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Silyldienolates in Organocatalytic Enantioselective Vinylogous Mukaiyama-Type Reactions: A Review. Molecules 2021; 26:molecules26226902. [PMID: 34833996 PMCID: PMC8620713 DOI: 10.3390/molecules26226902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 11/17/2022] Open
Abstract
Mukaiyama aldol, Mannich, and Michael reactions are arguably amongst the most important C-C bond formation processes and enable access to highly relevant building blocks of various natural products. Their vinylogous extensions display equally high potential in the formation of important key intermediates featuring even higher functionalization possibilities through an additional conjugated C-C double bond. Hence, it is much desired to develop highly selective vinylogous methods in order to enable unconventional, more efficient asymmetric syntheses of biologically active compounds. In this regard, silyl-dienolates were discovered to display high regioselectivities due to their tendency toward γ-additions. The control of the enantio- and diastereoinduction of these processes have been for a long time dominated by transition metal catalysis, but it received serious competition by the application of organocatalytic approaches since the beginning of this century. In this review, the organocatalytic applications of silyl-dienolates in asymmetric vinylogous C-C bond formations are summarized, focusing on their scope, characteristics, and limitations.
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2
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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3
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Zhang HJ, Yin L. Asymmetric Synthesis of α,β-Unsaturated δ-Lactones through Copper(I)-Catalyzed Direct Vinylogous Aldol Reaction. J Am Chem Soc 2018; 140:12270-12279. [DOI: 10.1021/jacs.8b07929] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hai-Jun Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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4
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Frías M, Cieślik W, Fraile A, Rosado-Abón A, Garrido-Castro AF, Yuste F, Alemán J. Development and Application of Asymmetric Organocatalytic Mukaiyama and Vinylogous Mukaiyama-Type Reactions. Chemistry 2018; 24:10906-10933. [DOI: 10.1002/chem.201801866] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Indexed: 02/02/2023]
Affiliation(s)
- María Frías
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Wioleta Cieślik
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Alberto Fraile
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - Anielka Rosado-Abón
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Cd. Universitaria, Coyoacán 04510 México D.F. México
| | - Alberto F. Garrido-Castro
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
| | - Francisco Yuste
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Cd. Universitaria, Coyoacán 04510 México D.F. México
| | - José Alemán
- Department of Organic Chemistry; Universidad Autónoma de Madrid, Calle Francisco Tomás y Valiente, 7; Cantoblanco 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
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5
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Laina-Martín V, Humbrías-Martín J, Fernández-Salas JA, Alemán J. Asymmetric vinylogous Mukaiyama aldol reaction of isatins under bifunctional organocatalysis: enantioselective synthesis of substituted 3-hydroxy-2-oxindoles. Chem Commun (Camb) 2018; 54:2781-2784. [DOI: 10.1039/c8cc00759d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A highly enantioselective organocatalytic vinylogous Mukaiyama aldol reaction of silyloxy dienes and isatins under bifunctional organocatalysis is presented.
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Affiliation(s)
- Víctor Laina-Martín
- Departamento de Química Orgánica (Módulo 1)
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- Madrid 28049
- Spain
| | - Jorge Humbrías-Martín
- Departamento de Química Orgánica (Módulo 1)
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- Madrid 28049
- Spain
| | - José A. Fernández-Salas
- Departamento de Química Orgánica (Módulo 1)
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- Madrid 28049
- Spain
| | - José Alemán
- Departamento de Química Orgánica (Módulo 1)
- Facultad de Ciencias
- Universidad Autónoma de Madrid
- Madrid 28049
- Spain
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6
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Laina-Martín V, del Río-Rodríguez R, Díaz-Tendero S, Fernández-Salas JA, Alemán J. Asymmetric synthesis of Rauhut–Currier-type esters via Mukaiyama–Michael reaction to acylphosphonates under bifunctional catalysis. Chem Commun (Camb) 2018; 54:13941-13944. [DOI: 10.1039/c8cc07561a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective organocatalytic Mukaiyama–Michael reaction of silyloxy dienes and α,β-unsaturated acyl phosphonates under bifunctional organocatalysis is presented.
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Affiliation(s)
- Víctor Laina-Martín
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
| | - Roberto del Río-Rodríguez
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
| | - Sergio Díaz-Tendero
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
- Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias, Universidad Autónoma de Madrid
- 28049 Madrid
| | - Jose A. Fernández-Salas
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
| | - José Alemán
- Departamento de Química Orgánica (Módulo 1), Facultad de Ciencias, Universidad Autónoma de Madrid
- 28049-Madrid
- Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid
- 28049 Madrid
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Abstract
γ-Butenolides, γ-butyrolactones, and derivatives, especially in enantiomerically pure form, constitute the structural core of numerous natural products which display an impressive range of biological activities which are important for the development of novel physiological and therapeutic agents. Furthermore, optically active γ-butenolides and γ-butyrolactones serve also as a prominent class of chiral building blocks for the synthesis of diverse biological active compounds and complex molecules. Taking into account the varying biological activity profiles and wide-ranging structural diversity of the optically active γ-butenolide or γ-butyrolactone structure, the development of asymmetric synthetic strategies for assembling such challenging scaffolds has attracted major attention from synthetic chemists in the past decade. This review offers an overview of the different enantioselective synthesis of γ-butenolides and γ-butyrolactones which employ catalytic amounts of metal complexes or organocatalysts, with emphasis focused on the mechanistic issues that account for the observed stereocontrol of the representative reactions, as well as practical applications and synthetic potentials.
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Affiliation(s)
- Bin Mao
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands.,National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology , Hangzhou 310014, P. R. China
| | - Martín Fañanás-Mastral
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands.,Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela , Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands
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Jin H, Cho SM, Lee J, Ryu DH. Role of Configuration at C6 in Catalytic Activity of l-Proline-Derived Bifunctional Organocatalysts. Org Lett 2017; 19:2434-2437. [PMID: 28445063 DOI: 10.1021/acs.orglett.7b01000] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
l-Proline-derived chiral bifunctional (thio)urea organocatalysts epi-PTU and epi-PU were newly synthesized, and their catalytic performances were compared with their C6 epimeric catalysts PTU and PU in various Michael reactions of nitrostyrene in terms of reactivities and stereoselectivities. The experimental results indicate that a proper relative stereochemistry at C2 and C6 in l-proline-derived bifunctional organocatalysts is important for successful catalysis and that catalysts (PTU and PU) with the 2S,6R configuration are much more efficient.
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Affiliation(s)
- Hui Jin
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
| | - Soo Min Cho
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
| | - Juyeol Lee
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
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9
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Zhang Y, Wei BW, Wang WX, Deng LL, Nie LJ, Luo HQ, Fan XL. Direct vinylogous oxidative cross-dehydrogenative coupling of 4-nitroisoxazoles with N-aryl tetrahydroisoquinolines in water under air conditions. RSC Adv 2017. [DOI: 10.1039/c6ra26126d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using water as the solvent and air as the oxidant, a direct catalytic vinylogous cross-dehydrogenative coupling reaction was developed.
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Affiliation(s)
- Yong Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Biao-Wen Wei
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
- School of Chemistry & Chemical Engineering
| | - Wen-Xin Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Lei-Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Long-Jun Nie
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Hai-Qing Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Xiao-Lin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
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10
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Naskar S, Das I. Elusive Thiyl Radical Migration in a Visible Light Induced Chemoselective Rearrangement of γ-Keto Acrylate Thioesters: Synthesis of Substituted Butenolides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Sandip Naskar
- Organic and Medicianl Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4, Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India, Fax: (+91)- 33-2473-5197
| | - Indrajit Das
- Organic and Medicianl Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4, Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India, Fax: (+91)- 33-2473-5197
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11
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Zhang Y, Wei BW, Zou LN, Kang ML, Luo HQ, Fan XL. ‘On water’ direct vinylogous Henry (nitroaldol) reactions of 3,5-dimethyl-4-nitroisoxazole with aldehydes and trifluoromethyl ketones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Graphite oxide as catalyst for diastereoselective Mukaiyama aldol reaction of 2-(trimethylsilyloxy)furan in solvent free conditions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.07.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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James T, van Gemmeren M, List B. Development and Applications of Disulfonimides in Enantioselective Organocatalysis. Chem Rev 2015; 115:9388-409. [DOI: 10.1021/acs.chemrev.5b00128] [Citation(s) in RCA: 210] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas James
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Manuel van Gemmeren
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
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14
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Das U, Chen YR, Tsai YL, Lin W. Organocatalytic Enantioselective Direct Vinylogous Michael Addition of γ-Substituted Butenolides to 3-Aroyl Acrylates and 1,2-Diaroylethylenes. Chemistry 2013; 19:7713-7. [DOI: 10.1002/chem.201301332] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Indexed: 01/05/2023]
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15
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Hou G, Yu J, Yu C, Wu G, Miao Z. Enantio- and Diastereoselective Vinylogous Mukaiyama Aldol Reactions of α-Keto Phosphonates with 2-(Trimethylsilyloxy)- furan Catalyzed by Bis(oxazoline)-Copper Complexes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200810] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Metal or ammonium alginates as Lewis base catalysts for the 1,2-addition of silyl nucleophiles to carbonyl compounds. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.02.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Affiliation(s)
- Gerrit Symkenberg
- Institut für Organische Chemie and Centre of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Markus Kalesse
- Institut für Organische Chemie and Centre of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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18
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Rassu G, Zambrano V, Tanca R, Sartori A, Battistini L, Zanardi F, Curti C, Casiraghi G. 3-Alkenyl-2-silyloxyindoles: An Enabling, Yet Understated Progeny of Vinylogous Carbon Nucleophiles. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101446] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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19
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Du GF, He L, Gu CZ, Dai B. Diastereoselective Synthesis of γ-Butenolides Catalyzed by Potassium tert-Butoxide. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.538888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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20
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Pansare SV, Paul EK. The Organocatalytic Vinylogous Aldol Reaction: Recent Advances. Chemistry 2011; 17:8770-9. [DOI: 10.1002/chem.201101269] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Casiraghi G, Battistini L, Curti C, Rassu G, Zanardi F. The Vinylogous Aldol and Related Addition Reactions: Ten Years of Progress. Chem Rev 2011; 111:3076-154. [DOI: 10.1021/cr100304n] [Citation(s) in RCA: 454] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Casiraghi
- Dipartimento Farmaceutico, Università degli Studi di Parma, Viale G. P. Usberti 27A, I-43124 Parma, Italy
| | - Lucia Battistini
- Dipartimento Farmaceutico, Università degli Studi di Parma, Viale G. P. Usberti 27A, I-43124 Parma, Italy
| | - Claudio Curti
- Dipartimento Farmaceutico, Università degli Studi di Parma, Viale G. P. Usberti 27A, I-43124 Parma, Italy
| | - Gloria Rassu
- Istituto di Chimica Biomolecolare del CNR, Traversa La Crucca 3, I-07100 Li Punti, Sassari, Italy
| | - Franca Zanardi
- Dipartimento Farmaceutico, Università degli Studi di Parma, Viale G. P. Usberti 27A, I-43124 Parma, Italy
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Zhang Y, Shao YL, Xu HS, Wang W. Organocatalytic Direct Asymmetric Vinylogous Michael Reaction of an α,β-Unsaturated γ-Butyrolactam with Enones. J Org Chem 2011; 76:1472-4. [DOI: 10.1021/jo102223v] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
| | - Yong-Liang Shao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
| | - Hai-Sen Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
| | - Wei Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China
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23
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Pansare SV, Paul EK. Organocatalytic asymmetric direct vinylogous aldol reactions of γ-crotonolactone with aromatic aldehydes. Chem Commun (Camb) 2011; 47:1027-9. [DOI: 10.1039/c0cc04191b] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Ratjen L, García-García P, Lay F, Beck ME, List B. Disulfonimide-Catalyzed Asymmetric Vinylogous and Bisvinylogous Mukaiyama Aldol Reactions. Angew Chem Int Ed Engl 2010; 50:754-8. [DOI: 10.1002/anie.201005954] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 10/18/2010] [Indexed: 11/08/2022]
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25
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Ratjen L, García-García P, Lay F, Beck ME, List B. Disulfonimid-katalysierte asymmetrische vinyloge und bisvinyloge Mukaiyama-Aldolreaktionen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005954] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Singh RP, Foxman BM, Deng L. Asymmetric vinylogous aldol reaction of silyloxy furans with a chiral organic salt. J Am Chem Soc 2010; 132:9558-60. [PMID: 20583835 PMCID: PMC2925177 DOI: 10.1021/ja103331t] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Despite their synthetic significance there is a general lack of asymmetric vinylogous aldol reactions that tolerate variations of both the silyloxy furans and aldehydes. We have developed a new chiral organic catalyst based on a carboxylate-ammonium salt prepared from a thiourea-amine and a carboxylic acid. This new catalyst enabled us to develop an efficient asymmetric vinylogous aldol reaction of unprecedented scope with respect to both 2-trimethylsilyloxy furans and aldehydes.
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Affiliation(s)
- Ravi P. Singh
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Li Deng
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110
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27
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Yang Y, Zheng K, Zhao J, Shi J, Lin L, Liu X, Feng X. Asymmetric Direct Vinylogous Aldol Reaction of Unactivated γ-Butenolide to Aldehydes. J Org Chem 2010; 75:5382-4. [DOI: 10.1021/jo100946d] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jiannan Zhao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jian Shi
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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