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Chen L, Zhang CH, Liu J, Sun J, Li CC. Asymmetric Synthesis of the Tetracyclic Core of Venezuelaene B. Org Lett 2025; 27:3517-3520. [PMID: 40168588 DOI: 10.1021/acs.orglett.5c00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2025]
Abstract
A concise and efficient approach for the asymmetric synthesis of the tetracyclic core of venezuelaene B is described. Its uncommon and synthetically challenging [5-5-6-7] tetracyclic skeleton was constructed via a mild acid-promoted type I [5+2] cycloaddition, followed by a diastereoselective intramolecular Pauson-Khand reaction. The described chemistry establishes the feasibility of constructing the [5-5-6-7] tetracyclic core and several desired stereocenters (C2, C10, C11, and C14) of the final product.
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Affiliation(s)
- Louxi Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| | - Chao-Han Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Junyang Liu
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
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2
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Hsiang SJ, Hayes PG. Rhodium-mediated Assembly of New Heterocycles: From Borylenes to Oxaboroles. Angew Chem Int Ed Engl 2025; 64:e202421302. [PMID: 39808590 DOI: 10.1002/anie.202421302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2024] [Revised: 01/13/2025] [Accepted: 01/14/2025] [Indexed: 01/16/2025]
Abstract
Base-stabilized rhodium borylene complex κ2-L(CO)Rh(BMes), 2; κ2-L=κ2-NN'-Rh,κ1-N-B-(2,5-[iPr2P=N(4-iPrC6H4)]2-N'(C4H2)-); Mes=mesityl, reacts with a series of alkynes (PhC≡C-R; R=Ph, Me, CO2Et, H) to yield unique structures whereby the alkyne has regioselectively added across boron and the carbon atom of a CO ligand. The resulting complexes, LRh[C(O)C(Ph)C(R)B(Mes)], 3R, react with additional CO to afford cycle-containing products, L(CO)Rh( P h C C R = B M e s O C ‾ ${(\overline{{\rm P}{\rm h}{\rm C}{\rm C}{\rm R}=B{\rm M}{\rm e}{\rm s}{\rm O}{\rm C}}}$ ), 5R, that ultimately release highly functionalized organic heterocycles of the formP h C = C R B M e s O C ‾ ${\overline{{\rm P}{\rm h}{\rm C}=C{\rm R}{\rm B}{\rm M}{\rm e}{\rm s}{\rm O}{\rm C}}}$ =NPipp (Pipp=4-iPrC6H4), 6. These oxaboroles, which were assembled from a primary hydroborane, CO, an alkyne, and an azide-generated NPipp, are structurally analogous to two of the five boron-containing therapeutics approved by the FDA.
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Affiliation(s)
- Shou-Jen Hsiang
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Dr. W., Lethbridge, AB, Canada
| | - Paul G Hayes
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Dr. W., Lethbridge, AB, Canada
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3
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Kasahara R, Toyoda T, Fukasawa S, Takeuchi A, Sato A, Hori A, Kitagawa O. Chirality Transfer Intramolecular Pauson-Khand Reaction with N-C Axially Chiral Sulfonamides Bearing an Ene-Yne Structure. Org Lett 2023; 25:7390-7394. [PMID: 37782042 DOI: 10.1021/acs.orglett.3c02893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
An intramolecular Pauson-Khand reaction with enantioenriched N-C axially chiral N-allyl-N-(2-alkynylphenyl)sulfonamide derivatives proceeded with complete chirality transfer from axial chirality (P configuration) to central chirality (R configuration), affording chiral nitrogen-containing tricyclic compounds (tetrahydrocyclopentaquinolin-2-one derivatives).
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Affiliation(s)
- Ryohei Kasahara
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Tatsuya Toyoda
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Sota Fukasawa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Aoi Takeuchi
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
| | - Azusa Sato
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Akiko Hori
- Graduate School of Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Osamu Kitagawa
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
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4
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Wang H, Liu Y, Zhang H, Yang B, He H, Gao S. Asymmetric Total Synthesis of Cephalotaxus Diterpenoids: Cephinoid P, Cephafortoid A, 14- epi-Cephafortoid A and Fortalpinoids M-N, P. J Am Chem Soc 2023; 145:16988-16994. [PMID: 37493585 DOI: 10.1021/jacs.3c05455] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
The asymmetric total syntheses of cephalotaxus C19 diterpenoids, bearing a unique cycloheptene A ring with a chiral methyl group at C-12, were disclosed based on a universal strategy. Six members, including cephinoid P, cephafortoid A, 14-epi-cephafortoid A and fortalpinoids M-N, P, were accomplished for the first time. The concise approach relies on two crucial steps: (1) a Nicholas/Hosomi-Sakurai cascade reaction was developed to efficiently generate the cycloheptene ring bearing a chiral methyl group; (2) an intramolecular Pauson-Khand reaction was followed to facilitate the construction of the complete skeleton of target molecules. Our studies provide a new strategy for the synthetic analysis of cephalotaxus diterpenoids and structurally related polycyclic natural products.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yi Liu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Hongyuan Zhang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Baochao Yang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Haibing He
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Shuanhu Gao
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, Wuhu Hospital Affiliated to East China Normal University, East China Normal University, Shanghai 200062, P. R. China
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5
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Zou YP, Lai ZL, Zhang MW, Peng J, Ning S, Li CC. Total Synthesis of (±)- and (-)-Daphnillonin B. J Am Chem Soc 2023; 145:10998-11004. [PMID: 37167083 DOI: 10.1021/jacs.3c03755] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The first total synthesis of (±)- and (-)-daphnillonin B, a daphnicyclidin-type alkaloid with a new [7-6-5-7-5-5] A/B/C/D/E/F hexacyclic core, has been achieved. The [6-5-7] B/C/D ring system was efficiently and diastereoselectively constructed via a mild type I intramolecular [5+2] cycloaddition, followed by a Grubbs II catalyst-catalyzed radical cyclization. The [5-5] fused E/F ring system was synthesized via a diastereoselective intramolecular Pauson-Khand reaction. Notably, the synthetically challenging [7-6-5-7-5-5] hexacyclic core was reassembled by a unique Wagner-Meerwein-type rearrangement from the [6-6-5-7-5-5] hexacyclic framework found in calyciphylline A-type Daphniphyllum alkaloids.
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Affiliation(s)
- Yun-Peng Zou
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zheng-Lin Lai
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meng-Wei Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jianzhao Peng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuai Ning
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
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6
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Geng W, Wang H, Xi J, Jiang R, Guo J, Jiao K, Tang M, Liu Q, Zhang L, Liu H. Palladium-catalyzed cascade cyclization of allenamide with 2-iodoanilines to access functionalized indoloquinolines. Org Biomol Chem 2023; 21:279-283. [PMID: 36484347 DOI: 10.1039/d2ob01770a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel and efficient palladium-catalyzed cascade cyclization to indoloquinoline derivatives in one pot has been developed by using allenamide derivatives and 2-iodoanilines as the key building blocks. The process involved two cyclizations: intramolecular cyclization/π-allylic substitution and intramolecular 6-endo Heck cyclization. Furthermore, dihydrobenzofuro[2,3-b]quinoline derivatives could also be achieved via this strategy using allenyl ethers instead of allenamides. The readily available substrates, mild conditions, high efficiency and step economy make this strategy a promising method in the synthesis of polycyclic motifs.
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Affiliation(s)
- Wenzhe Geng
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Hui Wang
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China. .,Shandong Jincheng Biopharmaceutical Co., Ltd., No. 3 Shuangshan Road of Xingshan, Zibo 255049, P. R. China
| | - Juan Xi
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Ruonan Jiang
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Jintao Guo
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Keqiang Jiao
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Mengyao Tang
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Qing Liu
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Lizhi Zhang
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
| | - Hui Liu
- School of Chemistry & Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China. .,Shandong Jincheng Biopharmaceutical Co., Ltd., No. 3 Shuangshan Road of Xingshan, Zibo 255049, P. R. China
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7
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Ghosh AK, Weber IT, Mitsuya H. Beyond darunavir: recent development of next generation HIV-1 protease inhibitors to combat drug resistance. Chem Commun (Camb) 2022; 58:11762-11782. [PMID: 36200462 PMCID: PMC10942761 DOI: 10.1039/d2cc04541a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
We report our recent development of a conceptually new generation of exceptionally potent non-peptidic HIV-1 protease inhibitors that displayed excellent pharmacological and drug-resistance profiles. Our X-ray structural studies of darunavir and other designed inhibitors from our laboratories led us to create a variety of inhibitors incorporating fused ring polycyclic ethers and aromatic heterocycles to promote hydrogen bonding interactions with the backbone atoms of HIV-1 protease as well as van der Waals interactions with residues in the S2 and S2' subsites. We have also incorporated specific functionalities to enhance van der Waals interactions in the S1 and S1' subsites. The combined effects of these structural templates are critical to the inhibitors' exceptional potency and drug-like properties. We highlight here our molecular design strategies to promote backbone hydrogen bonding interactions to combat drug-resistance and specific design of polycyclic ether templates to mimic peptide-like bonds in the HIV-1 protease active site. Our medicinal chemistry and drug development efforts led to the development of new generation inhibitors significantly improved over darunavir and displaying unprecedented antiviral activity against multidrug-resistant HIV-1 variants.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Irene T Weber
- Departments of Biology and Chemistry, Molecular Basis of Disease, Georgia State University, Atlanta, GA 30303, USA
| | - Hiroaki Mitsuya
- Departments of Hematology and Infectious Diseases, Kumamoto University School of Medicine, Kumamoto 860-8556, Japan
- Experimental Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, Bethesda, MD 20892, USA
- Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku, Tokyo 162-8655, Japan
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8
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Kalb AE, Liu M, Bosso MI, Uyeda C. A dinickel-catalyzed three-component cycloaddition of vinylidenes. Chem Sci 2022; 13:11190-11196. [PMID: 36320482 PMCID: PMC9516891 DOI: 10.1039/d2sc02696a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/17/2022] [Indexed: 09/20/2023] Open
Abstract
A dinickel catalyst promotes the [2 + 2 + 1]-cycloaddition of two aldehyde equivalents and a vinylidene. The resulting methylenedioxolane products can be deprotected in one pot under acidic conditions to reveal α-hydroxy ketones. This method provides convenient access to unsymmetrical alkyl-substituted α-hydroxy ketones, which are challenging to synthesize selectively using cross-benzoin reactions. Mechanistic studies are consistent with an initial migratory insertion of the aldehyde into a dinickel bridging vinylidene. Insertion of the second aldehyde followed by C-O reductive elimination furnishes the cycloadduct. Under dilute conditions, an enone side product is generated due to a competing β-hydride elimination from the proposed metallacyclic intermediate. A DFT model consistent with the concentration-dependent formation of the methylenedioxolane and enone is presented.
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Affiliation(s)
- Annah E Kalb
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Mingxin Liu
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Megan I Bosso
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Christopher Uyeda
- Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
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9
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Kang Q, Mu Y, Yuan Y, Wang Y, Jin S, Wang C, Li Y. Diastereoselective Synthesis of Bicyclo[3.3.0]octenones by Copper-Catalyzed Transannular Ring-Closing Reaction. Org Lett 2022; 24:5924-5928. [PMID: 35930708 DOI: 10.1021/acs.orglett.2c02163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel and efficient copper-catalyzed transannular ring-closing reaction of eight-membered rings has been developed that provides a straightforward way to synthesize bicyclo[3.3.0]octane derivatives in good yields. Mechanistic studies revealed that the reaction pathway might involve chlorination followed by the Kornblum reaction. Readily accessible starting materials and good functional group tolerance make this procedure attractive.
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Affiliation(s)
- Qiongwen Kang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Shuxin Jin
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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10
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Wang YQ, Xu K, Min L, Li CC. Asymmetric Total Syntheses of Hypoestin A, Albolic Acid, and Ceroplastol II. J Am Chem Soc 2022; 144:10162-10167. [PMID: 35657330 DOI: 10.1021/jacs.2c04633] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first asymmetric total synthesis of bioactive diterpenoid hypoestin A with an unprecedented [5-8-5-3] tetracyclic skeleton is accomplished in 15 steps from commercially available (R)-limonene. Furthermore, the second asymmetric total syntheses of sesterterpenoids albolic acid and ceroplastol II in 21 steps are also reported. The synthetically challenging and highly functionalized [X-8-5] (X = 5 or 7) tricarbocyclic ring systems found in hypoestin A, albolic acid, ceroplastol II, and schindilactone A, as well as other natural products, are efficiently and directly constructed via a unique intramolecular Pauson-Khand reaction of an allene-yne. This work represents the first reported use of the Pauson-Khand reaction to access synthetically challenging eight-membered-ring systems in natural product synthesis.
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Affiliation(s)
- Yong-Qiang Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Kunhua Xu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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11
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Deihl ED, Jesikiewicz LT, Newman LJ, Liu P, Brummond KM. Rh(I)-Catalyzed Allenic Pauson-Khand Reaction to Access the Thapsigargin Core: Influence of Furan and Allenyl Chloroacetate Groups on Enantioselectivity. Org Lett 2022; 24:995-999. [PMID: 35081313 DOI: 10.1021/acs.orglett.1c03951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thapsigargin (Tg) is a potent SERCA pump inhibitor with the potential to treat cancer and COVID-19. We have extended the scope of the asymmetric allenic Pauson-Khand reaction to furan-tethered allene-ynes, a stereoconvergent transformation affording the 5,7,5-ring system of Tg in good yields and high enantioselectivity. Computational studies of the oxidative cyclization step show that the furan and chloroacetate groups contribute to this high selectivity.
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Affiliation(s)
- Eric D Deihl
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Luke T Jesikiewicz
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Logan J Newman
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Kay M Brummond
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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12
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Heravi MM, Mohammadi L. Application of Pauson-Khand reaction in the total synthesis of terpenes. RSC Adv 2021; 11:38325-38373. [PMID: 35493249 PMCID: PMC9044263 DOI: 10.1039/d1ra05673e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/28/2021] [Indexed: 12/28/2022] Open
Abstract
The Pauson-Khand reaction (PKR) is a formal [2 + 2 + 1] cycloaddition involving an alkyne, an alkene and carbon monoxide mediated by a hexacarbonyldicobaltalkyne complex to yield cyclopentenones in a single step. This versatile reaction has become a method of choice for the synthesis of cyclopentenone and its derivatives since its discovery in the early seventies. The aim of this review is to point out the applications of PKR in the total synthesis of terpenes.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
| | - Leila Mohammadi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran +98 2188041344 +98 9121329147
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13
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Du X, Zhao H, Li X, Zhang L, Dong Y, Wang P, Zhang D, Liu Q, Liu H. Ligand-Regulated Palladium-Catalyzed Regiodivergent Hydroarylation of the Distal Double Bond of Allenamides with Aryl Boronic Acid. J Org Chem 2021; 86:13276-13288. [PMID: 34541854 DOI: 10.1021/acs.joc.1c01303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The ligand-regulated regiodivergent hydroarylation of the distal double bond of allenamides with aryl boronic acid was achieved in the presence of palladium(II) catalysts, delivering a variety of functionalized enamide with excellent E selectivity and Markovnikov/anti-Markovnikov selectivity. Two possible coordination intermediates were proposed to be responsible for the regiodivergent hydroarylation: (1) The coordination Intermediate I, which was proposed to be formed through the coordination of MeCN, distal double bond, phenyl to palladium, led to the aryl group away from the Intermediate I, inducing excellent E selectivity and anti-Markovnikov selectivity. (2) A switch of regioselectivity to 1,2-Markovnikov hydroarylation was obtained using bidentate phosphine ligand (dppf or Xantphos). The formed coordination Intermediate II led to the N-tether away from the Intermediate II and at the trans position of aryl, resulting in excellent E selectivity and Markovnikov selectivity. Meanwhile, tentative investigation on the mechanism proved that the hydron source of this hydroarylation is more likely to be boronic acid. The transmetallation between aryl boronic acid and palladium catalyst was the initial step of this transformation.
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Affiliation(s)
- Xin Du
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Huan Zhao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Xinling Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Lizhi Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Ping Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Daopeng Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Qing Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, People's Republic of China
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14
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Yuvaraj K, Jones C. Reductive coupling of CO with magnesium anthracene complexes: formation of magnesium enediolates. Chem Commun (Camb) 2021; 57:9224-9227. [PMID: 34519307 DOI: 10.1039/d1cc03890g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two β-diketiminato-magnesium anthracene complexes, [{(ArNacnac)Mg}2(μ-C14H10)] (ArNacnac = [HC(MeCNAr)2]-, Ar = mesityl (Mes) or 2,6-diethylphenyl (Dep)) react with 1 atm. CO at room temperature to give tetra-magnesium enediolate complexes [{(ArNacnac)Mg}4(O2C16H10)2] via coupling of two molecules of CO with the anthracenediyl fragment. Similarly, reaction of magnesium anthracene, [Mg(THF)3(C14H10)], with CO afforded a low isolated yield of a tetra-magnesium complex bearing both dianthraceneylenediolate and dibenzocyclohepteneolateyl ligands. The presented reactions represent very rare examples of magnesium alkyl carbonylations that occur under mild conditions, and in the absence of catalysts.
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Affiliation(s)
- K Yuvaraj
- School of Chemistry, PO Box 23, Monash Uniersity, VIC, 3800, Australia.
| | - Cameron Jones
- School of Chemistry, PO Box 23, Monash Uniersity, VIC, 3800, Australia.
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15
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Recent advances in the total synthesis of natural products bearing the contiguous all-carbon quaternary stereocenters. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Xiao X, Yu ZX. Co-Catalyzed Asymmetric Intramolecular [3+2] Cycloaddition of Yne-Alkylidenecyclopropanes and its Reaction Mechanism. Chemistry 2021; 27:7176-7182. [PMID: 33554413 DOI: 10.1002/chem.202100426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Indexed: 11/08/2022]
Abstract
Developing new transition metal-catalyzed asymmetric cycloadditions for the synthesis of five-membered carbocycles (FMCs) is a research frontier in reaction development due to the ubiquitous presence of chiral FMCs in various functional molecules. Reported here is our discovery of a highly enantioselective intramolecular [3+2] cycloaddition of yne-alkylidenecyclopropanes (yne-ACPs) to bicyclo[3.3.0]octadiene and bicyclo[4.3.0]nonadiene molecules using a cheap Co catalyst and commercially available chiral ligand (S)-Xyl-BINAP. This reaction avoids the use of precious Pd and Rh catalysts, which are usually the choices for [3+2] reactions with ACPs. The enantiomeric excess in the present reaction can be up to 92 %. Cationic cobalt(I) species was suggested by experiments as the catalytic species. DFT calculations showed that this [3+2] reaction starts with oxidative cyclometallation of alkyne and ACP, followed by ring opening of the cyclopropyl (CP) group and reductive elimination to form the cycloadduct. This mechanism is different from previous [3+2] reactions of ACPs, which usually start from CP cleavage, not from oxidative cyclization.
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Affiliation(s)
- Xiong Xiao
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular, Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular, Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
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17
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Ma D, Hu N, Ao J, Zang S, Yu G, Liang G. Pauson‐Khand Reactions with Concomitant C−O Bond Cleavage for the Preparation of 5,5‐ 5,6‐ and 5,7‐Bicyclic Ring Systems. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ding Ma
- State Key Laboratory of Elemento-organic Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Naifeng Hu
- State Key Laboratory of Elemento-organic Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Junli Ao
- State Key Laboratory of Elemento-organic Chemistry Nankai University Tianjin 300071 People's Republic of China
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Shaoli Zang
- State Key Laboratory of Elemento-organic Chemistry Nankai University Tianjin 300071 People's Republic of China
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Guo Yu
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Guangxin Liang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 People's Republic of China
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18
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Oseghale CO, Mogudi BM, Onisuru OR, Akinnawo CA, Fapojuwo DP, Meijboom R. Stable and Surface‐active Co Nanoparticles Formed from Cation (
x
) Promoted Au/
x
‐Co
3
O
4
(
x
=Cs) as Selective Catalyst for [2+2+1] Cyclization Reactions. ChemCatChem 2021. [DOI: 10.1002/cctc.202001841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Charles O. Oseghale
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
| | - Batsile M. Mogudi
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
| | - Oluwatayo Racheal Onisuru
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
| | - Christianah Aarinola Akinnawo
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
| | - Dele Peter Fapojuwo
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
| | - Reinout Meijboom
- Department of Chemical Sciences Research Center for Synthesis and Catalysis University of Johannesburg Auckland Park 2006 Johannesburg South Africa
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19
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Haider S, Khan IA, Ding H, Chittiboyina AG. Synthetic Approaches for Building Tricyclic Cage-like Motifs Found in Indoxamycins. CURR ORG CHEM 2021. [DOI: 10.2174/1385272824999201210193141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Indoxamycins A-F, a novel class of polyketides, were isolated from the saline culture
of marine-derived actinomyces by Sato et al. in 2009. Intriguing stereochemical complexity
involving tricyclic [5.5.6] cage-like structures with six consecutive chiral centers challenged
many organic chemists. Chemical ingenuity, implementation of pioneered reactions
along with fine chemical transformations allowed not only the rapid construction of the central
core but also allowed minor structural revision and paved the information to delineate the
absolute stereostructures of these complex polyketide marine natural products. To achieve the
central core structure in indoxamycins A-F, reactions like the Ireland-Claisen rearrangement,
an enantioselective 1,6-enyne reductive cyclization, and one-pot cascade reactions of 1,2-
addition/oxa-Michael/methylenation were employed. Using the chiral pool approach, the
readily available R-carvone was employed as a cost-effective starting material to achieve the concise total syntheses
of (-)-indoxamycins A and B, in which Pauson-Khand, Cu-catalyzed Michael addition and tandem retro-oxa-Michael
addition/1,2-addition/oxa-Michael addition reactions were employed. The antipodes, (+)-indoxamycins can be easily
accessed by simply switching to S-carvone as the starting material. Synthetically prepared indoxamycins A-F are devoid
of antiproliferative properties, which disagree with the work reported by Sato and co-workers for (-)-
indoxamycins A and F. Nevertheless, ready access to such complex natural products allows probing the untapped
potential biological activities of these polyketides including cytotoxicity. A concise overview of interesting, key
chemical transformations including named reactions in establishing the architecture of indoxamycins was compiled to
inspire organic chemists and help reinvigorate novel strategies for the asymmetric synthesis as well as the development
of novel derivatives of indoxamycins with unique physicochemical and biological properties.
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Affiliation(s)
- Saqlain Haider
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Ikhlas A. Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, United States
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou-310058, China
| | - Amar G. Chittiboyina
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, United States
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20
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Chada RR, Kajare RC, Bhandari MC, Mohammed SZ, Khatravath M, Warudikar K, Punna N. Facile access to [1,2]-oxazine derivatives via annulations of aminoxy-tethered 1,7-enynes. Org Biomol Chem 2021; 19:809-821. [PMID: 33403372 DOI: 10.1039/d0ob02279a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach for the highly diastereoselective construction of functionalized cyclopenta[d][1,2]oxazines via sequential oxyamination and Pauson-Khand reaction of readily accessible propargylic alcohols has been developed. Furthermore, the ring closing metathesis of these N-O linked 1,7-enynes afforded vinylated-[1,2]oxazines in good yields. The reduction of the N-O bond of the obtained cyclopenta[d][1,2]oxazine is accomplished to access cyclopentenone-based amino alcohols.
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Affiliation(s)
- Raji Reddy Chada
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Roshan Chandrakant Kajare
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Mayur C Bhandari
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Siddique Z Mohammed
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Mahender Khatravath
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India.
| | - Kamalkishor Warudikar
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Nagender Punna
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad - 500007, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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21
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Pounder A, Ho A, Macleod M, Tam W. Chemistry of Unsymmetrical C1-Substituted Oxabenzonorbornadienes. Curr Org Synth 2021; 18:446-474. [PMID: 33402089 DOI: 10.2174/1570179417666210105121115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/23/2020] [Accepted: 11/30/2020] [Indexed: 11/22/2022]
Abstract
Oxabenzonorbornadiene (OBD) is a useful synthetic intermediate, which can be readily activated by transition metal complexes with great face selectivity due to its dual-faced nature and intrinsic angle strain on the alkene. To date, the understanding of transition-metal catalyzed reactions of OBD itself has burgeoned; however, this has not been the case for unsymmetrical OBDs. Throughout the development of these reactions, the nature of C1-substituent has proven to have a profound effect on both the reactivity and selectivity of the outcome of the reaction. Upon substitution, different modes of reactivity arise, contributing to the possibility of multiple stereo-, regio-, and in extreme cases, constitutional isomers, which can provide unique means of constructing a variety of synthetically useful cyclic frameworks. To maximize selectivity, an understanding of bridgehead substituent effects is crucial. To that end, this review outlines hitherto reported examples of bridgehead substituent effects on the chemistry of unsymmetrical C1-substituted OBDs.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Angel Ho
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Matthew Macleod
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Center for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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22
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Cochrane AR, Kerr WJ, Paterson LC, Pearson CM, Shaw P. Advances in the cobalt-catalysed Pauson-Khand reaction: Development of a sulfide-promoted, microwave-assisted protocol. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Wang JS, Wang Q, Zhu Y, Gao Q, Ying J, Wu XF. Cobalt-catalyzed carbonylative cycloaddition of substituted diynes to access complexed polycyclic compounds. Org Chem Front 2021. [DOI: 10.1039/d1qo00725d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cobalt-catalyzed domino Pauson–Khand and [4 + 2] cycloaddition of substituted diynes has been developed for the rapid construction of complexed polycyclic ring systems.
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Affiliation(s)
- Jian-Shu Wang
- Department of Chemistry
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Qi Wang
- Department of Chemistry
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yiwen Zhu
- Department of Chemistry
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Qian Gao
- Department of Chemistry
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jun Ying
- Department of Chemistry
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- 116023 Dalian
- China
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24
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Abstract
This review summarizes the visible light mediated strategies for the functionalization of allenes.
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Affiliation(s)
- Jitender Singh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India
| | - Anoop Sharma
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India
| | - Anuj Sharma
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India
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25
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Jang Y, Lindsay VNG. Synthesis of Cyclopentenones with Reverse Pauson–Khand Regiocontrol via Ni-Catalyzed C–C Activation of Cyclopropanone. Org Lett 2020; 22:8872-8876. [DOI: 10.1021/acs.orglett.0c03246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yujin Jang
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
| | - Vincent N. G. Lindsay
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695, United States
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26
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Hubbell AK, Coates GW. Nucleophilic Transformations of Lewis Acid-Activated Disubstituted Epoxides with Catalyst-Controlled Regioselectivity. J Org Chem 2020; 85:13391-13414. [PMID: 33076663 DOI: 10.1021/acs.joc.0c01691] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Due to their inherent ring strain and electrophilicity, epoxides are highly attractive building blocks for fundamental organic reactions. However, controlling the regioselectivity of disubstituted epoxide transformations is often particularly challenging. Most Lewis acid-mediated processes take advantage of intrinsic steric or electronic substrate bias to influence the site of nucleophilic attack. Therefore, the scope of many of these systems is frequently quite limited. Recent efforts to generate catalysts that can overcome substrate bias have expanded the synthetic utility of these well-known reactions. In this Perspective, we highlight various regioselective transformations of disubstituted epoxides, emphasizing those that have inspired the production of challenging, catalyst-controlled processes.
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Affiliation(s)
- Aran K Hubbell
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W Coates
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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27
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Peng C, Arya P, Zhou Z, Snyder SA. A Concise Total Synthesis of (+)-Waihoensene Guided by Quaternary Center Analysis. Angew Chem Int Ed Engl 2020; 59:13521-13525. [PMID: 32330370 PMCID: PMC7906115 DOI: 10.1002/anie.202004177] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Indexed: 11/07/2022]
Abstract
The four contiguous all-carbon quaternary centers of waihoensene, coupled with the absence of any traditional reactive functional groups other than a single alkene, render it a particularly challenging synthetic target among angular triquinane natural products. Here, we show that its polycyclic frame can be assembled concisely by using a strategically chosen quaternary center to guide the formation of the other three through judiciously selected C-C bond formation reactions. Those events, which included a unique Conia-ene cyclization and a challenging Pauson-Khand reaction, afforded a 17-step synthesis of the molecule in enantioenriched form.
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Affiliation(s)
- Cheng Peng
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Piyush Arya
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Zhiyao Zhou
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Scott A Snyder
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
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28
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Cheng MJ, Zhong LP, Gu CC, Zhu XJ, Chen B, Liu JS, Wang L, Ye WC, Li CC. Asymmetric Total Synthesis of Bufospirostenin A. J Am Chem Soc 2020; 142:12602-12607. [PMID: 32658467 DOI: 10.1021/jacs.0c05479] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first and asymmetric total synthesis of bioactive bufospirostenin A, an unusual spirostanol with rearranged A/B rings, was accomplished. The synthetically challenging [5-7-6-5] tetracyclic ring system, found in bufospirostenin A and some other natural products, was efficiently constructed by the unique intramolecular rhodium-catalyzed Pauson-Khand reaction of an alkoxyallene-yne. The 11 stereocenters in the final product, including the 10 contiguous stereocenters, were installed diastereoselectively.
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Affiliation(s)
- Min-Jing Cheng
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.,Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li-Ping Zhong
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen-Chen Gu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xu-Jiang Zhu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bo Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun-Shan Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Lei Wang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Wen-Cai Ye
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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29
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Peng C, Arya P, Zhou Z, Snyder SA. A Concise Total Synthesis of (+)‐Waihoensene Guided by Quaternary Center Analysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cheng Peng
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Piyush Arya
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Zhiyao Zhou
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Scott A. Snyder
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
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30
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Affiliation(s)
- Zhiping Yin
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Jian-Xing Xu
- 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
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, People’s Republic of China
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31
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Khan R, Chen J, Fan B. Versatile Catalytic Reactions of Norbornadiene Derivatives with Alkynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901494] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
- School of Chemistry and EnvironmentYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
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32
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Heravi MM, Dehghani M, Zadsirjan V, Ghanbarian M. Alkynes as Privileged Synthons in Selected Organic Name Reactions. Curr Org Synth 2020; 16:205-243. [PMID: 31975673 DOI: 10.2174/1570179416666190126100744] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 01/03/2018] [Accepted: 01/10/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Alkynes are actually basic chemicals, serving as privileged synthons for planning new organic reactions for assemblage of a reactive motif, which easily undergoes a further desirable transformation. Name reactions, in organic chemistry are referred to those reactions which are well-recognized and reached to such status for being called as their explorers, discoverers or developers. Alkynes have been used in various name reactions. In this review, we try to underscore the applications of alkynes as privileged synthons in prevalent name reactions such as Huisgen 1,3-dipolar cycloaddtion via Click reaction, Sonogashira reaction, and Hetero Diels-Alder reaction. OBJECTIVE In this review, we try to underscore the applications of alkynes as privileged synthons in the formation of heterocycles, focused on the selected reactions of alkynes as a synthon or impending utilization in synthetic organic chemistry, which have reached such high status for being included in the list of name reactions in organic chemistry. CONCLUSION Alkynes (including acetylene) are an unsaturated hydrocarbon bearing one or more triple C-C bond. Remarkably, alkynes and their derivatives are frequently being used as molecular scaffolds for planning new organic reactions and installing reactive functional group for further reaction. It is worth mentioning that in general, the terminal alkynes are more useful and more frequently being used in the art of organic synthesis. Remarkably, alkynes have found different applications in pharmacology, nanotechnology, as well as being known as appropriate starting precursors for the total synthesis of natural products and biologically active complex compounds. They are predominantly applied in various name reactions such as Sonogashira, Glaser reaction, Friedel-crafts reaction, Castro-Stephens coupling, Huisgen 1.3-dipolar cycloaddtion reaction via Click reaction, Sonogashira reaction, hetero-Diels-Alder reaction. In this review, we tried to impress the readers by presenting selected name reactions, which use the alkynes as either stating materials or precursors. We disclosed the applications of alkynes as a privileged synthons in several popular reactions, which reached to such high status being classified as name reactions. They are thriving and well known and established name reactions in organic chemistry such as Regioselective, 1,3-dipolar Huisgen cycloaddtion reaction via Click reaction, Sonogashira reaction and Diels-Alder reaction.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
| | - Mahzad Dehghani
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
| | - Manijheh Ghanbarian
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
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33
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Pathan SI, Chundawat NS, Chauhan NPS, Singh GP. A review on synthetic approaches of heterocycles via insertion-cyclization reaction. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1712609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | | | - Girdhar Pal Singh
- Department of Chemistry, Bhupal Nobles’ University, Udaipur, Rajasthan, India
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34
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Hensinger MJ, Dodge NJ, Brewer M. Substituted α-Alkylidene Cyclopentenones via the Intramolecular Reaction of Vinyl Cations with Alkenes. Org Lett 2020; 22:497-500. [PMID: 31873030 DOI: 10.1021/acs.orglett.9b04255] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Substituted α-alkylidene cyclopentenones are formed in up to 93% yield by the intramolecular capture of vinyl cations with pendent alkenes. An increased level of substitution at the β-position of the β-hydroxy-α-diazoketone starting material changed the course of the reaction to instead give a lactone product. A reaction path that involves bond reorganization via an acylium ion intermediate is proposed to explain these results. Substrate scope studies showed that more stable vinyl cations gave higher α-alkylidene cyclopentenone yields. This study provides a mild and efficient method to form α-alkylidene cyclopentenones that complements C-H insertion and Nazarov cyclization strategies.
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Affiliation(s)
- Magenta J Hensinger
- Department of Chemistry , The University of Vermont , Burlington , Vermont 05405 , United States
| | - Nicholas J Dodge
- Department of Chemistry , The University of Vermont , Burlington , Vermont 05405 , United States
| | - Matthias Brewer
- Department of Chemistry , The University of Vermont , Burlington , Vermont 05405 , United States
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35
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Guo J, Pham HD, Wu YB, Zhang D, Wang X. Mechanism of Cobalt-Catalyzed Direct Aminocarbonylation of Unactivated Alkyl Electrophiles: Outer-Sphere Amine Substitution To Form Amide Bond. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04736] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jiandong Guo
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, P. R. China
- Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Hai D. Pham
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
| | - Yan-Bo Wu
- Institute of Molecular Science, Shanxi University, Taiyuan 030006, P. R. China
| | - Dongju Zhang
- Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xiaotai Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, P. R. China
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
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36
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37
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Wang Y, Liu K, Yu ZX, Jia Y. Type-II Pauson-Khand reaction of 1,8-enyne in the attempt of building 7/5 ring of (-)-caribenol A and DFT understanding. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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38
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Kaur N. Cobalt-catalyzed C–N, C–O, C–S bond formation: synthesis of heterocycles. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01731-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Mishima N, Ogawa T, Tanabe G, Muraoka O, Wasada H, Hatae N, Yoshimatsu M. Synthesis of Thiazinoimidazoles by Lewis Acid-Catalyzed [3+3] Cycloaddition Reactions of Propargyl Alcohols with 2-Mercaptoimidazoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Naoya Mishima
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Takahiro Ogawa
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Genzoh Tanabe
- Faculty of Pharmaceuticy; The Kindai University; Kowakae 3-4-1, Higashi-osaka 577-8502 Osaka Japan
| | - Osamu Muraoka
- Faculty of Pharmaceuticy; The Kindai University; Kowakae 3-4-1, Higashi-osaka 577-8502 Osaka Japan
| | - Hiroaki Wasada
- Department of Chemistry; Faculty of Regional Study; Gifu University; Gifu Japan
| | - Noriyuki Hatae
- School of Pharmaceutical Sciences; Faculty of Regional Study; Health Science University of Hokkaido; Ishikari- 061-0293 Tobetsu Hokkaido Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry; Faculty of Education Gifu University; Yanagido 1-1 501-1193 Gifu Japan
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40
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Affiliation(s)
- Naifeng Hu
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Changming Dong
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Cuifang Zhang
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Guangxin Liang
- State Key Laboratory of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
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41
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Hu N, Dong C, Zhang C, Liang G. Total Synthesis of (-)-Indoxamycins A and B. Angew Chem Int Ed Engl 2019; 58:6659-6662. [PMID: 30835916 DOI: 10.1002/anie.201902043] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Indexed: 11/07/2022]
Abstract
The concise total syntheses of (-)-indoxamycins A and B is reported. The chemistry features a seven-step preparation of a highly congested [5.5.6] tricyclic advanced common intermediate from a readily available R-carvone derivative. Key steps involve a Pauson-Khand reaction for the rapid construction of a basic scaffold bearing a quaternary carbon, a copper-catalyzed Michael addition for the introduction of another adjacent all-carbon quaternary stereocenter, and a tandem retro-oxa-Michael addition/1,2-addition/oxa-Michael addition for the installation of a trisubstituted olefin side chain. This synthetic strategy allows for easy access to both enantiomers of this family of natural products and their analogues from cost-effective starting material through straightforward chemical transformations.
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Affiliation(s)
- Naifeng Hu
- State Key Laboratory of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Changming Dong
- State Key Laboratory of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Cuifang Zhang
- State Key Laboratory of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Guangxin Liang
- State Key Laboratory of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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42
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Theoretical prediction on the reactivity of the Co-mediated intramolecular Pauson-Khand reaction for constructing bicyclo-skeletons in natural products. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.03.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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Synthesis of Aromatic Rings Embedded in Polycyclic Scaffolds by Triyne Cycloaddition: Competition between Carbonylative and Non-Carbonylative Pathways. Molecules 2019; 24:molecules24030595. [PMID: 30736454 PMCID: PMC6384885 DOI: 10.3390/molecules24030595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/02/2022] Open
Abstract
Cycloadditions have emerged as some of the most useful reactions for the formation of polycyclic compounds. The carbonylative cycloaddition of triynes can lead to carbonylative and non-carbonylative competitive pathways, each leading to the formation of an aromatic ring. We report herein the one-pot synthesis of fully- and unsymmetrically-substituted tetracyclic 6,5,7,5-troponic and 6,5,6,5-benzenoid scaffolds using pre-organized triynes showing the competition between these two pathways.
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44
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Millham AB, Kier MJ, Leon RM, Karmakar R, Stempel ZD, Micalizio GC. A Complementary Process to Pauson-Khand-Type Annulation Reactions for the Construction of Fully Substituted Cyclopentenones. Org Lett 2019; 21:567-570. [PMID: 30614709 PMCID: PMC6465167 DOI: 10.1021/acs.orglett.8b03922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A complementary process to the Pauson-Khand annulation is described that is well suited to forging densely substituted/oxygenated cyclopentenone products (including fully substituted variants). The reaction is thought to proceed through a sequence of metallacycle-mediated bond-forming events that engages an internal alkyne and a β-keto ester in an annulation process that forges two C-C bonds. A variant of this annulation process has also been established that delivers deoxygenated cyclopentenones that lack the allylic tertiary alcohol.
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Affiliation(s)
- Adam B Millham
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
| | - Matthew J Kier
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
| | - Robert M Leon
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
| | - Rajdip Karmakar
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
| | - Zachary D Stempel
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
| | - Glenn C Micalizio
- Department of Chemistry , Dartmouth College , Burke Laboratory, Hanover , New Hampshire 03755 , United States
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45
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Yang T, Xia WJ, Shang JQ, Li Y, Wang XX, Sun M, Li YM. Metal-Free Radical [2 + 2 + 1] Cyclization of ortho-Cyanoarylacrylamides with Alkyl Nitriles: Synthesis of Pyrrolo[3,2- c]quinolines. Org Lett 2019; 21:444-447. [PMID: 30588816 DOI: 10.1021/acs.orglett.8b03638] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A novel radical [2 + 2 + 1] cyclization of ortho-cyanoarylacrylamides with dual α-C-H bonds in alkyl nitriles has been developed. The reaction provides new facile and straightforward access to cyano-substituted pyrrolo[3,2- c]quinolines, which are important nitrogen-containing polyheterocycles. A possible mechanism for the transformation is proposed.
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Affiliation(s)
- Tao Yang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
| | - Wen-Jin Xia
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
| | - Jia-Qi Shang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
| | - Yi Li
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
| | - Xiang-Xiang Wang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
| | - Meng Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , China
| | - Ya-Min Li
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , China
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46
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Cui J, Meng L, Chi X, Liu Q, Zhao P, Zhang DP, Chen L, Li X, Dong Y, Liu H. A palladium-catalyzed regiocontrollable hydroarylation reaction of allenamides with B2pin2/H2O. Chem Commun (Camb) 2019; 55:4355-4358. [DOI: 10.1039/c9cc00797k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel palladium-catalyzed regiocontrollable hydroarylation reaction of allenamides with B2pin2/H2O has been disclosed.
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Affiliation(s)
- Jie Cui
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Long Meng
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Xiaochen Chi
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Qing Liu
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Pingping Zhao
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao
- P. R. China
| | - Dao-peng Zhang
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Lei Chen
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Xinjin Li
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Yunhui Dong
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Hui Liu
- School of Chemistry & Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
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47
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Ma K, Martin BS, Yin X, Dai M. Natural product syntheses via carbonylative cyclizations. Nat Prod Rep 2019; 36:174-219. [PMID: 29923586 DOI: 10.1039/c8np00033f] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the application of various transition metal-catalyzed/mediated carbonylative cyclization reactions in natural product total synthesis.
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Affiliation(s)
- Kaiqing Ma
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Brandon S. Martin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Xianglin Yin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Mingji Dai
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
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48
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Raji Reddy C, Warudikar K, Sridhar B. Synthetic Access to Cyclopenta[ a]inden-2(1 H)-ones from Morita-Baylis-Hillman Products of 2-Alkynyl Benzaldehydes. ACS OMEGA 2018; 3:15734-15742. [PMID: 31458226 PMCID: PMC6644149 DOI: 10.1021/acsomega.8b02111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 11/07/2018] [Indexed: 06/10/2023]
Abstract
A new strategy for the synthesis of cyclopenta[a]inden-2(1H)-ones has been developed. An intramolecular Pauson-Khand reaction of the Morita-Baylis-Hillman (MBH) adducts, derived from 2-alkynyl benzaldehydes, provided the consequent novel cyclopenta[a]inden-2(1H)-ones bearing multifunctionalities including an ester group at the fused ring junction (tert-carbon center). The generality of this approach was illustrated by studying the several MBH derivatives containing diverse substitutions/functionalities.
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Affiliation(s)
- Chada Raji Reddy
- Department
of Organic Synthesis & Process Chemistry and Centre for X-Ray
Crystallography, CSIR—Indian Institute
of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Kamalkishor Warudikar
- Department
of Organic Synthesis & Process Chemistry and Centre for X-Ray
Crystallography, CSIR—Indian Institute
of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Balasubramanian Sridhar
- Department
of Organic Synthesis & Process Chemistry and Centre for X-Ray
Crystallography, CSIR—Indian Institute
of Chemical Technology, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
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49
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Ayres JN, Williams MTJ, Tizzard GJ, Coles SJ, Ling KB, Morrill LC. Synthesis and Reactivity of N-Allenyl Cyanamides. Org Lett 2018; 20:5282-5285. [DOI: 10.1021/acs.orglett.8b02225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James N. Ayres
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Matthew T. J. Williams
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Graham J. Tizzard
- UK National Crystallographic Service, Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Simon J. Coles
- UK National Crystallographic Service, Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Kenneth B. Ling
- Syngenta, Jealott’s Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Louis C. Morrill
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
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50
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Liang H, Meng L, Chi X, Yao S, Chen H, Jiao L, Liu Q, Zhang D, Liu H, Dong Y. Palladium/Copper Co-Catalyzed Cascade Metallo-ene/Sonogashira Coupling Reaction of Allenamides. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800377] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hanbing Liang
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Long Meng
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Xiaochen Chi
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Shuzhi Yao
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hongshuai Chen
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Luyang Jiao
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Qing Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Daopeng Zhang
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hui Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
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