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Bauer AK, Conrad J, Beifuss U. Efficient approach to 1,1'-bisindoles via copper(I)-catalyzed double domino reaction. Org Biomol Chem 2023; 21:8003-8019. [PMID: 37767762 DOI: 10.1039/d3ob01231j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
A highly efficient copper(I)-catalyzed approach for the synthesis of 1,1'-bisindoles that is based on the formation of four bonds in one step has been developed. The unprecedented three component reaction between one molecule of a 1,2-bis(2-bromoaryl)hydrazine and two molecules of a 1,3-diketone employing 10 mol% CuI as a catalyst and Cs2CO3 as a base in DMSO at 100 °C for 24 h delivers substituted 1,1'-bisindoles with yields up to 92%. The new method proceeds as a double domino condensation/Ullmann type C-C coupling. It allows an efficient and practical access to substituted 1,1'-bisindoles in one step from easily available starting materials.
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Affiliation(s)
- Ann-Kathrin Bauer
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany.
| | - Jürgen Conrad
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany.
| | - Uwe Beifuss
- Bioorganische Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße 30, D-70599 Stuttgart, Germany.
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2
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Lin W, Zhao Q, Li Y, Pan M, Yang C, Yang GH, Li X. Asymmetric synthesis of N-N axially chiral compounds via organocatalytic atroposelective N-acylation. Chem Sci 2021; 13:141-148. [PMID: 35059162 PMCID: PMC8694391 DOI: 10.1039/d1sc05360d] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/10/2021] [Indexed: 12/20/2022] Open
Abstract
Compared with the well-developed C-C and C-N axial chirality, the asymmetric synthesis of N-N axial chirality remains elusive and challenging. Herein we report the first atroposelective N-acylation reaction of quinazolinone type benzamides with cinnamic anhydrides for the direct catalytic synthesis of optically active atropisomeric quinazolinone derivatives. This reaction features mild conditions and a broad substrate scope and produces N-N axially chiral compounds with high yields and very good enantioselectivities. Besides, the synthetic utility of the protocol was proved by a large scale reaction, transformation of the product and the utilization of the product as an acylation kinetic resolution reagent. Moreover, DFT calculations provide convincing evidence for the interpretation of stereoselection.
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Affiliation(s)
- Wei Lin
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Qun Zhao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Yao Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Ming Pan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Chen Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Guo-Hui Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
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3
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Abualnaja MM, Cowell J, Jolliffe JD, Wills C, Waddell PG, Clegg W, Hall MJ. Diastereoselective rearomative etherifications and aminations of 2,3,9,9a-tetrahydro-1H-carbazoles. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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4
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Nemoto T. Synthesis of 3,4‐Fused Tricyclic Indoles Using 3‐Alkylidene Indolines as Versatile Precursors. CHEM REC 2018; 19:320-332. [DOI: 10.1002/tcr.201800043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/06/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Tetsuhiro Nemoto
- Graduate School of Pharmaceutical SciencesChiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research CenterChiba University 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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5
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Davison EK, Hume PA, Sperry J. Total Synthesis of an Isatis indigotica-Derived Alkaloid Using a Biomimetic Thio-Diels–Alder Reaction. Org Lett 2018; 20:3545-3548. [DOI: 10.1021/acs.orglett.8b01321] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Emma K. Davison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Paul A. Hume
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
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6
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Saavedra CJ, Hernández D, Boto A. Metal-Free, Site-Selective Peptide Modification by Conversion of “Customizable” Units into β-Substituted Dehydroamino Acids. Chemistry 2017; 24:599-607. [DOI: 10.1002/chem.201703758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
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7
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Henry KG, Blair LM, Sperry J, Colby Davie EA. 4,4′-Bismoschamine: biomimetic synthesis and evidence to support structural equivalency to montamine. Org Biomol Chem 2016; 14:8838-8847. [DOI: 10.1039/c6ob01685e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A biomimetic synthesis of 4,4′-bismoschamine enabled comparison of its NMR data to dimeric tryptamines, which supports structural equivalency to montamine.
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Affiliation(s)
| | - Lachlan M. Blair
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
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8
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Nakano SI, Inoue N, Hamada Y, Nemoto T. Pd-Catalyzed Cascade Cyclization by Intramolecular Heck Insertion of an Allene–Allylic Amination Sequence: Application to the Synthesis of 3,4-Fused Tricyclic Indoles. Org Lett 2015; 17:2622-5. [DOI: 10.1021/acs.orglett.5b00973] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shun-ichi Nakano
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Naoya Inoue
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Yasumasa Hamada
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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9
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Affiliation(s)
- Emily M. Boyd
- School
of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School
of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
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10
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Blair LM, Colby Davie EA, Sperry J. Total synthesis of putative montamine and a proposed structural reassignment. Org Biomol Chem 2014; 12:6878-84. [DOI: 10.1039/c4ob01304b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The spectroscopic data for synthetic montamine does not match the proposed N,N′-linked structure and closely resembles a known 4,4′-bismoschamine natural product.
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Affiliation(s)
- Lachlan M. Blair
- School of Chemical Sciences
- University of Auckland
- Auckland, New Zealand
| | | | - Jonathan Sperry
- School of Chemical Sciences
- University of Auckland
- Auckland, New Zealand
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