1
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Cheng Z, Chen J, Zhang Y, Shao Y, Sun J, Tang S. Decarboxylative Cyclization of Ethynyl Benzoxazinanones with Imidazolidines to Access 2,3-Indole-Fused 1,4-Diazocines. Org Lett 2024; 26:4863-4867. [PMID: 38833707 DOI: 10.1021/acs.orglett.4c01279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
2,3-Indole-fused 1,4-diazocines represent a new family of indole alkaloid compounds and are difficult to access by the reported protocols. Herein, we report a copper-catalyzed decarboxylative cyclization of cyclic propargylic carbamates with imidazolidines via sequential C-N/C-N/C-C bond formation to deliver a series of 2,3-indole-fused 1,4-diazocines, with a broad substrate scope and mild conditions.
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Affiliation(s)
- Zhangru Cheng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiadong Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yulu Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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2
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Ji D, Li X. Rh(III)-Catalyzed C-H Activation of Benzamides and Chemodivergent Annulation with Benzoxazinanones: Substrate Controlled Selectivity. Org Lett 2023; 25:7083-7088. [PMID: 37747919 DOI: 10.1021/acs.orglett.3c02371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Decarboxylative annulation of propargyl carbamates with benzamides has been realized via rhodium-catalyzed C-H bond activation under mild conditions, delivering two distinct classes of heterocycles in high efficiency and selectivity under substrate control. This protocol provides a direct synthetic method for the preparation of functionalized 1,8-naphthyridines and isoindolinones.
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Affiliation(s)
- Danqing Ji
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi'an 710062, China
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3
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Pang Y, Chen S, Han J, Zhu C, Zhao CG, Xie J. Dimeric Manganese-Catalyzed Hydroalkenylation of Alkynes with a Versatile Silicon-Based Directing Group. Angew Chem Int Ed Engl 2023; 62:e202306922. [PMID: 37283307 DOI: 10.1002/anie.202306922] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 06/08/2023]
Abstract
Herein, we present a manganese-catalyzed, branched-selective hydroalkenylation of terminal alkynes, under mild conditions through facile installation of a versatile silanol as a removable directing group. With an alkenyl boronic acid as the coupling partner, this reaction produces stereodefined (E,E)-1,3-dienes with high regio-, chemo- and stereoselectivity. The protocol features mild reaction conditions such as room temperature and an air atmosphere, while maintaining excellent functional group compatibility. The resulting 1,3-dienesilanol products serve as versatile building blocks, as the removal of the silanol group allows for the synthesis of both branched terminal 1,3-dienes for downstream coupling reactions, as well as stereoselective construction of linear (E,E)-1,3-dienes and (E,E,E)- or (E,E,Z)-1,3,5-trienes. In addition, a Diels-Alder cycloaddition can smoothly and selectively deliver silicon-containing pentasubstituted cyclohexene derivatives. Mechanistic investigations, in conjunction with DFT calculations, suggest a bimetallic synergistic activation model to account for the observed enhanced catalytic efficiency and good regioselectivity.
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Affiliation(s)
- Yubo Pang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Shuai Chen
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jie Han
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Chuan-Gang Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, China
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4
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Maayuri R, Gandeepan P. Manganese-catalyzed hydroarylation of multiple bonds. Org Biomol Chem 2023; 21:441-464. [PMID: 36541044 DOI: 10.1039/d2ob01674e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Transition metal-catalyzed C-H activation has become a promising strategy in organic synthesis due to its improved atom-, step- and resource economy. Considering the Earth's abundance, economic benefits, and low toxicity, 3d metal catalysts for C-H activation have received a significant focus. In particular, organometallic manganese-catalyzed C-H activation has proven to be versatile and suitable for a wide range of transformations such as C-H addition to π-components, arylation, alkylation, alkynylation, amination, and many more. Among them, manganese-catalyzed C-H addition to C-C and C-heteroatom multiple bonds exhibited unique and promising reactivity to construct a wide range of complex organic molecules. In this review, we highlight the developments in the field of manganese-catalyzed hydroarylation of multiple bonds via C-H activation with a range of applications until August 2022.
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Affiliation(s)
- Rajaram Maayuri
- Department of Chemistry, Indian Institute of Technology Tirupati, Yerpedu-Venkatagiri Road, Yerpedu Post, Tirupati District, Andhra Pradesh 517619, India.
| | - Parthasarathy Gandeepan
- Department of Chemistry, Indian Institute of Technology Tirupati, Yerpedu-Venkatagiri Road, Yerpedu Post, Tirupati District, Andhra Pradesh 517619, India.
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5
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Wang BC, Fan T, Xiong FY, Chen P, Fang KX, Tan Y, Lu LQ, Xiao WJ. De Novo Construction of Chiral Aminoindolines by Cu-Catalyzed Asymmetric Cyclization and Subsequent Discovery of an Unexpected Sulfonyl Migration. J Am Chem Soc 2022; 144:19932-19941. [PMID: 36270010 DOI: 10.1021/jacs.2c08090] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Searching for efficient strategies to access structurally novel aminoindolines is of great significance for drug discovery. However, catalytic asymmetric de novo construction of aminoindoline scaffolds with functionality primed for diversification still remains elusive. Here, we report a Cu-catalyzed asymmetric cyclization of ethynyl benzoxazinones with amines, producing chiral 3-aminoindolines in good yield and with high enantioselectivity (up to 97% yield and 98:2 er). Moreover, a radical-mediated sulfonyl migration of these products was unexpectedly found, further affording new chiral 3-aminoindolines bearing alkenyl sulfonyl groups with retained enantiopurity (up to 84% yield and 98:2 er). Bioactivity evaluations indicate that these 3-aminoindolines show notable antitumor activities and chirality is proven to have a significant impact on their antitumor activity.
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Affiliation(s)
- Bao-Cheng Wang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Tingting Fan
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Fen-Ya Xiong
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Peng Chen
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Kai-Xin Fang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Ying Tan
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P. R. China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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6
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Zhong Q, Gao H, Wang PL, Zhou C, Miao T, Li H. Electrochemical Site-Selective Alkylation of Azobenzenes with (Thio)Xanthenes. Molecules 2022; 27:molecules27154967. [PMID: 35956916 PMCID: PMC9370205 DOI: 10.3390/molecules27154967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 12/10/2022] Open
Abstract
Herein, we first report an electrochemical methodology for the site-selective alkylation of azobenzenes with (thio)xanthenes in the absence of any transition metal catalyst or external oxidant. A variety of groups are compatible with this electrochemical alkylation, which furnishes the products in moderate to good yields.
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Affiliation(s)
- Qiang Zhong
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
| | - Hui Gao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Pei-Long Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
- Information College, Huaibei Normal University, Huaibei 235000, China
- Correspondence: (P.-L.W.); (H.L.)
| | - Chao Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
| | - Tao Miao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, China
- Correspondence: (P.-L.W.); (H.L.)
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7
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Chen G, Xu B. Divergent Synthesis of Sulfonyl Quinolines, Formyl Indoles, and Quinolones from Ethynyl Benzoxazinanones via Au I Catalysis, Au I-ArI Co-Catalysis, and Silver Catalysis. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guifang Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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8
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He Y, Du C, Han J, Han J, Zhu C, Xie J. Manganese‐Catalyzed Anti‐Markovnikov
Hydroarylation of Enamides: Modular Synthesis of Arylethylamines. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yijie He
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Chaoyu Du
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Jian Han
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Jie Han
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
- Green Catalysis Center, College of Chemistry and Molecular Engineering, Zhengzhou University Zhengzhou 450001 China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 China
- Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University Changsha 410082 China
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9
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Ali S, Rani A, Khan S. Manganese-Catalyzed C-H Functionalizations Driven via Weak Coordination: Recent Developments and Perspectives. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Cembellín S, Maisuls I, Daniliuc CG, Osthues H, Doltsinis NL, Strassert CA, Glorius F. One-step synthesis of indolizino[3,4,5- ab]isoindoles by manganese(I)-catalyzed C-H activation: structural studies and photophysical properties. Org Biomol Chem 2022; 20:796-800. [PMID: 35006235 DOI: 10.1039/d1ob02246f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Herein, a regioselective synthesis of indolizino[3,4,5-ab]isoindoles, a valuable class of heterocycles with interesting luminescence properties, is described using manganese(I)-catalyzed C-H activation. The reported transformation proceeds in one-step and employs readily available 2-phenylpyridines as starting materials. Furthermore, the obtained single products exhibit blue-greenish fluorescence with high quantum yields.
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Affiliation(s)
- Sara Cembellín
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany.,Organic Chemistry Department, Universidad Complutense de Madrid, 28040 Madrid, Spain.
| | - Iván Maisuls
- Institute for Inorganic and Analytical Chemistry, Center for Nanotechnology, Center for Soft Nanoscience, Cells in Motion Interfaculty Centre, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Helena Osthues
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Nikos L Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Cristian A Strassert
- Institute for Inorganic and Analytical Chemistry, Center for Nanotechnology, Center for Soft Nanoscience, Cells in Motion Interfaculty Centre, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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11
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Li Y, Li Y, Dong Y, Xia C, Li Y. Manganese-Catalyzed Allylation of Quinazolinones with 4-Vinyl-1,3-dioxolan-2-one via C—H Activation. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Bera A, Kabadwal LM, Bera S, Banerjee D. Recent advances on non-precious metal-catalyzed C-H functionalization of N-heteroarenes. Chem Commun (Camb) 2021; 58:10-28. [PMID: 34874036 DOI: 10.1039/d1cc05899a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
N-Heteroarenes are widely used for numerous medicinal applications, lifesaving drugs and show utmost importance as intermediates in chemical synthesis. This feature article highlights the recent advances, from 2015 to August 2021, on sp2 and sp3 C-H bond functionalization reactions of various N-heteroarenes catalyzed by non-precious transition metals (Mn, Co, Fe, Ni, etc.). The salient features of the report are: (i) the development of newer catalysis for Csp2-H activation of N-heteroarenes and categorized into alkylation, alkenylation, borylation, cyanation, and annulation reactions, (ii) recent advances on Csp3-H bond functionalization of N-heteroarenes considering newer approaches for alkylation as well as alkenylation processes, and (iii) synthetic applications and practical utility of the catalytic protocols utilized for late-stage drug development; (iv) scope for the development of newer catalytic protocols along with mechanistic studies and detail mechanistic findings of various important processes.
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Affiliation(s)
- Atanu Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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13
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Li Y, Wang H, Li Y, Li Y, Sun Y, Xia C, Li Y. Manganese-Catalyzed [4 + 2] Annulation of N-H Amidines with Vinylene Carbonate via C-H Activation. J Org Chem 2021; 86:18204-18210. [PMID: 34821499 DOI: 10.1021/acs.joc.1c02473] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Manganese-catalyzed C-H bond functionalization of aryl amidines for the synthesis of 1-aminoisoquinolines in the presence of vinylene carbonate has been developed. The reaction features a broad substrate scope and proceeds under mild reaction conditions with only the carbonate anion as the byproduct.
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Affiliation(s)
- Yudong Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China.,University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Huan Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China.,University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Ying Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China
| | - Yang Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China.,University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Yuxia Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China
| | - Yuehui Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Center for Excellence in Molecular Synthesis, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou730000, P. R. China
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14
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Chen G, Xu B. Mild Base-Promoted Tandem Nucleophilic Substitution/Decarboxylation/Hydroamination: Access to 3-Sulfonylindoles and 2-Methyleneindophenols. Org Lett 2021; 23:9157-9162. [PMID: 34766781 DOI: 10.1021/acs.orglett.1c03472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed an efficient construction of 3-sulfonylindoles and 2-methyleneindophenols via decarboxylative propargylation/hydroamination of ethynyl benzoxazinanones using sodium sulfonates and phenols as the nucleophiles. The reaction featured mild conditions (K2CO3), simple operation, and high chemoselectivity and was transition-metal-free. Our protocol could also be extended to other nucleophiles, including malonates, alcohols, and indoles. The broad substrate scope and scalability made this protocol practical for the synthesis of indole derivatives.
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Affiliation(s)
- Guifang Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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15
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Construction of poly-N-heterocyclic scaffolds via the controlled reactivity of Cu-allenylidene intermediates. Commun Chem 2021; 4:158. [PMID: 36697740 PMCID: PMC9814594 DOI: 10.1038/s42004-021-00596-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/27/2021] [Indexed: 01/28/2023] Open
Abstract
Controlling the sequence of the three consecutive reactive carbon centres of Cu-allenylidene remains a challenge. One of the impressive achievements in this area is the Cu-catalyzed annulation of 4-ethynyl benzoxazinanones, which are transformed into zwitterionic Cu-stabilized allenylidenes that are trapped by interceptors to provide the annulation products. In principle, the reaction proceeds via a preferential γ-attack, while annulation reactions via an α- or β-attack are infrequent. Herein, we describe a method for controlling the annulation mode, by the manipulation of a CF3 or CH3 substituent, to make it proceed via either a γ-attack or an α- or β-attack. The annulation of CF3-substituted substrates with sulfamate-imines furnished densely functionalized N-heterocycles with excellent enantioselectivity via a cascade of an internal β-attack and an external α-attack. CH3-variants were transformed into different heterocycles that possess a spiral skeleton, via a cascade of an internal β-attack and a hydride α-migration followed by a Diels-Alder reaction.
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16
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Huo J, Yang Y, Wang C. Manganese-Catalyzed [3 + 2] Cyclization of Ketones and Isocyanates via Inert C-H Activation. Org Lett 2021; 23:3384-3388. [PMID: 33900094 DOI: 10.1021/acs.orglett.1c00857] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Stoichiometric cyclomanganation of aromatic ketones and further reactions of the thus-formed manganacycles with isocyanates were first reported by Kaesz and Liebeskind in 1975 and 1990, respectively. The buildup of a closed manganese catalytic cycle for the reaction of ketones and isocyanates remains an unsolved problem. Herein, an unprecedented trio of Me2Zn/AlCl3/AgOTf is developed to build up manganese catalysis, which enables the [3 + 2] cyclization of ketones with isocyanates via inert C-H activation to access 3-alkylidene phthalimidines in a straightforward manner unachieved by other transition metal catalyses.
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Affiliation(s)
- Jiaqi Huo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunhui Yang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Physical Science Laboratory, Huairou National Comprehensive Science Center, Beijing 101400, China
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Physical Science Laboratory, Huairou National Comprehensive Science Center, Beijing 101400, China
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17
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Wang L, Jiang F, Gao X, Wang W, Wu Y, Guo H, Zheng B. Base‐Mediated Decarboxylative [3+2] Annulation of Ethynyl Benzoxazinanones and Benzimidamides: Synthesis of Imidazole Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lan Wang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Feng Jiang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Xing Gao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Bing Zheng
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
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18
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Wang Z, Wang C. Manganese/NaOPh co-catalyzed C2-selective C–H conjugate addition of indoles to α,β-unsaturated carbonyls. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.01.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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19
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Shu B, Chen SY, Deng NX, Zheng T, Xie H, Xie XL, Wu JQ, Cao H, Zhang SS. Rhodium( iii)-catalyzed C–H/C–F activation sequence: expedient and divergent synthesis of 2-benzylated indoles and 2,2′-bis(indolyl)methanes. Org Chem Front 2021. [DOI: 10.1039/d1qo00462j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel method for the construction of fluorinated 2-benzylated indoles and 2,2’-bis(indolyl)methanes was developed via Rh(iii)-catalyzed C–H/C–F activation of arenes with employing 3,3-difluoro-2-exo-methylidene indolines as cross-coupling partner.
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Affiliation(s)
- Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- Center for Drug Research and Development
| | - Shao-Yong Chen
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
| | - Nan-Xiang Deng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Tao Zheng
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Xiao-Ling Xie
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center
- Guangdong Pharmaceutical University
- Zhongshan
- P. R. China
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- P. R. China
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20
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Carvalho RL, Almeida RG, Murali K, Machado LA, Pedrosa LF, Dolui P, Maiti D, da Silva Júnior EN. Removal and modification of directing groups used in metal-catalyzed C–H functionalization: the magical step of conversion into ‘conventional’ functional groups. Org Biomol Chem 2021; 19:525-547. [DOI: 10.1039/d0ob02232b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This feature review is focused on recent approaches for removing versatile directing groups.
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Affiliation(s)
- Renato L. Carvalho
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Renata G. Almeida
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Karunanidhi Murali
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Luana A. Machado
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Pravas Dolui
- Department of Chemistry
- IIT Bombay
- Mumbai 400076
- India
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21
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Yang J, Wu X, Yang B, Liu Y, Cheng R, Gong Z, Sun F. Mn(ii)-Catalysed ortho-alkenylation of aromatic amines and its application in reproductive diseases. RSC Adv 2020; 11:164-167. [PMID: 35423065 PMCID: PMC8690850 DOI: 10.1039/d0ra10172a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 12/03/2022] Open
Abstract
A Mn(ii)-catalysed ortho-alkenylation of aromatic amines and its application in reproductive diseases were developed. The use of MnCl2 was critical for the ortho-alkenylation of aromatic amines. The general applicability of this procedure was highlighted by the synthesis of 27 vinylanilines, with good regioselectivities. The value of our approach in practical applications was investigated by studying the effects of one of the compounds 3m on 8 week-old adult male rats with azoospermia as a mammalian model. The results show that a small amount of sperm will gradually be produced in the epididymis and testes by treatment of 8 week-old adult male rats with azoospermia with 1 mg kg−13m after two weeks, while treatment with 10 mg kg−13m led to obvious sperm production. Notably, if we increase the dose to 100 mg kg−1, there will be a lot of sperm production in the epididymis and testes after two weeks of treatment. The results of this study will be of great significance in research on drugs for treating azoospermia and oligospermia diseases. A Mn(ii)-catalysed ortho-alkenylation of aromatic amines and its application in reproductive diseases were developed.![]()
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Affiliation(s)
- Jinfei Yang
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Xiaolong Wu
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Banghua Yang
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Yirong Liu
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Rui Cheng
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Zijun Gong
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
| | - Fei Sun
- Medical School, Institute of Reproductive Medicine, Nantong University Nantong 226019 China
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22
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Indurthi HK, Virdi R, Koli P, Nageswara Rao D, Sharma DK. Seralite SRC-120 resin catalyzed synthesis of bis(indolyl)methanes using indoles and low/high boiling point carbonyl compounds under solvent free conditions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1849724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Harish K. Indurthi
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology-Banaras Hindu University, Varanasi, India
| | - Reena Virdi
- Overseas Healthcare Pvt Ltd, Phillaur, India
| | - Papita Koli
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology-Banaras Hindu University, Varanasi, India
| | - Desaboini Nageswara Rao
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Deepak K Sharma
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology-Banaras Hindu University, Varanasi, India
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23
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Wang S, Song M, Li X, Huang Y, Zhao T, Wei Z, Lan Y, Tan H. Synthesis of Heterobiaryl 4-Aryl Furans through a Base-Promoted Decarboxylative Propargylation/Cycloisomerization Annulation. Org Lett 2020; 22:8752-8757. [PMID: 33021800 DOI: 10.1021/acs.orglett.0c02668] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A transition-metal-free synthesis of heterobiaryl 4-aryl furans through a base-promoted decarboxylative propargylation/cycloisomerization annulation of ethynyl benzoxazinanones and readily accessible β-keto esters or 1,3-diketones has been developed. A series of novel heterobiaryl 4-aryl furans were accessed efficiently in the presence of base under mild reaction conditions. This protocol is significant for probing the reaction mechanism of ethynyl benzoxazinanones and even other propargylic compounds.
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Affiliation(s)
- Sasa Wang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China.,Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Meimei Song
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Xiuguang Li
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Yunhong Huang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Tingxiang Zhao
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Zhuoji Wei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Yanyun Lan
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Haibo Tan
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
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24
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Zhong D, Jiang F, Shen S, Wang L, Wang W, Wu Y, Xiao Y, Guo H. Formal [3+2] Annulation of Copper‐Allenylidenes with 3‐Oxo‐3‐Arylpropanenitriles: Synthesis of Tetrasubstituted Furans. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- De Zhong
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Feng Jiang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Siyong Shen
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Lan Wang
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Yumei Xiao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
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25
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Wang D, He Y, Dai H, Huang C, Yuan X, Xie J. Manganese‐Catalyzed
Hydrocarbofunctionalization of Internal Alkenes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dongping Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Yijie He
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Haotian Dai
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
| | - Congcong Huang
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu Shandong 273165 China
| | - Xiang‐Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University Qufu Shandong 273165 China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210023 China
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26
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Shao W, Xu‐Xu Q, You S. Highly Diastereoselective Synthesis of Polycyclic Indolines through Formal [4+2] Propargylic Cycloaddition of Indoles with Ethynyl Benzoxazinanones. Chem Asian J 2020; 15:2462-2466. [DOI: 10.1002/asia.202000640] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/22/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Wen Shao
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qing‐Feng Xu‐Xu
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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27
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Gannarapu MR, Zhou J, Jiang B, Shibata N. Two Catalytic Annulation Modes via Cu-Allenylidenes with Sulfur Ylides that Are Dominated by the Presence or Absence of Trifluoromethyl Substituents. iScience 2020; 23:100994. [PMID: 32259670 PMCID: PMC7132161 DOI: 10.1016/j.isci.2020.100994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/18/2020] [Accepted: 03/13/2020] [Indexed: 01/12/2023] Open
Abstract
We disclose the Cu-catalyzed enantioselective synthesis of 3-methyl-3-propargyl-indolines, which contain a quaternary stereogenic carbon center, via the decarboxylative [4 + 1] annulation of 4-methyl-4-propargyl-benzoxazinanones with variety of sulfur ylides. The reaction proceeds predominantly through a γ-attack at the Cu-allenylidene intermediates by sulfur ylides to provide the corresponding indolines in good yield and high enantioselectivity (up to 91% ee). In contrast, the reaction of 4-trifluoromethyl-4-propargyl-benzoxazinanones with sulfur ylides delivers 3-trifluoromethyl-2-functionalized indoles in good to high yield via an unexpected α-attack at the Cu-allenylidene intermediates. Control over the α/γ-attack at the Cu-allenylidene intermediates by the same interceptors was achieved for the first time by the use of trifluoromethyl substituents.
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Affiliation(s)
- Malla Reddy Gannarapu
- Departments of Nanopharmaceutical Science & Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Jun Zhou
- Departments of Nanopharmaceutical Science & Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Bingyao Jiang
- Departments of Nanopharmaceutical Science & Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Norio Shibata
- Departments of Nanopharmaceutical Science & Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan; Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 688 Yingbin Avenue, 321004 Jinhua, China.
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28
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Wang D, Dong J, Fan W, Yuan XA, Han J, Xie J. Dimeric Manganese-Catalyzed Hydroarylation and Hydroalkenylation of Unsaturated Amides. Angew Chem Int Ed Engl 2020; 59:8430-8434. [PMID: 32129534 DOI: 10.1002/anie.201916305] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/13/2020] [Indexed: 02/04/2023]
Abstract
An unprecedented Mn(I)-catalyzed selective hydroarylation and hydroalkenylation of unsaturated amides with commercially available organic boronic acids is reported. Alkenyl boronic acids have been successfully employed for the first time in Mn(I)-catalyzed carbon-carbon bond formation. A wide array of β-alkenylated amide products can be obtained in moderate to good yields, which offers practical access to five- and six-membered lactams. This protocol has predictable regio- and chemoselectivity, excellent functional group compatibility and ease of operation in air, representing a significant step-forward towards manganese-catalyzed C-C coupling.
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Affiliation(s)
- Dongping Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jie Dong
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Wenjing Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Jian Han
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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29
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Wang D, Dong J, Fan W, Yuan X, Han J, Xie J. Dimeric Manganese‐Catalyzed Hydroarylation and Hydroalkenylation of Unsaturated Amides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Dongping Wang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jie Dong
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Wenjing Fan
- School of Chemistry and Chemical Engineering Qufu Normal University Qufu 273165 China
| | - Xiang‐Ai Yuan
- School of Chemistry and Chemical Engineering Qufu Normal University Qufu 273165 China
| | - Jian Han
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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30
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Beigi-Somar V, Homami SS, Ghazanfarpour-Darjani M, Monzavi A. A catalytic multicomponent protocol to dihydropyridine-3-carboxylate from terminal alkynes, isocyanates, and malonates. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02548-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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31
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Banerjee S, Vivek Kumar S, Punniyamurthy T. Site-Selective Rh-Catalyzed C-7 and C-6 Dual C–H Functionalization of Indolines: Synthesis of Functionalized Pyrrolocarbazoles. J Org Chem 2020; 85:2793-2805. [DOI: 10.1021/acs.joc.9b03180] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sonbidya Banerjee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Sundaravel Vivek Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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32
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Cembellín S, Dalton T, Pinkert T, Schäfers F, Glorius F. Highly Selective Synthesis of 1,3-Enynes, Pyrroles, and Furans by Manganese(I)-Catalyzed C–H Activation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03965] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sara Cembellín
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Toryn Dalton
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Tobias Pinkert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Felix Schäfers
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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33
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Kumar A, Muniraj N, Prabhu KR. Manganese‐Catalysed C−H Activation: A Regioselective C−H Alkenylation of Indoles and other (hetero)aromatics with 4‐Hydroxy‐2‐Alkynoates Leading to Concomitant Lactonization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900678] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anil Kumar
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012 Karnataka India
| | - Nachimuthu Muniraj
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012 Karnataka India
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34
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Lafzi F, Kilic H, Saracoglu N. Protocols for the Syntheses of 2,2'-Bis(indolyl)arylmethanes, 2-Benzylated Indoles, and 5,7-Dihydroindolo[2,3- b]carbazoles. J Org Chem 2019; 84:12120-12130. [PMID: 31454241 DOI: 10.1021/acs.joc.9b02124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electrophilic substitution reaction of 4,7-dihydroindole with aryl-aldehydes as an electrophilic partner followed by an oxidation step to deliver 2,2'-bis(indolyl)arylmethanes was studied for the first time. The reaction afforded regioselectivity at the 2,2'-positions of indole in an operationally simple and inexpensive procedure with a variety of substrates. To the best of our knowledge, this is the first set of examples of 2,2'-bis(indolyl)arylmethanes obtained in a substituent-free manner. A facile method from dipyrromethanes to the corresponding 2-benzylindoles was also reported. In addition, 2,2'-bis(indolyl)arylmethanes were converted to 5,7-dihydroindolo[2,3-b]carbazoles.
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Affiliation(s)
- Ferruh Lafzi
- Department of Chemistry, Faculty of Sciences , Atatürk University , Erzurum 25240 , Turkey
| | - Haydar Kilic
- Department of Chemistry, Faculty of Sciences , Atatürk University , Erzurum 25240 , Turkey.,Oltu Vocational Training School , Atatürk University , Erzurum 25400 , Turkey
| | - Nurullah Saracoglu
- Department of Chemistry, Faculty of Sciences , Atatürk University , Erzurum 25240 , Turkey
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35
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Sun BB, Hu QX, Hu JM, Yu JQ, Jia J, Wang XW. Asymmetric [4+2] cycloaddition of azlactones with dipolar copper–allenylidene intermediates for chiral 3,4-dhydroquinolin-2-one derivatives. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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36
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Xu Y, Zheng G, Kong L, Li X. Manganese(I)-Catalyzed Synthesis of Fused Eight- and Four-Membered Carbocycles via C–H Activation and Pericyclic Reactions. Org Lett 2019; 21:3402-3406. [DOI: 10.1021/acs.orglett.9b01139] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youwei Xu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangfan Zheng
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Lingheng Kong
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
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37
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Jia T, Wang C. Manganese‐Catalyzed
ortho‐
Alkenylation of Aromatic Amidines with Alkynes via C−H Activation. ChemCatChem 2019. [DOI: 10.1002/cctc.201900387] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Teng Jia
- Beijing National Laboratory for Molecular Sciences, CAS key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences, CAS key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Physical Science LaboratoryHuairou National Comprehensive Science Center Beijing 101400 China
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38
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Zheng G, Sun J, Xu Y, Zhai S, Li X. Mn‐Catalyzed Dehydrocyanative Transannulation of Heteroarenes and Propargyl Carbonates through C−H Activation: Beyond the Permanent Directing Effects of Pyridines/Pyrimidines. Angew Chem Int Ed Engl 2019; 58:5090-5094. [DOI: 10.1002/anie.201900166] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Youwei Xu
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Shuailei Zhai
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
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39
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Hammarback LA, Robinson A, Lynam JM, Fairlamb IJS. Delineating the critical role of acid additives in Mn-catalysed C-H bond functionalisation processes. Chem Commun (Camb) 2019; 55:3211-3214. [PMID: 30806417 DOI: 10.1039/c9cc00257j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Addition of co-catalytic Cy2NH to Mn-catalysed C-H bond activation reactions suggests that the conjugate acid, Cy2NH2X, influences catalysis. Here, acids are shown to positively influence C-H bond alkenylation catalysis involving alkynes. For certain types of alkynes an acid additive is critical to catalysis. In stark contrast, acids retard catalysis involving acrylates. [Cy2NH2]X salts also play a key role in thwarting catalyst degradation to manganese clusters. Our findings enable unreactive substrates to be alkenylated.
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40
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Zheng G, Sun J, Xu Y, Zhai S, Li X. Mn‐Catalyzed Dehydrocyanative Transannulation of Heteroarenes and Propargyl Carbonates through C−H Activation: Beyond the Permanent Directing Effects of Pyridines/Pyrimidines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Youwei Xu
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
| | - Shuailei Zhai
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
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41
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De PB, Banerjee S, Pradhan S, Punniyamurthy T. Ru(ii)-Catalyzed C7-acyloxylation of indolines with carboxylic acids. Org Biomol Chem 2019; 16:5889-5898. [PMID: 30070289 DOI: 10.1039/c8ob01603h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ruthenium(ii)-catalyzed site-selective C7-acyloxylation of indolines with carboxylic acids is presented. The substrate scope and functional group tolerance are important practical features. The kinetic isotope studies suggest that C-H bond activation may be the rate-determining step.
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Affiliation(s)
- Pinaki Bhusan De
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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42
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Sun J, Bai D, Wang P, Wang K, Zheng G, Li X. Chemodivergent Oxidative Annulation of Benzamides and Enynes via 1,4-Rhodium Migration. Org Lett 2019; 21:1789-1793. [DOI: 10.1021/acs.orglett.9b00363] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jiaqiong Sun
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Dachang Bai
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Peiyuan Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Kuan Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Guangfan Zheng
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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43
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Punna N, Harada K, Zhou J, Shibata N. Pd-Catalyzed Decarboxylative Cyclization of Trifluoromethyl Vinyl Benzoxazinanones with Sulfur Ylides: Access to Trifluoromethyl Dihydroquinolines. Org Lett 2019; 21:1515-1520. [DOI: 10.1021/acs.orglett.9b00330] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nagender Punna
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Kyosuke Harada
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Jun Zhou
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 688 Yingbin Avenue, 321004 Jinhua, China
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44
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Ma X, Dang Y. Mechanistic Study of Manganese-Catalyzed C-H Bond Functionalizations: Factors Controlling the Competition between Hydroarylation and Cyclization. J Org Chem 2019; 84:1916-1924. [PMID: 30633518 DOI: 10.1021/acs.joc.8b02914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Mn-catalyzed C-H functionalization of indoles with allenes developed by Rueping and co-workers provides an efficient access to various alkenylated indoles and substituted pyrroloindolones. Herein, we present a systematic computational study to understand the mechanism and origins of substrate-controlled chemoselectivity of the C-H functionalization reactions (hydroarylation vs cascade cyclization). For the disubstituted allene system, the computed mechanism consists of three main phases: C-H activation, allene migratory insertion, and protonation giving the hydroarylation product. All of these steps are feasible, in agreement with the good yield under the mild experimental conditions. On the other hand, for the trisubstituted allene system, hydroarylation is suppressed due to the higher energy barrier for the protonation step arising from the disfavored ligand-substrate steric repulsions between the carboxide ligand and the substituent group in the allene substrate; our computational results demonstrate that, after the allene insertion leading to a seven-membered cyclometalated intermediate, it undergoes a reaction pathway involving sequential "ketone to enol" isomerization, a 1,4-heteroaryl shift, and β-methoxyl elimination giving the pyrroloindolone product. In contrast, this isomerization → heteroaryl shift → β-methoxyl elimination process is unworkable in the disubstituted allene system, because the protonation step takes place more favorably owing to the lack of ligand-substrate steric interactions. The findings taken together give an insight into the role of the ligand-substrate interactions in directing the competitive pathways and differentiating the energies of key transition states by steric repulsions.
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Affiliation(s)
- Xiaoxiao Ma
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences , Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China.,School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Yanfeng Dang
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences , Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China
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45
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Hammarback LA, Robinson A, Lynam JM, Fairlamb IJS. Mechanistic Insight into Catalytic Redox-Neutral C-H Bond Activation Involving Manganese(I) Carbonyls: Catalyst Activation, Turnover, and Deactivation Pathways Reveal an Intricate Network of Steps. J Am Chem Soc 2019; 141:2316-2328. [PMID: 30698423 DOI: 10.1021/jacs.8b09095] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Manganese(I) carbonyl-catalyzed C-H bond functionalization of 2-phenylpyridine and related compounds containing suitable metal directing groups has recently emerged as a potentially useful synthetic methodology for the introduction of various groups to the ortho position of a benzene ring. Preliminary mechanistic studies have highlighted that these reactions could proceed via numerous different species and steps and, moreover, potentially different catalytic cycles. The primary requirement for typically 10 mol % catalyst, oftentimes the ubiquitous precursor catalyst, BrMn(CO)5, has not yet been questioned nor significantly improved upon, suggesting catalytic deactivation may be a serious issue to be understood and resolved. Several critical questions are further raised by the species responsible for providing a source of protons in the protonation of vinyl-manganese(I) carbonyl intermediates. In this study, using a combination of experimental and theoretical methods, we provide comprehensive answers to the key mechanistic questions concerning the Mn(I) carbonyl-catalyzed C-H bond functionalization of 2-phenylpyridine and related compounds. Our results enable the explanation of alkyne substrate dependencies, i.e., internal versus terminal alkynes. We found that there are different catalyst activation pathways for BrMn(CO)5, e.g., terminal alkynes lead to the generation of MnI-acetylide species, whose formation is reminiscent of CuI-acetylide species proposed to be of critical importance in Sonogashira cross-coupling processes. We have unequivocally established that alkyne, 2-phenylpyridine, and water can facilitate hydrogen transfer in the protonation step, leading to the liberation of protonated alkene products.
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Affiliation(s)
- L Anders Hammarback
- Department of Chemistry , University of York , York , North Yorkshire YO10 5DD , United Kingdom
| | - Alan Robinson
- Syngenta Crop Protection AG , Breitenloh 5 , Münchwilen 4333 , Switzerland
| | - Jason M Lynam
- Department of Chemistry , University of York , York , North Yorkshire YO10 5DD , United Kingdom
| | - Ian J S Fairlamb
- Department of Chemistry , University of York , York , North Yorkshire YO10 5DD , United Kingdom
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46
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Affiliation(s)
- Yuanyuan Hu
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function CAS Research/Education Center for Excellence in Molecular Sciences; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
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47
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Banerjee S, De PB, Pradhan S, Shah TA, Punniyamurthy T. RuII
-Catalysed Regioselective C-N
Bond Formation of Indolines and Carbazole with Acyl Azides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801829] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sonbidya Banerjee
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Pinaki Bhusan De
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Sourav Pradhan
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Tariq A. Shah
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
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48
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Wang C, Yang J, Meng X, Sun Y, Man X, Li J, Sun F. Manganese(ii)-catalysed dehydrogenative annulation involving C–C bond formation: highly regioselective synthesis of quinolines. Dalton Trans 2019; 48:4474-4478. [PMID: 30860245 DOI: 10.1039/c9dt00647h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An inexpensive nontoxic manganese(ii)-catalysed dehydrogenative annulation was developed for C–C bond formation.
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Affiliation(s)
- Chengniu Wang
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Jinfei Yang
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Xiao Meng
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Yufeng Sun
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Xuyan Man
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Jinxia Li
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
| | - Fei Sun
- Medical school
- Institute of Reproductive Medicine
- Nantong University
- Nantong 226019
- China
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49
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Yuan WK, Sun SZ, Zhang LB, Wen LR, Li M. A concise construction of 4-alkynylquinazolines via [4 + 2] annulation of 4-alkynylbenzoxazinanones with acylhydroxamates under transition-metal-free conditions. Org Chem Front 2019. [DOI: 10.1039/c9qo00668k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise and highly efficient method for the construction of valuable 4-alkynylquinazolines under transition-metal-free conditions was developed via [4 + 2] annulation of 4-alkynylbenzoxazinanones with acylhydroxamates in good to excellent yields.
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Affiliation(s)
- Wen-Kui Yuan
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Sheng-Zheng Sun
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Lin-Bao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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50
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1425] [Impact Index Per Article: 237.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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