa de Haro
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Barbara Gabor
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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28
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Ahlers A, de Haro T, Gabor B, Fürstner A. Concise Total Synthesis of Enigmazole A. Angew Chem Int Ed Engl 2015; 55:1406-11. [DOI: 10.1002/anie.201510026] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Teresa de Haro
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Barbara Gabor
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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29
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He CQ, Chen TQ, Patel A, Karabiyikoglu S, Merlic CA, Houk KN. Distortion, Tether, and Entropy Effects on Transannular Diels–Alder Cycloaddition Reactions of 10–18-Membered Rings. J Org Chem 2015; 80:11039-47. [DOI: 10.1021/acs.joc.5b02288] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Cyndi Qixin He
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
| | - Tiffany Q. Chen
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
| | - Ashay Patel
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
| | - Sedef Karabiyikoglu
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
| | - Craig A. Merlic
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry and ‡Department of Chemical and Biochemical
Engineering, University of California, Los Angeles, California 90095, United States
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30
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Karabiyikoglu S, Merlic CA. Transannular [4 + 2] Cycloaddition Reactions of Cobalt-Complexed Macrocyclic Dienynes. Org Lett 2015; 17:4086-9. [DOI: 10.1021/acs.orglett.5b01984] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sedef Karabiyikoglu
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Craig A. Merlic
- Department
of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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31
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Nicolaou KC, Shah AA, Korman H, Khan T, Shi L, Worawalai W, Theodorakis EA. Total Synthesis and Structural Revision of Antibiotic CJ-16,264. Angew Chem Int Ed Engl 2015; 54:9203-8. [PMID: 26096055 DOI: 10.1002/anie.201504337] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Indexed: 11/08/2022]
Abstract
The total synthesis and structural revision of antibiotic CJ-16,264 is described. Starting with citronellal, the quest for the target molecule featured a novel bis-transannular Diels-Alder reaction that casted stereoselectively the decalin system and included the synthesis of six isomers before demystification of its true structure.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6100 Main Street, Houston, TX 77005 (USA).
| | - Akshay A Shah
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6100 Main Street, Houston, TX 77005 (USA)
| | - Henry Korman
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 (USA)
| | - Tabrez Khan
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Lei Shi
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6100 Main Street, Houston, TX 77005 (USA)
| | - Wisuttaya Worawalai
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 (USA)
| | - Emmanuel A Theodorakis
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 (USA)
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32
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Nicolaou KC, Shah AA, Korman H, Khan T, Shi L, Worawalai W, Theodorakis EA. Total Synthesis and Structural Revision of Antibiotic CJ-16,264. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504337] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Juliá-Hernández F, Ziadi A, Nishimura A, Martin R. Nickel-Catalyzed Chemo-, Regio- and Diastereoselective Bond Formation through Proximal CC Cleavage of Benzocyclobutenones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503461] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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34
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Juliá-Hernández F, Ziadi A, Nishimura A, Martin R. Nickel-Catalyzed Chemo-, Regio- and Diastereoselective Bond Formation through Proximal C-C Cleavage of Benzocyclobutenones. Angew Chem Int Ed Engl 2015; 54:9537-41. [PMID: 26096718 DOI: 10.1002/anie.201503461] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/13/2015] [Indexed: 12/31/2022]
Abstract
The first catalytic intermolecular proximal C1-C2 cleavage of benzocyclobutenones (BCB) without prior carbonyl activation or employing noble metals has been developed. This protocol operates at room temperature and is characterized by an exquisite chemo-, regio- and diastereoselectivity profile, constituting a unique platform for preparing an array of elusive carbocyclic skeletons.
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Affiliation(s)
| | - Asraa Ziadi
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Akira Nishimura
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain)
| | - Ruben Martin
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona (Spain). .,Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluïs Companys, 23, 08010 Barcelona (Spain).
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35
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Kotha S, Chavan AS, Goyal D. Diversity-Oriented Approaches to Polycyclics and Bioinspired Molecules via the Diels-Alder Strategy: Green Chemistry, Synthetic Economy, and Beyond. ACS COMBINATORIAL SCIENCE 2015; 17:253-302. [PMID: 25875156 DOI: 10.1021/co500146u] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We describe diverse approaches to various dienes and their utilization in the Diels-Alder reaction to produce a variety of polycycles. The dienes covered here are prepared by simple alkylation reaction or via the Claisen rearrangement or by enyne metathesis of alkyne or enyne building blocks. Here, we have also included the Diels-Alder chemistry of dendralenes, a higher analog of cross-conjugated dienes. The present article is inclusive of o-xylylene derivatives that are generated in situ starting with benzosultine or benzosulfone derivatives. The Diels-Alder reaction of these dienes with various dienophiles gave diverse polycyclic systems and biologically important targets.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076 India
| | - Arjun S. Chavan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076 India
| | - Deepti Goyal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076 India
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37
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Zhao YM, Maimone TJ. Short, enantioselective total synthesis of chatancin. Angew Chem Int Ed Engl 2015; 54:1223-6. [PMID: 25470723 PMCID: PMC4300267 DOI: 10.1002/anie.201410443] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 11/06/2022]
Abstract
An enantioselective total synthesis of the polycyclic diterpene (+)-chatancin, a potent PAF antagonist, is reported. Proceeding in seven steps from dihydrofarnesal, this synthetic route was designed to circumvent macrocyclization-based strategies to complex, cyclized cembranoids. The described synthesis requires only six chromatographic purifications, is high yielding, and avoids protecting-group manipulations. An X-ray crystal structure of this fragile marine natural product was obtained.
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Affiliation(s)
- Yu-Ming Zhao
- Department of Chemistry, University of California, Berkeley, 826 Latimer Hall, Berkeley, CA 94720 (USA)
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38
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Zhang YY, Hao J, Shi M. One pot cascade synthesis of fused heterocycles from furan-tethered terminal alkynes and aldehydes in the presence of amines and CuBr. Org Chem Front 2015. [DOI: 10.1039/c5qo00033e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel one-pot protocol for the construction of complex heterocycles through furan tethered terminal alkynes, aldehydes, amines and CuBr upon heating has been developed, giving the cycloadducts in moderate to high yields along with moderate to good regioselectivities.
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Affiliation(s)
- Yan-Yan Zhang
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Jian Hao
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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39
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40
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41
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Tadano KI. Our recent progress on the intramolecular Diels-Alder reaction approach in natural products synthesis: synthetic studies of the octahydronaphthalene substructure of versipelostatins and the A/B/C-tricyclic substructure of GKK1032s. CHEM REC 2014; 14:623-40. [PMID: 25049071 DOI: 10.1002/tcr.201402008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 11/06/2022]
Abstract
During this decade, the enantio- and stereoselective synthesis of natural products has been actively explored in the author's laboratory. In this account, the author outlines practical syntheses of the polycyclic substructures of two novel structurally formidable antibiotics, namely, the trans-fused octahydronaphthalene moiety of versipelostatins and the A/B/C-tricyclic decahydrofluorene moiety of GKK1032s. Both syntheses have been achieved with remarkable regio- and stereoselectivity via intramolecular Diels-Alder reactions using well-designed enantiomeric substrates.
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Affiliation(s)
- Kin-Ichi Tadano
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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42
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Cooperative activation of cyclobutanones and olefins leads to bridged ring systems by a catalytic [4 + 2] coupling. Nat Chem 2014; 6:739-44. [PMID: 25054946 PMCID: PMC4150356 DOI: 10.1038/nchem.1989] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 05/28/2014] [Indexed: 01/31/2023]
Abstract
Bridged-ring systems are widely found in natural products and successful syntheses of them frequently feature intramolecular Diels-Alder (IMDA) reactions. These reactions are subclassified as either type I or type II IMDAs depending on how the diene motif is tethered to the rest of the substrate - type I are tethered at the 1-position of the diene and type II at the 2-position. While the type I IMDA has been used to great success, the molecular scaffolds accessible by type II IMDAs are limited by the strain inherent in the formation of a sp2-carbon at a bridgehead position. Here, we describe a complementary approach that provides access to these structures through the C−C activation of cyclobutanones and their coupling with olefins. Various alkenes have been coupled with cyclobutanones to provide a range of bridged skeletons. The ketone group of the products serves as a convenient handle for downstream functionalization.
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43
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Gebauer K, Fürstner A. Total Synthesis of the Biphenyl Alkaloid (−)‐Lythranidine. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402550] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Konrad Gebauer
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
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44
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Gebauer K, Fürstner A. Total synthesis of the biphenyl alkaloid (-)-lythranidine. Angew Chem Int Ed Engl 2014; 53:6393-6. [PMID: 24821137 DOI: 10.1002/anie.201402550] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Indexed: 12/23/2022]
Abstract
A sequence comprising a ring-closing alkyne metathesis of a propargyl alcohol derivative, followed by a ruthenium-catalyzed redox isomerization of the derived cycloalkyne and a transannular aza-Michael addition allowed the formation of the distinguishing piperidine-metacyclophane framework of the Lythraceum alkaloid lythanidine in a few high-yielding steps. This application attests to the excellent functional-group tolerance of a molybdenum alkylidyne complex endowed with triphenylsilanolate ligands, which enabled the macrocyclization even in the presence of protic functionalities, and thus illustrates the power of contemporary catalytic acetylene chemistry for target-oriented synthesis.
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Affiliation(s)
- Konrad Gebauer
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
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45
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Matsuo JI. 1,4-Zwitterionic intermediates formed by cleavage of a cyclobutane ring and their cycloaddition reactions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.053] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Stereoselective construction of the ABC-ring system of fusidane triterpenes via intermolecular/transannular Michael reaction cascade. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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47
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Nawrat CC, Moody CJ. Quinones as Dienophiles in the Diels-Alder Reaction: History and Applications in Total Synthesis. Angew Chem Int Ed Engl 2014; 53:2056-77. [DOI: 10.1002/anie.201305908] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Indexed: 01/24/2023]
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48
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Nawrat CC, Moody CJ. Chinone als Dienophile in der Diels-Alder-Reaktion - historische Entwicklung und Anwendungen in der Totalsynthese. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201305908] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Campbell EL, Skepper CK, Sankar K, Duncan KK, Boger DL. Transannular Diels-Alder/1,3-dipolar cycloaddition cascade of 1,3,4-oxadiazoles: total synthesis of a unique set of vinblastine analogues. Org Lett 2013; 15:5306-9. [PMID: 24087969 DOI: 10.1021/ol402549n] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A powerful tandem [4 + 2]/[3 + 2] cycloaddition cascade of 1,3,4-oxadiazoles initiated by a transannular [4 + 2] cycloaddition is detailed. An impressive four rings, four carbon-carbon bonds, and six stereocenters are set on each site of the newly formed central six-membered ring in a cascade thermal reaction that proceeds at temperatures as low as 80 °C. The resulting cycloadducts provide the basis for the synthesis of unique analogues of vinblastine containing metabolically benign deep-seated cyclic modifications at the C3/C4 centers of the vindoline-derived subunit of the natural product.
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Affiliation(s)
- Erica L Campbell
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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50
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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