1
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Wang Y, Wang B, Ren Z, Guan Z. Copper‐Catalyzed Synthesis of β‐Alkynyl Ketones from Propargylic Alcohols and Enamides. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202300021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Yucheng Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Department of Chemistry & Materials Science Northwest University 710069 Xi'an P. R. China
| | - Bo Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Department of Chemistry & Materials Science Northwest University 710069 Xi'an P. R. China
| | - Zhihui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Department of Chemistry & Materials Science Northwest University 710069 Xi'an P. R. China
| | - Zheng‐Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Department of Chemistry & Materials Science Northwest University 710069 Xi'an P. R. China
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2
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Kumar SV, Guiry PJ. Zinc‐Catalyzed Enantioselective [3+2] Cycloaddition of Azomethine Ylides Using Planar Chiral [2.2]Paracyclophane‐Imidazoline N,O‐ligands. Angew Chem Int Ed Engl 2022; 61:e202205516. [PMID: 35603757 PMCID: PMC9543521 DOI: 10.1002/anie.202205516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Sundaravel Vivek Kumar
- Centre for Synthesis and Chemical Biology (CSCB) School of Chemistry University College Dublin (UCD) Belfield, Dublin 4 Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology (CSCB) School of Chemistry University College Dublin (UCD) Belfield, Dublin 4 Ireland
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3
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Kumar SV, Guiry PJ. Zinc‐Catalyzed Enantioselective [3+2] Cycloaddition of Azomethine Ylides Using Planar Chiral [2.2]Paracyclophane‐Imidazoline N,O‐ligands. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sundaravel Vivek Kumar
- Centre for Synthesis and Chemical Biology (CSCB) School of Chemistry University College Dublin (UCD) Belfield, Dublin 4 Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology (CSCB) School of Chemistry University College Dublin (UCD) Belfield, Dublin 4 Ireland
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4
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Zhang SL, Zhang WW, Li BJ. Ir-Catalyzed Regio- and Enantioselective Hydroalkynylation of Trisubstituted Alkene to Access All-Carbon Quaternary Stereocenters. J Am Chem Soc 2021; 143:9639-9647. [PMID: 34152752 DOI: 10.1021/jacs.1c04493] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stereoselective construction of all-carbon quaternary stereocenters, especially acyclic ones, represents an important challenge in organic synthesis. In particular, homopropargyl amides with a quaternary stereocenter β to a nitrogen atom are valuable synthetic intermediates, which could be transformed to diverse chiral structures through alkyne transformations. However, highly enantioselective synthetic methods for homopropargyl amides with a β quaternary stereocenter are extremely rare. We report here unprecedented substrate-directed, iridium-catalyzed enantioselective hydroalkynylations of trisubstituted alkenes to form an acyclic all-carbon quaternary stereocenter β to a nitrogen atom. The hydroalkynylation of enamide occurred with unconventional selectivity, favoring the more hindered reaction site. Homopropargyl amides with β-stereocenters were prepared in high regio- and enantioselectivities. Combined experimental and computational studies revealed the origin of the regio- and enantioselectivities.
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Affiliation(s)
- Su-Lei Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wen-Wen Zhang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China.,Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
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5
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Zhang W, Zhang S, Li B. Highly Enantioselective Synthesis of Propargyl Amide with Vicinal Stereocenters through Ir‐Catalyzed Hydroalkynylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wen‐Wen Zhang
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Su‐Lei Zhang
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Bi‐Jie Li
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
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6
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Zhang W, Zhang S, Li B. Highly Enantioselective Synthesis of Propargyl Amide with Vicinal Stereocenters through Ir‐Catalyzed Hydroalkynylation. Angew Chem Int Ed Engl 2020; 59:6874-6880. [DOI: 10.1002/anie.201916088] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Wen‐Wen Zhang
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Su‐Lei Zhang
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
| | - Bi‐Jie Li
- Center of Basic Molecular Science (CBMS)Department of ChemistryTsinghua University Beijing 100084 China
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7
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Blay G, Castilla A, Sanz D, Sanz-Marco A, Vila C, Muñoz MC, Pedro JR. Enantioselective zinc-mediated conjugate alkynylation of saccharin-derived 1- aza-butadienes. Chem Commun (Camb) 2020; 56:9461-9464. [DOI: 10.1039/d0cc04221h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diethylzinc and a bis(hydroxyl)malonamide ligand allow the first conjugate alkynylation of α,β-unsaturated imines. Excellent enatioselectivities are obtained with aliphatic alkynes.
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Affiliation(s)
- Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Alvaro Castilla
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - David Sanz
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Carlos Vila
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- E-46022 València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
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8
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Yu Z, Meng L, Lin Z. Hydroalkynylation of Enamides Using Iridium or Rhodium Complexes: DFT Study on the Mechanism and Regioselectivity. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zhaoyuan Yu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
| | - Ling Meng
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
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9
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Soeta T, Hatanaka Y, Ishizaka T, Ukaji Y. Chiral NHC ligands bearing a pyridine moiety in copper-catalyzed addition of diethylzinc to nitroalkenes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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10
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Chen Y, Wang ZX, Li Q, Xu LJ, Li BJ. Iridium-catalysed conjugated alkynylation of α,β-unsaturated amide through alkene isomerization. Org Chem Front 2018. [DOI: 10.1039/c8qo00136g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We have developed an iridium-catalysed conjugated alkynylation of α,β-unsaturated amide.
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Affiliation(s)
- Yun Chen
- Department of Chemistry
- Renmin University of China
- Beijing
- China
- Center of Basic Molecular Science (CBMS)
| | - Zi-Xuan Wang
- Center of Basic Molecular Science (CBMS)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Qian Li
- The Affiliated High School of Peking University
- Beijing
- China
| | - Li-Jin Xu
- Department of Chemistry
- Renmin University of China
- Beijing
- China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
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11
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Tak RK, Kumar M, Nazish M, Menapara TK, Kureshy RI, Khan NUH. Development of recyclable chiral macrocyclic metal complexes for asymmetric aminolysis of epoxides: application for the synthesis of an enantiopure oxazolidine ring. NEW J CHEM 2018. [DOI: 10.1039/c8nj02960a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Macrocyclic Cr(iii)-salen complexes were synthesized for the ring opening reaction of various epoxides with anilines to furnish the corresponding β-amino-α-hydroxyl esters and β-amino alcohols with excellent ee/yield upto 99/95%.
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Affiliation(s)
- Raj Kumar Tak
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | - Manish Kumar
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | - Mohd Nazish
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | - Tushar Kumar Menapara
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| | - Noor-ul H. Khan
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
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12
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Zhi Y, Huang J, Liu N, Lu T, Dou X. Rhodium-Catalyzed Asymmetric Conjugate Alkynylation of β,γ-Unsaturated α-Ketoesters. Org Lett 2017; 19:2378-2381. [DOI: 10.1021/acs.orglett.7b00909] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yanle Zhi
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jianhang Huang
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Na Liu
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Tao Lu
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Xiaowei Dou
- Department
of Organic Chemistry and ‡State Key Laboratory of Natural
Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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13
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Trost BM, Masters JT, Taft BR, Lumb JP. Asymmetric synthesis of chiral β-alkynyl carbonyl and sulfonyl derivatives via sequential palladium and copper catalysis. Chem Sci 2016; 7:6217-6231. [PMID: 27746892 PMCID: PMC5044515 DOI: 10.1039/c6sc01724j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/09/2016] [Indexed: 11/21/2022] Open
Abstract
We present a full account detailing the development of a sequential catalysis strategy for the synthesis of chiral β-alkynyl carbonyl and sulfonyl derivatives. A palladium-catalyzed cross coupling of terminal alkyne donors with acetylenic ester, ketone, and sulfone acceptors generates stereodefined enynes in high yield. These compounds are engaged in an unprecedented, regio- and enantioselective copper-catalyzed conjugate reduction. The process exhibits a high functional group tolerance, and this enables the synthesis of a broad range of chiral products from simple, readily available alkyne precursors. The utility of the method is demonstrated through the elaboration of the chiral β-alkynyl products into a variety of different molecular scaffolds. Its value in complex molecule synthesis is further validated through a concise, enantioselective synthesis of AMG 837, a potent GPR40 receptor agonist.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
| | - James T Masters
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
| | - Benjamin R Taft
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
| | - Jean-Philip Lumb
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
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14
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Bai XY, Wang ZX, Li BJ. Iridium-Catalyzed Enantioselective Hydroalkynylation of Enamides for the Synthesis of Homopropargyl Amides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601792] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xiao-Yan Bai
- Center of Basic Molecular Science (CBMS), Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Zi-Xuan Wang
- Center of Basic Molecular Science (CBMS), Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry; Tsinghua University; Beijing 100084 China
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15
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Bai XY, Wang ZX, Li BJ. Iridium-Catalyzed Enantioselective Hydroalkynylation of Enamides for the Synthesis of Homopropargyl Amides. Angew Chem Int Ed Engl 2016; 55:9007-11. [PMID: 27111577 DOI: 10.1002/anie.201601792] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Indexed: 02/04/2023]
Abstract
Reported is an iridium-catalyzed asymmetric hydroalkynylation of enamides with terminal alkynes. The reaction occurs regioselectively at the β-position of an enamide to produce homopropargyl amides. Good to high enantioselectivity was observed with an iridium complex ligated by a chiral bis(phosphine) ligand. This method provides a straightforward route to synthesize chiral homopropargyl amides with a stereocenter β to the amide.
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Affiliation(s)
- Xiao-Yan Bai
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zi-Xuan Wang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China.
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16
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Dou X, Huang Y, Hayashi T. Asymmetric Conjugate Alkynylation of Cyclic α,β-Unsaturated Carbonyl Compounds with a Chiral Diene Rhodium Catalyst. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509778] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaowei Dou
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yinhua Huang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Tamio Hayashi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- Institute of Materials Research and Engineering, A*STAR; 2 Fusionopolis Way Singapore 138634 Singapore
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17
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Dou X, Huang Y, Hayashi T. Asymmetric Conjugate Alkynylation of Cyclic α,β-Unsaturated Carbonyl Compounds with a Chiral Diene Rhodium Catalyst. Angew Chem Int Ed Engl 2015; 55:1133-7. [DOI: 10.1002/anie.201509778] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaowei Dou
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yinhua Huang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Tamio Hayashi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- Institute of Materials Research and Engineering, A*STAR; 2 Fusionopolis Way Singapore 138634 Singapore
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18
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Affiliation(s)
- Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto Japan
| | - Kiyoshi Tomioka
- Department of Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Doshisha Women's College of Liberal Arts; Kyoto Japan
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19
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Capreti NMR, Jurberg ID. Michael Addition of Soft Carbon Nucleophiles to Alkylidene Isoxazol-5-ones: A Divergent Entry to β-Branched Carbonyl Compounds. Org Lett 2015; 17:2490-3. [DOI: 10.1021/acs.orglett.5b01004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naylil M. R. Capreti
- Institute
of Chemistry, State University of Campinas, 13083-970, C.P. 6154, Campinas, SP, Brazil
| | - Igor D. Jurberg
- Institute
of Chemistry, State University of Campinas, 13083-970, C.P. 6154, Campinas, SP, Brazil
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20
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Ahmar S, Fillion E. Expedient Synthesis of Complex γ-Butyrolactones from 5-(1-Arylalkylidene) Meldrum’s Acids via Sequential Conjugate Alkynylation/Ag(I)-Catalyzed Lactonization. Org Lett 2014; 16:5748-51. [DOI: 10.1021/ol502811j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Siawash Ahmar
- Department
of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Eric Fillion
- Department
of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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21
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Blay G, Cardona L, Pedro JR, Sanz-Marco A. Enantioselective Zinc-Mediated Conjugate Addition of Terminal Alkynes to Enones. Chemistry 2012; 18:12966-9. [PMID: 22936365 DOI: 10.1002/chem.201201765] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, C/Dr. Moliner 50, E-46100 Burjassot (València), Spain.
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22
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23
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Trost BM, Taft BR, Masters JT, Lumb JP. A new strategy for the synthesis of chiral β-alkynyl esters via sequential palladium and copper catalysis. J Am Chem Soc 2011; 133:8502-5. [PMID: 21557627 DOI: 10.1021/ja203171x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A new strategy for the synthesis of chiral β-alkynyl esters which relies on sequential Pd and Cu catalysis is reported. Terminal alkynes bearing aryl, alkyl, and silyl groups can be employed without prior activation yielding a wide range of important chiral building blocks. The reaction sequence utilizes a robust Pd(II)-catalyzed hydroalkynylation of ynoates with terminal alkynes providing geometrically pure ynenoates which are readily reduced by CuH. In contrast to previous reports, where additions to ynenoates proceed with marginal preference for the 1,6-pathway, this conjugate reduction occurs with high 1,4-selectivity yielding β-alkynyl esters with excellent levels of enantioselectivity. Importantly, the method tolerates a wide range of functionality, including allylic carbonates and carbamates, and thus allows for rapid elaboration of the β-alkynyl esters into a variety of chiral, substituted heterocycles.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
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24
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Dabrowski JA, Gao F, Hoveyda AH. Enantioselective synthesis of alkyne-substituted quaternary carbon stereogenic centers through NHC-Cu-catalyzed allylic substitution reactions with (i-Bu)2(alkynyl)aluminum reagents. J Am Chem Soc 2011; 133:4778-81. [PMID: 21384918 DOI: 10.1021/ja2010829] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A catalytic enantioselective method for the formation of alkyne-substituted all-carbon quaternary stereogenic centers is reported. Additions of alkynylaluminums to alkyl-, aryl-, carboxylic ester-, or silyl-substituted allylic phosphates are promoted by 1.0-5.0 mol % loadings of NHC-Cu complexes derived from air-stable and commercially available CuCl(2)·2H(2)O. The requisite Al-based reagents are prepared through treatment of the corresponding aryl-, heteroaryl-, alkyl-, or alkenyl-substituted terminal alkynes with diisobutylaluminum hydride in the presence of 5.0 mol % Et(3)N at ambient temperature. The desired 1,4-enynes are obtained in up to 98% yield and >99:1 enantiomeric ratio. Selected Au-catalyzed cyclizations involving the alkyne unit of the enantiomerically enriched products are presented as a demonstration of the method's utility in chemical synthesis.
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Affiliation(s)
- Jennifer A Dabrowski
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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25
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Li XJ, Peng FZ, Li X, Wu WT, Sun ZW, Li YM, Zhang SX, Shao ZH. Enantioselective and Regioselective Organocatalytic Conjugate Addition of Malonates to Nitroenynes. Chem Asian J 2010; 6:220-5. [DOI: 10.1002/asia.201000561] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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1, 4-Addition of Terminal Alkynes to Conjugated Enones in Water Using Green Catalyst Bis[(l)prolinato-N,O]Zn—An Environmentally Benign Protocol. Catal Letters 2010. [DOI: 10.1007/s10562-010-0451-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Woo JC, Cui S, Walker SD, Faul MM. Asymmetric syntheses of a GPR40 receptor agonist via diastereoselective and enantioselective conjugate alkynylation. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Tissot M, Müller D, Belot S, Alexakis A. Enantioselective and Regiodivergent Copper-Catalyzed Conjugate Addition of Trialkylaluminium Reagents to Extended Nitro-Michael Acceptors. Org Lett 2010; 12:2770-3. [DOI: 10.1021/ol100849j] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthieu Tissot
- Université de Genève, Département de chimie organique, 30 Quai Ernest Ansermet, 1211 Genève 4, Switzerland
| | - Daniel Müller
- Université de Genève, Département de chimie organique, 30 Quai Ernest Ansermet, 1211 Genève 4, Switzerland
| | - Sébastien Belot
- Université de Genève, Département de chimie organique, 30 Quai Ernest Ansermet, 1211 Genève 4, Switzerland
| | - Alexandre Alexakis
- Université de Genève, Département de chimie organique, 30 Quai Ernest Ansermet, 1211 Genève 4, Switzerland
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29
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Nishimura T, Sawano T, Tokuji S, Hayashi T. Rhodium-catalyzed asymmetric conjugate alkynylation of nitroalkenes. Chem Commun (Camb) 2010; 46:6837-9. [DOI: 10.1039/c0cc02181d] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Cui S, Walker SD, Woo JCS, Borths CJ, Mukherjee H, Chen MJ, Faul MM. Practical Asymmetric Conjugate Alkynylation of Meldrum’s Acid-Derived Acceptors: Access to Chiral β-Alkynyl Acids. J Am Chem Soc 2009; 132:436-7. [DOI: 10.1021/ja909105s] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sheng Cui
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Shawn D. Walker
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Jacqueline C. S. Woo
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Christopher J. Borths
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Herschel Mukherjee
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Maosheng J. Chen
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
| | - Margaret M. Faul
- Department of Chemical Process Research and Development, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320
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31
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Nishimura T, Sawano T, Hayashi T. Asymmetric Synthesis of β-Alkynyl Aldehydes by Rhodium-Catalyzed Conjugate Alkynylation. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904486] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Nishimura T, Sawano T, Hayashi T. Asymmetric Synthesis of β-Alkynyl Aldehydes by Rhodium-Catalyzed Conjugate Alkynylation. Angew Chem Int Ed Engl 2009; 48:8057-9. [DOI: 10.1002/anie.200904486] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Fillion E, Zorzitto AK. Enantioselective Rhodium-Catalyzed Conjugate Alkynylation of 5-Benzylidene Meldrum’s Acids with TMS-acetylene. J Am Chem Soc 2009; 131:14608-9. [DOI: 10.1021/ja905336p] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric Fillion
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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34
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Paixão M, Holub N, Vila C, Nielsen M, Jørgensen K. Trends in Organocatalytic Conjugate Addition to Enones: An Efficient Approach to Optically Active Alkynyl, Alkenyl, and Ketone Products. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903790] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Paixão M, Holub N, Vila C, Nielsen M, Jørgensen K. Trends in Organocatalytic Conjugate Addition to Enones: An Efficient Approach to Optically Active Alkynyl, Alkenyl, and Ketone Products. Angew Chem Int Ed Engl 2009; 48:7338-42. [DOI: 10.1002/anie.200903790] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Nishimura T, Tokuji S, Sawano T, Hayashi T. Rhodium-Catalyzed Asymmetric Conjugate Alkynylation of Enones with Alkynylsilanols. Org Lett 2009; 11:3222-5. [DOI: 10.1021/ol901119d] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takahiro Nishimura
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Sumito Tokuji
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takahiro Sawano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tamio Hayashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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37
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Highly Efficient Recyclable CoIII-salen Complexes in the Catalyzed Asymmetric Aminolytic Kinetic Resolution of Aryloxy/Terminal Epoxides for the Simultaneous Production ofN-Protected 1,2-Amino Alcohols and the Corresponding Epoxides in High Optical Purity. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900032] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Abstract
Over the past decade, large strides have been achieved in the invention of methods for the direct enantioselective addition of alkynes and metal alkynylide nucleophiles into prochiral aldehydes, ketones, and imines. This review highlights and compares the available methods for these transformations.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Andrew H Weiss
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford St., Cambridge, MA 02138
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39
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Nishimura T, Guo XX, Hayashi T. Rhodium-Catalyzed Asymmetric Addition of Terminal Alkynes to Diarylphosphinylallenes. Chem Asian J 2008; 3:1505-10. [DOI: 10.1002/asia.200800042] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Fujimori S, Knöpfel TF, Zarotti P, Ichikawa T, Boyall D, Carreira EM. Stereoselective Conjugate Addition Reactions Using In Situ Metallated Terminal Alkynes and the Development of Novel Chiral P,N-Ligands. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.1635] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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Firouzabadi H, Iranpoor N, Khoshnood A. Aluminum tris (dodecyl sulfate) trihydrate Al(DS)3·3H2O as an efficient Lewis acid–surfactant-combined catalyst for organic reactions in water. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.04.035] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Fessard TC, Motoyoshi H, Carreira EM. Pd-Catalyzed Cleavage of Benzylic Nitro Bonds: New Opportunities for Asymmetric Synthesis. Angew Chem Int Ed Engl 2007; 46:2078-81. [PMID: 17300117 DOI: 10.1002/anie.200604263] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas C Fessard
- Laboratorium für Organische Chemie, ETH Hönggerberg, 8093 Zürich, Switzerland
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43
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Fessard T, Motoyoshi H, Carreira E. Pd-Catalyzed Cleavage of Benzylic Nitro Bonds: New Opportunities for Asymmetric Synthesis. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604263] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Isleyen A, Dogan Ö. Application of ferrocenyl substituted aziridinylmethanols (FAM) as chiral ligands in enantioselective conjugate addition of diethylzinc to enones. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.02.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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45
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Kobayashi S, Ogawa C, Wang N, Boudou M, Azoulay S, Manabe K. Scandium-Catalyzed Ring-Opening Desymmetrization of meso-Epoxides. HETEROCYCLES 2007. [DOI: 10.3987/com-06-s(k)53] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Abstract
Lewis acid catalysis has attracted much attention in organic synthesis because of unique reactivity and selectivity attained under mild conditions. Although various kinds of Lewis acids have been developed and applied in industry, these Lewis acids must be generally used under strictly anhydrous conditions. The presence of even a small amount of water handles the reactions owing to preferential reactions of the Lewis acids with water rather than the substrates. In contrast, rare earth and other metal complexes have been found to be water-compatible. Several catalytic asymmetric reactions in aqueous media, including hydroxymethylation of silicon enolates with an aqueous solution of formaldehyde in the presence of Sc(OTf)3-chiral bipyridine ligand or Bi(OTf)3-chiral bipyridine ligand, Sc- or Bi-catalyzed asymmetric meso-epoxide ring-opening reactions with amines, and asymmetric Mannich-type reactions of silicon enolates with N-acylhydrazones in the presence of a chiral Zn catalyst have been developed. Water plays key roles in these asymmetric reactions.
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47
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Chen Q, Soeta T, Kuriyama M, Yamada KI, Tomioka K. Efficient Catalytic Asymmetric Synthesis oftrans-5-Aryl-2-substituted Cyclohexanones by Rhodium-Catalyzed Conjugate Arylation of Racemic 6-Substituted Cyclohexenones. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200600263] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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