1
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Zhao D, Xu B, Zhu C. Migratory allylic arylation of 1,n-enols enabled by nickel catalysis. Nat Commun 2023; 14:3308. [PMID: 37286547 DOI: 10.1038/s41467-023-38865-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/16/2023] [Indexed: 06/09/2023] Open
Abstract
Transition-metal-catalyzed allylic substitution reactions (Tsuji-Trost reactions) proceeding via a π-allyl metal intermediate have been demonstrated as a powerful tool in synthetic chemistry. Herein, we disclose an unprecedented π-allyl metal species migration, walking on the carbon chain involving 1,4-hydride shift as confirmed by deuterium labeling experiments. This migratory allylic arylation can be realized under dual catalysis of nickel and lanthanide triflate, a Lewis acid. Olefin migration has been observed to preferentially occur with the substrate of 1,n-enols (n ≥ 3). The robust nature of the allylic substitution strategy is reflected by a broad scope of substrates with the control of regio- and stereoselectivity. DFT studies suggest that π-allyl metal species migration consists of the sequential β-H elimination and migratory insertion, with diene not being allowed to release from the metal center before producing a new π-allyl nickel species.
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Affiliation(s)
- Dan Zhao
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
| | - Bing Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China
- Zhuhai Fudan Innovation Institute, Zhuhai, 519000, China
| | - Can Zhu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.
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2
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Xu X, Shi Y, Wang D, Ding Y, Chen S, Zhang X. Cobalt(III)-Catalyzed and DMSO-Involved Allylation of 1,3-Dicarbonyl Compounds with Alkenes. J Org Chem 2022; 87:14352-14363. [PMID: 36263891 DOI: 10.1021/acs.joc.2c01796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cobalt(III)-catalyzed allylation of 1,3-dicarbonyl compounds has been reported with in situ generated allyl reagents from alkenes and dimethyl sulfoxide (DMSO). This novel protocol enables a high regio- and stereoselective access for a broad range of allyl 1,3-dicarbonyl compounds. In the transformation, DMSO plays the role of a C1 source, and it incorporates with alkenes to form the allyl reagent allylic methyl thioether. Moreover, a multiple-step pathway has been proposed to rationalize the mechanism study, which involves silver-mediated coupling, Co(III)-catalyzed π-allylation, and intermolecular nucleophilic substitution.
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Affiliation(s)
- Xuefeng Xu
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yue Shi
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Di Wang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yanhua Ding
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Shuyang Chen
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Xu Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
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3
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Shi Y, Wu H, Huang G. Rhodium( i)/bisoxazolinephosphine-catalyzed regio- and enantioselective amination of allylic carbonates: a computational study. Org Chem Front 2021. [DOI: 10.1039/d1qo00370d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
DFT calculations were performed to investigate the rhodium(i)/bisoxazolinephosphine-catalyzed regio- and enantioselective amination of allylic carbonates.
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Affiliation(s)
- Yu Shi
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Hongli Wu
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Genping Huang
- Department of Chemistry
- School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Sciences
- Tianjin University
- Tianjin 300072
- P. R. China
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4
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Pizzolato SF, Štacko P, Kistemaker JCM, van Leeuwen T, Feringa BL. Phosphoramidite-based photoresponsive ligands displaying multifold transfer of chirality in dynamic enantioselective metal catalysis. Nat Catal 2020. [DOI: 10.1038/s41929-020-0452-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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5
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Xiong W, Xu G, Yu X, Tang W. P-Chiral Monophosphorus Ligands for Asymmetric Copper-Catalyzed Allylic Alkylation. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenrui Xiong
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xinhong Yu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
| | - Wenjun Tang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200037, China
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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6
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Skotnitzki J, Spessert L, Knochel P. Regio- und stereoselektive allylische Substitutionen chiraler sekundärer Alkylkupferverbindungen: Totalsynthese von (+)-Lasiol, (+)-13-Norfaranal und (+)-Faranal. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Juri Skotnitzki
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Deutschland
| | - Lukas Spessert
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Deutschland
| | - Paul Knochel
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Deutschland
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7
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Skotnitzki J, Spessert L, Knochel P. Regio- and Stereoselective Allylic Substitutions of Chiral Secondary Alkylcopper Reagents: Total Synthesis of (+)-Lasiol, (+)-13-Norfaranal, and (+)-Faranal. Angew Chem Int Ed Engl 2018; 58:1509-1514. [DOI: 10.1002/anie.201811330] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Juri Skotnitzki
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Germany
| | - Lukas Spessert
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Germany
| | - Paul Knochel
- Department Chemie; Ludwig-Maximilians-Universität München; Butenandtstraße 5-13, Haus F 81377 München Germany
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8
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Cheng Q, Tu HF, Zheng C, Qu JP, Helmchen G, You SL. Iridium-Catalyzed Asymmetric Allylic Substitution Reactions. Chem Rev 2018; 119:1855-1969. [PMID: 30582688 DOI: 10.1021/acs.chemrev.8b00506] [Citation(s) in RCA: 434] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, we summarize the origin and advancements of iridium-catalyzed asymmetric allylic substitution reactions during the past two decades. Since the first report in 1997, Ir-catalyzed asymmetric allylic substitution reactions have attracted intense attention due to their exceptionally high regio- and enantioselectivities. Ir-catalyzed asymmetric allylic substitution reactions have been significantly developed in recent years in many respects, including ligand development, mechanistic understanding, substrate scope, and application in the synthesis of complex functional molecules. In this review, an explicit outline of ligands, mechanism, scope of nucleophiles, and applications is presented.
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Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Hang-Fei Tu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , Nanjing 211816 , China
| | - Günter Helmchen
- Organisch-Chemisches Institut der Ruprecht-Karls , Universität Heidelberg , Im Neuenheimer Feld 270 , D-69120 Heidelberg , Germany
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
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9
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Zhu D, Lv L, Li CC, Ung S, Gao J, Li CJ. Umpolung of Carbonyl Groups as Alkyl Organometallic Reagent Surrogates for Palladium-Catalyzed Allylic Alkylation. Angew Chem Int Ed Engl 2018; 57:16520-16524. [DOI: 10.1002/anie.201809112] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/17/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Dianhu Zhu
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Leiyang Lv
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Chen-Chen Li
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Sosthene Ung
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Jian Gao
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
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10
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Zhu D, Lv L, Li CC, Ung S, Gao J, Li CJ. Umpolung of Carbonyl Groups as Alkyl Organometallic Reagent Surrogates for Palladium-Catalyzed Allylic Alkylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809112] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dianhu Zhu
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Leiyang Lv
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Chen-Chen Li
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Sosthene Ung
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Jian Gao
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Center for, Green Chemistry and Catalysis; McGill University; Montreal QC H3A 0B8 Canada
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11
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Lee Y, Park J, Cho SH. Generation and Application of (Diborylmethyl)zinc(II) Species: Access to Enantioenriched gem
-Diborylalkanes by an Asymmetric Allylic Substitution. Angew Chem Int Ed Engl 2018; 57:12930-12934. [DOI: 10.1002/anie.201805476] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Yeosan Lee
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Jinyoung Park
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Seung Hwan Cho
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
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12
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Lee Y, Park J, Cho SH. Generation and Application of (Diborylmethyl)zinc(II) Species: Access to Enantioenriched gem
-Diborylalkanes by an Asymmetric Allylic Substitution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805476] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yeosan Lee
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Jinyoung Park
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
| | - Seung Hwan Cho
- Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Rep. of Korea
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13
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Nguyen TNT, Thiel NO, Teichert JF. Copper(i)-catalysed asymmetric allylic reductions with hydrosilanes. Chem Commun (Camb) 2017; 53:11686-11689. [DOI: 10.1039/c7cc07008j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The copper(i)-catalysed asymmetric allylic reduction enables a regio- and stereoselective transfer of a hydride nucleophile in an SN2′-fashion onto allylic bromides.
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Affiliation(s)
| | - Niklas O. Thiel
- Institut für Chemie, Technische Universität Berlin
- 10623 Berlin
- Germany
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14
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Nallasivam JL, Fernandes RA. Pd-Catalyzed Site-Selective Mono-allylic Substitution and Bis-arylation by Directed Allylic C-H Activation: Synthesis of anti-γ-(Aryl,Styryl)-β-hydroxy Acids and Highly Substituted Tetrahydrofurans. J Am Chem Soc 2016; 138:13238-13245. [PMID: 27618469 DOI: 10.1021/jacs.6b06438] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient palladium-catalyzed site-selective arylation of γ-vinyl-γ-lactone by aryl boronic acid has been developed. γ-Vinyl-γ-lactone 1a has been contemplated as allyl electrophile donor for allylic arylation via π-allyl palladium intermediate using 1.5 equiv of aryl boronic acid 2. Using 3.0 equiv of the latter resulted in mono-arylation by allylic substitution and subsequent site-selective second arylation by directed allylic C-H activation giving stereoselectively anti-γ-(aryl,styryl)-β-hydroxy acids. Presence of O2 was crucial for the second arylation via Pd(II) catalysis. Thus, a good synergy of dual catalysis by Pd(0) and Pd(II) was observed. This methodology has been elaborated to synthesize highly substituted tetrahydrofurans including aryl-Hagen's gland lactone analogues via intramolecular iodoetherification.
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Affiliation(s)
- Jothi L Nallasivam
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
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15
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Mistry N, Fletcher SP. Phosphoramidite Ligands Based on Simple 1,2-Diols: Synthesis, Use in Copper-Catalyzed Asymmetric Additions, and Achirotopic Stereogenic Phosphorus Centres. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nisha Mistry
- Department of Chemistry, Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford OX1 3TA U.K
| | - Stephen P. Fletcher
- Department of Chemistry, Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford OX1 3TA U.K
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16
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Nguyen TNT, Thiel NO, Pape F, Teichert JF. Copper(I)-Catalyzed Allylic Substitutions with a Hydride Nucleophile. Org Lett 2016; 18:2455-8. [DOI: 10.1021/acs.orglett.6b00941] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- T. N. Thanh Nguyen
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Niklas O. Thiel
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Felix Pape
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Johannes F. Teichert
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
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18
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Kim J, Park S, Park J, Cho SH. Synthesis of Branched Alkylboronates by Copper-Catalyzed Allylic Substitution Reactions of Allylic Chlorides with 1,1-Diborylalkanes. Angew Chem Int Ed Engl 2015; 55:1498-501. [DOI: 10.1002/anie.201509840] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Junghoon Kim
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Sangwoo Park
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Jinyoung Park
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
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19
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Kim J, Park S, Park J, Cho SH. Synthesis of Branched Alkylboronates by Copper-Catalyzed Allylic Substitution Reactions of Allylic Chlorides with 1,1-Diborylalkanes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509840] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Junghoon Kim
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Sangwoo Park
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Jinyoung Park
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry and Division of Advanced Nuclear Engineering; Pohang University of Science and Technology (POSTECH); Pohang 790-784 Republic of Korea
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20
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Grassi D, Alexakis A. Improvements and Applications of the Transition Metal-Free Asymmetric Allylic Alkylation using Grignard Reagents and Magnesium Alanates. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500495] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Manolikakes SM, Ellwart M, Stathakis CI, Knochel P. Air-Stable Solid Aryl and Heteroaryl Organozinc Pivalates: Syntheses and Applications in Organic Synthesis. Chemistry 2014; 20:12289-97. [DOI: 10.1002/chem.201403015] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Indexed: 11/05/2022]
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22
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Kalkan M. Reactivity of mixed organozinc and mixed organocopper reagents: 11. Nickel-catalyzed atom-economic aryl-allyl coupling of mixed ( n-alkyl)(aryl)zincs. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Melike Kalkan
- Ankara University; Science Faculty; Beşevler Ankara 06100 Turkey
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23
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Langlois JB, Alexakis A. Copper-catalyzed Enantioselective Allylic Substitution. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_12] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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24
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25
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Lölsberg W, Ye S, Schmalz H. Enantioselective Copper‐Catalysed Allylic Alkylation of Cinnamyl Chlorides by Grignard Reagents using Chiral Phosphine‐Phosphite Ligands. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000213] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wibke Lölsberg
- Department für Chemie, Universität zu Köln, Greinstraße 4, 50939 Köln, Germany, Fax: (+49)‐221‐470‐3064; phone: (+49)‐221‐470‐3063
| | - Shute Ye
- Department für Chemie, Universität zu Köln, Greinstraße 4, 50939 Köln, Germany, Fax: (+49)‐221‐470‐3064; phone: (+49)‐221‐470‐3063
| | - Hans‐Günther Schmalz
- Department für Chemie, Universität zu Köln, Greinstraße 4, 50939 Köln, Germany, Fax: (+49)‐221‐470‐3064; phone: (+49)‐221‐470‐3063
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Teichert JF, Feringa BL. Phosphoramidites: privileged ligands in asymmetric catalysis. Angew Chem Int Ed Engl 2010; 49:2486-528. [PMID: 20333685 DOI: 10.1002/anie.200904948] [Citation(s) in RCA: 541] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Asymmetric catalysis with transition-metal complexes is the basis for a vast array of stereoselective transformations and has changed the face of modern synthetic chemistry. Key to this success has been the design of chiral ligands to control the regio-, diastereo-, and enantioselectivity. Phosphoramidites have emerged as a highly versatile and readily accessible class of chiral ligands. Their modular structure enables the formation of ligand libraries and easy fine-tuning for a specific catalytic reaction. Phosphoramidites frequently show exceptional levels of stereocontrol, and their monodentate nature is essential in combinatorial catalysis, where a ligand-mixture approach is used. In this Review, recent developments in asymmetric catalysis with phosphoramidites used as ligands are discussed, with a focus on the formation of carbon-carbon and carbon-heteroatom bonds.
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Affiliation(s)
- Johannes F Teichert
- Stratingh Institute for Chemistry and Center for Systems Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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27
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Fang F, Zhang H, Xie F, Yang G, Zhang W. Highly enantioselective copper-catalyzed allylic alkylation with atropos phosphoramidites bearing a D2-symmetric biphenyl backbone. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Langlois JB, Alexakis A. Copper-Catalyzed Asymmetric Allylic Alkylation of Racemic Cyclic Substrates: Application of Dynamic Kinetic Asymmetric Transformation (DYKAT). Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900790] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Kobayashi K, Ueno M, Naka H, Kondo Y. S(N)2' reaction of organozinc reagents activated by catalytic tBu-P4 base in the presence of LiCl. Chemistry 2009; 15:9805-9. [PMID: 19681067 DOI: 10.1002/chem.200900556] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The tBu-P4 base was found to be an excellent catalyst for the activation of organozinc reagents. The base was used to promote the S(N)2' reaction of alpha,beta-unsaturated esters bearing a gamma-chloride in the reactions with various organozinc reagents in the presence of LiCl. The reactions proceeded in high yield with excellent chemo-and regioselectivity. The role of LiCl appears to be the activation of the gamma-chloride of the alpha,beta-unsaturated esters, which was confirmed by NMR spectroscopic study.
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Affiliation(s)
- Koji Kobayashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki-aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
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30
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Carosi L, Hall DG. Chiral α-substituted allylboronates in a one-pot three-component asymmetric allylic alkylation/carbonyl allylation reaction sequence — Applications to the syntheses of (+)-(3R,5R)-3-hydroxy-5-decanolide and (–)-massoialactone. CAN J CHEM 2009. [DOI: 10.1139/v09-036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The use of different organomagnesium reagents in the copper-catalyzed allylic alkylation of 3-chloropropenyl boronates with chiral phosphoramidite ligands produces the desired α-substituted allylic boronate reagents in high regioselectivity and with modest to high enantioselectivities (up to 96% ee). The size of the incoming alkyl substituent from the organomagnesium reagent was found to impact the yield and selectivity of the allylic alkylation. A one-pot procedure for the preparation of these chiral allylic boronates followed by a Lewis acid (BF3) catalyzed addition to aldehydes delivers the desired allylboration products, homoallylic secondary alcohols, in good yields and very high diastereoselectivity. This three-component reaction methodology was applied to the syntheses of two lactone-containing natural products, (–)-massoialactone and (+)-(3R,5R)-3-hydroxy-5-decanolide. The key step of these syntheses involved the one-pot enantioselective copper-catalyzed allylic alkylation/allylboration reaction with a benzylic aldehyde, and afforded the desired product in 87% yield, 92% ee, and high E/Z selectivity in a ratio of 22:1. Remarkably, the allylic alkylation step of this sequential reaction was performed with a low catalyst loading of 2 mol% on a scale of >15 mmol that can provide multiple grams of the three-component product.
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Affiliation(s)
- Lisa Carosi
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Dennis G. Hall
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
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31
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Polet D, Rathgeb X, Falciola CA, Langlois JB, El Hajjaji S, Alexakis A. Enantioselective iridium-catalyzed allylic arylation. Chemistry 2009; 15:1205-16. [PMID: 19072966 DOI: 10.1002/chem.200801879] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We describe herein the development of the first iridium-catalyzed allylic substitution using arylzinc nucleophiles. High enantioselectivities were obtained from the reactions, which used commercially available Grignard reagents as the starting materials. This methodology was also shown to be compatible with halogen/metal exchange reactions. Its synthetic potential is demonstrated by its application towards the formal synthesis of (+)-sertraline.
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Affiliation(s)
- Damien Polet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Genève 4, Switzerland
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32
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Kiyotsuka Y, Katayama Y, Acharya HP, Hyodo T, Kobayashi Y. New General Method for Regio- and Stereoselective Allylic Substitution with Aryl and Alkenyl Coppers Derived from Grignard Reagents. J Org Chem 2009; 74:1939-51. [DOI: 10.1021/jo802426g] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yohei Kiyotsuka
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Box B52, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Yuji Katayama
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Box B52, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Hukum P. Acharya
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Box B52, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Tomonori Hyodo
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Box B52, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
| | - Yuichi Kobayashi
- Department of Biomolecular Engineering, Tokyo Institute of Technology, Box B52, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8501, Japan
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33
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Onitsuka K. Recent Progress in Asymmetric Allylic Substitutions Catalyzed by Transition Metal Complexes. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.584] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Streitwieser A, Jayasree EG, Hasanayn F, Leung SSH. A Theoretical Study of SN2′ Reactions of Allylic Halides: Role of Ion Pairs. J Org Chem 2008; 73:9426-34. [DOI: 10.1021/jo8020743] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Streitwieser
- Department of Chemistry, University of California−Berkeley, Berkeley, California 94720-1460
| | - E. G. Jayasree
- Department of Chemistry, University of California−Berkeley, Berkeley, California 94720-1460
| | - F. Hasanayn
- Department of Chemistry, University of California−Berkeley, Berkeley, California 94720-1460
| | - S. S.-H. Leung
- Department of Chemistry, University of California−Berkeley, Berkeley, California 94720-1460
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35
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Falciola CA, Alexakis A. High Diversity on Simple Substrates: 1,4-Dihalo-2-butenes and Other Difunctionalized Allylic Halides for Copper-Catalyzed SN2′ Reactions. Chemistry 2008; 14:10615-27. [DOI: 10.1002/chem.200801309] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Harutyunyan SR, den Hartog T, Geurts K, Minnaard AJ, Feringa BL. Catalytic asymmetric conjugate addition and allylic alkylation with Grignard reagents. Chem Rev 2008; 108:2824-52. [PMID: 18698733 DOI: 10.1021/cr068424k] [Citation(s) in RCA: 647] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Syuzanna R Harutyunyan
- Organic Chemistry Laboratories, Stratingh Institute for Chemistry, Faculty of Mathematics and Natural Sciences, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
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37
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Affiliation(s)
- Caroline A. Falciola
- Department of Organic Chemistry, University of Geneva 30 quai E. Ansermet, 1211 Geneva 4 (Switzerland)
| | - Alexandre Alexakis
- Department of Organic Chemistry, University of Geneva 30 quai E. Ansermet, 1211 Geneva 4 (Switzerland)
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38
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Kobayashi K, Ueno M, Naka H, Kondo Y. Activation of organozinc reagents with t-Bu-P4 base for transition metal-free catalytic SN2' reaction. Chem Commun (Camb) 2008:3780-2. [PMID: 18685775 DOI: 10.1039/b807169a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The t-Bu-P4 base was found to be an excellent catalyst for activating organozinc reagents and was used to promote the S(N)2' reaction of alpha,beta-unsaturated esters bearing a gamma-chloride using various organozinc reagents: these reactions proceeded in high yields with excellent chemo-and regioselectivity.
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Affiliation(s)
- Koji Kobayashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
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39
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Mikhel IS, Rüegger H, Butti P, Camponovo F, Huber D, Mezzetti A. A Chiral Phosphoramidite beyond Monodentate Coordination: Secondary π-Interactions Turn a Dangling Aryl into a Two-, Four-, or Six-Electron Donor in d6 and d8 Complexes. Organometallics 2008. [DOI: 10.1021/om800064r] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Igor S. Mikhel
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Heinz Rüegger
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Pietro Butti
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Francesco Camponovo
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Dominik Huber
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
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40
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Mršić N, Lefort L, Boogers JA, Minnaard A, Feringa B, de Vries J. Asymmetric Hydrogenation of Quinolines Catalyzed by Iridium Complexes of Monodentate BINOL-Derived Phosphoramidites. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800007] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Geurts K, Fletcher SP, van Zijl AW, Minnaard AJ, Feringa BL. Copper-catalyzed asymmetric allylic substitution reactions with organozinc and Grignard reagents. PURE APPL CHEM 2008. [DOI: 10.1351/pac200880051025] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Asymmetric allylic alkylations (AAAs) are among the most powerful C-C bond-forming reactions. We present a brief overview of copper-catalyzed AAAs with organometallic reagents and discuss our own contributions to this field. Work with zinc reagents and phosphoramidite ligands provided a framework for later developments which employ Grignard reagents and ferrocenyl ligands. High yields and excellent regioselectivities and enantioselectivities are achieved. The AAAs may be more general than previously envisioned, in terms of using substrates functionalized with heteroatoms at various positions; heteroatom substituents at the γ-position provide densely functionalized building blocks. These h-AAA reactions rely on the design of appropriate substrates containing heteroatoms and have allowed us to demonstrate viable new approaches toward the synthesis of versatile organic building blocks. We illustrate that the chiral secondary allylic alcohols, primary homo-allylic alcohols and amines can readily be obtained in high enantiomeric purity in a catalytic asymmetric fashion by copper-catalyzed AAAs. Furthermore, we show that manipulation of the terminal olefin provides chiral building blocks where the ee of the starting materials is preserved.
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Affiliation(s)
- Koen Geurts
- 1Department of Organic Chemistry and Molecular Inorganic Chemistry,Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Stephen P. Fletcher
- 1Department of Organic Chemistry and Molecular Inorganic Chemistry,Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Anthoni W. van Zijl
- 1Department of Organic Chemistry and Molecular Inorganic Chemistry,Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Adriaan J. Minnaard
- 1Department of Organic Chemistry and Molecular Inorganic Chemistry,Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Ben L. Feringa
- 1Department of Organic Chemistry and Molecular Inorganic Chemistry,Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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42
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Catalytic Asymmetric Synthesis With Novel Monodentate Phosphorus Ligands. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/978-1-4020-6793-8_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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43
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Carosi L, Hall DG. Catalytic Enantioselective Preparation of α-Substituted Allylboronates: One-Pot Addition to Functionalized Aldehydes and a Route to Chiral Allylic Trifluoroborate Reagents. Angew Chem Int Ed Engl 2007; 46:5913-5. [PMID: 17579908 DOI: 10.1002/anie.200700975] [Citation(s) in RCA: 145] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lisa Carosi
- Department of Chemistry, Gunning-Lemieux Chemistry Centre, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
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44
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Carosi L, Hall D. Catalytic Enantioselective Preparation of α-Substituted Allylboronates: One-Pot Addition to Functionalized Aldehydes and a Route to Chiral Allylic Trifluoroborate Reagents. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700975] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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López F, van Zijl AW, Minnaard AJ, Feringa BL. Highly enantioselective Cu-catalysed allylic substitutions with Grignard reagents. Chem Commun (Camb) 2007:409-11. [PMID: 16493816 DOI: 10.1039/b513887f] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalyst system able to perform highly enantioselective Cu-catalysed allylic alkylations with Grignard reagents is described.
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Affiliation(s)
- Fernando López
- Department of Organic Chemistry and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, The Netherlands
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46
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van Zijl AW, López F, Minnaard AJ, Feringa BL. Synthesis of Optically Active Bifunctional Building Blocks through Enantioselective Copper-Catalyzed Allylic Alkylation Using Grignard Reagents. J Org Chem 2007; 72:2558-63. [PMID: 17343420 DOI: 10.1021/jo0625655] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Enantioselective copper-catalyzed allylic alkylations were performed on allylic bromides with a protected hydroxyl or amine functional group using several Grignard reagents and Taniaphos L1 as a ligand. The terminal olefin moiety in the products was transformed into various functional groups without racemization, providing facile access to a variety of versatile bifunctional chiral building blocks.
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Affiliation(s)
- Anthoni W van Zijl
- Department of Organic Chemistry and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747AG, Groningen, The Netherlands
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47
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Geurts K, Fletcher SP, Feringa BL. Copper catalyzed asymmetric synthesis of chiral allylic esters. J Am Chem Soc 2007; 128:15572-3. [PMID: 17147350 DOI: 10.1021/ja065780b] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The complex derived from Taniaphos ligand 4 and CuBr*Me2S catalyzes the asymmetric addition of Grignard reagents to 3-bromopropenyl esters 1 to provide allylic esters 2 in high yields and high chemio-, regio-, and enantioselectivities. The work demonstrates that allylic asymmetric alkylation (AAA) can be done on substrates bearing a heteroatom at the gamma-position. The method is a practical route to chiral, nonracemic allylic alcohols. The use of functionalized substrates 1 or Grignard reagents leads to more complex products 2, which can be further manipulated as demonstrated in conversion to (S)-5-ethyl-2(5H)-furanone 6 and (S)-benzoic acid-cyclopent-2-enyl ester 7.
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Affiliation(s)
- Koen Geurts
- Department of Organic Chemistry and Molecular Inorganic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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48
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Falciola CA, Tissot-Croset K, Alexakis A. β-Disubstituted Allylic Chlorides: Substrates for the Cu-Catalyzed Asymmetric SN2′ Reaction. Angew Chem Int Ed Engl 2006; 45:5995-8. [PMID: 16888831 DOI: 10.1002/anie.200601855] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Caroline A Falciola
- Department of Organic Chemistry, University of Geneva, 30 quai E. Ansermet, 1211 Geneva 4, Switzerland
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49
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Falciola CA, Tissot-Croset K, Alexakis A. β-Disubstituted Allylic Chlorides: Substrates for the Cu-Catalyzed Asymmetric SN2′ Reaction. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601855] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Cotton HK, Norinder J, Bäckvall JE. Screening of ligands in the asymmetric metallocenethiolatocopper(I)-catalyzed allylic substitution with Grignard reagents. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.03.100] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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