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Morales-Manrique C, Baquero EA, Guevara-Pulido J. Recent Advances in the Synthesis of 3,4-Dihydropyran-2-Ones Organocatalyzed by N-Heterocyclic Carbenes. Molecules 2023; 28:molecules28093743. [PMID: 37175154 PMCID: PMC10179788 DOI: 10.3390/molecules28093743] [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: 03/23/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
In recent years, N-heterocyclic carbenes (NHC) have gained recognition as versatile molecules capable of acting as organocatalysts in various reactions, particularly through the activation of aldehydes via Breslow-type adducts. This organocatalytic activation has enabled the production of numerous 3,4-dihydropyran-2-ones and related derivatives. In this review, we provide an overview of the production of 3,4-dihydropyran-2-ones and derivatives via organocatalytic processes involving NHCs over the past eight years. These processes involve the use of a diverse range of substrates, catalysts, and reaction conditions, which can be classified into [4+2]-and [3+3]-type cycloadditions, primarily aimed at synthesizing this skeleton due to its biological activity and multiple stereocenters. These processes are scaled up to the gram scale, and the resulting products are often directed towards epimerization and functionalization to produce more complex molecules with potential applications in the biological field. Finally, we provide a perspective and the future directions of this topic in organic synthesis.
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Affiliation(s)
- Camilo Morales-Manrique
- Estado Sólido y Catálisis Ambiental (ESCA), Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia
- INQA, Química Farmacéutica, Facultad de Ciencias, Universidad El Bosque, Bogotá 11001, Colombia
| | - Edwin A Baquero
- Estado Sólido y Catálisis Ambiental (ESCA), Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia
| | - James Guevara-Pulido
- INQA, Química Farmacéutica, Facultad de Ciencias, Universidad El Bosque, Bogotá 11001, Colombia
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2
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Barik S, Shee S, Gonnade RG, Biju AT. Enantioselective Synthesis of Dihydrothiopyranones via NHC-Catalyzed [3 + 3] Annulation of 2-Bromoenals with β-Oxodithioesters. Org Lett 2022; 24:8848-8853. [DOI: 10.1021/acs.orglett.2c03642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shilpa Barik
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Sayan Shee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India
| | - Akkattu T. Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, India
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3
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Wang Z, Liu Q, Wang K, Liu M, Han Y, Sun A, Ma X. NHC‐Catalyzed Oxidative Annulation of α,β‐unsaturated Aldehydes with Benzyl Ketones: Direct Access to 4,5,6‐Trisubstituted Dihydropyranones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhan‐Yong Wang
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Qingling Liu
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Kai‐Kai Wang
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Menghan Liu
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Yafei Han
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Aili Sun
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
| | - Xueji Ma
- School of Pharmacy Xinxiang University Xinxiang Henan 453003 P. R. China
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4
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Axelsson A, Hammarvid E, Rahm M, Sundén H. DBU‐Catalyzed Ring‐Opening and Retro‐Claisen Fragmentation of Dihydropyranones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Anton Axelsson
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg Sweden
| | - Emmelie Hammarvid
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg Sweden
| | - Martin Rahm
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg Sweden
| | - Henrik Sundén
- Chemistry and Chemical Engineering Chalmers University of Technology Kemivägen 10 412 96 Göteborg Sweden
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5
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Destro D, Bottinelli C, Ferrari L, Albanese DCM, Bencivenni G, Gillick-Healy MW, Kelly BG, Adamo MFA. Enantioselective Synthesis of 3,4-Dihydropyran-2-ones via Phase-Transfer-Catalyzed Addition–Cyclization of Acetylacetone to Cinnamic Thioesters. J Org Chem 2020; 85:5183-5192. [DOI: 10.1021/acs.joc.9b03216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Carlo Bottinelli
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Ludovica Ferrari
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Domenico C. M. Albanese
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Grazia Bencivenni
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Malachi W. Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Brian G. Kelly
- Kelada Pharmachem. Ltd. A1.01, Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
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6
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Dagenais R, Lussier T, Legault CY. Iodine(III)-Mediated Contraction of 3,4-Dihydropyranones: Access to Polysubstituted γ-Butyrolactones. Org Lett 2019; 21:5290-5294. [PMID: 31247750 DOI: 10.1021/acs.orglett.9b01893] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Functionalized γ-butyrolactones are privileged structures in the field of medicinal chemistry; they are found in numerous natural products and synthetic compounds with diverse biological activities. The oxidative ring contraction of 3,4-dihydropyran-2-one derivatives represents a promising yet underappreciated strategy to access these compounds. To the best of our knowledge, very few examples of this strategy have been reported, with limited investigation of the influence of stereogenic centers on the starting dihydropyranones. We investigated the iodine(III)-mediated contraction of a representative set of dihydropyranone derivatives. The method gives rapid access to functionalized γ-butyrolactones in good yields. The reaction scope was investigated, and the method was found to support various levels of substituents, even enabling access to sterically congested quaternary centers. The stereoselectivity was investigated using chiral substrates and a chiral iodine(III) reagent.
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Affiliation(s)
- Robin Dagenais
- Centre in Green Chemistry and Catalysis, Department of Chemistry , University of Sherbrooke , 2500 boul. de l'Université , Sherbrooke , Québec J1K 2R1 , Canada
| | - Tommy Lussier
- Centre in Green Chemistry and Catalysis, Department of Chemistry , University of Sherbrooke , 2500 boul. de l'Université , Sherbrooke , Québec J1K 2R1 , Canada
| | - Claude Y Legault
- Centre in Green Chemistry and Catalysis, Department of Chemistry , University of Sherbrooke , 2500 boul. de l'Université , Sherbrooke , Québec J1K 2R1 , Canada
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7
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Xian J, Chen L, Ye L, Sun Y, Shi Z, Zhao Z, Li X. Enantioselective synthesis of fused dihydropyranones via squaramide-catalyzed Michael addition/lactonization cascade reaction. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Ahire MM, Mhaske SB. Isa‒NHC‒catalyzed intermolecular Stetter reaction of aromatic aldehydes with maleimides: An efficient access to 3‒aroylsuccinimides. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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9
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Fang C, Cao J, Sun K, Zhu J, Lu T, Du D. Direct and Enantioselective Synthesis of N-H-Free 1,5-Benzodiazepin-2-ones by an N-Heterocyclic Carbene Catalyzed [3+4] Annulation Reaction. Chemistry 2018; 24:2103-2108. [PMID: 29236349 DOI: 10.1002/chem.201705050] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Indexed: 01/14/2023]
Abstract
An NHC-catalyzed formal [3+4] annulation of α,β-unsaturated acylazoliums with protecting-group-free aryl 1,2-diamines was developed for a direct and highly enantioselective synthesis of 4-aryl N-H-free 1,5-benzodiazepin-2-ones. This methodology offers an efficient and rapid access to a wide range of enantioenriched target compounds from easily accessible starting materials. The protocol is also scalable and the desired products can easily undergo subsequent N-functionalization to afford diverse N-substituted derivatives. Additionally, a mechanism was proposed to explain the high enantioselectivity in this process.
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Affiliation(s)
- Chao Fang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jing Cao
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Kewen Sun
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jindong Zhu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
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10
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Krishnan J, Jose A, Sasidhar BS, Suresh E, Menon RS, Nair V. An uncommon multicomponent reaction involving nucleophilic heterocyclic carbenes: facile synthesis of fully substituted cyclopentanones. Org Chem Front 2018. [DOI: 10.1039/c7qo01051f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented three component reaction involving arylidene oxazolone, enal and NHC, leading to the synthesis of fully substituted cyclopentanone derivatives with three contiguous stereocenters, is reported.
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Affiliation(s)
- Jagadeesh Krishnan
- Chemical Sciences and Technology Division
- National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Anu Jose
- Chemical Sciences and Technology Division
- National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram – 695 019
- India
| | - B. S. Sasidhar
- Chemical Sciences and Technology Division
- National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - E. Suresh
- Analytical Department and Centralized Instrument Facility
- CSIR-CSMCRI
- Bhavnagar – 364 002
- India
| | - Rajeev S. Menon
- Department of Chemistry
- Central University of Haryana
- Mahendergarh
- India
| | - Vijay Nair
- Chemical Sciences and Technology Division
- National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram – 695 019
- India
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11
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Ding X, Zhang XD, Dong CL, Guan Z, He YH. Enzyme-Catalyzed Cascade Michael/Cyclization Reaction for the Synthesis of 3,4-Dihydropyran Derivatives by Using a Protease. Catal Letters 2017. [DOI: 10.1007/s10562-017-2275-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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12
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Ahire M, Mhaske SB. Synthesis of Succinimide Derivatives by NHC-Catalyzed Stetter Reaction of Aromatic Aldehydes with N-Substituted Itaconimides. ACS OMEGA 2017; 2:6598-6604. [PMID: 31457257 PMCID: PMC6644805 DOI: 10.1021/acsomega.7b01213] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 09/28/2017] [Indexed: 06/10/2023]
Abstract
An N-heterocyclic carbene-catalyzed intermolecular Stetter reaction of aromatic aldehydes with N-substituted itaconimides has been developed. A delicate balance between the Stetter reaction and the competing isomerization of the itaconimide double bond has been achieved in this operationally simple reaction to afford valuable new succinimide derivatives containing 1,4 and 1,5 dicarbonyl scaffolds in good to excellent yields. The reaction tolerates variable substituents on both aldehydes and N-substituted itaconimides.
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Affiliation(s)
- Milind
M. Ahire
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune 411008, India
| | - Santosh B. Mhaske
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune 411008, India
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13
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Latendorf K, Mechler M, Schamne I, Mack D, Frey W, Peters R. Titanium Salen Complexes with Appended Silver NHC Groups as Nucleophilic Carbene Reservoir for Cooperative Asymmetric Lewis Acid/NHC Catalysis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700436] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Katja Latendorf
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Melanie Mechler
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Irina Schamne
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Daniel Mack
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - René Peters
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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14
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Fang C, Lu T, Zhu J, Sun K, Du D. Formal [3 + 4] Annulation of α,β-Unsaturated Acyl Azoliums: Access to Enantioenriched N-H-Free 1,5-Benzothiazepines. Org Lett 2017; 19:3470-3473. [PMID: 28598636 DOI: 10.1021/acs.orglett.7b01457] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
An unprecedented formal [3 + 4] annulation of α,β-unsaturated acyl azoliums with 2-aminobenzenethiols has been utilized to synthesize enantioenriched N-H-free 1,5-benzothiazepines, which are recognized as privileged structures in numerous biologically active scaffolds. This protocol offers a rapid and direct pathway to access the target compounds with high enantioselectivities and has been applied in the concise synthesis of chiral drug (R)-thiazesim.
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Affiliation(s)
- Chao Fang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University , Nanjing, 210009, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University , Nanjing, 210009, P. R. China
| | - Jindong Zhu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University , Nanjing, 210009, P. R. China
| | - Kewen Sun
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University , Nanjing, 210009, P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University , Nanjing, 210009, P. R. China
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15
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Zhang W, Xu J, Cao J, Fang C, Zhu J, Lu T, Du D. N -heterocyclic carbene-mediated formal [3+3] annulation of isatin-derived α, β-unsaturated acids: Access to functionalized 3,4′-spirooxindole δ -lactones. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Bera S, Daniliuc CG, Studer A. Durch N-heterocyclische Carbene katalysierte oxidative Dearomatisierung von Indolen zu spirocyclischen Indoleninen mit quartärem Stereozentrum. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701485] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Srikrishna Bera
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstraße 40 48149 Münster Deutschland
| | - Armido Studer
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstraße 40 48149 Münster Deutschland
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17
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Bera S, Daniliuc CG, Studer A. Oxidative N-Heterocyclic Carbene Catalyzed Dearomatization of Indoles to Spirocyclic Indolenines with a Quaternary Carbon Stereocenter. Angew Chem Int Ed Engl 2017; 56:7402-7406. [PMID: 28471010 DOI: 10.1002/anie.201701485] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/31/2017] [Indexed: 01/02/2023]
Abstract
An efficient method for the asymmetric intramolecular dearomatization of indoles by using oxidative N-heterocyclic carbene catalysis is demonstrated. Valuable optically active spirocyclic indolenines bearing an all-carbon quaternary stereocenter are obtained in excellent yields and with excellent enantioselectivity. The starting indoles are readily prepared and the reactions proceed through an intramolecular indole 3-acylation with an in situ generated acyl azolium intermediate to form a spirocyclic ketone moiety.
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Affiliation(s)
- Srikrishna Bera
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
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18
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2 H -Pyran-2-ones and their annelated analogs as multifaceted building blocks for the fabrication of diverse heterocycles. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.028] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Iron-Catalyzed Oxidative Cyclization of 1,6-Enones with Aldehydes: Synthesis of Functionalized 3,4-Dihydro-2H-pyrans. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600721] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Xu J, Cao J, Fang C, Lu T, Du D. Organocatalytic C–C bond activation of cyclopropenones for ring-opening formal [3 + 2] cycloaddition with isatins. Org Chem Front 2017. [DOI: 10.1039/c6qo00734a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclopropenones were first applied as potential 3C synthons in ring-opening formal cycloaddition with isatins via an organocatalytic C–C bond activation strategy.
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Affiliation(s)
- Junyu Xu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Jing Cao
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Chao Fang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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21
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Yi L, Chen KQ, Liang ZQ, Sun DQ, Ye S. N-Heterocyclic Carbene-Catalyzed [3+3] Annulation of Indoline-2-thiones with Bromoenals: Synthesis of Indolo[2,3-b]dihydrothiopyranones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600726] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Liang Yi
- Marine College; Shandong University at Weihai; 180 Wenhua West Road Weihai 264209 People's Republic of China
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
| | - Kun-Quan Chen
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Zhi-Qin Liang
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - De-Qun Sun
- Marine College; Shandong University at Weihai; 180 Wenhua West Road Weihai 264209 People's Republic of China
| | - Song Ye
- Beijing National Laboratory for Molecular Science, Key Laboratory of Molecular Recognition and Functional, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
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22
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Krishnan J, Mathew S, Jayaprakash PA, Sasidhar BS, Mayadevi TS, Suresh E, Nair V. Sequential N-Heterocyclic Carbene-Catalyzed Reactions of Enals and Cyclic Aryldiene-1,3-Diones: Synthesis of Tricyclic Chromenones and Related Compounds. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jagadeesh Krishnan
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
- Academy of Scientific and Innovative Research; New Delhi- 110001 India
| | - Sneha Mathew
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
| | - P. Anjana Jayaprakash
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
| | - B. S. Sasidhar
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
- Academy of Scientific and Innovative Research; New Delhi- 110001 India
| | - T. S. Mayadevi
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
| | - E. Suresh
- Analytical Department and Centralized Instrument Facility; CSIR-CSMCRI; Bhavnagar 364 002 India
| | - Vijay Nair
- Chemical Science and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum- 695 019 India
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23
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Wang L, Zhu G, Tang W, Lu T, Du D. DMAP-promoted in situ activation of bromoacetic acid as a 2-carbon synthon for facile synthesis of pyridines and fused pyridin-2-ones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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24
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Dong S, Fang C, Tang W, Lu T, Du D. Alkynyl Acylammoniums as Electrophilic 3C Synthons in a Formal [3 + 3] Annulation: Access to Functionalized 4H-Pyran-4-ones. Org Lett 2016; 18:3882-5. [DOI: 10.1021/acs.orglett.6b01891] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Shuding Dong
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Chao Fang
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Weifang Tang
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ding Du
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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25
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Tang W, Du D. Access to Spiro and Fused Indole Derivatives from α,β-Unsaturated Aldehydes Enabled by N-Heterocyclic Carbene Catalysis. CHEM REC 2016; 16:1489-500. [DOI: 10.1002/tcr.201600018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 01/27/2023]
Affiliation(s)
- Weifang Tang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University; Nanjing 210009 P.R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University; Nanjing 210009 P.R. China
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26
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Krishnan J, Sinu CR, Anusree M, Seetha Lakshmi KC, Mayadevi TS, Eringathodi S, Nair V. Synthesis of Cyclopentachromans byN-Heterocyclic Carbene-Mediated Homoenolate Annulation of Chroman-3-ene-4-ones. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jagadeesh Krishnan
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
- Academy of Scientific and Innovative Research, New Delhi; 110001 India
| | - C. R. Sinu
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
| | - M. Anusree
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
| | - K. C. Seetha Lakshmi
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
- School of Chemical Sciences; Mahatma Gandhi University; Kottayam 686560 India
| | - T. S. Mayadevi
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
| | - Suresh Eringathodi
- Analytical Department and Centralized Instrument Facility; CSIR-CSMCRI; Bhavnagar 364 002 India
| | - Vijay Nair
- Chemical Sciences and Technology Division; National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Trivandrum 695 019 India
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27
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Jia Y, Li T, Yu C, Jiang B, Yao C. A facile one-pot synthesis of 2,3-diarylated benzo[b]furans via relay NHC and palladium catalysis. Org Biomol Chem 2016; 14:1982-7. [PMID: 26754554 DOI: 10.1039/c5ob02336j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient one-pot synthesis of 2,3-diarylated benzo[b]furans was realized through the relay catalysis of N-Heterocyclic Carbene (NHC) and palladium from substituted 2'-bromodiphenylbromomethanes and aryl aldehydes. The easy availability of the starting materials, good compatibility of catalysts, convergent assembly and concomitant modification of the target scaffold, and potential utilization value of the products make this strategy attractive in organic synthesis.
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Affiliation(s)
- Yanyan Jia
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Tuanjie Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Chenxia Yu
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Bo Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
| | - Changsheng Yao
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China.
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28
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Xie Y, Yu C, Que Y, Li T, Wang Y, Lu Y, Wang W, Shen S, Yao C. N-Heterocyclic carbene-triggered transition-metal-free synthesis of 2,3-disubstituted benzofuran derivatives. Org Biomol Chem 2016; 14:6463-9. [DOI: 10.1039/c6ob00363j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An NHC-triggered, transition-metal-free strategy for the efficient synthesis of 2,3-disubstituted benzofuran derivatives in moderate to excellent yields from aryl or alkyl aldehydes and o-quinone methides has been developed.
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Affiliation(s)
- Yuanwei Xie
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Chenxia Yu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Yonglei Que
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Tuanjie Li
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Yuhong Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Yinan Lu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Wenjing Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Shide Shen
- Xuzhou Institute of Architectural Technology
- Xuzhou
- China
| | - Changsheng Yao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
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29
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Zhu L, Yu C, Li T, Wang Y, Lu Y, Wang W, Yao C. N-Heterocyclic carbene-catalyzed [4 + 2] cyclization of α,β-unsaturated carboxylic acids bearing γ-H with isatins: an enantioselective synthesis of spirocyclic oxindole–dihydropyranones. Org Biomol Chem 2016; 14:1485-91. [DOI: 10.1039/c5ob02160j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An NHC-catalyzed asymmetric [4 + 2] annulation of isatins and α,β-unsaturated carboxylic acids bearing γ-H gave spirocyclic oxindole–dihydropyranones successfully via an in situ activation strategy.
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Affiliation(s)
- Ling Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Chenxia Yu
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Tuanjie Li
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Yuhong Wang
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Yinan Lu
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Wenjing Wang
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Changsheng Yao
- School of Chemistry and Chemical Engineering
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
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30
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Xu J, Zhang W, Liu Y, Zhu S, Liu M, Hua X, Chen S, Lu T, Du D. Formal [3 + 3] annulation of isatin-derived 2-bromoenals with 1,3-dicarbonyl compounds enabled by Lewis acid/N-heterocyclic carbene cooperative catalysis. RSC Adv 2016. [DOI: 10.1039/c5ra27848a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Several novel isatin-derived 2-bromoenals were applied for formal [3 + 3] annulation with 1,3-dicarbonyl compounds enabled by NHC/Lewis acid cooperative catalysis.
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Affiliation(s)
- Junyu Xu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Weiguo Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Yishan Liu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Suzhen Zhu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ming Liu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Xi Hua
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Siyi Chen
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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31
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Bai X, Lv L, Li Z. Copper-catalyzed tandem trifluoromethylation–cyclization of olefinic carbonyls: synthesis of trifluoromethylated 2,3-dihydrofurans and 3,4-dihydropyrans. Org Chem Front 2016. [DOI: 10.1039/c6qo00137h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalyzed trifluoromethylation–cyclization of olefinic carbonyls was developed. With this method, a variety of 2,3-dihydrofuran and 3,4-dihydropyran derivatives containing a CF3 group were selectively obtained in moderate to good yields.
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Affiliation(s)
- Xiaohui Bai
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Leiyang Lv
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Zhiping Li
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
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32
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Venkata Mani Padmaja D, Sinu C, Krishnan J, Paul RR, Varughese S, Seetha Lakshmi K, Nair V. Expedient synthesis of tricyclic benzopyran-2-ones via N-Heterocyclic carbene catalyzed annulation of enals to α-methylene cycloalkanones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Jiang D, Dong S, Tang W, Lu T, Du D. N-Heterocyclic Carbene-Catalyzed Formal [3 + 2] Annulation of α-Bromoenals with 3-Aminooxindoles: A Stereoselective Synthesis of Spirooxindole γ-Butyrolactams. J Org Chem 2015; 80:11593-7. [DOI: 10.1021/acs.joc.5b02188] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Delu Jiang
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Shuding Dong
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Weifang Tang
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Ding Du
- State Key Laboratory of Natural
Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
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34
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Bera S, Daniliuc CG, Studer A. Enantioselective Synthesis of Substituted δ-Lactones by Cooperative Oxidative N-Heterocyclic Carbene and Lewis Acid Catalysis. Org Lett 2015; 17:4940-3. [DOI: 10.1021/acs.orglett.5b01932] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Srikrishna Bera
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
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35
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Li GT, Gu Q, You SL. Enantioselective annulation of enals with 2-naphthols by triazolium salts derived from l-phenylalanine. Chem Sci 2015; 6:4273-4278. [PMID: 29218195 PMCID: PMC5707468 DOI: 10.1039/c5sc00731c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 04/27/2015] [Indexed: 12/25/2022] Open
Abstract
A series of chiral triazolium salts have been synthesized from methyl l-phenylalaninate hydrochloride. The NHCs derived from this class of novel triazolium salts were found to be highly efficient catalysts in the annulation reaction of enals and 2-naphthols. These reactions proceeded with high chemoselectivity and wide substrate scope affording enantioenriched β-arylsplitomicins in good yields with up to 96% ee.
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Affiliation(s)
- Guo-Tai Li
- School of Pharmacy , East China University of Science and Technology , 130 Mei-Long Road , Shanghai 200237 , China .
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Qing Gu
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Shu-Li You
- School of Pharmacy , East China University of Science and Technology , 130 Mei-Long Road , Shanghai 200237 , China .
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
- Collaborative Innovation Center of Chemical Science and Engineering , Tianjin , China
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36
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Xu J, Hu S, Lu Y, Dong Y, Tang W, Lu T, Du D. N-Heterocyclic Carbene-Catalyzed Umpolung Formal [3+3] Cycloaddition of Enals with Isatogens: Access to Fused Indolin-3-ones with a Tetrasubstituted Carbon Stereocenter. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401070] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Xie Y, Yu C, Li T, Tu S, Yao C. An NHC-catalyzed in situ activation strategy to β-functionalize saturated carboxylic acid: an enantioselective formal [3+2] annulation for spirocyclic oxindolo-γ-butyrolactones. Chemistry 2015; 21:5355-9. [PMID: 25689040 DOI: 10.1002/chem.201500345] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Indexed: 01/07/2023]
Abstract
An in situ NHC-catalyzed activation strategy to β-functionalize saturated carboxylic acid was developed. This asymmetric formal [3+2] annulation could deliver spirocyclic oxindolo-γ-butyrolactones from saturated carboxylic acid and isatin in good yields with high to excellent enantioselectivities. The easy availability of the starting materials, direct installation of functional units at unreactive carbon atom and the convergent assembly make this protocol attractive in the field of organic synthesis.
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Affiliation(s)
- Yuanwei Xie
- School of Chemistry and Chemical Engineering, Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116 (P.R. China)
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38
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39
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Hu S, Wang B, Zhang Y, Tang W, Fang M, Lu T, Du D. N-Heterocyclic carbene-catalyzed annulation of cyclic β-enamino esters with enals: access to functionalized indolo[2,3-a]quinolizidines. Org Biomol Chem 2015; 13:4661-7. [DOI: 10.1039/c5ob00176e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel synthetic approach to functionalized indolo[2,3-a]quinolizidines is developed via an N-heterocyclic carbene-catalyzed annulation of cyclic β-enamino esters with enals.
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Affiliation(s)
- Shihe Hu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Bingyang Wang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Yu Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Weifang Tang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Mengyuan Fang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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40
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Seetha Lakshmi KC, Krishnan J, Sinu CR, Varughese S, Nair V. N-Heterocyclic Carbene Catalyzed Annulation of Enals to Aurone Analogs: Synthesis of Cyclopentene-Fused Spirobenzofuran-3-ones. Org Lett 2014; 16:6374-7. [DOI: 10.1021/ol5031684] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. C. Seetha Lakshmi
- Chemical
Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum-695 019, India
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam-686 560, India
| | - Jagadeesh Krishnan
- Chemical
Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum-695 019, India
| | - C. R. Sinu
- Chemical
Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum-695 019, India
| | - Sunil Varughese
- Chemical
Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum-695 019, India
| | - Vijay Nair
- Chemical
Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum-695 019, India
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41
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Gaggero N, Albanese DC, Nava D. A new approach to 4,6-disubstituted-3,4-dihydropyran-2-ones by Domino Michael addition-cyclization reaction under PTC conditions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Seetha Lakshmi KC, Sinu CR, Padmaja DVM, Gopinathan A, Suresh E, Nair V. A Novel Intramolecular Homoenolate Annulation Leading to the Formation of Cyclopentene-Fused Macrocycles. Org Lett 2014; 16:5532-5. [DOI: 10.1021/ol5023239] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. C. Seetha Lakshmi
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, India
| | - C. R. Sinu
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
| | - D. V. M. Padmaja
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
| | | | - Eringathodi Suresh
- Analytical
Department and Centralized Instrument Facility, CSIR-CSMCRI, Bhavnagar 364 002, India
| | - Vijay Nair
- Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, India
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