1
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Wang X, Zhou AH, Hu TQ, Xu Z, Zhou B, Ye LW. Gold Catalysis, Asymmetric Friedel-Crafts Alkylation Cascade for One-Pot Synthesis of Chiral Dihydrocarbazoles and Dihydrodibenzofurans. Org Lett 2024; 26:2051-2056. [PMID: 38436250 DOI: 10.1021/acs.orglett.4c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
A one-pot gold-catalyzed acyl migration followed by ytterbium-catalyzed asymmetric Friedel-Crafts alkylation is disclosed, leading to the rapid synthesis of chiral dihydrocarbazoles and dihydrodibenzofuran in generally moderate to good overall yields with good to excellent enantioselectivities. The gold-catalyzed acyl migration of propargyl acetates generates α-ylidene-β-diketones with high E/Z ratios, which are then subjected to the ytterbium-catalyzed asymmetric Friedel-Crafts alkylation without any purification. Importantly, this protocol provides a new type of substrate for asymmetric Friedel-Crafts alkylation.
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Affiliation(s)
- Xuan Wang
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ai-Hua Zhou
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tian-Qi Hu
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Bo Zhou
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Key Laboratory for Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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2
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Dickinson CF, Yap GPA, Tius MA. Anion-accelerated asymmetric Nazarov cyclization: access to vicinal all-carbon quaternary stereocenters. Org Biomol Chem 2023; 21:5014-5020. [PMID: 37265330 PMCID: PMC10372926 DOI: 10.1039/d3ob00735a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have developed a catalytic asymmetric Nazarov cyclization that results in the formation of two contiguous all-carbon quaternary stereocenters in high yield with excellent levels of asymmetric induction. This method requires no catalyst recognition elements in the starting materials that are simple diketoesters. Geometrically pure E or Z isomers of the starting material lead to diastereomerically pure products with high enantioselectivity because the species that undergoes cyclization is a rhodium enolate that is configurationally stable.
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Affiliation(s)
- Cody F Dickinson
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA.
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Marcus A Tius
- Department of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA.
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3
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Kubota Y, Fukuzumi J, Saito K, Yamada T. Experimental Investigation of Microwave-Specific Effect on Nazarov Cyclization. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yusuke Kubota
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Junichiro Fukuzumi
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Kodai Saito
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Tohru Yamada
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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4
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Wei J, Tang Y, Yang Q, Li H, He D, Cai Y. Asymmetric Ketoalkylation/Rearrangement of Alkyenlfurans via Synergistic Photoredox/Brønsted Acid Catalysis. Org Lett 2022; 24:7928-7933. [PMID: 36269030 DOI: 10.1021/acs.orglett.2c03040] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An enantioselective three-component rearrangement of alkenylfurans with various cycloalkyl silyl peroxides and anilines has been developed by merging photoredox catalysis with chiral Brønsted acid catalysis. This protocol provides expedient access to a broad spectrum of ketoalkyl-functionalized 4-aminocyclopentenones in high yields with excellent enantio- and diastereoselectivities. Diverse functional groups can be introduced via facile product derivations.
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Affiliation(s)
- Jie Wei
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yurong Tang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Qian Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Hongxiang Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Dongxian He
- Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Yunfei Cai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
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5
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Wang L, Tang Y. Side arm modified chiral bisoxazoline ligands: Recent development and prospect in asymmetric catalysis. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Solas M, Suárez‐Pantiga S, Sanz R. Asymmetric Gold(I)‐Catalyzed Tandem Hydroarylation–Nazarov Cyclization: Enantioselective Access to Cyclopentenones. Angew Chem Int Ed Engl 2022; 61:e202207406. [PMID: 35785510 PMCID: PMC9544548 DOI: 10.1002/anie.202207406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Indexed: 11/13/2022]
Abstract
The asymmetric synthesis of cyclopentachromenones from gold‐catalyzed reaction of readily available skipped alkenynones is described. This cascade reaction involves an initial anti‐Michael hydroarylation of the ynone moiety to form a gold‐functionalized dialkenylketone intermediate, followed by a Nazarov cyclization that proceeds in an unprecedented enantioselective manner. Excellent enantiomeric ratios and chemical yields are obtained under mild reaction conditions.
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Affiliation(s)
- Marta Solas
- Área de Química Orgánica. Departamento de Química Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos 09001 Burgos Spain
| | - Samuel Suárez‐Pantiga
- Área de Química Orgánica. Departamento de Química Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos 09001 Burgos Spain
| | - Roberto Sanz
- Área de Química Orgánica. Departamento de Química Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos 09001 Burgos Spain
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7
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Motiwala HF, Armaly AM, Cacioppo JG, Coombs TC, Koehn KRK, Norwood VM, Aubé J. HFIP in Organic Synthesis. Chem Rev 2022; 122:12544-12747. [PMID: 35848353 DOI: 10.1021/acs.chemrev.1c00749] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic species, transfer protons, and engage in a range of other intermolecular interactions. The use of this solvent has exponentially increased in the past decade and has become a solvent of choice in some areas, such as C-H functionalization chemistry. In this review, following a brief history of HFIP in organic synthesis and an overview of its physical properties, literature examples of organic reactions using HFIP as a solvent or an additive are presented, emphasizing the effect of solvent of each reaction.
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Affiliation(s)
- Hashim F Motiwala
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Ahlam M Armaly
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jackson G Cacioppo
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Thomas C Coombs
- Department of Chemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403 United States
| | - Kimberly R K Koehn
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Verrill M Norwood
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jeffrey Aubé
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
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8
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Solas M, Suárez-Pantiga S, Sanz R. Asymmetric Gold(I)‐Catalyzed Tandem Hydroarylation‐Nazarov Cyclization: Enantioselective Access to Cyclopentenones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marta Solas
- Universidad de Burgos Química Facultad de CienciasPza. Misael Bañuelos, s/n 09001 Burgos SPAIN
| | - Samuel Suárez-Pantiga
- Universidad de Burgos Química Facultad de CienciasPza. Misael Bañuelos, s/n 09001 Burgos SPAIN
| | - Roberto Sanz
- Universidad de Burgos Área de Química Orgánica Departamento de Química Facultad de Ciencias Pza. Misael Bañuelos s/n 09001 Burgos SPAIN
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9
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Chu WD, Liang TT, Ni H, Dong ZH, Shao Z, Liu Y, He CY, Bai R, Liu QZ. Palladium-Catalyzed Intermolecular Asymmetric Dearomative Annulation of Phenols with Vinyl Cyclopropanes. Org Lett 2022; 24:4865-4870. [PMID: 35775729 DOI: 10.1021/acs.orglett.2c01594] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report the Pd(0)-catalyzed intermolecular asymmetric dearomative [3 + 2] annulation of phenols with vinyl cyclopropanes via in situ generated ortho-quinone methide intermediates. A series of highly functionalized spiro-[5,6] bicycles which bear three contiguous stereogenic centers including one all-carbon quaternary were obtained with excellent stereoselectivities. Density functional theory (DFT) calculations indicate that the reactions were controlled by thermodynamics.
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Affiliation(s)
- Wen-Dao Chu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China.,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, P. R. China
| | - Tian-Tian Liang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China
| | - Hao Ni
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, P. R. China
| | - Zhi-Hong Dong
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan Provincial Center for Research & Development of Natural Products, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, P. R. China
| | - Yong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China
| | - Cheng-Yu He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, P. R. China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, No. 1, Shida Road, Nanchong 637002, P. R. China
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10
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Enyne diketones as substrate in asymmetric Nazarov cyclization for construction of chiral allene cyclopentenones. Nat Commun 2022; 13:3146. [PMID: 35672319 PMCID: PMC9174488 DOI: 10.1038/s41467-022-30846-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/17/2022] [Indexed: 11/08/2022] Open
Abstract
The Nazarov cyclization is one of the most powerful tools for the stereoselective synthesis of various cyclopentenone scaffolds. Therefore, developing the new classes substrate of Nazarov reaction is an important endeavor in synthetic chemistry. Herein, we report enyne diketones, enables diastereo- and enantioselective construction of chiral allene cyclopentenones in moderate to good yields with good enantioselectivities (up to 97% ee). Importantly, it is a typical example for asymmetric synthesis of cyclopentanones with allene moiety using Nazarov cyclisation. Mechanistic studies indicate that this metal-organo relay catalysis protocol involves a rhodium-catalyzed tandem oxonium ylide formation/[2,3]-sigmatropic rearrangement/reverse benzylic acid rearrangement, followed by organo-catalyzed asymmetric Nazarov cyclization/alkyne-to-allene isomerization to give the final chiral allene cyclopentenones.
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11
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Wang YP, Fang K, Tu YQ, Yin JJ, Zhao Q, Ke T. An efficient approach to angular tricyclic molecular architecture via Nazarov-like cyclization and double ring-expansion cascade. Nat Commun 2022; 13:2335. [PMID: 35484150 PMCID: PMC9050659 DOI: 10.1038/s41467-022-29947-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/17/2022] [Indexed: 01/13/2023] Open
Abstract
A modular and efficient method for constructing angular tri-carbocyclic architectures containing quaternary carbon center(s) from 1,3-dicycloalkylidenyl ketones is established, which involves an unconventional synergistic cascade of a Nazarov cyclization and two ring expansions. It features high selectivity, mild conditions and convenient operation, wide scope and easy availability of substrate. Substitution with R1 and R2 at the 4πe-system with electron-donating group favors this reaction, while that with electron-withdrawing group or proton disfavors. The electron-donating group as R1 directs the initial ring expansion at its own site, while the p-π- or n-π- associated substituent as R2 favors selectively the later ring expansion near its location because of the beneficial maintenance of an original conjugated system. The stereoselectivity has proved to be governed by either the steric effect of R3 and R4 at the expanded rings, or the migration ability of the migrating atom. Density Functional Theory calculation suggests the initial Nazarov cyclization would be the rate-determining step. A racemic total synthesis of the natural (±)-waihoensene is realized in 18 steps by use of this methodology.
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Affiliation(s)
- Yun-Peng Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Kun Fang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China. .,State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Jun-Jie Yin
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China.,A training graduate student from Harbin Institute of Technology, Shenzhen, 518055, China
| | - Qi Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tian Ke
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
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12
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Wright AJ, McMartin FJ, Dyer LG, Sayer LH, Bulman Page PC, Stephenson GR. Planar Chiral Pseudo‐Isocoumarins by Copper Catalysed Desymmetrisation. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100841] [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)
- Adam J. Wright
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
| | - Fiona J. McMartin
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
| | - Liam G. Dyer
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
| | - Lloyd H. Sayer
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
| | - Philip C. Bulman Page
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
| | - G. Richard Stephenson
- School of Chemistry University of East Anglia Norwich Research Park Norwich NR4 7TJ UK
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13
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Janas A, Pyta K, Gdaniec M, Przybylski P. An Approach to Modify 14-Membered Lactone Macrolide Antibiotic Scaffolds. J Org Chem 2022; 87:3758-3761. [PMID: 35020381 PMCID: PMC8902751 DOI: 10.1021/acs.joc.1c02799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A ketolide derivative
with (12R)-configuration
was obtained via a novel ketene acetal in acidic conditions. The structure
of this atypical β-keto ketene acetal intermediate within the
macrocyclic system has been determined by NMR and X-ray methods. The
use of basic conditions at an elevated temperature yielded new, doubly
α,β-unsaturated ketone macrolide derivatives with (4E)-configuration as two conformational isomers of folded-in
or folded-out conformations.
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Affiliation(s)
- Anna Janas
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Krystian Pyta
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Maria Gdaniec
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Piotr Przybylski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
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14
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Connon R, Roche B, Rokade BV, Guiry PJ. Further Developments and Applications of Oxazoline-Containing Ligands in Asymmetric Catalysis. Chem Rev 2021; 121:6373-6521. [PMID: 34019404 PMCID: PMC8277118 DOI: 10.1021/acs.chemrev.0c00844] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 12/27/2022]
Abstract
The chiral oxazoline motif is present in many ligands that have been extensively applied in a series of important metal-catalyzed enantioselective reactions. This Review aims to provide a comprehensive overview of the most significant applications of oxazoline-containing ligands reported in the literature starting from 2009 until the end of 2018. The ligands are classified not by the reaction to which their metal complexes have been applied but by the nature of the denticity, chirality, and donor atoms involved. As a result, the continued development of ligand architectural design from mono(oxazolines), to bis(oxazolines), to tris(oxazolines) and tetra(oxazolines) and variations thereof can be more easily monitored by the reader. In addition, the key transition states of selected asymmetric transformations will be given to illustrate the features that give rise to high levels of asymmetric induction. As a further aid to the reader, we summarize the majority of schemes with representative examples that highlight the variation in % yields and % ees for carefully selected substrates. This Review should be of particular interest to the experts in the field but also serve as a useful starting point to new researchers in this area. It is hoped that this Review will stimulate both the development/design of new ligands and their applications in novel metal-catalyzed asymmetric transformations.
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Affiliation(s)
- Robert Connon
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Brendan Roche
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Balaji V. Rokade
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
| | - Patrick J. Guiry
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
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15
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Synthesis of rigid chiral C3-symmetric triptycene-based ligands and their application in enantioselective Cu(I)-catalyzed aziridination of chalcones. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121804] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Cao J, Hu MY, Liu SY, Zhang XY, Zhu SF, Zhou QL. Enantioselective Silicon-Directed Nazarov Cyclization. J Am Chem Soc 2021; 143:6962-6968. [PMID: 33909970 DOI: 10.1021/jacs.1c01194] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The Nazarov electrocyclization reaction is a convenient, widely used method for construction of cyclopentenones. In the past few decades, catalytic asymmetric versions of the reaction have been extensively studied, but the strategies used to control the position of the double bond limit the substituent pattern of the products and thus the synthetic applications of the reaction. Herein, we report highly enantioselective silicon-directed Nazarov reactions which were cooperatively catalyzed by a Lewis acid and a chiral Brønsted acid. The chiral cyclopentenones we synthesized using this method generally cannot be obtained by means of other catalytic enantioselective reactions, including previously reported methods for enantioselective Nazarov cyclization. The silicon group in the dienone substrate stabilized the β-carbocation of the intermediate, thereby determining the position of the double bond in the product. Mechanistic studies suggested that the combination of Lewis and Brønsted acids synergistically activated the dienone substrate and that the enantioselectivity of the reaction originated from a chiral Brønsted acid promoted proton transfer reaction of the enol intermediate.
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Affiliation(s)
- Jin Cao
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Meng-Yang Hu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Si-Yuan Liu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xin-Yu Zhang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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17
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Chen Z, Kong X, Niu S, Yang S, Liu J, Chen B, Luo B, Zhou C, Ding C, Fang X. N-Heterocyclic Carbene-Catalyzed Asymmetric Synthesis of Cyclopentenones. Org Lett 2021; 23:3403-3408. [PMID: 33844550 DOI: 10.1021/acs.orglett.1c00870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
N-Heterocyclic carbene-catalyzed asymmetric construction of cyclopentenones using enals and α-diketones is achieved, furnishing a series of highly functionalized cyclopentenones in a highly diastereo- and enantioselective manner. The protocol tolerates substrates with both aromatic and aliphatic groups, and further transformations of the products delivered a range of value-added molecules.
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Affiliation(s)
- Zhizhou Chen
- College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Xiangwen Kong
- State Key Laboratory of Structural Chemistry and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shengtong Niu
- State Key Laboratory of Structural Chemistry and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Bolai Chen
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Benlong Luo
- Pingxiang University, Pingxiang 337055, China
| | - Changyu Zhou
- College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Chenglin Ding
- College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Xinqiang Fang
- College of Chemistry, Fuzhou University, Fuzhou 350116, China.,State Key Laboratory of Structural Chemistry and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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18
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Shen B, He Q, Dong S, Liu X, Feng X. A chiral cobalt(ii) complex catalyzed enantioselective aza-Piancatelli rearrangement/Diels-Alder cascade reaction. Chem Sci 2020; 11:3862-3867. [PMID: 34122854 PMCID: PMC8152720 DOI: 10.1039/d0sc00542h] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A chiral N,N′-dioxide/cobalt(ii) complex catalyzed highly diastereoselective and enantioselective tandem aza-Piancatelli rearrangement/intramolecular Diels–Alder reaction has been disclosed. Various valuable hexahydro-2a,5-epoxycyclopenta[cd]isoindoles bearing six contiguous stereocenters have been obtained in good yields with excellent diastereo- and enantio-selectivities from a wide range of both readily available 2-furylcarbinols and N-(furan-2-ylmethyl)anilines. An asymmetric aza-Piancatelli rearrangement/Diels–Alder cascade reaction between 2-furylcarbinols and N-(furan-2-ylmethyl)anilines was realized by using a chiral N,N′-dioxide/cobalt(ii) complex catalyst.![]()
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Affiliation(s)
- Bin Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Qianwen He
- 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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19
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Li Y, Zhang Y, Zhang H, Han Y, Zhao J. Asymmetric Epoxidation of α,β‐Unsaturated Ketones Catalyzed by Chiral Iron Complexes of (R,R)‐3,4‐Diaminopyrrolidine Derived N4‐Ligands with Camphorsulfonyl Sidearms. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanfeng Li
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 P. R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 P. R. China
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources UtilizationHebei University of Technology Tianjin 300130 P. R. China
| | - Hong‐Yu Zhang
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 P. R. China
| | - Ya‐Ping Han
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 P. R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy SavingHebei University of Technology Tianjin 300130 P. R. China
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20
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Hu H, Xu J, Wang F, Dong S, Liu X, Feng X. Chiral Sc III- N, N'-Dioxide-Catalyzed 1,3-Dipolar Cycloaddition of Diaziridines with Chalcones. Org Lett 2019; 22:93-97. [PMID: 31833774 DOI: 10.1021/acs.orglett.9b04007] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly enantioselective 1,3-dipolar cycloaddition of meso-diaziridines with chalcones was realized by utilizing the ScIII-N,N'-dioxide complex as the catalyst. In this transformation, the 1,3-dipole intermediates generated from the C-N bond cleavage of diaziridine were trapped by chiral N,N'-dioxide/scandium(III) complex activated chalcones to undergo enantioselective 1,3-dipolar cycloaddition. A range of chiral 1,5-diazabicylo[3.3.0]octane derivatives were readily synthesized in good yields with high diastereo- and enantioselectivities.
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Affiliation(s)
- Haipeng Hu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Jinxiu Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Fang Wang
- 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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21
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Affiliation(s)
- Luisa Lempenauer
- Université Côte d'Azur, CNRSInstitut de Chimie de Nice UMR 7272 Parc Valrose 06108 Nice Cedex 2 France
| | - Gilles Lemière
- Sorbonne Université, CNRSInstitut Parisien de Chimie Moléculaire 4 Place Jussieu, CC 229 75252 Paris Cedex 05 France
| | - Elisabet Duñach
- Université Côte d'Azur, CNRSInstitut de Chimie de Nice UMR 7272 Parc Valrose 06108 Nice Cedex 2 France
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22
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González-Pérez AB, Villar P, de Lera AR. A Computational Study of Model Parent Systems and Reported Aza-(Iso)Nazarov/Aza-(Iso)Piancatelli Electrocyclic Reactions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Adán B. González-Pérez
- University of Vigo; Department of Organic Chemistry and Center of Biomedical Research (CINBIO); Lagoas-Marcosende 36310 Vigo Spain
| | - Pedro Villar
- University of Vigo; Department of Organic Chemistry and Center of Biomedical Research (CINBIO); Lagoas-Marcosende 36310 Vigo Spain
| | - Angel R. de Lera
- University of Vigo; Department of Organic Chemistry and Center of Biomedical Research (CINBIO); Lagoas-Marcosende 36310 Vigo Spain
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23
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Zhang Q, Jia X, Yin L. Catalytic asymmetric borylative aldol reaction of 5,6-dihydro-2H-pyran-2-one and ketones. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Gan XC, Yin L. Asymmetric Borylative Propargylation of Ketones Catalyzed by a Copper(I) Complex. Org Lett 2019; 21:931-936. [DOI: 10.1021/acs.orglett.8b03912] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xu-Cheng Gan
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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25
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Affiliation(s)
- Lijia Wang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
| | - Jian Zhou
- School of Chemistry; East China Normal University; 3663N Zhongshan Road, Shanghai 300062 China
| | - Yong Tang
- The State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
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26
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Zhang H, Lu Z. Nickel/Copper Dual Catalysis for Sequential Nazarov Cyclization/Decarboxylative Aldol Reaction. Org Lett 2018; 20:5709-5713. [PMID: 30160123 DOI: 10.1021/acs.orglett.8b02426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A nickel/copper cocatalyzed sequential Nazarov cyclization/decarboxylative aldol reaction is reported. Various β-hydroxycyclopentenones containing three contiguous stereocenters were prepared in good yields with high diastereoselectivities. A gram-scale reaction and further derivatizations were easily achieved to highlight the synthetic utility of this transformation. Preliminary attempts for sequential asymmetric transformation were also conducted.
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Affiliation(s)
- Heyi Zhang
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Zhan Lu
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
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27
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Süsse L, Vogler M, Mewald M, Kemper B, Irran E, Oestreich M. Enantioselektive Nazarov-Cyclisierungen, die von einer axial-chiralen, C 6
F 5
-substituierten Bor-Lewis-Säure katalysiert werden. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lars Süsse
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Deutschland
| | - Maria Vogler
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Deutschland
| | - Marius Mewald
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Deutschland
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Benedict Kemper
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Elisabeth Irran
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Deutschland
| | - Martin Oestreich
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Deutschland
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
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28
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Süsse L, Vogler M, Mewald M, Kemper B, Irran E, Oestreich M. Enantioselective Nazarov Cyclizations Catalyzed by an Axial Chiral C6
F5
-Substituted Boron Lewis Acid. Angew Chem Int Ed Engl 2018; 57:11441-11444. [PMID: 29978948 DOI: 10.1002/anie.201806011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Lars Süsse
- Institut für Chemie; Technische Universität Berlin; Strasse des 17. Juni 115 10623 Berlin Germany
| | - Maria Vogler
- Institut für Chemie; Technische Universität Berlin; Strasse des 17. Juni 115 10623 Berlin Germany
| | - Marius Mewald
- Institut für Chemie; Technische Universität Berlin; Strasse des 17. Juni 115 10623 Berlin Germany
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Benedict Kemper
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Elisabeth Irran
- Institut für Chemie; Technische Universität Berlin; Strasse des 17. Juni 115 10623 Berlin Germany
| | - Martin Oestreich
- Institut für Chemie; Technische Universität Berlin; Strasse des 17. Juni 115 10623 Berlin Germany
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
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29
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Fan T, Wang A, Li JQ, Ye JL, Zheng X, Huang PQ. Versatile One-Pot Synthesis of Polysubstituted Cyclopent-2-enimines from α,β-Unsaturated Amides: Imino-Nazarov Reaction. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805641] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Fan
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Ao Wang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Jia-Qi Li
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Jian-Liang Ye
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Xiao Zheng
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; Xiamen Fujian 361005 P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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30
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Fan T, Wang A, Li JQ, Ye JL, Zheng X, Huang PQ. Versatile One-Pot Synthesis of Polysubstituted Cyclopent-2-enimines from α,β-Unsaturated Amides: Imino-Nazarov Reaction. Angew Chem Int Ed Engl 2018; 57:10352-10356. [PMID: 29924902 DOI: 10.1002/anie.201805641] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Indexed: 01/03/2023]
Abstract
The imino-Nazarov cyclization of the polysubstituted pentan-1,4-diene-3-imines was realized. To this aim, a one-pot procedure involving reductive alkenyliminylation of α,β-unsaturated secondary amides with potassium organotrifluoroborates, followed by acid-catalyzed imino-Nazarov cyclization of the polysubstituted pentan-1,4-diene-3-imine intermediates, was studied systematically. This mild, operationally simple, flexible, and high-yielding protocol efficiently affords polysubstituted pentan-1,4-diene-3-imines, cyclopentenimines, and α-amino cyclopentenones, which are useful scaffolds in organic synthesis. The substituent effect at the C2 position of the polysubstituted pentan-1,4-diene-3-imines was studied by means of density-functional theory calculations. Results suggested that the electron-donating group facilitates the imino-Nazarov cyclization process.
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Affiliation(s)
- Ting Fan
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Ao Wang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Jia-Qi Li
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Jian-Liang Ye
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Xiao Zheng
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
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31
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Zhang H, Cheng B, Lu Z. Enantioselective Cobalt-Catalyzed Sequential Nazarov Cyclization/Electrophilic Fluorination: Access to Chiral α-Fluorocyclopentenones. Org Lett 2018; 20:4028-4031. [DOI: 10.1021/acs.orglett.8b01597] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Heyi Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Biao Cheng
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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32
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Karad SN, Panchal H, Clarke C, Lewis W, Lam HW. Enantioselective Synthesis of Chiral Cyclopent-2-enones by Nickel-Catalyzed Desymmetrization of Malonate Esters. Angew Chem Int Ed Engl 2018; 57:9122-9125. [PMID: 29768708 PMCID: PMC6485403 DOI: 10.1002/anie.201805578] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Indexed: 11/08/2022]
Abstract
The enantioselective synthesis of highly functionalized chiral cyclopent‐2‐enones by the reaction of alkynyl malonate esters with arylboronic acids is described. These desymmetrizing arylative cyclizations are catalyzed by a chiral phosphinooxazoline/nickel complex, and cyclization is enabled by the reversible E/Z isomerization of alkenylnickel species. The general methodology is also applicable to the synthesis of 1,6‐dihydropyridin‐3(2H)‐ones.
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Affiliation(s)
- Somnath Narayan Karad
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Heena Panchal
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Christopher Clarke
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.,School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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33
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Karad SN, Panchal H, Clarke C, Lewis W, Lam HW. Enantioselective Synthesis of Chiral Cyclopent-2-enones by Nickel-Catalyzed Desymmetrization of Malonate Esters. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805578] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Somnath Narayan Karad
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Heena Panchal
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Christopher Clarke
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - William Lewis
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus; Triumph Road Nottingham NG7 2TU UK
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
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34
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Congmon J, Tius MA. Contiguous Quaternary Centers from a Au
I
‐Catalyzed Nazarov Cyclization. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jonathan Congmon
- Chemistry Department University of Hawaii at Manoa 2545 The Mall 96822 Honolulu HI USA
| | - Marcus A. Tius
- Chemistry Department University of Hawaii at Manoa 2545 The Mall 96822 Honolulu HI USA
- University of Hawaii Cancer Center 701 Ilalo Street 96813 Honolulu HI USA
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35
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Mietke T, Cruchter T, Larionov VA, Faber T, Harms K, Meggers E. Asymmetric Nazarov Cyclizations Catalyzed by Chiral-at-Metal Complexes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701546] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Thomas Mietke
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Thomas Cruchter
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Vladimir A. Larionov
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
- Department of Inorganic Chemistry; Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklaya St. 6 117198 Moscow Russian Federation
| | - Tabea Faber
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Eric Meggers
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
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36
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Wang CS, Wu JL, Li C, Li LZ, Mei GJ, Shi F. Design of C3-Alkenyl-Substituted 2-Indolylmethanols for Catalytic Asymmetric Interrupted Nazarov-Type Cyclization. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701521] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Cong-Shuai Wang
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Jia-Le Wu
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Can Li
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Lin-Zhi Li
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Guang-Jian Mei
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Feng Shi
- School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
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37
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Zhang H, Lu Z. Nickel-catalyzed enantioselective sequential Nazarov cyclization/decarboxylation. Org Chem Front 2018. [DOI: 10.1039/c8qo00279g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nickel-catalyzed enantioselective sequential Nazarov cyclization/decarboxylation has been developed.
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Affiliation(s)
- Heyi Zhang
- Department of Chemistry
- Zhejiang University
- Hangzhou
- China
| | - Zhan Lu
- Department of Chemistry
- Zhejiang University
- Hangzhou
- China
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38
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Ateşin TA, Martinez GM, Flores D. It Is Not Just Up to the Substrate: Palladium(0) Cyclizes Nazarov Substrates through Intramolecular Allylic Alkylation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00494] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tülay A. Ateşin
- Department of Chemistry, The University of Texas Rio Grande Valley, Edinburg, Texas 78539-2999, United States
| | - Gabriela M. Martinez
- Department of Chemistry, The University of Texas Rio Grande Valley, Edinburg, Texas 78539-2999, United States
| | - David Flores
- Department of Chemistry, The University of Texas Rio Grande Valley, Edinburg, Texas 78539-2999, United States
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39
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Zhou X, Zhao Y, Cao Y, He L. Catalytic Efficient Nazarov Reaction of Unactivated Aryl Vinyl Ketones via a Bidentate Diiron Lewis Acid Activation Strategy. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xin Zhou
- School of Chemsitry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
| | - Yukun Zhao
- School of Chemsitry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
| | - Yang Cao
- School of Chemsitry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
| | - Lirong He
- School of Chemsitry and Chemical Engineering; Southwest University; Chongqing 400715 People's Republic of China
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40
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Wang GP, Chen MQ, Zhu SF, Zhou QL. Enantioselective Nazarov cyclization of indole enones cooperatively catalyzed by Lewis acids and chiral Brønsted acids. Chem Sci 2017; 8:7197-7202. [PMID: 29081952 PMCID: PMC5633839 DOI: 10.1039/c7sc03183a] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/25/2017] [Indexed: 11/21/2022] Open
Abstract
Enantioselective control of the chirality of a tertiary α-carbon in the products of a Nazarov cyclization of enones is challenging because the reaction involves an enantioselective proton transfer process. We herein report the use of cooperative catalysis using Lewis acids and chiral Brønsted acids to control the stereochemistry of the tertiary α-carbon in the products of this reaction. Specifically, with ZnCl2 and a chiral spiro phosphoric acid as catalysts, we realized the first enantioselective construction of cyclopenta[b]indoles with chiral tertiary α-carbons via Nazarov cyclization of indole enone substrates with only one coordinating site. Mechanistic studies revealed that the chiral spiro phosphoric acid acts as a multifunctional catalyst: it co-catalyzes the cyclization of the dienone and enantioselectively catalyzes a proton transfer reaction of the enol intermediate. This new strategy of enantioselective control by means of cooperative catalysis may show utility for other challenging asymmetric cyclization reactions.
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Affiliation(s)
- Guo-Peng Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry Nankai University , Tianjin 300071 , China . ;
| | - Meng-Qing Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry Nankai University , Tianjin 300071 , China . ;
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry Nankai University , Tianjin 300071 , China . ;
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry , College of Chemistry Nankai University , Tianjin 300071 , China . ; .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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41
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Komatsuki K, Sadamitsu Y, Sekine K, Saito K, Yamada T. Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2-Cyclopentenones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705909] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Keiichi Komatsuki
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Sadamitsu
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kohei Sekine
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kodai Saito
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tohru Yamada
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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42
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Komatsuki K, Sadamitsu Y, Sekine K, Saito K, Yamada T. Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2-Cyclopentenones. Angew Chem Int Ed Engl 2017; 56:11594-11598. [DOI: 10.1002/anie.201705909] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Keiichi Komatsuki
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Sadamitsu
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kohei Sekine
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kodai Saito
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tohru Yamada
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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43
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Vinogradov MG, Turova OV, Zlotin SG. Nazarov reaction: current trends and recent advances in the synthesis of natural compounds and their analogs. Org Biomol Chem 2017; 15:8245-8269. [DOI: 10.1039/c7ob01981e] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recent applications of the Nazarov reaction to stereoselective synthesis of pharmacology-relevant cyclopentenone scaffolds are summarized.
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Affiliation(s)
- Maxim G. Vinogradov
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
| | - Olga V. Turova
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
| | - Sergei G. Zlotin
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
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44
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Grenet E, Martinez J, Salom-Roig XJ. Torquoselective Nazarov Cyclization Mediated by a Chiral Sulfoxide: First Enantioselective Synthesis of two Known Anticancer Agents. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Erwann Grenet
- Institut de Biomolécules Max Mousseron (IBMM); UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Jean Martinez
- Institut de Biomolécules Max Mousseron (IBMM); UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Xavier J. Salom-Roig
- Institut de Biomolécules Max Mousseron (IBMM); UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
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45
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Grenet E, Martínez J, Salom-Roig XJ. Lewis Acid Induced Switch of Torquoselectivity in the Nazarov Cyclization of Activated Dienones Bearing a Chiral Sulfoxide. Chemistry 2016; 22:16770-16773. [DOI: 10.1002/chem.201603920] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Erwann Grenet
- Institut de Biomolécules Max Mousseron (IBMM), UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Jean Martínez
- Institut de Biomolécules Max Mousseron (IBMM), UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Xavier J. Salom-Roig
- Institut de Biomolécules Max Mousseron (IBMM), UMR 5247; Université de Montpellier, CNRS, ENSCM; Place Eugène Bataillon 34095 Montpellier France
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46
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William R, Wang S, Mallick A, Liu XW. Interrupting Nazarov Reaction with Different Trapping Modality: Utilizing Potassium Alkynyltrifluoroborate as a σ-Nucleophile. Org Lett 2016; 18:4458-61. [DOI: 10.1021/acs.orglett.6b01606] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ronny William
- Division
of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Siming Wang
- Division
of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Asadulla Mallick
- Division
of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Xue-Wei Liu
- Division
of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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47
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Tang ML, Peng P, Liu ZY, Zhang J, Yu JM, Sun X. Sulfoxide-Based Enantioselective Nazarov Cyclization: Divergent Syntheses of (+)-Isopaucifloral F, (+)-Quadrangularin A, and (+)-Pallidol. Chemistry 2016; 22:14535-9. [DOI: 10.1002/chem.201603664] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Mei-Lin Tang
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Peng Peng
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Zheng-Yu Liu
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Jian Zhang
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Jian-Ming Yu
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
| | - Xun Sun
- Department of Natural Products Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 P.R. China
- Shanghai Key Laboratory of Clinical Geriatric Medicine; Shanghai 201203 P.R. China
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48
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Itoh T, Nokami T, Kawatsura M. Recent Progress on Nazarov Cyclizations: The Use of Iron Salts as Catalysts in Ionic Liquid Solvent Systems. CHEM REC 2016; 16:1676-89. [PMID: 27219324 DOI: 10.1002/tcr.201600021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Indexed: 12/21/2022]
Abstract
Nazarov cyclization is an important and versatile method for the synthesis of five-membered carbocycles, and extensive studies have been conducted to optimize the reaction. Among recent studies, several trends are recognized. One is the combination of different reactions with Nazarov cyclization in a one-pot reaction system which enables the preparation of unique cyclization products. The second is the use of a transition-metal catalyst, though Lewis or Brønsted acids have generally been used for the reaction. The third is the realization of the asymmetric Nazarov cyclization. The fourth is the base-catalyzed Nazarov cyclization. Furthermore, several useful protocols for realizing Nazarov cyclization have also been developed. The recent progress on Nazarov cyclizations is summarized in Section 2. Section 3 is our chronicle in this field. We focused on the use of iron as the catalyst in Nazarov cyclizations and ionic liquids as solvents: Nazarov cyclization of thiophene derivatives using FeCl3 as the catalyst was accomplished and we succeeded in demonstrating the first example of an iron-catalyzed asymmetric Nazarov reaction. We next established Nazarov cyclization of pyrrole or indole derivatives using Fe(ClO4 )3 ·Al2 O3 as the catalyst with high trans selectivities in excellent yields. Since the cyclized product was reacted with a vinyl ketone in the presence of the same iron salt, the system allowed realization of the sequential type of Nazarov/Michael reaction of pyrrole derivatives. Furthermore, we demonstrated the recyclable use of the iron catalyst and obtained the desired Nazarov/Michael reaction products in good yields for five repetitions of the reactions without any addition of the catalyst using an ionic liquid, [bmim][NTf2 ], as the solvent. We expect that the iron-catalyzed Nazarov cyclization, in particular, in an ionic liquid solvent might become a useful method to synthesize functional molecules that include cycloalkene moieties.
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Affiliation(s)
- Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering and Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori, 680-852, Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology, Graduate School of Engineering and Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori, 680-852, Japan
| | - Motoi Kawatsura
- Department of Chemistry, College of Humanities and Science, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan
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49
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Simeonov SP, Nunes JPM, Guerra K, Kurteva VB, Afonso CAM. Synthesis of Chiral Cyclopentenones. Chem Rev 2016; 116:5744-893. [DOI: 10.1021/cr500504w] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Svilen P. Simeonov
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str, bl.9, 1113 Sofia, Bulgaria
| | - João P. M. Nunes
- Department
of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Krassimira Guerra
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Vanya B. Kurteva
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str, bl.9, 1113 Sofia, Bulgaria
| | - Carlos A. M. Afonso
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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50
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Affiliation(s)
- Liang Hong
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
| | - Wangsheng Sun
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Dongxu Yang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Guofeng Li
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Rui Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
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