1
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Chen K, Huang D, Sun X. Strategy Analysis of Ynones’ Radical Reactions. MINI-REV ORG CHEM 2022. [DOI: 10.2174/1570193x18666210810154051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
This review highlights the multifaceted synthetic applications of ynones in radical reactions.
Substantial progress has been made over the last decade (2010-2020) in the utilization of
ynones. Herein, the chemistry of ynones is divided into three sections based on the classes of critical
mechanistic insights: (1) radical addition and intramolecular cyclization; (2) radical addition
and intermolecular annulation; (3) radical addition and coupling. We hope that this review will
promote future research in this area.
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Affiliation(s)
- Kaijun Chen
- Department of Chemistry, Lishui University, Lishui City 323000, Zhejiang Province, P.R. China
| | - Dayun Huang
- Department of Chemistry, Lishui University, Lishui City 323000, Zhejiang Province, P.R. China
| | - Xiangyu Sun
- Torch High Technology Industry Development Center, Ministry of Science & Technology, Xicheng District, Beijing, P.R. China
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2
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Elumalai V, Hansen JH. Synthesis of 5,7-diarylindoles via Suzuki-Miyaura coupling in water. Org Biomol Chem 2021; 19:10343-10347. [PMID: 34812462 DOI: 10.1039/d1ob02058g] [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
The synthesis of novel 5,7-diaryl and diheteroaryl indoles has been explored via efficient double Suzuki-Miyaura coupling. The method notably employs a low catalyst loading of Pd(PPh3)4 (1.5 mol%/coupling) and water as the reaction solvent to obtain 5,7-diarylated indoles without using N-protecting groups in up to 91% yield. The approach is also suitable for N-protected and 3-substituted indoles and constitutes an important green and convenient arylation strategy for the benzenoid ring of indoles. The synthesized diarylindoles are fluorescent.
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Affiliation(s)
- Vijayaragavan Elumalai
- Chemical Synthesis and Analysis Division, Department of Chemistry, UiT The Arctic University of Norway, Hansine Hansens veg 54, 9037 Tromsø, Norway.
| | - Jørn H Hansen
- Chemical Synthesis and Analysis Division, Department of Chemistry, UiT The Arctic University of Norway, Hansine Hansens veg 54, 9037 Tromsø, Norway.
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3
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Heravi MM, Amiri Z, Kafshdarzadeh K, Zadsirjan V. Synthesis of indole derivatives as prevalent moieties present in selected alkaloids. RSC Adv 2021; 11:33540-33612. [PMID: 35497516 PMCID: PMC9042329 DOI: 10.1039/d1ra05972f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/10/2021] [Indexed: 02/02/2023] Open
Abstract
Indoles are a significant heterocyclic system in natural products and drugs. They are important types of molecules and natural products and play a main role in cell biology. The application of indole derivatives as biologically active compounds for the treatment of cancer cells, microbes, and different types of disorders in the human body has attracted increasing attention in recent years. Indoles, both natural and synthetic, show various biologically vital properties. Owing to the importance of this significant ring system, the investigation of novel methods of synthesis have attracted the attention of the chemical community. In this review, we aim to highlight the construction of indoles as a moiety in selected alkaloids.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Zahra Amiri
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Kosar Kafshdarzadeh
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
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4
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Greiner LC, Matsuoka J, Inuki S, Ohno H. Azido-Alkynes in Gold(I)-Catalyzed Indole Syntheses. CHEM REC 2021; 21:3897-3910. [PMID: 34498385 DOI: 10.1002/tcr.202100202] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/26/2021] [Indexed: 12/20/2022]
Abstract
The exploitation of nitrogen-functionalized reactive intermediates plays an important role in the synthesis of biologically relevant scaffolds in the field of pharmaceutical sciences. Those based on gold carbenes carry a strong potential for the design of highly efficient cascade processes toward the synthesis of compounds containing a fused indole core structure. This personal account gives a detailed explanation of our contribution to this sector, and embraces the reaction development of efficient gold-catalyzed cascade processes based on diversely functionalized azido-alkynes. Challenging cyclizations and their subsequent application in the synthesis of pharmaceutically relevant scaffolds and natural products conducted in an intra- or intermolecular fashion are key features of our research.
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Affiliation(s)
- Luca C Greiner
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan
| | - Junpei Matsuoka
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan.,Current address: Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kodo, Kyotanabe, 610-0395, Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan
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5
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Affiliation(s)
- Junpei Matsuoka
- Graduate School of Pharmaceutical Sciences, Kyoto University
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6
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Matsuoka J, Inuki S, Matsuda Y, Miyamoto Y, Otani M, Oka M, Oishi S, Ohno H. Total Synthesis of Dictyodendrins A–F by the Gold‐Catalyzed Cascade Cyclization of Conjugated Diyne with Pyrrole. Chemistry 2020; 26:11150-11157. [DOI: 10.1002/chem.202001950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 04/30/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Junpei Matsuoka
- Graduate School of Pharmaceutical SciencesKyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical SciencesKyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Yuka Matsuda
- Graduate School of Pharmaceutical SciencesKyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Yoichi Miyamoto
- National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN) 7-6-8 Saito-Asagi Ibaraki, Osaka 567-0085 Japan
| | - Mayumi Otani
- National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN) 7-6-8 Saito-Asagi Ibaraki, Osaka 567-0085 Japan
| | - Masahiro Oka
- National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN) 7-6-8 Saito-Asagi Ibaraki, Osaka 567-0085 Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical SciencesKyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical SciencesKyoto University Sakyo-ku Kyoto 606-8501 Japan
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7
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Wang ZY, Wang KK, Chen R, Liu H, Chen K. Ynones in Reflex-Michael Addition, CuAAC, and Cycloaddition, as Well as their Use as Nucleophilic Enols, Electrophilic Ketones, and Allenic Precursors. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901921] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Kai-Kai Wang
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Rongxiang Chen
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Huan Liu
- College of Chemistry and Chemical Engineering; Xinxiang University; 453000 Xinxiang Henan P. R. of China
| | - Kaijun Chen
- Department of Chemistry; Lishui University; No. 1, Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
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8
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Sasaki I, Yamasaki N, Kasai Y, Imagawa H, Yamamoto H. A synthetic protocol for (−)-ketorolac; development of asymmetric gold(I)-catalyzed cyclization of allyl alcohol with pyrrole ring core. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Li Y, Yu J, Bi Y, Yan G, Huang D. Tandem Reactions of Ynones:viaConjugate Addition of Nitrogen‐, Carbon‐, Oxygen‐, Boron‐, Silicon‐, Phosphorus‐, and Sulfur‐Containing Nucleophiles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900611] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yang Li
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Jian Yu
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Yicheng Bi
- Department of ChemistryQingdao University of Science & Technology Qingdao Shandong People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1 Xueyuan Road Lishui City 323000 Zhejiang Province People's Republic of China
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10
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Giraud F, Pereira E, Anizon F, Moreau P. Synthesis and Applications of Dihydropyrrolocarbazoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Francis Giraud
- CNRS, SIGMA Clermont, ICCF Université Clermont Auvergne 63000 Clermont‐Ferrand France
| | - Elisabeth Pereira
- CNRS, SIGMA Clermont, ICCF Université Clermont Auvergne 63000 Clermont‐Ferrand France
| | - Fabrice Anizon
- CNRS, SIGMA Clermont, ICCF Université Clermont Auvergne 63000 Clermont‐Ferrand France
| | - Pascale Moreau
- CNRS, SIGMA Clermont, ICCF Université Clermont Auvergne 63000 Clermont‐Ferrand France
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11
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Qiu X, Deng H, Zhao Y, Shi Z. Rhodium-catalyzed, P-directed selective C7 arylation of indoles. SCIENCE ADVANCES 2018; 4:eaau6468. [PMID: 30555918 PMCID: PMC6294599 DOI: 10.1126/sciadv.aau6468] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/15/2018] [Indexed: 06/09/2023]
Abstract
The indole scaffold will continue to play a vital role in the future of drug discovery and agrochemical development. Regioselective direct arylation of indoles on the benzenoid moiety is a challenging task due to the inherent reactivity of the C2 and C3 positions. Here, we have developed an effective strategy for the regioselective direct arylation of indoles at the C7 position with (hetero)aryl bromides by the rational design of a directing group. The key to the high selectivity and reactivity of this method is the appropriate selection of a class of directing groups, N-PR2 (R = t Bu and c Hex), that are easily removed in the presence of the Wilkinson's catalyst. Using the present method as a key step, formal synthesis of marine alkaloid dictyodendrin B has also been demonstrated.
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Affiliation(s)
- Xiaodong Qiu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, Jiangsu Province, China
| | - Hong Deng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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12
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Kalepu J, Gandeepan P, Ackermann L, Pilarski LT. C4-H indole functionalisation: precedent and prospects. Chem Sci 2018; 9:4203-4216. [PMID: 29780550 PMCID: PMC5944383 DOI: 10.1039/c7sc05336c] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 04/19/2018] [Indexed: 12/22/2022] Open
Abstract
C4-decorated indoles feature in a plethora of bioactive and functional compounds of importance to natural product synthesis, material sciences, as well as crop protection and pharmaceutical industries. Traditionally, their syntheses largely involved harsh stoichiometric metalations and radical reactions. However, transition metal catalysed C-H activation has recently evolved into a powerful strategy for the late-stage diversification of indoles at the C4-H position. Modern photoredox, enzymatic and precious transition metal catalysis represent the key stimuli for developing challenging C-C and C-Het bond forming transformations under mild reaction conditions. Herein, we discuss the evolution and application of these methods for the step-economical transformations of otherwise inert C4-H bonds up to December 2017.
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Affiliation(s)
- Jagadeesh Kalepu
- Department of Chemistry - BMC , Uppsala University , Box 576 , 75-123 Uppsala , Sweden . ; https://www.pilarskigroup.org/
| | - Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Goettingen , Germany .
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Goettingen , Germany .
| | - Lukasz T Pilarski
- Department of Chemistry - BMC , Uppsala University , Box 576 , 75-123 Uppsala , Sweden . ; https://www.pilarskigroup.org/
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13
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Heravi MM, Kheilkordi Z, Zadsirjan V, Heydari M, Malmir M. Buchwald-Hartwig reaction: An overview. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.023] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Yang Y, Shi Z. Regioselective direct arylation of indoles on the benzenoid moiety. Chem Commun (Camb) 2018; 54:1676-1685. [DOI: 10.1039/c7cc08752g] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Recent advances in transition metal-catalyzed selective C–H functionalization of indoles have garnered tremendous attention.
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Affiliation(s)
- Youqing Yang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
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15
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Panyam PKR, Sreedharan R, Gandhi T. Synthesis of topologically constrained naphthalimide appended palladium(ii)–N-heterocyclic carbene complexes – insights into additive controlled product selectivity. Org Biomol Chem 2018; 16:4357-4364. [DOI: 10.1039/c8ob00616d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd(ii)–NHC catalyzed regioselective heteroannulation of o-haloanilines and arylethynyl-trimethylsilane to yield indoles and additive controlled switchable product selectivity has been demonstrated.
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Affiliation(s)
| | - Ramdas Sreedharan
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore
- India
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16
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Banne S, Prabhakar Reddy D, Li W, Wang C, Guo J, He Y. A Unified Modular Synthetic Strategy for Dictyodendrins F, H, I, and G. Org Lett 2017; 19:4996-4999. [DOI: 10.1021/acs.orglett.7b02511] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sreenivas Banne
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
| | - D. Prabhakar Reddy
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
| | - Wenxi Li
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
| | - Chenhui Wang
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
| | - Jian Guo
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
| | - Yun He
- Chongqing Key Laboratory
of Natural Product Synthesis and Drug Research, School of Pharmaceutical
Sciences, Chongqing University, Chongqing 401331, PR China
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17
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Matsuoka J, Matsuda Y, Kawada Y, Oishi S, Ohno H. Total Synthesis of Dictyodendrins by the Gold-Catalyzed Cascade Cyclization of Conjugated Diynes with Pyrroles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703279] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Junpei Matsuoka
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yuka Matsuda
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yuiki Kawada
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
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18
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Matsuoka J, Matsuda Y, Kawada Y, Oishi S, Ohno H. Total Synthesis of Dictyodendrins by the Gold-Catalyzed Cascade Cyclization of Conjugated Diynes with Pyrroles. Angew Chem Int Ed Engl 2017; 56:7444-7448. [DOI: 10.1002/anie.201703279] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Indexed: 01/31/2023]
Affiliation(s)
- Junpei Matsuoka
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yuka Matsuda
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Yuiki Kawada
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences; Kyoto University, Sakyo-ku; Kyoto 606-8501 Japan
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19
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Zhang W, Ready JM. Total synthesis of the dictyodendrins as an arena to highlight emerging synthetic technologies. Nat Prod Rep 2017; 34:1010-1034. [DOI: 10.1039/c7np00018a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dictyodendrins are a family of alkaloids isolated from marine sponges, Dictyodendrilla verongiformis and Ianthella sp., which possess a highly substituted pyrrolo[2,3-c]carbazole core at the phenol or quinone oxidation states. This review discusses the many diverse approaches used to synthesize these complex natural products.
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Affiliation(s)
- Wenhan Zhang
- Department of Biochemistry
- University of Texas Southwestern Medical Center
- Dallas
- USA
| | - Joseph M. Ready
- Department of Biochemistry
- University of Texas Southwestern Medical Center
- Dallas
- USA
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20
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Abstract
![]()
Pd-catalyzed
cross-coupling reactions that form C–N bonds
have become useful methods to synthesize anilines and aniline derivatives,
an important class of compounds throughout chemical research. A key
factor in the widespread adoption of these methods has been the continued
development of reliable and versatile catalysts that function under
operationally simple, user-friendly conditions. This review provides
an overview of Pd-catalyzed N-arylation reactions found in both basic
and applied chemical research from 2008 to the present. Selected examples
of C–N cross-coupling reactions between nine classes of nitrogen-based
coupling partners and (pseudo)aryl halides are described for the synthesis
of heterocycles, medicinally relevant compounds, natural products,
organic materials, and catalysts.
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Affiliation(s)
- Paula Ruiz-Castillo
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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21
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Chuang KV, Kieffer ME, Reisman SE. A Mild and General Larock Indolization Protocol for the Preparation of Unnatural Tryptophans. Org Lett 2016; 18:4750-3. [PMID: 27598827 DOI: 10.1021/acs.orglett.6b02477] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild and general protocol for the Pd(0)-catalyzed heteroannulation of o-bromoanilines and alkynes is described. Application of a Pd(0)/P((t)Bu)3 catalyst system enables the efficient coupling of o-bromoanilines at 60 °C, mitigating deleterious side reactions and enabling access to a broad range of useful unnatural tryptophans. The utility of this new protocol is demonstrated in the highly convergent total synthesis of the bisindole natural product (-)-aspergilazine A.
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Affiliation(s)
- Kangway V Chuang
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology Pasadena, California 91125, United States
| | - Madeleine E Kieffer
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology Pasadena, California 91125, United States
| | - Sarah E Reisman
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology Pasadena, California 91125, United States
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22
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A Concise Total Synthesis of Dictyodendrins F, H, and I Using Aryl Ynol Ethers as Key Building Blocks. J Am Chem Soc 2016; 138:10684-92. [PMID: 27471872 DOI: 10.1021/jacs.6b06460] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a concise total synthesis of dictyodendrin F and the first total syntheses of dictyodendrins H and I in six steps. In these syntheses, aryl ynol ethers were employed as the key building blocks to introduce aryl and heteroaryl rings in the dictyodendrins. This rapid synthesis utilized a novel hetero-[2 + 2]-cycloaddition reaction between two aryl ynol ethers to yield a cyclobutenone ring. The cyclobutenone was sequentially converted into a highly substituted carbazole via a retro-4π/6π-electrocyclization-N-acylation cascade reaction to provide the dictyodendrin core. Consecutive intramolecular oxidative coupling and deprotection gave dictyodendrins F, H, and I.
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23
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24
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Song W, Li X, Yang K, Zhao XL, Glazier DA, Xi BM, Tang W. Synthesis of Carbazoles and Carbazole-Containing Heterocycles via Rhodium-Catalyzed Tandem Carbonylative Benzannulations. J Org Chem 2016; 81:2930-42. [DOI: 10.1021/acs.joc.6b00212] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wangze Song
- School
of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Xiaoxun Li
- School
of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Ka Yang
- School
of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Xian-liang Zhao
- School
of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Daniel A. Glazier
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Bao-min Xi
- Guangdong
Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China
| | - Weiping Tang
- School
of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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Ngo TN, Janert F, Ehlers P, Hoang DH, Dang TT, Villinger A, Lochbrunner S, Langer P. Pd(0)-catalyzed domino C-N coupling/hydroamination/C-H arylation reactions: efficient synthesis and photophysical properties of azaindolo[1,2-f]phenanthridines. Org Biomol Chem 2016; 14:1293-301. [PMID: 26647835 DOI: 10.1039/c5ob02274f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A series of new 7- and 4-azaindolo[1,2-f]phenanthridines were synthesized by a domino Pd(0)-catalyzed reaction, which involves three sequential steps: C-N coupling, hydroamination, and intramolecular C-H arylation. The products show promising fluorescence properties with high quantum yields (12-65%).
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Affiliation(s)
- Thang Ngoc Ngo
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
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Tao P, Chen Z, Jia Y. A concise gram-scale synthesis of ht-13-A via a rhodium-catalyzed intramolecular C–H activation reaction. Chem Commun (Camb) 2016; 52:11300-11303. [DOI: 10.1039/c6cc05930a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The enantioselective total synthesis of the 3,4-fused indole alkaloid ht-13-A has been achieved.
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Affiliation(s)
- Pengyu Tao
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Zhuang Chen
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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Pitts AK, O'Hara F, Snell RH, Gaunt MJ. A Concise and Scalable Strategy for the Total Synthesis of Dictyodendrin B Based on Sequential CH Functionalization. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500067] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Pitts AK, O'Hara F, Snell RH, Gaunt MJ. A Concise and Scalable Strategy for the Total Synthesis of Dictyodendrin B Based on Sequential CH Functionalization. Angew Chem Int Ed Engl 2015; 54:5451-5. [DOI: 10.1002/anie.201500067] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Indexed: 11/09/2022]
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Yamaguchi AD, Chepiga KM, Yamaguchi J, Itami K, Davies HML. Concise syntheses of dictyodendrins A and F by a sequential C-H functionalization strategy. J Am Chem Soc 2015; 137:644-7. [PMID: 25562696 DOI: 10.1021/ja512059d] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Syntheses of dictyodendrins A and F have been achieved using a sequential C-H functionalization strategy. The N-alkylpyrrole core is fully functionalized by means of a rhodium(I)-catalyzed C-H arylation at the C3-position, a rhodium(II)-catalyzed double C-H insertion at the C2- and C5-positions, and a Suzuki-Miyaura cross-coupling reaction at the C4-position. The syntheses of dictyodendrins A and F were completed by formal 6π-electrocyclization to generate the pyrrolo[2,3-c]carbazole core of the natural products.
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Affiliation(s)
- Atsushi D Yamaguchi
- Department of Chemistry, Graduate School of Science, §Institute of Transformative Bio-Molecules (WPI-ITbM), and ∥JST, ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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31
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Zhang S, Li X, Sun H. Selective amination of aryl chlorides catalysed by Ni(PMe3)4. Dalton Trans 2015; 44:16224-7. [DOI: 10.1039/c5dt02298c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C,N-coupling reactions of aryl chlorides and aryl amines catalyzed by a nickel catalyst are reported.
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Affiliation(s)
- Shumiao Zhang
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan
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32
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Herraiz-Cobo J, Albericio F, Álvarez M. The Larock Reaction in the Synthesis of Heterocyclic Compounds. ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.04.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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