1
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Pan X, Dong B, Wu Y, Gao B, Song C. Synthesis of Functionalized 4-Hydroxy Carbazoles and Carbazole Alkaloids via Ring Expansion of Indole Cyclopentanone. J Org Chem 2024; 89:8845-8850. [PMID: 38814829 DOI: 10.1021/acs.joc.4c00730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The exploration of a ring expansion reaction from indole cyclopentanone to generate a range of diversely functionalized 4-hydroxyl carbazole frameworks, representing the core structure of numerous carbazole alkaloids, has been conducted under mild reaction conditions. This approach exhibits broad functional group tolerance and moderate to good yields. The practical applicability of this strategy has been demonstrated through the concise syntheses of carbazomycins A, D, and G.
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Affiliation(s)
- Xiaolong Pan
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Boyang Dong
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Yangang Wu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Beiling Gao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Chuanjun Song
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
- Pingyuan Laboratory, Zhengzhou University, Zhengzhou 450001, P. R. China
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2
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Huang J, Zhang R, Wu X, Dong G, Xia Y. Intramolecular One-Carbon Homologation of Unstrained Ketones via C-C Activation-Enabled 1,1-Insertion of Alkenes. Org Lett 2022; 24:2436-2440. [PMID: 35302376 DOI: 10.1021/acs.orglett.2c00716] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Here, we describe the development of a Rh-catalyzed intramolecular one-carbon homologation of unstrained aryl ketones through a formal 1,1-insertion process of olefins, enabled by temporary directing group (TDG)-aided C-C activation. The reaction provides a distinct approach to access various substituted 1-indanones. Computational mechanistic studies reveal that the formal 1,1-insertion is realized by a selective C(sp2)-C(sp3) activation and turnover limiting 2,1-insertion into the alkene, followed by a facile β-H elimination and reinsertion process.
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Affiliation(s)
- Jiangkun Huang
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Rui Zhang
- Department of Chemistry, University of Chicago, Chicago 60637, United States
| | - Xiuli Wu
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago 60637, United States
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
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3
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Zamarija I, Marsh BJ, Magauer T. Ring Expansion of 1-Indanones to 2-Halo-1-naphthols as an Entry Point to Gilvocarcin Natural Products. Org Lett 2021; 23:9221-9226. [PMID: 34780199 PMCID: PMC7612072 DOI: 10.1021/acs.orglett.1c03530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Indexed: 11/29/2022]
Abstract
Herein, we describe a two-step ring expansion of 1-indanones to afford 2-chloro/bromo-1-naphthols (32 examples). The developed method shows broad functional group tolerance, benefits from mild reaction conditions, and enables rapid access to the tetracyclic core of gilvocarcin natural products. The orthogonally functionalized products allow for selective postmodifications as exemplified in the total synthesis of defucogilvocarcin M. For the selective oxidation of the chromene, a mild and regioselective oxidation protocol (DDQ and TBHP) was developed.
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Affiliation(s)
- Ivica Zamarija
- Institute of Organic Chemistry and Center for
Molecular Biosciences, Leopold-Franzens-University Innsbruck,
Innrain 80-82, 6020 Innsbruck, Austria
| | - Benjamin J. Marsh
- Department of Chemistry and Pharmacy,
Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13,
81377 Munich, Germany
| | - Thomas Magauer
- Institute of Organic Chemistry and Center for
Molecular Biosciences, Leopold-Franzens-University Innsbruck,
Innrain 80-82, 6020 Innsbruck, Austria
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4
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Liu X, Du D, Li S, Wang X, Xu C, Wang M. Defluorinative Ring‐Opening Indolylation of Siloxydifluorocyclopropanes: Controlled Synthesis of α‐Fluoro‐β‐Indolyl‐Propanones for Carbazole Construction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaowei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Dongxu Du
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Shuting Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Xin Wang
- First Hospital of Bethune Jilin University Changchun 130021 People's Republic of China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University Changchun 130024 People's Republic of China
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5
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Wang S, Liu X, Zhu D, Wang M. Copper-Catalyzed Ring-Opening Defluorinative Alkylation of Siloxydifluorocyclopropanes: Synthesis of γ-Fluoro-δ-Ketoesters and γ,δ-Diketonitriles. J Org Chem 2020; 85:12408-12417. [PMID: 32885655 DOI: 10.1021/acs.joc.0c01643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In view of the importance of both fluorinated synthons and homoenolate equivalents, synthetic application of difluorocyclopropanols is desired but remains challenging due to their thermodynamic instability. Herein, we use siloxydifluorocyclopropanes as difluorocyclopropanol precursors to carry out new Cu-catalyzed ring-opening defluorinative alkylation. With α-bromo carboxylic esters as coupling partners, the reaction affords γ-fluoro-δ-ketoesters via a CuI/CuII catalytic cycle. Interestingly, by the use of α-bromoamides, the ring-opening defluorinative alkylation is followed by an additional intramolecular C-N oxidative coupling to deliver a lactam intermediate, which further undergoes defluorination, hydrolysis, ring opening, and dehydration cascade via a CuI/CuII/CuIII catalytic pathway, leading to γ,δ-diketonitriles as the final products.
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Affiliation(s)
- Shifang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xiaowei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dongsheng Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
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6
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Andrianova AA, Maslova YD, Novikov MA, Semenov SE, Nefedov OM. (NHC)AgCl catalyzed bromofluorocyclopropanation of alkenes with CFBr2CO2Na. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Wang D, Yuan Z, Liu Q, Chen P, Liu G. Decarboxylative Fluorination of Arylcarboxylic Acids Promoted by ortho
-Hydroxy and Amino Groups. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dinghai Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
| | - Zheliang Yuan
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
| | - Qilun Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
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8
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Song X, Xu C, Du D, Zhao Z, Zhu D, Wang M. Ring-Opening Diarylation of Siloxydifluorocyclopropanes by Ag(I) Catalysis: Stereoselective Construction of 2-Fluoroallylic Scaffold. Org Lett 2017; 19:6542-6545. [DOI: 10.1021/acs.orglett.7b03254] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaoning Song
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dongxu Du
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ziming Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dongsheng Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
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9
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Li J, Xu C, Wei N, Wang M. Synthesis of 2,2-Difluorinated 4-Isoflavanols/4-Thioisoflavanols via a Base-Catalyzed [4 + 2] Annulation Reaction of gem-Difluoroolefins. J Org Chem 2017; 82:11348-11357. [DOI: 10.1021/acs.joc.7b01635] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiaheng Li
- Jilin
Province Key Laboratory of Organic Functional Molecular Design and
Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Cong Xu
- Jilin
Province Key Laboratory of Organic Functional Molecular Design and
Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Na Wei
- Jilin
Province Key Laboratory of Organic Functional Molecular Design and
Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Mang Wang
- Jilin
Province Key Laboratory of Organic Functional Molecular Design and
Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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10
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Takayama R, Yamada A, Fuchibe K, Ichikawa J. Synthesis of Sulfanylated Difluoroalkenes: Electrophilic Difluoromethylidenation of Dithioesters with Difluorocarbene. Org Lett 2017; 19:5050-5053. [DOI: 10.1021/acs.orglett.7b02222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryo Takayama
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Atsushi Yamada
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Kohei Fuchibe
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty
of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305−8571, Japan
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11
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Yu Y, Chen Y, Huang W, Wu W, Jiang H. One-Pot Synthesis of Spirocyclic or Fused Pyrazoles from Cyclic Ketones: Calcium Carbide as the Carbon Source in Ring Expansion. J Org Chem 2017; 82:9479-9486. [DOI: 10.1021/acs.joc.7b01496] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yue Yu
- Key Laboratory of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yang Chen
- Key Laboratory of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wei Huang
- Key Laboratory of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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12
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Liu Q, Ni C, Hu J. China's flourishing synthetic organofluorine chemistry: innovations in the new millennium. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx058] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Abstract
The new millennium has witnessed the rapid development of synthetic organofluorine chemistry all over the world, and chemists in China have made significant contributions in this field. This review aims to provide a brief introduction to China's primary innovations from 2000 to early 2017, covering fluorination, fluoroalkylation, fluoromethylthiolation, fluoroolefination and polyfluoroarylation, as well as synthesis with fluorinated building blocks. Recent advances in the chemistry of difluorocarbene and the chemistry of carbon–fluorine bond activation are also discussed. As a conclusion, the review ends with some personal perspectives on the future development of China's synthetic organofluorine chemistry.
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13
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14
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Chang J, Xu C, Gao J, Gao F, Zhu D, Wang M. Me3SiCF2Br-Self-Assisted Domino Reaction: Catalytic Synthesis of α,α-Difluorocyclopentanones from Methylvinylketones. Org Lett 2017; 19:1850-1853. [DOI: 10.1021/acs.orglett.7b00611] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Chang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Jie Gao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Fengyun Gao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Dongsheng Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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15
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Affiliation(s)
- Hideki Amii
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University
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16
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Abstract
The acid-promoted cycloisomerization of conjugated dienals and linearly-conjugated dienones for the synthesis of five-membered ring systems is reviewed.
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Affiliation(s)
- Martín J. Riveira
- Departamento de Química Orgánica
- Instituto de Química Rosario (CONICET – UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Suipacha 531
| | - Lucía A. Marsili
- Departamento de Química Orgánica
- Instituto de Química Rosario (CONICET – UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Suipacha 531
| | - Mirta P. Mischne
- Departamento de Química Orgánica
- Instituto de Química Rosario (CONICET – UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Suipacha 531
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17
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Percy JM, Emerson H, Fyfe JWB, Kennedy AR, Maciuk S, Orr D, Rathouská L, Redmond JM, Wilson PG. Modular Construction of Fluoroarenes from a New Difluorinated Building Block by Cross-Coupling/Electrocyclisation/Dehydrofluorination Reactions. Chemistry 2016; 22:12166-75. [DOI: 10.1002/chem.201601584] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jonathan M. Percy
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Helena Emerson
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - James W. B. Fyfe
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Alan R. Kennedy
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Sergej Maciuk
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - David Orr
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Lucie Rathouská
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Joanna M. Redmond
- Allergic Inflammation DPU; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Peter G. Wilson
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
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18
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Song X, Tian S, Zhao Z, Zhu D, Wang M. Controlled Ring-Opening of Siloxydifluorocyclopropanes for Carbocyclization: Synthesis of Difluorocyclopentenones. Org Lett 2016; 18:3414-7. [DOI: 10.1021/acs.orglett.6b01567] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoning Song
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shuangquan Tian
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ziming Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Dongsheng Zhu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
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19
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Unzner TA, Grossmann AS, Magauer T. Rapid Access to Orthogonally Functionalized Naphthalenes: Application to the Total Synthesis of the Anticancer Agent Chartarin. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Teresa A. Unzner
- Department of Chemistry and Pharmacy; Ludwig-Maximilians-University Munich; Butenandtstrasse 5-13 81377 Munich Germany
| | - Adriana S. Grossmann
- Department of Chemistry and Pharmacy; Ludwig-Maximilians-University Munich; Butenandtstrasse 5-13 81377 Munich Germany
| | - Thomas Magauer
- Department of Chemistry and Pharmacy; Ludwig-Maximilians-University Munich; Butenandtstrasse 5-13 81377 Munich Germany
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20
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Unzner TA, Grossmann AS, Magauer T. Rapid Access to Orthogonally Functionalized Naphthalenes: Application to the Total Synthesis of the Anticancer Agent Chartarin. Angew Chem Int Ed Engl 2016; 55:9763-7. [PMID: 27355517 DOI: 10.1002/anie.201605071] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 12/14/2022]
Abstract
We report the synthesis of orthogonally functionalized naphthalenes from simple, commercially available indanones in four steps. The developed method proceeds through a two-step process that features a thermally induced fragmentation of a cyclopropane indanone with simultaneous 1,2-chloride shift. Migration of the chloride substituent occurs in a regioselective manner to preferentially afford the para-chloronaphthol substitution pattern. The obtained naphthols are versatile building blocks that can be selectively modified and used for the efficient construction of biologically active molecules. This has enabled the total synthesis of the potent anticancer natural product chartarin through a highly convergent retrosynthetic bond disconnection.
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Affiliation(s)
- Teresa A Unzner
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Adriana S Grossmann
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Thomas Magauer
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University Munich, Butenandtstrasse 5-13, 81377, Munich, Germany.
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