1
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Yan J, Zhou Z, He Q, Chen G, Wei H, Xie W. The applications of catalytic asymmetric halocyclization in natural product synthesis. Org Chem Front 2022. [DOI: 10.1039/d1qo01395e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Catalytic asymmetric halocyclization of olefinic substrate has evolved rapidly and been well utilized as a practical strategy for constructing enantioenriched cyclic skeletons in natural product synthesis.
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Affiliation(s)
- Jiahang Yan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Zhiqiang Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Qiaoqiao He
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Guzhou Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
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2
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Shaw K, Niyogi S, Nandi R, Bisai V. Catalytic asymmetric total syntheses of (+)-α-cuparenone, (+)-cuparene and (+)-herbertene. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Niyogi S, Khatua A, Bisai V. Unified approach to the sesquiterpenoids, lauranes and cyclolauranes: Total synthesis of (±)-isolaurene. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Hullaert J, Winne JM. (5,6-Dihydro-1,4-dithiin-2-yl)methanol as a Versatile Allyl-Cation Equivalent in (3+2) Cycloaddition Reactions. Angew Chem Int Ed Engl 2018; 55:13254-13258. [PMID: 27653810 DOI: 10.1002/anie.201606411] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/12/2016] [Indexed: 12/15/2022]
Abstract
The title heterocyclic alcohol readily generates a sulfur-substituted allylic cation upon simple treatment with a protic acid, thus facilitating a synthetically useful stepwise (3+2) cycloaddition reaction pathway with a range of conjugated-olefin-type substrates. The introduction of an allyl fragment in this way provided rapid access to a variety of cyclopentanoid scaffolds. The cyclic nature of the cation precursor alcohol was shown to be instrumental for efficient cycloaddition reactions to take place, thus indicating an attractive strategy for controlling the reactivity of heteroatom-substituted allyl cations. The formal cycloaddition reaction is highly regio- and stereoselective and was also used for a short total synthesis of the natural product cuparene in racemic form through a cycloaddition-hydrodesulfurization sequence.
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Affiliation(s)
- Jan Hullaert
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Gent, 9000, Belgium
| | - Johan M Winne
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Gent, 9000, Belgium.
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5
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Hullaert J, Winne JM. (5,6-Dihydro-1,4-dithiin-2-yl)methanol as a Versatile Allyl-Cation Equivalent in (3+2) Cycloaddition Reactions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jan Hullaert
- Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 S4 Gent 9000 Belgium
| | - Johan M. Winne
- Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 S4 Gent 9000 Belgium
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6
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Perry MA, Rychnovsky SD. Generation, structure and reactivity of tertiary organolithium reagents. Nat Prod Rep 2015; 32:517-33. [PMID: 25475042 DOI: 10.1039/c4np00125g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tertiary organolithium reagents have great potential in natural product synthesis. Recent progress in organolithium generation has made them accessible. Their utility and stereoselectivity in synthesis is discussed.
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Luderer MR, Mealy MJ, Bailey WF. Asymmetric Intramolecular Carbolithiation of Achiral Substrates: Synthesis of Enantioenriched (R)-(+)-Cuparene and (R)-(+)-Herbertene. J Org Chem 2014; 79:10722-6. [PMID: 25303318 DOI: 10.1021/jo502139m] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Matthew R. Luderer
- Department
of Natural Science, Mathematics, and Engineering, University of Pittsburgh at Greensburg, Greensburg, Pennsylvania 15601, United States
| | - Michael J. Mealy
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - William F. Bailey
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
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8
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Reich HJ. Role of Organolithium Aggregates and Mixed Aggregates in Organolithium Mechanisms. Chem Rev 2013; 113:7130-78. [DOI: 10.1021/cr400187u] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Hans J. Reich
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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9
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Lebœuf D, Wright CM, Frontier AJ. Reagent Control of [1,2]-Wagner-Meerwein Shift Chemoselectivity Following the Nazarov Cyclization: Application to the Total Synthesis of Enokipodin B. Chemistry 2013; 19:4835-41. [PMID: 23436444 DOI: 10.1002/chem.201203395] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 11/26/2012] [Indexed: 02/05/2023]
Affiliation(s)
- David Lebœuf
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
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10
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Grigg RD, Rigoli JW, Van Hoveln R, Neale S, Schomaker JM. Beyond benzyl grignards: facile generation of benzyl carbanions from styrenes. Chemistry 2012; 18:9391-6. [PMID: 22718528 PMCID: PMC4490829 DOI: 10.1002/chem.201200642] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Indexed: 11/07/2022]
Abstract
Benzylic functionalization is a convenient approach towards the conversion of readily available aromatic hydrocarbon feedstocks into more useful molecules. However, the formation of carbanionic benzyl species from benzyl halides or similar precursors is far from trivial. An alternative approach is the direct reaction of a styrene with a suitable coupling partner, but these reactions often involve the use of precious-metal transition-metal catalysts. Herein, we report the facile and convenient generation of reactive benzyl anionic species from styrenes. A Cu(I)-catalyzed Markovnikov hydroboration of the styrenic double bond by using a bulky pinacol borane source is followed by treatment with KOtBu to facilitate a sterically induced cleavage of the C-B bond to produce a benzylic carbanion. Quenching this intermediate with a variety of electrophiles, including CO(2), CS(2), isocyanates, and isothiocyanates, promotes C-C bond formation at the benzylic carbon atom. The utility of this methodology was demonstrated in a three-step, two-pot synthesis of the nonsteroidal anti-inflammatory drug (±)-flurbiprofen.
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Affiliation(s)
- R. David Grigg
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Fax: (+) (001) 608-265-4534
| | - Jared W. Rigoli
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Fax: (+) (001) 608-265-4534
| | - Ryan Van Hoveln
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Fax: (+) (001) 608-265-4534
| | - Samuel Neale
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Fax: (+) (001) 608-265-4534
| | - Jennifer M. Schomaker
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, Fax: (+) (001) 608-265-4534
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11
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Hudrlik PF, Hudrlik AM, Jeilani YA. Intramolecular nucleophilic attack at silicon in o-silylbenzyl alcohols. Generation of allyl and benzyl anion equivalents. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Donohoe TJ, Jahanshahi A, Tucker MJ, Bhatti FL, Roslan IA, Kabeshov M, Wrigley G. Exerting control over the acyloin reaction. Chem Commun (Camb) 2011; 47:5849-51. [PMID: 21503291 DOI: 10.1039/c1cc11654a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synthetic method for conducting the acyloin reaction using electron transfer in solution is reported. By linking two esters via their oxygen atoms, it was possible to perform crossed acyloin reactions between two different ester functionalities and display a high degree of preference for an intramolecular coupling process.
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Affiliation(s)
- Timothy J Donohoe
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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13
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Ivanov R, Marek I, Cohen T. The superiority of properly prepared lithium 1-N,N-dimethylaminonaphthalenide (LDMAN) over other aromatic radical-anions for the generation of organolithiums by reductive lithiation. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.10.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Yang A, Butela H, Deng K, Doubleday MD, Cohen T. Organolithiums by reductive lithiation: the catalytic aromatic method versus the use of preformed aromatic radical-anions. Naphthalene can behave as a catalyst or an inhibitor. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.03.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Wasnaire P, Wiaux M, Touillaux R, Markó IE. Reductive cyclisation of Morita–Baylis–Hillman adducts. A simple approach towards substituted hydrindanones and decalones. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.11.143] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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18
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Medium-dependent lithiated side products in the reductive lithiation of allylic phenyl thioethers. Diethyl ether versus tetrahydrofuran. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.04.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Wolckenhauer SA, Rychnovsky SD. Stereochemical course of the reductive spiroannulations of N-Boc and N-benzyl 2-cyanopiperidines. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.099] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Giannini A, Coquerel Y, Greene AE, Deprés JP. Access to diversely α-substituted cyclopentenones from α-chlorocyclopentenones. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.07.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Streiff S, Ribeiro N, Désaubry L. Unexpected cleavage of tetrahydrofuran by catalytic reductive lithiation. Chem Commun (Camb) 2004:346-7. [PMID: 14740070 DOI: 10.1039/b312972a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Stéphane Streiff
- UMR 7509, Centre de Neurochimie, 5 rue Blaise Pascal, 67084 Strasbourg Cedex, France
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22
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García GV, Nudelman NS. TANDEM REACTIONS INVOLVING ORGANOLITHIUM REAGENTS. A REVIEW. ORG PREP PROCED INT 2003. [DOI: 10.1080/00304940309355860] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Nayek A, Drew MG, Ghosh S. Convenient route to enantiopure aryl cyclopentanes via Diels–Alder reaction of asymmetric dienes. Total synthesis of (+)-herbertene and (+)-cuparene. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00807-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Screttas CG, Heropoulos GA, Micha-Screttas M, Steele BR, Catsoulacos DP. Reductive lithiation of alkyl phenyl sulfides in diethyl ether. A ready access to α,α-dialkylbenzyllithiums. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01371-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Donohoe TJ, House D. Ammonia free partial reduction of aromatic compounds using lithium di-tert-butylbiphenyl (LiDBB). J Org Chem 2002; 67:5015-8. [PMID: 12098328 DOI: 10.1021/jo0257593] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reduction of a series of hetero- and carbocyclic aromatic compounds under ammonia free conditions is described. By using LiDBB as a source of electrons, bis(methoxyethyl)amine (BMEA) as a protonating agent, and THF as a solvent, we were able to accomplish reductions more usually performed under Birch type conditions. Moreover, the use of these conditions was further enhanced by the tolerance of the reducing system toward reactive electrophiles that cannot be used successfully in ammonia.
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