1
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Hong K, Liu M, Qian L, Bao M, Chen G, Jiang X, Huang J, Xu X. Catalytic [4+2]- and [4+4]-cycloaddition using furan-fused cyclobutanone as a privileged C4 synthon. Nat Commun 2024; 15:5407. [PMID: 38926359 DOI: 10.1038/s41467-024-49664-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Cycloaddition reactions play a pivotal role in synthetic chemistry for the direct assembly of cyclic architectures. However, hurdles remain for extending the C4 synthon to construct diverse heterocycles via programmable [4+n]-cycloaddition. Here we report an atom-economic and modular intermolecular cycloaddition using furan-fused cyclobutanones (FCBs) as a versatile C4 synthon. In contrast to the well-documented cycloaddition of benzocyclobutenones, this is a complementary version using FCB as a C4 reagent. It involves a C-C bond activation and cycloaddition sequence, including a Rh-catalyzed enantioselective [4 + 2]-cycloaddition with imines and an Au-catalyzed diastereoselective [4 + 4]-cycloaddition with anthranils. The obtained furan-fused lactams, which are pivotal motifs that present in many natural products, bioactive molecules, and materials, are inaccessible or difficult to prepare by other methods. Preliminary antitumor activity study indicates that 6e and 6 f exhibit high anticancer potency against colon cancer cells (HCT-116, IC50 = 0.50 ± 0.05 μM) and esophageal squamous cell carcinoma cells (KYSE-520, IC50 = 0.89 ± 0.13 μM), respectively.
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Affiliation(s)
- Kemiao Hong
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Mengting Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Lixin Qian
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Ming Bao
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Gang Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Xinyu Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Jingjing Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Xinfang Xu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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2
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Wang Y, Ma P, Ma N, Wang J. Ligand-Controlled Nickel-Catalyzed Reactions of Benzocyclobutenones with Alkynyltrifluoroborates: Diverse Construction of Polysubstituted Naphthols. Org Lett 2023; 25:3527-3532. [PMID: 37144914 DOI: 10.1021/acs.orglett.3c01091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Ligand-controlled nickel-catalyzed selective cleavage of the C1-C2 or C1-C8 bond of benzocyclobutenones (BCBs) is reported. The delicate selection of dpppe or PMe3 as the ligand led to predictably divergent synthesis of a wide range of 1-naphthols and 2-naphthols without C2 and C3 substituents, respectively, from BCBs and potassium alkynyltrifluoroborate, and the increase in the amount of PMe3 resulted in tandem reaction of 2 equiv of BCB with the borate to afford 3,4,5-trisubstituted 2-naphthols. The fabulous ligand effect resulted in the facile and unique construction of multisubstituted naphthols with well-controlled regioselectivity and a high degree of structural diversity.
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Affiliation(s)
- Yuhang Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Peng Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Ning Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianhui Wang
- Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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3
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Li X, Hu L, Ma S, Yu H, Lu G, Xu T. Divergent Rh Catalysis: Asymmetric Dearomatization Versus C–H Activation Initiated by C–C Activation. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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4
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Cao J, Xu LW. Palladium- and nickel-catalyzed cascade enantioselective ring-opening/coupling reactions of cyclobutanones. Chem Commun (Camb) 2023; 59:3373-3382. [PMID: 36806356 DOI: 10.1039/d3cc00205e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The chemistry of small ring compounds is an intriguing subject in organic chemistry. As the smallest stable cyclic aliphatic ketones, cyclobutanones have garnered tremendous attention owing to their intrinsic high reactivity such as transition-metal catalyzed C-C bond cleavage. In this context, transition-metal catalyzed formal cycloaddition of cyclobutanones via a "cut and sew" strategy has gained marvelous advances. In contrast, an alternative reaction paradigm, i.e., transition-metal catalyzed ring-opening reactions of cyclobutanones, is still underdeveloped. This feature article aims to summarize our efforts in developing enantioselective palladium-catalyzed ring-opening/coupling reactions and recently emerging nickel-catalyzed ring-opening/reductive coupling reactions of cyclobutanones with a tethered aryl halide. The possible mechanisms are briefly showcased and the advantages and limitations of each strategy as well as their synthetic applications in the synthesis of natural products or bioactive compounds are presented.
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Affiliation(s)
- Jian Cao
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Li-Wen Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China. .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute and Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Hangzhou, P. R. China
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5
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Xue Y, Dong G. Deconstructive Synthesis of Bridged and Fused Rings via Transition-Metal-Catalyzed "Cut-and-Sew" Reactions of Benzocyclobutenones and Cyclobutanones. Acc Chem Res 2022; 55:2341-2354. [PMID: 35901263 PMCID: PMC9386905 DOI: 10.1021/acs.accounts.2c00400] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Bridged and fused rings are commonly found in biologically important molecules. Current tactics to construct these ring systems are primarily based on stepwise ring formation (i.e., making one ring first followed by making another) and cycloaddition reactions (e.g., Diels-Alder reaction). To seek a complementary and perhaps more unified ring-forming approach, a deconstructive strategy based on C-C bond activation of cyclic ketones has been conceived. The named "cut-and-sew" reaction uses cyclic ketones with a tethered unsaturated moiety as substrates, which involves oxidative addition of a transition metal into the ketone C-C bond followed by intramolecular insertion of the unsaturated unit. This strategy has proved successful to access diverse ring scaffolds that are nontrivial to construct otherwise.This Account offers a concise summary of our laboratory's systematic efforts in developing transition metal-catalyzed cut-and-sew reactions for the synthesis of bridged and fused rings over the past 10 years. In particular, we will focus on the reactions using readily available benzocyclobutenones and cyclobutanones. To date, the scope of the cut-and-sew reactions has been greatly expanded. First, diverse unsaturated moieties can serve as suitable coupling partners, such as alkenyl, alkynyl, allenyl, carbonyl, and iminyl groups. Second, a variety of reaction modes have been uncovered. In this account, (4 + 2), (4 + 2 - 1), and (4 + 1) cycloadditions that lead to a range of bridged or fused scaffolds will be summarized. Third, enantioselective transformations have been realized to efficiently construct chiral scaffolds, which are enabled by two strategies: enantio-determining migratory insertion and desymmetrization of cyclobutanones. Fourth, the synthetic applications have been demonstrated in streamlined total syntheses of a number of complex natural products. Compared to conventional synthetic logics, the cut-and-sew reaction allows the development of new bond-disconnecting strategies. Thus, the syntheses of (-)-cycloclavine, (-)-thebainone A, penicibilaenes, and the proposed cycloinumakiol are discussed in more detail.In addition to the narrative of the development of the cut-and-sew chemistry, this Account also aims to provide core guiding foundations and inspirations toward broader deconstructive synthetic applications through C-C bond cleavage. It is anticipated that more classes of cyclic compounds could serve as the substrates beyond benzocyclobutenones and cyclobutanones, and more diverse unsaturated moieties could be coupled. It can also be envisaged that more innovative utilization of this cut-and-sew strategy in complex organic syntheses will be revealed in the near future.
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Affiliation(s)
- Yibin Xue
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States,E-mail:
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6
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Sokolova OO, Bower JF. An endo-Directing-Group Strategy Unlocks Enantioselective (3+1+2) Carbonylative Cycloadditions of Aminocyclopropanes. Angew Chem Int Ed Engl 2022; 61:e202205007. [PMID: 35611866 PMCID: PMC9401022 DOI: 10.1002/anie.202205007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Indexed: 12/18/2022]
Abstract
An endo-directing group strategy enables enantioselective (3+1+2) cycloadditions that are triggered by carbonylative C-C bond activation of cyclopropanes. These processes are rare examples of cycloadditions where C-C bond oxidative addition is enantiodetermining, and the first where this is achieved within the context of a multicomponent (higher order) reaction design.
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Affiliation(s)
- Olga O Sokolova
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
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7
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Wang B, Zhong H, Tian X. KO tBu-promoted Michael/aldol/ring-opening cascade reaction of cyclobutanones with chalcones. Chem Commun (Camb) 2022; 58:9222-9225. [PMID: 35899611 DOI: 10.1039/d2cc03007a] [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
An efficient Michael/aldol/ring-opening cascade reaction of cyclobutanones with chalcones has been developed. This protocol employs inexpensive potassium tert-butoxide (KOtBu) as a promoter and enables an efficient synthesis of densely substituted cyclohex-3-ene-carboxylic acids in high yields with high diastereoselectivities, which are difficult to prepare through conventional approaches. The significant advantages of this methodology include transition-metal-free conditions, readily available starting materials, wide scope and high atom economy.
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Affiliation(s)
- Biao Wang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China.
| | - Han Zhong
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China.
| | - Xu Tian
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China.
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8
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Sokolova OO, Bower J. An endo‐Directing‐Group Strategy Unlocks Enantioselective (3+1+2) Carbonylative Cycloadditions of Aminocyclopropanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - John Bower
- University of Liverpool School of Chemistry L69 3BX Liverpool UNITED KINGDOM
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9
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Yu X, Zhang Z, Dong G. Catalytic Enantioselective Synthesis of γ-Lactams with β-Quaternary Centers via Merging of C-C Activation and Sulfonyl Radical Migration. J Am Chem Soc 2022; 144:9222-9228. [PMID: 35580261 DOI: 10.1021/jacs.2c03746] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transition-metal-catalyzed C-C activation has become synthetically valuable; however, it rarely involves single-electron downstream processes. To expand the repertoire of C-C activation, here we describe the discovery of a Rh-catalyzed enantioselective C-C activation involving migration of a sulfonyl radical. This reaction directly transforms cyclobutanones containing a sulfonamide-tethered 1,3-diene moiety into γ-lactams containing a β-quaternary center with excellent enantioselectivity. This unusual process involves cleavage of C-C and N-S bonds and subsequent formation of C-N and C-S bonds. The reaction also exhibits broad functional group tolerance and a good substrate scope. A combined experimental and computational mechanistic study suggested that the reaction goes through a Rh(I)-mediated oxidative addition into the cyclobutanone C-C bond followed by a Rh(III)-triggered N-S bond homolysis and sulfonyl radical migration.
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Affiliation(s)
- Xuan Yu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Zining Zhang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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10
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Zeng QQ, Wang YQ, Cheng L, Wang BQ, Hu P, Song F. Regiocontrolled Annulation of Benzocyclobutenols with Alkynes. Org Lett 2022; 24:3058-3063. [DOI: 10.1021/acs.orglett.2c01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qin-Qiong Zeng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Yong-Qi Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Lang Cheng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Feijie Song
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
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11
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Nandy M, Das S, Nanda S. Cyclobutane based "overbred intermediates" and their exploration in organic synthesis. Org Biomol Chem 2022; 20:1582-1622. [PMID: 35089299 DOI: 10.1039/d1ob02361f] [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
"Overbred intermediates" have been used in organic synthesis for a long time, but these intermediates are not categorized as such. This name was given recently in Hoffman's book Elements of Synthesis Planning. These intermediates are very useful to synthesize complex carbocyclic molecules. A number of powerful and efficient strategies have been developed by using overbred intermediates through innovative fragmentative transformations. This review is based on four-member overbred intermediates (cyclobutane based) that have been used in the total synthesis of natural products from 1968 to 2020. In the initial part, we have discussed synthetic methods (photochemical, metal-mediated, and other miscellaneous transformations) for the construction of cyclobutane overbred intermediates. In the later section, we have discussed how the overbred skeleton is cleaved through numerous fragmentation methods to access the desired target structure.
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Affiliation(s)
- Monosij Nandy
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India.
| | - Swagata Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India.
| | - Samik Nanda
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, India.
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12
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Guo J, Liu Y, Lin X, Tang T, Wang B, Hu P, Zhao K, Song F, Shi Z. Site‐Selective C–C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jing‐Hong Guo
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Yu Liu
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Xin‐Cheng Lin
- Department of Chemistry Fudan University Shanghai 200433 China
| | - Tian‐Mu Tang
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Bi‐Qin Wang
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Ping Hu
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Ke‐Qing Zhao
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Feijie Song
- College of Chemistry and Materials Science Sichuan Normal University Chengdu Sichan 610066 China
| | - Zhang‐Jie Shi
- Department of Chemistry Fudan University Shanghai 200433 China
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13
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Guo JH, Liu Y, Lin XC, Tang TM, Wang BQ, Hu P, Zhao KQ, Song F, Shi ZJ. Site-Selective C-C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis. Angew Chem Int Ed Engl 2021; 60:19079-19084. [PMID: 34187100 DOI: 10.1002/anie.202106709] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/22/2021] [Indexed: 12/29/2022]
Abstract
Controlling the chemo- and regioselectivity of transition-metal-catalyzed C-C activation remains a great challenge. The transformations of benzocyclobutenones (BCBs) usually involve the cleavage of C1-C2 bond. In this work, an unprecedented highly selective cleavage of C1-C8 bond with the insertion of alkynes is achieved by using blocking strategy via Ni catalysis, providing an efficient method for synthesis of 1,8-disubstituted naphthalenes. Notably, the blocking group could be readily removed after the transformation.
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Affiliation(s)
- Jing-Hong Guo
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Yu Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Xin-Cheng Lin
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Tian-Mu Tang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Feijie Song
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichan, 610066, China
| | - Zhang-Jie Shi
- Department of Chemistry, Fudan University, Shanghai, 200433, China
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14
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Ji L, Qiao J, Liu J, Tian M, Lu K, Zhao X. Metal-free chalcogenation of cycloketone oxime esters with dichalcogenides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Bi X, Zhang Q, Gu Z. Transition‐Metal‐Catalyzed Carbon‐Carbon
Bond Activation in Asymmetric Synthesis. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000591] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiufen Bi
- Hefei National Laboratory for Physical Science at the Microscale, and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Qiuchi Zhang
- Hefei National Laboratory for Physical Science at the Microscale, and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Zhenhua Gu
- Ocean College Minjiang University Fuzhou Fujian 350108 China
- Hefei National Laboratory for Physical Science at the Microscale, and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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16
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Liu C, Yuan J, Zhang Z, Gridnev ID, Zhang W. Asymmetric Hydroacylation Involving Alkene Isomerization for the Construction of C
3
‐Chirogenic Center. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chong Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jing Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ilya D. Gridnev
- Department of Chemistry Graduate School of Science Tohoku University Aramaki 3–6, Aoba-ku Sendai 980-8578 Japan
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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17
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Liu C, Yuan J, Zhang Z, Gridnev ID, Zhang W. Asymmetric Hydroacylation Involving Alkene Isomerization for the Construction of C
3
‐Chirogenic Center. Angew Chem Int Ed Engl 2021; 60:8997-9002. [DOI: 10.1002/anie.202017190] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Chong Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jing Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ilya D. Gridnev
- Department of Chemistry Graduate School of Science Tohoku University Aramaki 3–6, Aoba-ku Sendai 980-8578 Japan
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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18
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Yan P, Zhong C, Zhang J, Liu Y, Fang H, Lu P. 3‐(Methoxycarbonyl)Cyclobutenone as a Reactive Dienophile in Enantioselective Diels–Alder Reactions Catalyzed by Chiral Oxazaborolidinium Ions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014308] [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)
- Peng Yan
- Department of Research Center for Molecular Recognition and Synthesis Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 P. R. China
| | - Changxu Zhong
- Department of Research Center for Molecular Recognition and Synthesis Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 P. R. China
| | - Jie Zhang
- College of Chemistry and Life Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 P. R. China
| | - Yu Liu
- College of Chemistry and Life Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 P. R. China
| | - Huayi Fang
- School of Materials Science and Engineering Tianjin Key Lab for Rare Earth Materials and Applications Nankai University Tianjin 300350 P. R. China
| | - Ping Lu
- Department of Research Center for Molecular Recognition and Synthesis Department of Chemistry Fudan University 220 Handan Lu Shanghai 200433 P. R. China
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19
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Yan P, Zhong C, Zhang J, Liu Y, Fang H, Lu P. 3-(Methoxycarbonyl)Cyclobutenone as a Reactive Dienophile in Enantioselective Diels-Alder Reactions Catalyzed by Chiral Oxazaborolidinium Ions. Angew Chem Int Ed Engl 2021; 60:4609-4613. [PMID: 33201584 DOI: 10.1002/anie.202014308] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/16/2020] [Indexed: 11/06/2022]
Abstract
Cyclobutenone has been used as a highly reactive dienophile in Diels-Alder reactions, however, no enantioselective example has been reported. We disclose herein a chiral oxazaborolidine-aluminum bromide catalyzed enantioselective Diels-Alder reaction of 3-alkoxycarbonyl cyclobutenone with a variety of dienes. Furthermore, a total synthesis of (-)-kingianin F was completed for the first time via enantioenriched cycloadduct bicyclo[4.2.0]octane derivative.
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Affiliation(s)
- Peng Yan
- Department of Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, P. R. China
| | - Changxu Zhong
- Department of Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, P. R. China
| | - Jie Zhang
- College of Chemistry and Life, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Yu Liu
- College of Chemistry and Life, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, P. R. China
| | - Ping Lu
- Department of Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai, 200433, P. R. China
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20
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Mo J, Messinis AM, Oliveira JCA, Demeshko S, Meyer F, Ackermann L. Iron-Catalyzed Triazole-Enabled C–H Activation with Bicyclopropylidenes. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04748] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiayu Mo
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Antonis M. Messinis
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
- WISCh (Wöhler-Research Institute for Sustainable Chemistry), 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
- WISCh (Wöhler-Research Institute for Sustainable Chemistry), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
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21
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Bai D, Liu S, Chen J, Yu Y, Wang M, Chang J, Lan Y, Li X. Mechanistic studies on nickel-catalyzed enantioselective [3 + 2] annulation for γ-butenolide synthesis via C–C activation of diarylcyclopropenones. Org Chem Front 2021. [DOI: 10.1039/d1qo00322d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Detailed mechanistic studies on Ni-catalyzed C–C activation of cyclopropenones, and enantioselective [3 + 2] annulation with α-CF3 enones or 1,2-diones toward the efficient synthesis of γ-butenolides.
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Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Song Liu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
| | - Junyan Chen
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Manman Wang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
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22
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Zou D, Gan LS, Yang F, Wang JM, Li LL, Li J. Selective transition metal-free aroylation of diarylmethanes with 2-acyl-imidazolium salts via acyl C–C bond cleavage. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Li B, Zhang G, Xu T. Pd‐Catalyzed Regio‐ and Diastereoselective Heck Cyclization to Access Bicyclo[3.2.1]octanone Ring Systems. ChemCatChem 2020. [DOI: 10.1002/cctc.202001089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bo Li
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Guiming Zhang
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
| | - Tao Xu
- Key Laboratory of Marine Drugs Ministry of Education School of Medicine and Pharmacy Ocean University of China 5 Yushan Road Qingdao 266003 P. R. China
- Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products Pilot National Laboratory for Marine Science and Technology 1 Wenhai Road Qingdao 266237 P. R. China
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24
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Lu H, Zhao TT, Bai JH, Ye D, Xu PF, Wei H. Divergent Coupling of Benzocyclobutenones with Indoles via C-H and C-C Activations. Angew Chem Int Ed Engl 2020; 59:23537-23543. [PMID: 32896964 DOI: 10.1002/anie.202010244] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Indexed: 11/07/2022]
Abstract
Highly selective divergent coupling reactions of benzocyclobutenones and indoles, in which the chemoselectivity is controlled by catalysts, are reported herein. The substrates undergo C2(indole)-C8(benzocyclobutenone) coupling to produce benzylated indoles and benzo[b]carbazoles in the Ni- and Ru-catalyzed reactions. A completely different selectivity pattern C2(indole)-C2(benzocyclobutenone) coupling to form arylated indoles is observed in the Rh-catalyzed reaction. Preliminary mechanistic studies suggest C-H and C-C activations in the reaction pathway. Synthetic utility of this protocol is demonstrated by the selective synthesis of three different types of carbazoles from the representative products.
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Affiliation(s)
- Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, China
| | - Tian-Tian Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jin-Hua Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, China
| | - Dan Ye
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, China
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25
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Lu H, Zhao T, Bai J, Ye D, Xu P, Wei H. Divergent Coupling of Benzocyclobutenones with Indoles via C−H and C−C Activations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710069 China
| | - Tian‐Tian Zhao
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Jin‐Hua Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710069 China
| | - Dan Ye
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710069 China
| | - Peng‐Fei Xu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710069 China
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26
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Mu Y, Yuan Y, Wang Y, Xu M, Feng Y, Zhao Y, Li Y. Synthesis of indoline-fused eight-membered azaheterocycles through Zn-catalyzed dearomatization of indoles and subsequent base-promoted C-C activation. Org Biomol Chem 2020; 18:6916-6926. [PMID: 32869825 DOI: 10.1039/d0ob01626h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cascade reaction involving the Zn-catalyzed dearomatization of indoles, base-promoted ring-expansion and intramolecular SNAr reaction has been developed. This process realized a novel, atom economical and efficient synthesis of indoline-fused eight-membered azaheterocycles in a one pot manner.
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Affiliation(s)
- Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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27
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Rhodium-catalyzed decarbonylation cross-coupling reactions of aromatic aldehydes and arylboronic acids via C C bond activation directed by a guide group chelation. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Hu X, Shao Y, Xie H, Chen X, Chen F, Ke Z, Jiang H, Zeng W. Direct Carbon–Carbon σ Bond Amination of Unstrained Arylalkylketones. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02683] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xinwei Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Youxiang Shao
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Haisheng Xie
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fengjuan Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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29
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Ding D, Dong H, Wang C. Nickel-Catalyzed Asymmetric Domino Ring Opening/Cross-Coupling Reaction of Cyclobutanones via a Reductive Strategy. iScience 2020; 23:101017. [PMID: 32289735 PMCID: PMC7155205 DOI: 10.1016/j.isci.2020.101017] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/06/2020] [Accepted: 03/23/2020] [Indexed: 01/01/2023] Open
Abstract
Herein we demonstrate the successful application of reductive strategy in the asymmetric domino ring opening/cross-coupling reaction of prochiral cyclobutanones. Under the catalysis of a chiral nickel complex, various aryl iodide-tethered cyclobutanones were reacted with alkyl bromides as the electrophilic coupling partner, providing a variety of chiral indanones bearing a quaternary stereogenic center in highly enantioselective manner, which can be further converted to diverse benzene-fused cyclic compounds including indane, indene, dihydrocoumarin, and dihydroquinolinone. The preliminary mechanistic investigations support a mechanism involving Ni(I)-mediated enantiotopic C−C σ-bond activation of cyclobutanones as key elementary step in the catalytic cycle. Asymmetric ring opening of prochiralcyclobutanones via reductive Nickel-catalysis Merger of electrophilic ring opening and cross-electrophile coupling Chiral indanones were synthesized in highly enantioselective manner
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Affiliation(s)
- Decai Ding
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Haiyan Dong
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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30
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Yan X, Zhao P, Liang H, Xie H, Jiang J, Gou S, Wang J. Rhodium(III)-Catalyzed Asymmetric C–H Activation of N-Methoxybenzamide with Quinone and Its Application in the Asymmetric Synthesis of a Dihydrolycoricidine Analogue. Org Lett 2020; 22:3219-3223. [DOI: 10.1021/acs.orglett.0c01002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoqiang Yan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Peng Zhao
- School of Chemistry and Chemical Engineering, State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Hui Xie
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Shaohua Gou
- School of Chemistry and Chemical Engineering, State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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31
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Yuan Y, Guo Z, Mu Y, Wang Y, Xu M, Li Y. Synthesis of Spiro[5.n (n=6–8)]heterocycles through Successive Ring‐Expansion/Indole C‐2 Functionalization. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901631] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yang Yuan
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Zixia Guo
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yuanyang Mu
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Ye Wang
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Murong Xu
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
| | - Yanzhong Li
- School of Chemistry and Molecular EngineeringEast China Normal University 500 Dongchuan Road Shanghai 200241 People's Republic of China
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32
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33
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Bai D, Yu Y, Guo H, Chang J, Li X. Nickel(0)‐Catalyzed Enantioselective [3+2] Annulation of Cyclopropenones and α,β‐Unsaturated Ketones/Imines. Angew Chem Int Ed Engl 2020; 59:2740-2744. [DOI: 10.1002/anie.201913130] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/29/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Haiming Guo
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
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34
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Zhao X, Tian M, Ji L, Liu J, Lu K. Metal-Free sp3 C-SCF3 Coupling Reactions between Cycloketone Oxime Esters and S-trifluoromethyl 4-Methylbenzenesulfonothioate. Org Lett 2020; 22:863-866. [DOI: 10.1021/acs.orglett.9b04343] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xia Zhao
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, China, 300387
| | - Miaomiao Tian
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, China, 300387
| | - Liangshuo Ji
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, China, 300387
| | - Junjie Liu
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic−Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Normal University, Tianjin, China, 300387
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China, 300457
| | - Kui Lu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China, 300457
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35
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Bai D, Yu Y, Guo H, Chang J, Li X. Nickel(0)‐Catalyzed Enantioselective [3+2] Annulation of Cyclopropenones and α,β‐Unsaturated Ketones/Imines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Haiming Guo
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
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36
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Zhang Y, Shen S, Fang H, Xu T. Total Synthesis of Galanthamine and Lycoramine Featuring an Early-Stage C-C and a Late-Stage Dehydrogenation via C-H Activation. Org Lett 2020; 22:1244-1248. [PMID: 31904968 DOI: 10.1021/acs.orglett.9b04337] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein, we report a novel strategy toward galanthamine and lycoramine. The concise synthesis was enabled by a Rh-catalyzed gram-scale C-C activation for the tetracyclic carbon framework and a regioselective Pd-catalyzed C-H activation for double-bond introduction. An aqueous-phase Beckmann rearrangement was performed for nitrogen atom insertion. Galanthamine and lycoramine were completed in 11 and 10 steps, respectively.
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Affiliation(s)
- Yuna Zhang
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy, Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology , Ocean University of China , Qingdao 266003 , China
| | - Shuna Shen
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy, Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology , Ocean University of China , Qingdao 266003 , China
| | - Hua Fang
- Technical Innovation Center for Utilization of Marine Biological Resources , Third Institute of Oceanography, Ministry of Natural Resources , Xiamen 361005 , China
| | - Tao Xu
- Key Laboratory of Marine Drugs, Ministry of Education; School of Medicine and Pharmacy, Laboratory for Marine Drugs and Bioproducts & Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology , Ocean University of China , Qingdao 266003 , China
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37
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Wang M, Yang Y, Song B, Yin L, Yan S, Li Y. Selective Insertion of Alkynes into C-C σ Bonds of Indolin-2-ones: Transition-Metal-Free Ring Expansion Reactions to Seven-Membered-Ring Benzolactams or Chromone Derivatives. Org Lett 2020; 22:155-159. [PMID: 31860320 DOI: 10.1021/acs.orglett.9b04081] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An unprecedented ring expansion reaction of indolin-2-ones with alkynyl ketones under transition-metal-free conditions has been developed. Base-promoted selective cleavage of a C-C σ bond of the amide is the key in this process, which provides a straightforward and efficient way to synthesize seven-membered-ring benzolactams or chromone derivatives. The significant advantages of this method include readily accessible starting materials, wide scope and functional group tolerance, and high atom economy.
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Affiliation(s)
- Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Yajie Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Bo Song
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Liqiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Shuhui Yan
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Progresses, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
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38
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Yu Y, Wang XY, Peng JY, Liu T, Zhao YL. Copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes: synthesis of fully substituted indoles. Chem Commun (Camb) 2020; 56:9815-9818. [DOI: 10.1039/d0cc00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes has been developed. This reaction provides a new method for the synthesis of fully substituted indoles by formation of four new bonds and two rings in a single step.
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Affiliation(s)
- Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xin-Yu Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Ju-Yin Peng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Tao Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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Wang T, Wang YN, Wang R, Zhang BC, Yang C, Li YL, Wang XS. Enantioselective cyanation via radical-mediated C-C single bond cleavage for synthesis of chiral dinitriles. Nat Commun 2019; 10:5373. [PMID: 31772198 PMCID: PMC6879615 DOI: 10.1038/s41467-019-13369-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/05/2019] [Indexed: 01/24/2023] Open
Abstract
Ring-opening reaction via selective cleavage of C–C bond is known as a powerful strategy for construction of complex molecules. Complementary to the ionic process focusing on mostly small ring systems, radical-mediated C–C bond cleavage offers a solution for further diverse enantioselective functionalization benefited from its mild conditions, whereas such asymmetric transformations are still limited to three-membered rings so far. Herein, we describe radical-mediated ring-opening and enantioselective cyanation of four- and five-membered cycloketone oxime esters to access chiral 1,5- and 1,6-dinitriles. Employment of dual photoredox/copper catalysis is essential for the asymmetric ring-opening cyanation of cyclopentanone oxime esters. Both reactions proceed under mild conditions giving chiral dinitriles in high yields and enantioselectivity with low catalyst loading and broad substrate scope. The products dinitriles can be converted to valuable optically active diamides and diamines. Mechanistic studies indicate that the benzylic radical generated via C–C single bond cleavage is involved in the catalytic cycle. Ring-opening reaction via selective cleavage of C–C bond is a powerful strategy to increase molecular complexity. Here the authors present the facile synthesis of chiral 1,5- and 1,6-dinitriles via the radical-mediated ring-opening and enantioselective cyanation of cycloketone oxime esters.
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Affiliation(s)
- Tao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Yi-Ning Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Rui Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Bo-Chao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Chi Yang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Yan-Lin Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, 230026, Hefei, Anhui, P. R. China.
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Yu JX, Teng F, Xiang JN, Deng W, Li JH. One-Carbon Incorporation Using Cyclobutanone Oxime Ester Enabled [2 + 2 + 1] Carboannulation of 1,7-Enynes by C–C/N–O Bond Cleavage and C–H Functionalization. Org Lett 2019; 21:9434-9437. [DOI: 10.1021/acs.orglett.9b03643] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiang-Xi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials, University of Hunan Province, Hengyang Normal University, Hengyang 421008, China
| | - Fan Teng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jian-Nan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Wei Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Key Laboratory of Functional Organometallic Materials, University of Hunan Province, Hengyang Normal University, Hengyang 421008, China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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Feng L, Hu T, Zhang S, Xiong HY, Zhang G. Copper-Mediated Deacylative Coupling of Ynones via C-C Bond Activation under Mild Conditions. Org Lett 2019; 21:9487-9492. [PMID: 31755723 DOI: 10.1021/acs.orglett.9b03684] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The intermolecular deacylative coupling of unstrained ynones via C-C bond activation was accomplished by a CuCl-bpy system under mild reaction conditions. This protocol features facile cleavage of the C-C bond at room temperature, broad substrate scope, and efficient construction of important symmetric and unsymmetrical 1,3-diyne adducts through homo or cross coupling of ynones, respectively. The preliminary mechanistic investigations indicated that an acyl copper(III) complex is likely involved in this process.
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Affiliation(s)
- Lili Feng
- Institute of Organic Functional Molecules, Engineering Laboratory of Fire Retardant and Functional Materials, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
| | - Tingjun Hu
- Institute of Organic Functional Molecules, Engineering Laboratory of Fire Retardant and Functional Materials, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
| | - Saisai Zhang
- Institute of Organic Functional Molecules, Engineering Laboratory of Fire Retardant and Functional Materials, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
| | - Heng-Ying Xiong
- Institute of Organic Functional Molecules, Engineering Laboratory of Fire Retardant and Functional Materials, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
| | - Guangwu Zhang
- Institute of Organic Functional Molecules, Engineering Laboratory of Fire Retardant and Functional Materials, College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
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Jiang C, Lu H, Xu WH, Wu J, Yu TY, Xu PF, Wei H. Ni-Catalyzed 1,2-Acyl Migration Reactions Triggered by C–C Bond Activation of Ketones. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Cheng Jiang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Wen-Hua Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Jianing Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Tian-Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
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Deng L, Fu Y, Lee SY, Wang C, Liu P, Dong G. Kinetic Resolution via Rh-Catalyzed C-C Activation of Cyclobutanones at Room Temperature. J Am Chem Soc 2019; 141:16260-16265. [PMID: 31568718 DOI: 10.1021/jacs.9b09344] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we describe the development of a highly selective kinetic resolution of cyclobutanones via a Rh-catalyzed "cut-and-sew" reaction with selectivity factor up to 785. This reaction takes place at room temperature with excellent efficiency. Various trans-5,6-fused bicycles and C2-substituted cyclobutanones were obtained with excellent ee's that can be further used as chiral building blocks. DFT calculations reveal the crucial roles of the DTBM-segphos ligand in stabilizing the rate- and enantioselectivity-determining C-C oxidative addition transition state via favorable ligand-substrate dispersion interactions.
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Affiliation(s)
- Lin Deng
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Yue Fu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Siu Yin Lee
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Chengpeng Wang
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Peng Liu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
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45
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Zhao K, Yamashita K, Carpenter JE, Sherwood TC, Ewing WR, Cheng PTW, Knowles RR. Catalytic Ring Expansions of Cyclic Alcohols Enabled by Proton-Coupled Electron Transfer. J Am Chem Soc 2019; 141:8752-8757. [PMID: 31117664 DOI: 10.1021/jacs.9b03973] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report here a catalytic method for the modular ring expansion of cyclic aliphatic alcohols. In this work, proton-coupled electron transfer activation of an allylic alcohol substrate affords an alkoxy radical intermediate that undergoes subsequent C-C bond cleavage to furnish an enone and a tethered alkyl radical. Recombination of this alkyl radical with the revealed olefin acceptor in turn produces a ring-expanded ketone product. The regioselectivity of this C-C bond-forming event can be reliably controlled via substituents on the olefin substrate, providing a means to convert a simple N-membered ring substrate to either n+1 or n+2 ring adducts in a selective fashion.
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Affiliation(s)
- Kuo Zhao
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Kenji Yamashita
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Joseph E Carpenter
- Discovery Chemistry , Bristol-Myers Squibb Co. , Princeton , New Jersey 08543 , United States
| | - Trevor C Sherwood
- Discovery Chemistry , Bristol-Myers Squibb Co. , Princeton , New Jersey 08543 , United States
| | - William R Ewing
- Discovery Chemistry , Bristol-Myers Squibb Co. , Princeton , New Jersey 08543 , United States
| | - Peter T W Cheng
- Discovery Chemistry , Bristol-Myers Squibb Co. , Princeton , New Jersey 08543 , United States
| | - Robert R Knowles
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
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46
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Zhang H, Luo Y, Li D, Yao Q, Dong S, Liu X, Feng X. Enantioselective Synthesis of 4-Hydroxy-dihydrocoumarins via Catalytic Ring Opening/Cycloaddition of Cyclobutenones. Org Lett 2019; 21:2388-2392. [PMID: 30900904 DOI: 10.1021/acs.orglett.9b00670] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A highly diastereo- and enantioselective ring-opening/cycloaddition reaction of cyclobutenones with 2-hydroxyacetophenones or salicylaldehyde was achieved by employing a chiral N,N'-dioxide-scandium(III) complex as the catalyst. It provided various 3-phenylvinyl-4-hydroxy-dihydrocoumarins in good yields (up to 92%), high enantioselectivities (up to 93% ee), and excellent diastereoselectivities (>19:1 dr). Moreover, a possible catalytic cycle was proposed based on the control experiments and previous reports.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Dawei Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
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47
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Yin Z, Rabeah J, Brückner A, Wu XF. Vinylboron Self-Promoted Carbonylative Coupling with Cyclobutanone Oxime Esters. Org Lett 2019; 21:1766-1769. [DOI: 10.1021/acs.orglett.9b00333] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Zhiping Yin
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Jabor Rabeah
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Angelika Brückner
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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48
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Total synthesis of penta-Me amurensin H and diptoindonesin G featuring a Rh-catalyzed carboacylation/aromatization cascade enabled by C C activation. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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49
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Yang Y, Huang J, Tan H, Kong L, Wang M, Yuan Y, Li Y. Synthesis of cyano-substituted carbazoles via successive C-C/C-H cleavage. Org Biomol Chem 2019; 17:958-965. [PMID: 30631868 DOI: 10.1039/c8ob03031f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A highly efficient protocol for the synthesis of polysubstituted cyano carbazoles has been developed. This process is realized through the tandem reactions of Cs2CO3 promoted C-C σ-bond activation of α-cyano ketones followed by Fe-catalyzed selective C-H and/or C-C bond activations. Two of the sp2 C-H bonds are functionalized, and two of the C-C σ-bonds are cleaved involving a 1,2-acyl migration during the reaction process.
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Affiliation(s)
- Yajie Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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50
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Bai XF, Mu QC, Xu Z, Yang KF, Li L, Zheng ZJ, Xia CG, Xu LW. Catalytic Asymmetric Carbonylation of Prochiral Sulfonamides via C–H Desymmetrization. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04725] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xing-Feng Bai
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Qiu-Chao Mu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Ke-Fang Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Chun-Gu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
| | - Li-Wen Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
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