1
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Choudhary K, Joshi H, Rohilla S, Singh VK. Silver-Catalyzed Asymmetric Double Desymmetrization via Vinylogous Michael Addition of Prochiral α,α-Dicyanoalkenes to Cyclopentendiones. Chemistry 2024; 30:e202304078. [PMID: 38311856 DOI: 10.1002/chem.202304078] [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: 12/07/2023] [Revised: 01/28/2024] [Accepted: 02/04/2024] [Indexed: 02/06/2024]
Abstract
An asymmetric double desymmetrization methodology has been developed for synthesizing densely functionalized chiral cyclopentylcyclohexane scaffolds. We have constructed four chiral centers, including an all-carbon quaternary stereocenter in a single C-C bond formation event. The methodology has high functional-group tolerance and delivers a broad range of enantioenriched products. This vinylogous Michael addition reaction of prochiral α,α-dicyanocyclohexane to 2,2-disubstituted cyclopentene-1,3-dione is catalyzed by a chiral Ag-(R)-DTBM-SEGPHOS catalyst.
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Affiliation(s)
- Kavita Choudhary
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India)
| | - Harshit Joshi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India)
| | - Shweta Rohilla
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India)
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, Uttar Pradesh, India)
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2
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Du SS, Zhai YH, Zhang C, Wang MC, Jia SK, Mei GJ, Hua YZ. Dinuclear Zinc-Catalyzed Asymmetric Desymmetrization of Cyclopentendiones: Access to Functional Cyclopentanediones Bearing an All-carbon Quaternary Stereocenter. Chem Asian J 2023; 18:e202300591. [PMID: 37524655 DOI: 10.1002/asia.202300591] [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: 07/07/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/02/2023]
Abstract
The success in the identification of the two enantioisomeric surfaces of electrophiles by dinuclear zinc catalysts is disclosed. This protocol realizes a dinuclear zinc-cocatalyzed desymmetrization of cyclopentendiones using α-hydroxy aryl ketones as nucleophiles through Michael addition reaction. Under mild conditions, a series of functional cyclopentanediones bearing multiple stereogenic centers including an all-carbon quaternary stereocenter, were obtained in moderate to good yields with excellent stereoselectivities.
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Affiliation(s)
- Si-Si Du
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Ying-Hui Zhai
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Cui Zhang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Min-Can Wang
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Shi-Kun Jia
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Guang-Jian Mei
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
| | - Yuan-Zhao Hua
- College of Chemistry and Institute of Green Catalysis, Zhengzhou University, No. 100, Science Road, Zhengzhou City Henan Province, 450000, P. R. China
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3
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Li LQ, Zhao JQ, Zhang YP, You Y, Wang ZH, Ge ZZ, Zhou MQ, Yuan WC. Diastereoselective Formal 1,3-Dipolar Cycloaddition of Trifluoroethyl Amine-Derived Ketimines Enables the Desymmetrization of Cyclopentenediones. Molecules 2023; 28:5372. [PMID: 37513245 PMCID: PMC10386021 DOI: 10.3390/molecules28145372] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
In this research, a metal-free diastereoselective formal 1,3-dipolar cycloaddition of N-2,2,2-trifluoroethylisatin ketimines and cyclopentene-1,3-diones which can efficiently lead to the desymmetrization of cyclopentene-1,3-diones is developed. With the developed protocol, a series of tetracyclic spirooxindoles containing pyrrolidine and cyclopentane subunits can be smoothly obtained with good results (up to 99% yield and 91:9 dr). Furthermore, the methodology can be extended to trifluoromethyl-substituted iminomalonate, and the corresponding formal [3+2] cycloaddition reaction affords bicyclic heterocycles containing fused pyrrolidine and cyclopentane moieties in moderate yields with >20:1 dr. The synthetic potential of the methodology is demonstrated by the scale-up experiment and by versatile transformations of the products.
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Affiliation(s)
- Lin-Qiang Li
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Zhen Ge
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Ming-Qiang Zhou
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
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4
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Chen Y, He J, Zhuang C, Liu Z, Xiao K, Su Z, Ren X, Wang T. Synergistic Catalysis between a Dipeptide Phosphonium Salt and a Metal‐Based Lewis Acid for Asymmetric Synthesis of
N
‐Bridged [3.2.1] Ring Systems. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jiajia He
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Cheng Zhuang
- National Chengdu Center for Safety Evaluation of Drugs and National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu 610041 P. R. China
| | - Zanjiao Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Kai Xiao
- National Chengdu Center for Safety Evaluation of Drugs and National Clinical Research Center for Geriatrics West China Hospital Sichuan University Chengdu 610041 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry Sichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
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5
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Chen Y, He J, Zhuang C, Liu Z, Xiao K, Su Z, Ren X, Wang T. Synergistic Catalysis between a Dipeptide Phosphonium Salt and a Metal-Based Lewis Acid for Asymmetric Synthesis of N-Bridged [3.2.1] Ring Systems. Angew Chem Int Ed Engl 2022; 61:e202207334. [PMID: 35766480 DOI: 10.1002/anie.202207334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Indexed: 02/05/2023]
Abstract
We present an unprecedented synergic catalytic route for the asymmetric construction of fluorinated N-bridged [3.2.1] cyclic members of tropane family via a bifunctional phosphonium salt/silver co-catalyzed cyclization process. A broad variety of substrates bearing an assortment of functional groups are compatible with this method, providing targeted compounds bearing seven-membered ring and four contiguous stereocenters in high yields with excellent stereoselectivities. The gram-scale preparations, facile elaborations and preliminary biological activities of the products demonstrate the application potential. Moreover, both experimental and computational mechanistic studies revealed that the cyclization proceeded via a "sandwich" reaction model with multiple weak-bond cooperative activations. Insights gained from our studies are expected to advance general efforts towards the catalytic synthesis of challenging chiral heterocyclic molecules.
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Affiliation(s)
- Yuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jiajia He
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Cheng Zhuang
- National Chengdu Center for Safety Evaluation of Drugs and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Zanjiao Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Kai Xiao
- National Chengdu Center for Safety Evaluation of Drugs and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
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6
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Maurya S, Jadhav SB, Chegondi R. Metal-Free Oxidative Formal C(sp2)-H Arylation of Cyclopentene-1,3-diones with β-Naphthols. Org Biomol Chem 2022; 20:2059-2063. [DOI: 10.1039/d2ob00156j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, mild, and transition-metal free formal C(sp2)−H arylation of prochiral 2,2-disubstituted cyclopentene-1,3-diones is reported. This oxidative arylation with β-naphthols proceeds via base-mediated C-Michael addition followed by aerial oxygen insertion...
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7
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Liu H, Shen C, Chang X, Wang C. Recent Advances in Catalytic Asymmetric 1,3-Dipolar Cycloaddition Reactions with Kinetic Resolution. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202205037] [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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8
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Ni Q, Zhu Z, Fan Y, Chen X, Song X. Chiral Phosphoric Acid Catalyzed Desymmetrization of Cyclopentendiones via Friedel-Crafts Conjugate Addition of Indolizines. Org Lett 2021; 23:9548-9553. [PMID: 34855406 DOI: 10.1021/acs.orglett.1c03780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An organocatalytic highly diastero- and enantioselective Friedel-Crafts conjugate addition of indolizines to prochiral cyclopentenediones has been successfully developed. This desymmetric transformation provides a direct access to the desired indolizine-substituted cyclopentanediones in yields of 62-91% and excellent stereoselectivities. The utility of the approach was demonstrated by diverse late-stage functionalizations through reduction or oxidation. Importantly, the direct sp2 C-H functionalization with nitromethane in one-pot process resulted in the indolizine-linked axially chiral styrene bearing a remote chiral center.
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Affiliation(s)
- Qijian Ni
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Zhiming Zhu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Yanjun Fan
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Xiaoyun Chen
- Jiangsu University of Science and Technology, School of Environmental and Chemical Engineering, No. 2 Mengxi Road, Zhenjiang, Jiangsu, 212003, P. R. China
| | - Xiaoxiao Song
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
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9
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Biswas RG, Ray SK, Kannaujiya VK, Unhale RA, Singh VK. Cu(I)-Catalyzed asymmetric exo-selective synthesis of substituted pyrrolidines via a 1,3-dipolar cycloaddition reaction. Org Biomol Chem 2021; 19:4685-4690. [PMID: 33982725 DOI: 10.1039/d1ob00494h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An (R)-DM-BINAP/Cu(CH3CN)4BF4 complex catalyzed exo-selective asymmetric 1,3-dipolar cycloaddition (1,3-DCA) reaction of imino esters with α,β-unsaturated pyrazoleamides has been developed. A series of highly functionalized pyrrolidines with multiple stereogenic centers were obtained with good yields and diastereoselectivities and excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Rayhan G Biswas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Sumit K Ray
- Department of Chemistry, Kharagpur College, Paschim Medinipur, West Bengal 721305, India
| | - Vinod K Kannaujiya
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Rajshekhar A Unhale
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462 066, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India.
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10
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N‐Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry, Chemical Engineering and Materials Science Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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11
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Zhang H, Wang M, Wu X, Zhu C. Heterocyclization Reagents for Rapid Assembly of N-Fused Heteroarenes from Alkenes. Angew Chem Int Ed Engl 2020; 60:3714-3719. [PMID: 33140527 DOI: 10.1002/anie.202013089] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Indexed: 12/17/2022]
Abstract
N-Fused heterocycles are of particular use and upmost importance in multiple fields. Herein, we disclose a conceptually new approach for the rapid assembly of N-fused heteroarenes from alkenes. A portfolio of strategically designed heterocyclization reagents are readily prepared for the cascade reaction. A plethora of N-fused heteroarenes including seven types of heterocyclic core are furnished. The protocol features a broad functional-group compatibility and high product diversity, and provides a practical tool for late-stage heteroarene elaboration.
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Affiliation(s)
- Huihui Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Min Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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12
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Wei L, Chang X, Wang CJ. Catalytic Asymmetric Reactions with N-Metallated Azomethine Ylides. Acc Chem Res 2020; 53:1084-1100. [PMID: 32320206 DOI: 10.1021/acs.accounts.0c00113] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Optically active nitrogen-containing compounds have attracted substantial attention due to their ubiquity in the cores of natural products and bioactive molecules. Among the various synthetic approaches to nitrogenous frameworks, catalytic asymmetric 1,3-dipolar cycloadditions are one of the most attractive methods because of their powerful ability to rapidly construct various chiral N-heterocycles. In particular, N-metallated azomethine ylides, common and readily available 1,3-dipoles, have been extensively applied in dipolar cycloaddition reactions. Despite the fact that asymmetric transformations of azomethine ylides have been investigated for decades, most of the efforts have been directed toward the preparation of pyrrolidines using glycinate-derived α-unsubstituted aldimine esters as the precursors of the azomethine ylides. While α-substituted azomethine ylides derived from amino esters other than glycinate have seldom been harnessed, the construction of non-five-membered chiral N-heterocycles via 1,3-dipolar cycloadditions remains underexplored. In addition, the asymmetric α-functionalization of aldimine esters to prepare acyclic nitrogenous compounds such as α-amino acids, in which an in situ-generated N-metallated azomethine ylide serves as the nucleophile, has not been sufficiently described.In this Account, we mainly discuss the achievements we have made in the past decade toward broadening the applications of N-metallated azomethine ylides for the preparation of nitrogen-containing compounds. We began our investigation with the design and synthesis of a new type of chiral ligand, TF-BiphamPhos, which not only coordinates with Lewis acids to activate dipolar species but also serves as an H-bond donor to increase the reactivity of dipolarophiles with significantly enhanced stereochemical control. Using the Cu(I) or Ag(I)/TF-BiphamPhos complex as the catalyst, we achieved highly stereoselective (3+2) cycloadditions of glycinate and non-glycinate-derived azomethine ylides with diverse dipolarophiles, producing a variety of enantioenriched pyrrolidines with multiple stereocenters in a single step. To further expand the synthetic utility of N-metallated azomethine ylides, we successfully developed higher order cycloadditions with fulvenes, tropone, 2-acyl cycloheptatrienes, and pyrazolidinium ylides serving as the reaction partner, and this reaction provides straightforward access to enantioenriched fused piperidines, bridged azabicyclic frameworks, and triazines via (3+6)- and (3+3)-type cycloadditions. Using N-metallated azomethine ylides as the nucleophile, we realized Cu(I)-catalyzed asymmetric 1,4-Michael additions with α,β-unsaturated bisphosphates/Morita-Baylis-Hillman products, furnishing an array of structurally diverse unnatural α-amino acids. Based on the strategy of synergistic activation, we achieved highly efficient dual Cu/Pd and Cu/Ir catalysis for the α-functionalization of aldimine esters via the asymmetric allylic/allenylic alkylation of N-metallated azomethine ylides. Notably, Cu/Ir catalysis allowed the stereodivergent synthesis of α,α-disubstituted α-amino acids via a branched allylic alkylation reaction, in which the two distinct chiral metal catalysts independently have full stereochemical control over the corresponding nucleophile and electrophile. Furthermore, an expedient and stereodivergent preparation of biologically important tetrahydro-γ-carbolines was realized through a Cu/Ir-catalyzed cascade allylation/iso-Pictet-Spengler cyclization. In addition, when the steric congestion in the allylation intermediates was increased, the combined Cu/Ir catalysts provided an asymmetric cascade allylation/2-aza-Cope rearrangement, producing various optically active homoallylic amines with impressive results.
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Affiliation(s)
- Liang Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xin Chang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai230021, China
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13
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Donthoju A, Magham LR, Singh N, Manjula N, Chegondi R. Enantioselective Desymmetrization of Prochiral Cyclopentene-1,3-diones Triggered by Remote C(sp2)–N Bond Formation. J Org Chem 2019; 84:15735-15744. [DOI: 10.1021/acs.joc.9b02411] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Ashok Donthoju
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Lakshmi Revati Magham
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Neetu Singh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nemali Manjula
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rambabu Chegondi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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14
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Hu JM, Zhang JQ, Sun BB, Chen JB, Yu JQ, Yang XP, Lv HP, Wang Z, Wang XW. Chiral N-Heterocyclic-Carbene-Catalyzed Cascade Asymmetric Desymmetrization of Cyclopentenediones with Enals: Access to Optically Active 1,3-Indandione Derivatives. Org Lett 2019; 21:8582-8586. [DOI: 10.1021/acs.orglett.9b03178] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jia-Ming Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiao-Peng Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hao-Peng Lv
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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15
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Adrio J, Carretero JC. Stereochemical diversity in pyrrolidine synthesis by catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides. Chem Commun (Camb) 2019; 55:11979-11991. [PMID: 31552927 DOI: 10.1039/c9cc05238k] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The pyrrolidine ring is a privileged structural motif in synthetic and medicinal chemisty. This review aims to highlight the high versatility of the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides for access to different types of stereochemical patterns in enantioselective pyrrolidine synthesis. Special attention will be paid to stereodivergent procedures giving rise to different stereoisomers from the same starting materials.
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Affiliation(s)
- Javier Adrio
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Juan C Carretero
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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16
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Liang H, Zhou X, Zheng L, Wang J. Enantioselective Organocatalytic Desymmetrization of Cyclopentene-1,3-diones through Formal C(sp2)–H Amidation. J Org Chem 2019; 84:11306-11315. [DOI: 10.1021/acs.joc.9b01678] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People’s Republic of China
| | - Xiaotong Zhou
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People’s Republic of China
| | - Liyao Zheng
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People’s Republic of China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People’s Republic of China
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17
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Zhi M, Gan Z, Ma R, Cui H, Li EQ, Duan Z, Mathey F. Ag/P-Stereogenic Phosphine-Catalyzed Enantioselective 1,3-Dipolar Cycloadditions: A Method to Optically Active Pyrrolidines. Org Lett 2019; 21:3210-3213. [PMID: 30986074 DOI: 10.1021/acs.orglett.9b00926] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Ag/P-stereogenic phosphine-complex-catalyzed 1,3-dipolar cycloaddition of azomethine ylides with electron-deficient olefins is reported. In this reaction, highly functionalized pyrrolines with a spiro-quaternary stereogenic center were obtained in good yields (up to 99%) with excellent levels of diastereo- (up to >20:1 dr) and enantioselectivities (up to >99% ee). The chirality of adducts was controlled predominantly by the P-stereogenic phosphines.
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Affiliation(s)
- Mengna Zhi
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Zhenjie Gan
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Rong Ma
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Hao Cui
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Er-Qing Li
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Zheng Duan
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - François Mathey
- College of Chemistry and Molecular Engineering, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province , Zhengzhou University , Zhengzhou 450001 , P. R. China
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18
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Wu Y, Xu B, Liu B, Zhang ZM, Liu Y. A new trifluoromethylated sulfonamide phosphine ligand for Ag(i)-catalyzed enantioselective [3 + 2] cycloaddition of azomethine ylides. Org Biomol Chem 2019; 17:1395-1401. [PMID: 30601527 DOI: 10.1039/c8ob02922a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A newly developed Ming-Phos ligand with a 3,5-bis(trifluoromethyl)phenyl substituent was demonstrated to be highly efficient for Ag-catalyzed asymmetric [3 + 2] cycloaddition reactions of azomethine ylides with maleimides, cyclopentene-1,3-diones, and N-(2-t-butylphenyl)maleimide. Being easily prepared on the gram scale in one step, the ligand in combination with a Ag catalyst enables the synthesis of a variety of highly functionalized bicyclic pyrrolidine derivatives in good yields and excellent enantioselectivities under mild conditions.
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Affiliation(s)
- Yuanqi Wu
- College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China.
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19
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Chang X, Sun XS, Che C, Hu YZ, Tao HY, Wang CJ. Copper(I)-Catalyzed Kinetic Resolution of exo-3-Oxodicyclopentadienes and endo-3-Oxodicyclopentadiene. Org Lett 2019; 21:1191-1196. [PMID: 30707591 DOI: 10.1021/acs.orglett.9b00136] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The first example of highly efficient kinetic resolution of exo-3-oxodicyclopentadienes and endo-3-oxodicyclopentadiene has been developed by means of Cu(I)-catalyzed asymmetric 1,3-dipolar cycloaddition of azomethine ylide. Compared with the existing methodologies for those synthetically important optically active convex molecules, the current protocol provides an alternative but more practical approach from the readily available racemic starting materials, which is free from the repetitive reduction/oxidation steps in the enzymatic resolution or the indispensable stoichiometric amount of chirality-induction reagents.
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Affiliation(s)
- Xin Chang
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Xi-Shang Sun
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Chao Che
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Yuan-Zheng Hu
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Hai-Yan Tao
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences , Wuhan University , Wuhan 430072 , China.,State Key Laboratory of Elemento-organic Chemistry , Nankai University , Tianjin 300071 , China
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20
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Zhang YP, You Y, Zhao JQ, Zhou XJ, Zhang XM, Xu XY, Yuan WC. A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1,3-dipolar cycloaddition of α,β-unsaturated 7-azaindoline amides and azomethine ylides. Org Chem Front 2019. [DOI: 10.1039/c9qo00347a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The Dixon’s catalyst system is effective for the asymmetric 1,3-dipolar cycloaddition.
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Affiliation(s)
- Yan-Ping Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Yong You
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Jian-Qiang Zhao
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Xiao-Jian Zhou
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
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21
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Liu HC, Wei L, Huang R, Tao HY, Cong H, Wang CJ. Ag(I)-Catalyzed Kinetic Resolution of Cyclopentene-1,3-diones. Org Lett 2018; 20:3482-3486. [DOI: 10.1021/acs.orglett.8b01254] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hua-Chao Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Liang Wei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Rong Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Hai-Yan Tao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 230021, China
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22
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George J, Kim HY, Oh K. Silver-Catalyzed Asymmetric Desymmetrization of Cyclopentenediones via [3 + 2] Cycloaddition with α-Substituted Isocyanoacetates. Org Lett 2018; 20:2249-2252. [PMID: 29583010 DOI: 10.1021/acs.orglett.8b00590] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly selective and practical asymmetric Ag(I) catalyst system has been developed for the [3 + 2] cycloaddition reactions between isocyanoacetates and cyclopentenediones. The current Ag(I) catalyst system tolerates moisture and air and readily utilizes class III solvents such as EtOAc and acetone. The development of on demand generation of an active chiral catalyst in the presence of isocyanides paves a way to the efficient asymmetric preparation of bicyclic pyrrolidines with four stereogenic centers, including two quaternary centers in 80-97% ee.
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Affiliation(s)
- Jimil George
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro, Dongjak , Seoul 06974 , Republic of Korea
| | - Hun Young Kim
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro, Dongjak , Seoul 06974 , Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro, Dongjak , Seoul 06974 , Republic of Korea
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23
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Jia ZJ, Takayama H, Futamura Y, Aono H, Bauer JO, Strohmann C, Antonchick AP, Osada H, Waldmann H. Catalytic Enantioselective Synthesis of a Pyrrolizidine–Alkaloid-Inspired Compound Collection with Antiplasmodial Activity. J Org Chem 2018; 83:7033-7041. [DOI: 10.1021/acs.joc.7b03202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Jun Jia
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Chemical Biology, Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Hiroshi Takayama
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Yushi Futamura
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science,2-1 Hirosawa,Wako-shi, Saitama 351-0198, Japan
| | - Harumi Aono
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science,2-1 Hirosawa,Wako-shi, Saitama 351-0198, Japan
| | - Jonathan O. Bauer
- Inorganic Chemistry, Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Carsten Strohmann
- Inorganic Chemistry, Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Andrey P. Antonchick
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Chemical Biology, Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science,2-1 Hirosawa,Wako-shi, Saitama 351-0198, Japan
| | - Herbert Waldmann
- Department of Chemical Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Chemical Biology, Faculty of Chemistry and Chemical Biology, Technical University Dortmund, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany
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24
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Ray SK, Biswas RG, Suneja A, Sadhu MM, Singh VK. (R)-DM-SEGPHOS-Ag(I)-Catalyzed Enantioselective Synthesis of Pyrrolidines and Pyrrolizidines via (1,3)- and Double (1,3)-Dipolar Cycloaddition Reactions. J Org Chem 2018; 83:2293-2308. [PMID: 29364672 DOI: 10.1021/acs.joc.7b03185] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient diastereo- and enantioselective route to access a wide range of highly substituted pyrrolidine and pyrrolizidine derivatives has been described via (1,3)- and double (1,3)-dipolar cycloaddition reactions catalyzed by the (R)-DM-SEGPHOS-Ag(I) complex. The reactions proceed smoothly at ambient temperature, affording a variety of pyrrolidines and pyrrolizidines in high yields (up to 93%) with up to 99:1 dr and excellent enantioselectivities (up to 98% ee) without any additives. The newly synthesized pyrrolidine and pyrrolizidine derivatives contain four and seven contiguous stereogenic centers, respectively. Moreover, the synthetic utility of enantioenriched products has been demonstrated by transforming them into various synthetically useful advanced intermediates.
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Affiliation(s)
- Sumit K Ray
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Rayhan G Biswas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Arun Suneja
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Milon M Sadhu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India.,Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, Uttar Pradesh 208 016, India
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25
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Chandra Sahoo S, Joshi M, Chandra Pan S. Diastereoselective Desymmetrization of Prochiral Cyclopentenediones via Cycloaddition Reaction with N-Phenacylbenzothiazolium Bromides. J Org Chem 2017; 82:12763-12770. [DOI: 10.1021/acs.joc.7b01964] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Subas Chandra Sahoo
- Department
of Chemistry, Indian Institute of Technology Guwahati, North
Guwahati, Assam 781039, India
| | - Mayank Joshi
- Department
of Chemistry, Indian Institute of Science Education and Research, Mohali, Punjab 140306, India
| | - Subhas Chandra Pan
- Department
of Chemistry, Indian Institute of Technology Guwahati, North
Guwahati, Assam 781039, India
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26
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Shi LM, Dong WW, Tao HY, Dong XQ, Wang CJ. Catalytic Asymmetric Desymmetrization of Cyclopentendiones via Diels–Alder Reaction of 3-Hydroxy-2-pyrones: Construction of Multifunctional Bridged Tricyclic Lactones. Org Lett 2017; 19:4532-4535. [DOI: 10.1021/acs.orglett.7b02107] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Li-Min Shi
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
| | - Wu-Wei Dong
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
| | - Hai-Yan Tao
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Xiu-Qin Dong
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Chun-Jiang Wang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 230012, China
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27
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Bdiri B, Zhao BJ, Zhou ZM. Recent advances in the enantioselective 1,3-dipolar cycloaddition of azomethine ylides and dipolarophiles. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.05.010] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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28
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Zhi Y, Zhao K, Wang A, Englert U, Raabe G, Enders D. Asymmetric Synthesis of Cyclopentane-Substituted Oxindoles via
Organocatalytic Desymmetrization of Cyclopent-4-ene-1,3-diones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700358] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ying Zhi
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Kun Zhao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Ai Wang
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Ullrich Englert
- Institute of Inorganic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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29
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Liu Y, Hu H, Wang X, Zhi S, Kan Y, Wang C. Synthesis of Pyrrole via a Silver-Catalyzed 1,3-Dipolar Cycloaddition/Oxidative Dehydrogenative Aromatization Tandem Reaction. J Org Chem 2017; 82:4194-4202. [PMID: 28326778 DOI: 10.1021/acs.joc.7b00180] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pyrroles are an important group of heterocyclic compounds with a wide range of interesting properties, which have resulted in numerous applications in a variety of fields. Despite the importance of these compounds, there have been few reports in the literature pertaining to the synthesis of pyrroles from simple alkenes using a one-pot sequential 1,3-dipolar cycloaddition/aromatization reaction sequence. Herein, we report the development of a benzoyl peroxide-mediated oxidative dehydrogenative aromatization reaction for the construction of pyrroles. We subsequently developed a one-pot tandem reaction that combined this new method with a well-defined silver-catalyzed 1,3-dipolar cycloaddition reaction, thereby providing a practical method for the synthesis of multisubstituted pyrroles from easy available alkenes. The mechanism of this oxidative dehydrogenative aromatization reaction was also examined in detail.
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Affiliation(s)
- Yan Liu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China.,School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China.,School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
| | - Xiang Wang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Sanjun Zhi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Chao Wang
- School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
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30
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Zhao MN, Zhang MN, Ren ZH, Wang YY, Guan ZH. Base-mediated formal [3+2] cycloaddition of β,γ-alkenyl esters and p-TsN 3 for the synthesis of pyrazoles. Sci Bull (Beijing) 2017; 62:493-496. [PMID: 36659258 DOI: 10.1016/j.scib.2017.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/18/2017] [Accepted: 02/24/2017] [Indexed: 01/21/2023]
Abstract
A novel 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-mediated formal cycloaddition of β,γ-alkenyl esters with p-tolylsulfonylazide (p-TsN3) for the synthesis of 3,5-disubstituted pyrazoles has been developed. The reaction proceeded through diazotization of β,γ-alkenyl esters sequential with thermodynamic cyclization. p-Tolylsulfonylazide played a role as a source of two-nitrogen synthons. The reaction employs readily available starting materials, tolerates a wide range of functional groups, and proceeds under mild conditions.
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Affiliation(s)
- Mi-Na Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Mei-Na Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, China.
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31
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Wei L, Zhou Y, Song ZM, Tao HY, Lin Z, Wang CJ. Copper(I)-Catalyzed Asymmetric Desymmetrization through Inverse-Electron-Demand aza-Diels-Alder Reaction: Efficient Access to Tetrahydropyridazines Bearing a Unique α-Chiral Silane Moiety. Chemistry 2017; 23:4995-4999. [DOI: 10.1002/chem.201700912] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Liang Wei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Yu Zhou
- Department of Chemistry; The Hong Kong University of Science & Technology; Clear Water Bay, Kowloon Hong Kong
| | - Zhi-Min Song
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 P. R. China
| | - Hai-Yan Tao
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science & Technology; Clear Water Bay, Kowloon Hong Kong
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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32
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Deng H, He FS, Li CS, Yang WL, Deng WP. Enantioselective construction of tricyclic pyrrolidine-fused benzo[b]thiophene 1,1-dioxide derivatives via copper(i)-catalyzed asymmetric 1,3-dipolar cycloaddition. Org Chem Front 2017. [DOI: 10.1039/c7qo00640c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile Cu(i)-catalyzed asymmetric 1,3-dipolar cycloaddition is developed, affording chiral tricyclic pyrrolidine-fused benzo[b]thiophene derivatives in excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Hua Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Fu-Sheng He
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Cong-Shan Li
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
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33
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Zhou Z, Li Y, Gong L, Meggers E. Enantioselective 2-Alkylation of 3-Substituted Indoles with Dual Chiral Lewis Acid/Hydrogen-Bond-Mediated Catalyst. Org Lett 2016; 19:222-225. [DOI: 10.1021/acs.orglett.6b03500] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zijun Zhou
- College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yanjun Li
- College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Lei Gong
- College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Eric Meggers
- College
of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043 Marburg, Germany
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34
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Abstract
This review collects the major progress in the field of enantioselective transformations promoted by chiral silver catalysts, covering the literature since 2008, well illustrating the power of these especially mild Lewis acid catalysts to provide novel asymmetric reactions.
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Affiliation(s)
- Hélène Pellissier
- Aix Marseille Univ., CNRS , Centrale Marseille, iSm2, Marseille, France
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35
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Lazzara PR, Fitzpatrick KP, Eichman CC. Pd-Catalyzed Carboamination of Alkylidenecyclopropanes: Synthesis of Congested Pyrrolidines and Piperidines. Chemistry 2016; 22:16779-16782. [PMID: 27661456 DOI: 10.1002/chem.201604077] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Indexed: 11/06/2022]
Abstract
The synthesis of densely functionalized N-heterocycles is an ongoing challenge in chemical synthesis. Herein, we report an efficient method for the construction of pyrrolidine and piperidine scaffolds using a palladium-catalyzed carboamination of alkylidenecyclopropanes.
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Affiliation(s)
- Phillip R Lazzara
- Department of Chemistry and Biochemistry, Loyola University Chicago, 1068 West Sheridan Road, Chicago, IL, 60660, USA
| | - Keegan P Fitzpatrick
- Department of Chemistry and Biochemistry, Loyola University Chicago, 1068 West Sheridan Road, Chicago, IL, 60660, USA
| | - Chad C Eichman
- Department of Chemistry and Biochemistry, Loyola University Chicago, 1068 West Sheridan Road, Chicago, IL, 60660, USA
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36
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37
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Han D, Chen J, He Q, Fan R. Dearomatization-Induced Cycloaddition and Aromatization-Triggered Rearrangement: Synthesis of Vertically Expanded Five-Ring Fused Benzofurans. Org Lett 2016; 18:4690-3. [DOI: 10.1021/acs.orglett.6b02329] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dandan Han
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Jinjin Chen
- Department
of Child Health Care, Shanghai Children’s Hospital Affiliated to Shanghai Jiao Tong University, 1400 Beijing Xi Road, Shanghai, 200040, China
| | - Qiuqin He
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
| | - Renhua Fan
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, China
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38
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Xu H, Golz C, Strohmann C, Antonchick AP, Waldmann H. Enantiodivergent Combination of Natural Product Scaffolds Enabled by Catalytic Enantioselective Cycloaddition. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602084] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hao Xu
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Christopher Golz
- Technische Universität Dortmund; Fakultät Chemie und Chemische Biologie, Anorganische Chemie; Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Carsten Strohmann
- Technische Universität Dortmund; Fakultät Chemie und Chemische Biologie, Anorganische Chemie; Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Andrey P. Antonchick
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technische Universität Dortmund; Fakultät Chemie and Chemische Biologie, Chemische Biologie; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technische Universität Dortmund; Fakultät Chemie and Chemische Biologie, Chemische Biologie; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
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39
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Xu H, Golz C, Strohmann C, Antonchick AP, Waldmann H. Enantiodivergent Combination of Natural Product Scaffolds Enabled by Catalytic Enantioselective Cycloaddition. Angew Chem Int Ed Engl 2016; 55:7761-5. [PMID: 27193834 DOI: 10.1002/anie.201602084] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 11/06/2022]
Abstract
An efficient strategy has been established for the enantiodivergent synthesis of natural product inspired compounds embodying both tropane and pyrrolidine natural product fragments. This strategy includes the enantioselective kinetic resolution of racemic tropanes by means of a copper(I)-catalyzed [3+2] cycloaddition and allows the preparation of two enantiopure products in a one-pot reaction in high yield and with high diastereo- and enantioselectivity by using one chiral catalyst.
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Affiliation(s)
- Hao Xu
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Christopher Golz
- Technische Universität Dortmund, Fakultät Chemie und Chemische Biologie, Anorganische Chemie, Otto-Hahn-Strasse 6, 44221, Dortmund, Germany
| | - Carsten Strohmann
- Technische Universität Dortmund, Fakultät Chemie und Chemische Biologie, Anorganische Chemie, Otto-Hahn-Strasse 6, 44221, Dortmund, Germany
| | - Andrey P Antonchick
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany. .,Technische Universität Dortmund, Fakultät Chemie and Chemische Biologie, Chemische Biologie, Otto-Hahn-Strasse 4a, 44227, Dortmund, Germany.
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany. .,Technische Universität Dortmund, Fakultät Chemie and Chemische Biologie, Chemische Biologie, Otto-Hahn-Strasse 4a, 44227, Dortmund, Germany.
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40
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Liu HC, Tao HY, Cong H, Wang CJ. Silver(I)-Catalyzed Atroposelective Desymmetrization of N-Arylmaleimide via 1,3-Dipolar Cycloaddition of Azomethine Ylides: Access to Octahydropyrrolo[3,4-c]pyrrole Derivatives. J Org Chem 2016; 81:3752-60. [DOI: 10.1021/acs.joc.6b00396] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hua-Chao Liu
- College
of Chemistry, Molecular Sciences, Wuhan University, Wuhan, China, 430072
| | - Hai-Yan Tao
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, China, 300071
| | - Hengjiang Cong
- College
of Chemistry, Molecular Sciences, Wuhan University, Wuhan, China, 430072
| | - Chun-Jiang Wang
- College
of Chemistry, Molecular Sciences, Wuhan University, Wuhan, China, 430072
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41
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Yao L, Zhu Q, Wei L, Wang ZF, Wang CJ. Dysprosium(III)-Catalyzed Ring-Opening ofmeso-Epoxides: Desymmetrization by Remote Stereocontrol in a Thiolysis/Elimination Sequence. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lu Yao
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qiao Zhu
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Liang Wei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Zuo-Fei Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 China
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42
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Yao L, Zhu Q, Wei L, Wang ZF, Wang CJ. Dysprosium(III)-Catalyzed Ring-Opening ofmeso-Epoxides: Desymmetrization by Remote Stereocontrol in a Thiolysis/Elimination Sequence. Angew Chem Int Ed Engl 2016; 55:5829-33. [DOI: 10.1002/anie.201601083] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Lu Yao
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Qiao Zhu
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Liang Wei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Zuo-Fei Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 China
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43
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Li JY, Kim HY, Oh K. Enantiodivergent Brucine Diol-Catalyzed 1,3-Dipolar Cycloaddition of Azomethine Ylides with α,β-Unsaturated Ketones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500958] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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44
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Zhang DJ, Xie MS, Qu GR, Gao YW, Guo HM. Synthesis of Azacyclic Nucleoside Analogues via Asymmetric [3 + 2] Cycloaddition of 9-(2-Tosylvinyl)-9H-purines. Org Lett 2016; 18:820-3. [DOI: 10.1021/acs.orglett.6b00108] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dan-Jie Zhang
- Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Ming-Sheng Xie
- Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Gui-Rong Qu
- Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yao-Wei Gao
- Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Hai-Ming Guo
- Key Laboratory of Green Chemical
Media and Reactions, Ministry of Education, Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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