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Zhao J, Jia L, Yuan C, Li L, Hu M, Han F, Hu X. Molecular Iodine‐Catalyzed Sulfonyl‐Activated sp
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C−N Bond Cleavage for the C3‐Alkylation of 4‐Hydroxycoumarins. ChemistrySelect 2022. [DOI: 10.1002/slct.202103318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jinyu Zhao
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
| | - Lina Jia
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals Qiqihar 161006 China
| | - Changping Yuan
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
| | - Linlin Li
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
| | - Minggang Hu
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
| | - Fuzhong Han
- College of Chemistry and Chemical Engineering Qiqihar University Qiqihar 161006 China
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals Qiqihar 161006 China
| | - Xiangping Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
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Steeds HG, Knowles JP, Yu WL, Richardson J, Cooper KG, Booker‐Milburn KI. Rapid Access to Azabicyclo[3.3.1]nonanes by a Tandem Diverted Tsuji-Trost Process. Chemistry 2020; 26:14330-14334. [PMID: 32812670 PMCID: PMC7702095 DOI: 10.1002/chem.202003762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Indexed: 12/14/2022]
Abstract
A three-step synthesis of the 2-azabicyclo[3.3.1]nonane ring system from simple pyrroles, employing a combined photochemical/palladium-catalysed approach is reported. Substrate scope is broad, allowing the incorporation of a wide range of functionality relevant to medicinal chemistry. Mechanistic studies demonstrate that the process occurs by acid-assisted C-N bond cleavage followed by β-hydride elimination to form a reactive diene, demonstrating that efficient control of what might be considered off-cycle reactions can result in productive tandem catalytic processes. This represents a short and versatile route to the biologically important morphan scaffold.
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Affiliation(s)
- Hannah G. Steeds
- School of ChemistryUniversity of BristolCantock' CloseBristolBS8 1TSUK
| | | | - Wai L. Yu
- School of ChemistryUniversity of BristolCantock' CloseBristolBS8 1TSUK
| | | | - Katie G. Cooper
- Pharmaceutical Technology & DevelopmentAstraZenecaMacclesfield CampusCheshireSK10 2NAUK
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Wang S, Si R, Zhuang Q, Guo X, Ke T, Zhang X, Zhang F, Tu Y. Collective Total Synthesis of Aspidofractinine Alkaloids through the Development of a Bischler–Napieralski/Semipinacol Rearrangement Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuang‐Hu Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Rui‐Qi Si
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Qing‐Bo Zhuang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Xiang Guo
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Tian Ke
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
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Wang S, Si R, Zhuang Q, Guo X, Ke T, Zhang X, Zhang F, Tu Y. Collective Total Synthesis of Aspidofractinine Alkaloids through the Development of a Bischler–Napieralski/Semipinacol Rearrangement Reaction. Angew Chem Int Ed Engl 2020; 59:21954-21958. [DOI: 10.1002/anie.202009238] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Shuang‐Hu Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Rui‐Qi Si
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Qing‐Bo Zhuang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Xiang Guo
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Tian Ke
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
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Wu A, Feng Q, Sung HHY, Williams ID, Sun J. Synthesis of Eight‐Membered Lactams through Formal [6+2] Cyclization of Siloxy Alkynes and Vinylazetidines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902866] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- An Wu
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Qiang Feng
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Herman H. Y. Sung
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Ian D. Williams
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
| | - Jianwei Sun
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay Kowloon, Hong Kong SAR China
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Wu A, Feng Q, Sung HHY, Williams ID, Sun J. Synthesis of Eight-Membered Lactams through Formal [6+2] Cyclization of Siloxy Alkynes and Vinylazetidines. Angew Chem Int Ed Engl 2019; 58:6776-6780. [PMID: 30888103 DOI: 10.1002/anie.201902866] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 12/31/2022]
Abstract
A new approach for the efficient synthesis of eight-membered lactams through formal [6+2] cyclization of siloxy alkynes and vinylazetidines has been developed. Evidence from a chirality transfer experiment suggests that the reaction proceeds via a [3,3]-sigmatropic rearrangement from a ketene intermediate. This insight led to the development of alternative conditions and use of acyl chlorides as ketene precursors for the [6+2] reaction with vinylazetidines.
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Affiliation(s)
- An Wu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Qiang Feng
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Herman H Y Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Ian D Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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Xu JK, Wang Y, Gu Y, Tian SK. Palladium-Catalyzed Stereospecific Allylation of Nitroacetates with Enantioenriched Primary Allylic Amines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Hao W, Wei J, Geng W, Zhang WX, Xi Z. Transfer of Aryl Halide to Alkyl Halide: Reductive Elimination of Alkylhalide from Alkylpalladium Halides Containingsyn-β-Hydrogen Atoms. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408341] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hao W, Wei J, Geng W, Zhang WX, Xi Z. Transfer of Aryl Halide to Alkyl Halide: Reductive Elimination of Alkylhalide from Alkylpalladium Halides Containingsyn-β-Hydrogen Atoms. Angew Chem Int Ed Engl 2014; 53:14533-7. [DOI: 10.1002/anie.201408341] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 09/26/2014] [Indexed: 11/09/2022]
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Banerjee D, Junge K, Beller M. Cooperative Catalysis by Palladium and a Chiral Phosphoric Acid: Enantioselective Amination of Racemic Allylic Alcohols. Angew Chem Int Ed Engl 2014; 53:13049-53. [DOI: 10.1002/anie.201405511] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 09/10/2014] [Indexed: 11/07/2022]
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Banerjee D, Junge K, Beller M. Cooperative Catalysis by Palladium and a Chiral Phosphoric Acid: Enantioselective Amination of Racemic Allylic Alcohols. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405511] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Huo X, Yang G, Liu D, Liu Y, Gridnev ID, Zhang W. Palladium-Catalyzed Allylic Alkylation of Simple Ketones with Allylic Alcohols and Its Mechanistic Study. Angew Chem Int Ed Engl 2014; 53:6776-80. [DOI: 10.1002/anie.201403410] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Indexed: 12/13/2022]
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Huo X, Yang G, Liu D, Liu Y, Gridnev ID, Zhang W. Palladium-Catalyzed Allylic Alkylation of Simple Ketones with Allylic Alcohols and Its Mechanistic Study. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403410] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Shang H, Wang Y, Tian Y, Feng J, Tang Y. The Divergent Synthesis of Nitrogen Heterocycles by Rhodium(II)-Catalyzed Cycloadditions of 1-Sulfonyl 1,2,3-Triazoles with 1,3-Dienes. Angew Chem Int Ed Engl 2014; 53:5662-6. [DOI: 10.1002/anie.201400426] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/10/2014] [Indexed: 11/11/2022]
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Shang H, Wang Y, Tian Y, Feng J, Tang Y. The Divergent Synthesis of Nitrogen Heterocycles by Rhodium(II)-Catalyzed Cycloadditions of 1-Sulfonyl 1,2,3-Triazoles with 1,3-Dienes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400426] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hao W, Geng W, Zhang WX, Xi Z. Palladium-Catalyzed One-Pot Three- or Four-Component Coupling of Aryl Iodides, Alkynes, and Amines through CN Bond Cleavage: Efficient Synthesis of Indole Derivatives. Chemistry 2014; 20:2605-12. [DOI: 10.1002/chem.201304215] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 01/01/2023]
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Li MB, Wang Y, Tian SK. Regioselective and Stereospecific Cross-Coupling of Primary Allylic Amines with Boronic Acids and Boronates through Palladium-Catalyzed CN Bond Cleavage. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201109171] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Li MB, Wang Y, Tian SK. Regioselective and stereospecific cross-coupling of primary allylic amines with boronic acids and boronates through palladium-catalyzed C-N bond cleavage. Angew Chem Int Ed Engl 2012; 51:2968-71. [PMID: 22334495 DOI: 10.1002/anie.201109171] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Indexed: 12/14/2022]
Affiliation(s)
- Man-Bo Li
- Joint Laboratory of Green Synthetic Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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