1
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Deng YH, Zhang CB, Sun JJ, Xu WL, Fu JY. A regioselective [3 + 2] cycloaddition reaction of 2-benzylidene-1-indenones with functional olefins to access indanone-fused 2D/3D skeletons. Org Biomol Chem 2023; 21:4388-4392. [PMID: 37161754 DOI: 10.1039/d3ob00559c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The regioselective [3 + 2] cycloaddition reaction of 2-benzylidene-1-indenones with functional olefins was established with DABCO as a base under mild conditions. Using this approach, a series of diversely substituted indanone-fused cyclopentane polycycles with highly crowded multiple substituents were synthesized in high yields.
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Affiliation(s)
- Yi-Hang Deng
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Chuan-Bao Zhang
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
- School of Pharmacy, Zhengzhou Railway Vocational & Technical College, Zhengzhou 450052, China
| | - Jun-Jie Sun
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Wen-Li Xu
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Ji-Ya Fu
- Henan Engineering Research Center of Functional Materials and Catalytic Reaction, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
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2
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Balasubramani A, Mehta G. One-Pot Synthesis of Functionally Enriched Benzo[ b]fluorenones: An Eco-Friendly Embedment of Diverse 1-Indanones into o-Bis-Ynones. J Org Chem 2023; 88:933-943. [PMID: 36602529 DOI: 10.1021/acs.joc.2c02330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An efficient, base-promoted, one-pot, metal-free, open-flask synthesis of diverse, functionally enriched benzo[b]fluoren-11-ones has been discovered, and wide applicability of this exceptionally simple protocol with green flavors has been scoped. This synthesis proceeds via an unanticipated, tandem, double-aldol condensation between in situ-generated 1-indanone dianions and o-bis-ynones to furnish benzo[b]fluoren-11-ones harboring as many as six variegated substituents on their tetracyclic framework. This methodology has also been amplified to access heterocyclic analogues 2- and 4-azabenzo[b]fluorenones of benzo[b]fluoren-11-ones and extended to mixed linear-angular annulated pentacyclic dibenzo[a,h]fluoren-13-one.
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Affiliation(s)
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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3
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Pounder A, Neufeld E, Myler P, Tam W. Transition-metal-catalyzed domino reactions of strained bicyclic alkenes. Beilstein J Org Chem 2023; 19:487-540. [PMID: 37153643 PMCID: PMC10155623 DOI: 10.3762/bjoc.19.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/13/2023] [Indexed: 05/10/2023] Open
Abstract
This review presents a comprehensive overview of transition-metal-catalyzed domino reactions of strained bicyclic alkenes, including both homo- and heterobicyclic alkenes. These compounds are important synthons in organic synthesis, providing an important platform for the construction of biologically/medicinally significant compounds which bear multiple stereocenters. The review has been divided according to the metal used in the reaction. An overview of the substrate scope, reaction conditions, and their potential applications in organic synthesis is discussed. A comprehensive outlook on the reactivity paradigms of homo- and heterobicyclic alkenes is discussed and should shed light on future directions for further development in this field.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Eric Neufeld
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Peter Myler
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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4
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Li X, Pan X, Qi Z, Li X. Palladium-Catalyzed [3 + 2] Annulation of Aryl Halides with 7-Oxa- and 7-Azabenzonorbornadienes via C(sp 2 or sp 3)–H Activation. Org Lett 2022; 24:8964-8968. [DOI: 10.1021/acs.orglett.2c03422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Xiaojiao Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an, Shaanxi 710062, China
| | - Xianting Pan
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an, Shaanxi 710062, China
| | - Zisong Qi
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an, Shaanxi 710062, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an, Shaanxi 710062, China
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University, Qingdao 266237, China
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5
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Zhai S, Qiu S, Yang S, Gao X, Feng X, Yun C, Han N, Niu Y, Wang J, Zhai H. Facile access to β-hydroxyl ketones via a cobalt-catalyzed ring-opening/hydroxylation cascade of cyclopropanols. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Dey A, Singh A, Volla CMR. Cobalt-catalyzed highly diastereoselective [3 + 2] carboannulation reactions: facile access to substituted indane derivatives. Chem Commun (Camb) 2022; 58:1386-1389. [PMID: 34989718 DOI: 10.1039/d1cc05245d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient oxidative [3 + 2] annulation reaction involving aryl hydrazones and heterobicyclic alkenes has been realized with inexpensive and earth-abundant cobalt salts under aerobic conditions. The reaction proceeds via directing-group-assisted C-H activation and exo-selective migratory insertion, followed by the intramolecular nucleophilic attack of the alkylcobalt(III) species onto the imine with high anti-diastereoselectivity to provide complex indane derivatives. The generation of three contiguous stereogenic centers within the indanyl unit and the avoidance of the use of stoichiometric amounts of metal oxidants make this transformation more valuable and appealing.
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Affiliation(s)
- Arnab Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Anurag Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Chandra M R Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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7
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Li Z, Jiang Y, Li Y, Zhang H, Li H, Yang S. Advances in Diels-Alder/aromatization of biomass furan derivatives towards renewable aromatic hydrocarbons. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02122b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effective upgrading of renewable resources into high value-added chemicals is of great significance to achieve the sustainable economic development, as well as the implementation of carbon neutral technologies practically....
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8
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Large B, Prim D. On the Shape and Synthesis of Extended Fluorenones: Recent Advances and Upcoming Challenges. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Benjamin Large
- University of York Department of Chemistry YO10 5DD York United Kingdom
| | - Damien Prim
- ILV Université Paris-Saclay, UVSQ, CNRS 78035 Versailles France
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9
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Zhai H, Liu M, Wang C, Qiu S, Wei J, Yang H, Wu Y. Cobalt-Catalyzed 2-(1-Methylhydrazinyl)pyridine-Assisted C-H Alkylation/Annulation: Mechanistic Insights and Rapid Access to Cyclopenta[ c]isoquinolinone Derivatives. J Org Chem 2021; 86:14915-14927. [PMID: 34570982 DOI: 10.1021/acs.joc.1c01658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We have developed cobalt-catalyzed, bidentate 2-(1-methylhydrazinyl)pyridine (MHP)-directed C(sp2)-H alkylation/annulation of benzoic hydrazides with various alkenes. Notably, diverse cyclopenta[c]isoquinolinones and dihydroisoquinolinones were obtained via this functional group-tolerant protocol. The reaction can be performed on a gram scale while maintaining an excellent yield, and the directing group can be removed efficiently under mild conditions. Furthermore, density-functional theory (DFT) calculations provide an incisive understanding of the observed regioselectivities for different olefins.
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Affiliation(s)
- Hongbin Zhai
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Miao Liu
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Chao Wang
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Shuxian Qiu
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Department of Chemistry, Guangdong University of Education, Guangzhou 510303, China
| | - Jian Wei
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Hongjian Yang
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Yundong Wu
- The Key Laboratory of Chemical Genomics and Lab of Computational Chemistry and Drug Design, The State Key Laboratory of Chemical Oncogenomics, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518055, China
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10
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Lukasevics L, Cizikovs A, Grigorjeva L. C-H bond functionalization by high-valent cobalt catalysis: current progress, challenges and future perspectives. Chem Commun (Camb) 2021; 57:10827-10841. [PMID: 34570134 DOI: 10.1039/d1cc04382j] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Over the last decade, high-valent cobalt catalysis has earned a place in the spotlight as a valuable tool for C-H activation and functionalization. Since the discovery of its unique reactivity, more and more attention has been directed towards the utilization of cobalt as an alternative to noble metal catalysts. In particular, Cp*Co(III) complexes, as well as simple Co(II) and Co(III) salts in combination with bidentate chelation assistance, have been extensively used for the development of novel transformations. In this review, we have demonstrated the existing trends in the C-H functionalization methodology using high-valent cobalt catalysis and highlighted the main challenges to overcome, as well as perspective directions, which need to be further developed in the future.
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Affiliation(s)
- Lukass Lukasevics
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
| | - Aleksandrs Cizikovs
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
| | - Liene Grigorjeva
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
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11
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Wang Y, Jia D, Zeng J, Liu Y, Bu X, Yang X. Benzocarbazole Synthesis via Visible-Light-Accelerated Rh(III)-Catalyzed C-H Annulation of Aromatic Amines with Bicyclic Alkenes. Org Lett 2021; 23:7740-7745. [PMID: 34597511 DOI: 10.1021/acs.orglett.1c02709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A visible-light-accelerated Rh(III)-catalyzed C-H annulation of aromatic amines with bicyclic alkenes for the synthesis of benzocarbazole derivatives was developed. In this approach, with the cooperation of rhodium catalysis and visible-light irradiation, various aromatic amines reacted with oxabicyclic alkenes and azabicyclic alkenes smoothly at room temperature, delivering the corresponding bridged oxa or aza tetrahydro benzocarbazoles in good to excellent yields. Moreover, a series of benzo[b]carbazoles were synthesized conveniently through further aromatization in one pot. The potential of this method was demonstrated via directing-group removal, derivatization, a scale-up reaction, and fluorescence investigations.
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Affiliation(s)
- Yichun Wang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People's Republic of China
| | - Deyang Jia
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People's Republic of China
| | - Jing Zeng
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People's Republic of China
| | - Yuming Liu
- Sichuan Environmental Protection Engineering Co., Ltd., Chengdu 621000, People's Republic of China
| | - Xiubin Bu
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People's Republic of China
| | - Xiaobo Yang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, People's Republic of China.,Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
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12
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Wei J, Shao X, Zhao H, Yang H, Qiu S, Zhai H. Palladium-Catalyzed Arylation of C(sp 2)-H Bonds with 2-(1-Methylhydrazinyl)pyridine as the Bidentate Directing Group. ACS OMEGA 2021; 6:25151-25161. [PMID: 34632174 PMCID: PMC8495716 DOI: 10.1021/acsomega.1c02481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Palladium-catalyzed C(sp2)-H arylation of ortho C-H bonds involving 2-(1-methylhydrazinyl)pyridine (MHP) as the directing group has been investigated. The reaction proceeds smoothly under an air atmosphere to generate biaryl derivatives in an environmentally friendly manner while tolerating a wide range of functional groups. Notably, the directing group present in the product could be easily removed under mild reductive conditions.
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Affiliation(s)
- Jian Wei
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Xiaoru Shao
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Hua Zhao
- Institute
of Drug Discovery Technology, QianXuesen Collaborative Research Center
of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Hongjian Yang
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Shuxian Qiu
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
| | - Hongbin Zhai
- The
State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial
Key Laboratory of Nano-Micro Materials Research, School of Chemical
Biology and Biotechnology, Shenzhen Graduate
School of Peking University, Shenzhen 518055, China
- Institute
of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
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13
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Cizikovs A, Lukasevics L, Grigorjeva L. Cobalt-catalyzed C–H bond functionalization using traceless directing group. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Zhao H, Wang T, Qing Z, Zhai H. Cobalt-catalyzed 2-(1-methylhydrazinyl)pyridine-assisted cyclization of thiophene-2-carbohydrazides with maleimides: efficient synthesis of thiophene-fused pyridones. Chem Commun (Camb) 2021; 56:5524-5527. [PMID: 32296787 DOI: 10.1039/d0cc01582b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A cobalt-catalyzed direct C-H/N-H functionalization of thiophene-2-carbohydrazides with maleimides by utilizing 2-(1-methylhydrazinyl)pyridine (MHP) as an easily removable bidentate directing group has been developed. This formal [4+2] cycloaddition has been achieved for the first time, and it provides an alternative and versatile approach to construct thiophene-fused pyridones using an inexpensive cobalt catalyst. The C-H/N-H activation cascade protocol showed a high efficiency and a broad substrate scope, and the products were obtained in good to excellent yields.
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Affiliation(s)
- Hua Zhao
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Taimin Wang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Zhineng Qing
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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15
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Mandal M, Sakthivel S, Balamurugan R. Brønsted/Lewis Acid-Promoted Site-Selective Intramolecular Cycloisomerizations of Aryl-Fused 1,6-Diyn-3-ones for Diversity-Oriented Synthesis of Benzo-Fused Fluorenes and Fluorenones and Naphthyl Ketones. J Org Chem 2020; 86:333-351. [PMID: 33253563 DOI: 10.1021/acs.joc.0c02131] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a facile diversity-oriented approach to access functionalized benzo[a]fluorenes, benzo[b]fluorenones, and naphthyl ketones has been demonstrated via site-selective intramolecular cyclization of aryl-fused 1,6-diyn-3-ones. Synthesis of benzo[a]fluorenes and naphthyl ketones has been achieved selectively using TfOH and AgBF4, respectively, via in situ-formed acetals. Aryl-fused 1,6-diyn-3-ones undergo triflic acid-mediated intramolecular cyclization, leading to benzo[b]fluorenone derivatives via a radical intermediate as supported by EPR studies. Kinetic studies of these transformations have also been performed by UV-visible spectroscopic analysis to shed light on the reaction profile.
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Affiliation(s)
- Mou Mandal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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16
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Sakurai Y, Ogiwara Y, Sakai N. Palladium‐Catalyzed Annulation of Acyl Fluorides with Norbornene via Decarbonylation and CO Reinsertion. Chemistry 2020; 26:12972-12977. [DOI: 10.1002/chem.202001374] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/19/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Yuka Sakurai
- Department of Pure and Applied Chemistry Faculty of Science and Technology Tokyo University of Science Noda Chiba 278-8510 Japan
| | - Yohei Ogiwara
- Department of Pure and Applied Chemistry Faculty of Science and Technology Tokyo University of Science Noda Chiba 278-8510 Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry Faculty of Science and Technology Tokyo University of Science Noda Chiba 278-8510 Japan
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17
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Lin Q, Yao Y, Yang W, Tan Y, Chen S, Chen D, Yang D. Copper-catalyzed diastereoselective hydrothioetherification of oxa(aza)benzonorbornadienes. Org Biomol Chem 2020; 18:3575-3584. [PMID: 32347285 DOI: 10.1039/d0ob00659a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed hydrothioetherification of oxa(aza)bicyclic alkenes with potassium thioacetate and aryl or alkyl iodides to synthesize unsymmetrical thioethers has been developed. Notably, the reaction with complete diastereoselectivity went through a syn-selective addition process to give exo-adducts. In addition, this protocol exhibited high efficiency and good functional group tolerance to afford the target thioethers in moderate to good yields. Based on the results of mechanistic investigations, a plausible mechanism was proposed.
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Affiliation(s)
- Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, People's Republic of China.
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18
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Zhai S, Qiu S, Chen L, Niu Y, Yu Y, Yang B, Zhang B, Han C, Yang L, Zhai H. Synthesis of cyclobutane-fused oxygen-containing tricyclic framework via thermally promoted intramolecular cycloaddition of cyclohexadienone-tethered allenes. Chem Commun (Camb) 2020; 56:3405-3408. [PMID: 32091059 DOI: 10.1039/d0cc00061b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a unique approach for the thermally promoted cycloaddition of cyclohexadienone-tethered allenes to form a versatile cyclobutane-fused oxygen-containing tricyclic framework in an environmentally friendly and atomic economic fashion with high regioselectivity. The reaction encompasses a broad substrate scope and functional group tolerance of cyclohexadienone moieties. Moreover, the cycloaddition was also applicable to the late-stage functionalization of pharmaceutically relevant compounds.
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Affiliation(s)
- Shengxian Zhai
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China and The State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, Jiaozuo, Henan 454000, China
| | - Shuxian Qiu
- The State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and Department of Chemistry, Guangdong University of Education, Guangzhou 510303, China
| | - Lunjian Chen
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Coal Mine Safety of Henan Province, Henan Polytechnic University, Jiaozuo, Henan 454000, China
| | - Yongsheng Niu
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Youzhu Yu
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Bo Yang
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Beining Zhang
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Chuchu Han
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Liguo Yang
- College of Chemistry & Environmental Engineering, Anyang Institute of Technology, Anyang, Henan 455000, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Shenzhen Engineering Laboratory of Nano Drug Slow-Release, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China. and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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19
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Chen M, Doba T, Sato T, Razumkov H, Ilies L, Shang R, Nakamura E. Chromium(III)-Catalyzed C(sp 2)-H Alkynylation, Allylation, and Naphthalenation of Secondary Amides with Trimethylaluminum as Base. J Am Chem Soc 2020; 142:4883-4891. [PMID: 32068410 DOI: 10.1021/jacs.0c00127] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Among base metals used for C-H activation reactions, chromium(III) is rather unexplored despite its natural abundance and low toxicity. We report herein chromium(III)-catalyzed C(sp2)-H functionalization of an ortho-position of aromatic and α,β-unsaturated secondary amides using readily available AlMe3 as a base and using bromoalkynes, allyl bromide, and 1,4-dihydro-1,4-epoxynaphthalene as electrophiles. This redox-neutral reaction taking place at 70-90 °C, requires as low as 1-2 mol % of CrCl3 or Cr(acac)3 as a catalyst without any added ligand, and tolerates functional groups such as aryl iodide, boronate, and thiophene groups. Stoichiometric and kinetics studies as well as kinetic isotope effects suggest that the catalytic cycle consists of a series of thermally stable but reactive intermediates bearing two molecules of the amide substrate on one chromium atom and also that one of these chromate(III) complexes takes part in the alkynylation, allylation, and naphthalenation reactions. The proposed mechanism accounts for the effective suppression of methyl group delivery from AlMe3 for ortho-C-H methylation.
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Affiliation(s)
- Mengqing Chen
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takahiro Doba
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takenari Sato
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hlib Razumkov
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Laurean Ilies
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Rui Shang
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiichi Nakamura
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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20
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Li H, Guo W, Jiang J, Wang J. Rhodium(III)‐Catalyzed Directed C−H Bond Naphthylation with 7‐Azabenzonorbornadiene as the Naphthylating Reagent. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Honghe Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Weicong Guo
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen University Guangzhou 510275 China
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21
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Vivek Kumar S, Banerjee S, Punniyamurthy T. Transition metal-catalyzed coupling of heterocyclic alkenes via C–H functionalization: recent trends and applications. Org Chem Front 2020. [DOI: 10.1039/d0qo00279h] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heterocyclic alkenes and their derivatives are an important class of reactive feedstock and valuable synthons. This review highlights the transition-metal-catalyzed coupling of heterocyclic alkenes via a C–H functionalization strategy.
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22
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Muniraj N, Kumar A, Prabhu KR. Cobalt‐Catalyzed Regioselective [4+2] Annulation/Lactonization of Benzamides with 4‐Hydroxy‐2‐Alkynoates under Aerobic Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901119] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Nachimuthu Muniraj
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012, Karnataka India
| | - Anil Kumar
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012, Karnataka India
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23
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Wang P, Xu Y, Sun J, Li X. Rhodium(III)-Catalyzed Chemo-divergent Couplings of Sulfoxonium Ylides with Oxa/azabicyclic Olefins. Org Lett 2019; 21:8459-8463. [DOI: 10.1021/acs.orglett.9b03226] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peiyuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Youwei Xu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116923, China
| | - Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116923, China
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24
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Liu Z, Zhang W, Guo S, Zhu J. Spiro[indene-1,4'-oxa-zolidinones] Synthesis via Rh(III)-Catalyzed Coupling of 4-Phenyl-1,3-oxazol-2(3 H)-ones with Alkynes: A Redox-Neutral Approach. J Org Chem 2019; 84:11945-11957. [PMID: 31436097 DOI: 10.1021/acs.joc.9b01804] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transition-metal-catalyzed C-H activation synthesis of heterocyclic spiro[4,4]nonanes has persistently witnessed the use of additional stoichiometric transition-metal oxidant when employing C═C bond as the spiro ring closure site. Herein, we have addressed the issue by reporting a redox-neutral strategy for spiro[indene-1,4'-oxa-zolidinones] synthesis via Rh(III)-catalyzed coupling of 4-phenyl-1,3-oxazol-2(3H)-ones with alkynes. The synthesis features a broad substrate scope and high regiospecificity.
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Affiliation(s)
- Zhongsu Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures , Nanjing University , Nanjing 210023 , China
| | - Wenjing Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures , Nanjing University , Nanjing 210023 , China
| | - Shan Guo
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures , Nanjing University , Nanjing 210023 , China
| | - Jin Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures , Nanjing University , Nanjing 210023 , China
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25
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Lin Q, Yang W, Yao Y, Chen S, Tan Y, Chen D, Yang D. Copper-Catalyzed Diastereoselective 1,2-Difunctionalization of Oxabenzonorbornadienes Leading to β-Thiocyanato Thioethers. Org Lett 2019; 21:7244-7247. [DOI: 10.1021/acs.orglett.9b02452] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
- College of Marine Sciences, Beibu Gulf University, Qinzhou 535011, People’s Republic of China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Shuqi Chen
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yun Tan
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Donghan Chen
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, College of Chemistry, South China Normal University, Guangzhou 510006, People’s Republic of China
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