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1
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Iwakura M, Ikeue T, Nakata K. Design and Synthesis of Axial‐Chirality‐Containing Guanidine Catalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202202511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Manaya Iwakura
- Department of Chemistry Graduate School of Natural Science and Technology Shimane University 1060 Nishikawatsu Matsue Shimane 690-8504 Japan
| | - Takahisa Ikeue
- Department of Chemistry Graduate School of Natural Science and Technology Shimane University 1060 Nishikawatsu Matsue Shimane 690-8504 Japan
| | - Kenya Nakata
- Department of Chemistry Graduate School of Natural Science and Technology Shimane University 1060 Nishikawatsu Matsue Shimane 690-8504 Japan
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2
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Hara N, Fujisawa S, Fujita M, Miyazawa M, Ochiai K, Katsuda S, Fujimoto T. Kinetic resolution of sterically hindered secondary alcohols catalyzed by aminophosphinite organocatalyst. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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3
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Jin JH, Li XY, Luo X, Fossey JS, Deng WP. Asymmetric Synthesis of cis-3,4-Dihydrocoumarins via [4 + 2] Cycloadditions Catalyzed by Amidine Derivatives. J Org Chem 2017; 82:5424-5432. [PMID: 28441490 DOI: 10.1021/acs.joc.7b00367] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly efficient chiral amidine derivative-catalyzed tandem Michael addition/lactonization of carboxylic acids and o-quinone methides (o-QMs) has been developed that enables the asymmetric synthesis of cis-3,4-dihydrocoumarins bearing contiguous tertiary stereogenic centers in high yields with excellent stereoselectivities.
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Affiliation(s)
- Jing-Hai Jin
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - Xiang-Yu Li
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
| | - John S Fossey
- School of Chemistry, University of Birmingham , Edgbaston, Birmingham, West Midlands B15 2TT, United Kingdom
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, China
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4
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Jin J, Xu Q, Deng W. DMAP-Catalyzed [4 + 2] Cycloaddition of α
,β
-Unsaturated Carboxylic Acids with Ketones for Synthesis of α
,β
-Unsaturated δ
-Lactones. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jinghai Jin
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Qinchang Xu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Weiping Deng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
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5
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Brittain WDG, Buckley BR, Fossey JS. Kinetic resolution of alkyne-substituted quaternary oxindoles via copper catalysed azide-alkyne cycloadditions. Chem Commun (Camb) 2016; 51:17217-20. [PMID: 26311134 DOI: 10.1039/c5cc04886a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synthesis and kinetic resolution of quaternary oxindoles through copper catalysed azide-alkyne cycloadditions is presented. Selectivity factors (s) up to 22.1 ± 0.5 are reported. Enantioenriched alkynes and triazoles were obtained in ≥80% enantiomeric excess (e.e.).
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Affiliation(s)
- William D G Brittain
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
| | - Benjamin R Buckley
- Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.
| | - John S Fossey
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands B15 2TT, UK.
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6
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Yang ZP, Wu QF, Shao W, You SL. Iridium-Catalyzed Intramolecular Asymmetric Allylic Dearomatization Reaction of Pyridines, Pyrazines, Quinolines, and Isoquinolines. J Am Chem Soc 2015; 137:15899-906. [PMID: 26605697 DOI: 10.1021/jacs.5b10440] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The first Ir-catalyzed intramolecular asymmetric allylic dearomatization reaction of pyridines, pyrazines, quinolines, and isoquinolines has been developed. Enabled by in situ formed chiral Ir-catalyst, the dearomatized products were isolated in high levels of yield (up to 99% yield) and enantioselectivity (up to 99% ee). It is worth noting that the Me-THQphos ligand is much more efficient than other tested ligands for the dearomatization of pyrazines and certain quinolines. Mechanistic studies of the dearomatization reaction were carried out, and the results suggest the feasibility of an alternative process which features the formation of a quinolinium as the key intermediate. The mechanistic findings render this reaction a yet unknown type in the chemistry of Reissert-type reactions. In addition, the utility of this method was showcased by a large-scale reaction and formal synthesis of (+)-gephyrotoxin.
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Affiliation(s)
- Ze-Peng Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Qing-Feng Wu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Wen Shao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
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7
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Gurubrahamam R, Cheng YS, Huang WY, Chen K. Recent Advances in Organocatalytic Kinetic Resolution for the Synthesis of Functionalized Products. ChemCatChem 2015. [DOI: 10.1002/cctc.201500455] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ramani Gurubrahamam
- Department of Chemistry; National Taiwan Normal University; Taipei Taiwan 116 R.O. China
| | - You-Song Cheng
- Department of Chemistry; National Taiwan Normal University; Taipei Taiwan 116 R.O. China
| | - Wan-Yun Huang
- Department of Chemistry; National Taiwan Normal University; Taipei Taiwan 116 R.O. China
| | - Kwunmin Chen
- Department of Chemistry; National Taiwan Normal University; Taipei Taiwan 116 R.O. China
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8
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Jiang SS, Xu QC, Zhu MY, Yu X, Deng WP. Kinetic Resolution of α-Methylene-β-hydroxy Esters Catalyzed by Acyl Transfer Catalyst An-PIQ. J Org Chem 2015; 80:3159-69. [DOI: 10.1021/acs.joc.5b00073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shan-Shan Jiang
- Shanghai Key Laboratory of
New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Qin-Chang Xu
- Shanghai Key Laboratory of
New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Ming-Yu Zhu
- Shanghai Key Laboratory of
New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xingxin Yu
- Shanghai Key Laboratory of
New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Wei-Ping Deng
- Shanghai Key Laboratory of
New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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9
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Jiang SS, Gu BQ, Zhu MY, Yu X, Deng WP. Nonenzymatic kinetic resolution of α-aryl substituted allylic alcohols catalyzed by acyl transfer catalyst Np-PIQ. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Fossey JS, Brittain WDG. The CASE 2014 symposium: Catalysis and sensing for our environment, Xiamen 7th–9th November 2014. Org Chem Front 2015. [DOI: 10.1039/c4qo90045f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The CASE 2014 symposium: catalysis and sensing for our environment, Xiamen 7th–9th November 2014
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