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Du X, Xiao Y, Yang Y, Duan Y, Li F, Hu Q, Chung LW, Chen G, Zhang X. Enantioselective Hydrogenation of Tetrasubstituted α,β‐Unsaturated Carboxylic Acids Enabled by Cobalt(II) Catalysis: Scope and Mechanistic Insights. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016705] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiaoyong Du
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Ye Xiao
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Yuhong Yang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Ya‐Nan Duan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Fangfang Li
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Qi Hu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Lung Wa Chung
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Gen‐Qiang Chen
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
- Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology Shenzhen 518000 China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
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Du X, Xiao Y, Yang Y, Duan Y, Li F, Hu Q, Chung LW, Chen G, Zhang X. Enantioselective Hydrogenation of Tetrasubstituted α,β‐Unsaturated Carboxylic Acids Enabled by Cobalt(II) Catalysis: Scope and Mechanistic Insights. Angew Chem Int Ed Engl 2021; 60:11384-11390. [DOI: 10.1002/anie.202016705] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Xiaoyong Du
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Ye Xiao
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Yuhong Yang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Ya‐Nan Duan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Fangfang Li
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Qi Hu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Lung Wa Chung
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
| | - Gen‐Qiang Chen
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
- Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology Shenzhen 518000 China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518000 China
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Reed JH, Cramer N. 1,3,2‐Diazaphospholenes Catalyze the Conjugate Reduction of Substituted Acrylic Acids. ChemCatChem 2020. [DOI: 10.1002/cctc.202000662] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- John H. Reed
- Laboratory of Asymmetric Catalysis and Synthesis EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne (Switzerland)
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis and Synthesis EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne (Switzerland)
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Shaaban S, Jolit A, Petkova D, Maulide N. A family of low molecular-weight, organic catalysts for reductive C-C bond formation. Chem Commun (Camb) 2015; 51:13902-5. [PMID: 26239300 DOI: 10.1039/c5cc03580e] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrazines form a new family of low molecular-weight reducing agents for diazonium salts. Using only small amounts of hydrazine catalyst, the coupling of diazonium salts to a variety of reactive partners has been achieved, without the requirement for either metal adjuvants or irradiation with visible or ultraviolet light. The generality of the concept proposed herein as well as its advantages in the preparative scale is outlined and discussed.
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Affiliation(s)
- Saad Shaaban
- University of Vienna, Institute of Organic Chemistry, Währinger Strasse 38, 1090 Vienna, Austria.
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Hering T, Hari DP, König B. Visible-light-mediated α-arylation of enol acetates using aryl diazonium salts. J Org Chem 2012; 77:10347-52. [PMID: 23101908 DOI: 10.1021/jo301984p] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Visible light mediates efficiently the α-arylation of enol acetates by aryl diazonium salts under mild conditions using [Ru(bpy)(3)]Cl(2) as a photoredox catalyst. The broad scope of the reaction toward various diazonium salts and enol acetates was explored. The application of this reaction in the concise synthesis of 2-substituted indoles was demonstrated.
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Affiliation(s)
- Thea Hering
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, D-93053 Regensburg, Germany
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Zhu SF, Yu YB, Li S, Wang LX, Zhou QL. Enantioselective Hydrogenation of α-Substituted Acrylic Acids Catalyzed by Iridium Complexes with Chiral Spiro Aminophosphine Ligands. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204363] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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7
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Zhu SF, Yu YB, Li S, Wang LX, Zhou QL. Enantioselective Hydrogenation of α-Substituted Acrylic Acids Catalyzed by Iridium Complexes with Chiral Spiro Aminophosphine Ligands. Angew Chem Int Ed Engl 2012; 51:8872-5. [DOI: 10.1002/anie.201204363] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Indexed: 11/11/2022]
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Johansson CCC, Colacot TJ. Metal-catalyzed alpha-arylation of carbonyl and related molecules: novel trends in C-C bond formation by C-H bond functionalization. Angew Chem Int Ed Engl 2010; 49:676-707. [PMID: 20058282 DOI: 10.1002/anie.200903424] [Citation(s) in RCA: 597] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Alpha-arylated carbonyl compounds are commonly occurring motifs in biologically interesting molecules and are therefore of high interest to the pharmaceutical industry. Conventional procedures for their synthesis often result in complications in scale-up, such as the use of stoichiometric amounts of toxic reagents and harsh reaction conditions. Over the last decade, significant efforts have been directed towards the development of metal-catalyzed alpha-arylations of carbonyl compounds as an alternative synthetic approach that operates under milder conditions. This Review summarizes the developments in this area to date, with a focus on how the substrate scope has been expanded through selection of the most appropriate synthetic method, such as the careful choice of ligands, precatalysts, bases, and reaction conditions.
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Johansson C, Colacot T. Metallkatalysierte α-Arylierungen von Carbonylen und verwandten Molekülen: aktuelle Trends bei der C-C-Kupplung über C-H-Funktionalisierung. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200903424] [Citation(s) in RCA: 226] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Martín R, Buchwald SL. A general method for the direct alpha-arylation of aldehydes with aryl bromides and chlorides. Angew Chem Int Ed Engl 2007; 46:7236-9. [PMID: 17722128 DOI: 10.1002/anie.200703009] [Citation(s) in RCA: 112] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rubén Martín
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Martín R, Buchwald S. A General Method for the Direct α-Arylation of Aldehydes with Aryl Bromides and Chlorides. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200703009] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Goj O, Kotila S, Haufe G. Convenient routes to 2-aryl-2-fluoropropionic acids: Synthesis of monofluorinated analogues of (±)-ibuprofen, (±)-naproxen and related compounds. Tetrahedron 1996. [DOI: 10.1016/0040-4020(96)00758-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Layh N, Knackmuss HJ, Stolz A. Enantioselective hydrolysis of ketoprofen amide by Rhodococcus sp. C3II and Rhodococcus erythropolis MP 50. Biotechnol Lett 1995. [DOI: 10.1007/bf00127986] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zandomeneghi M. Circular dichroism of ketoprofen complexed to serum albumins: conformational selection by the protein: a novel optical purity determination technique. Chirality 1995; 7:446-51. [PMID: 7577351 DOI: 10.1002/chir.530070610] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Complexation of 2-(3'-benzoylphenyl)propionic acid (ketoprofen), 1, to bovine serum albumin (BSA) results in an intense negative circular dichroism in the ketonic n-->pi* band of the benzoylphenyl moiety. This high CD contrasts with the weak CD of 1-enantiomers dissolved in common solvents. Furthermore, a number of chiral and achiral molecules containing the benzophenone moiety are easily complexed to BSA: all these complexes show an intense CD at the same transition. To account for the observed CD intensities of the above molecules, it appears that BSA complexation markedly shifts the equilibrium between strongly asymmetric, antipodic conformers. Dissymmetry of these conformers is connected to the instability of a structure with phenyl rings coplanar to the carbonyl chromophore, as also indicated by molecular mechanics calculations. The magnification of the Cotton effects of the 1-antipodes, due to the protein, can be used to measure the optical purity of 1-samples with excellent precision. In contrast with BSA, human SA is unable to recognize the chirality of 1-antipodes; oleic acid cocomplexation modifies this fact as well as other features of the binding.
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Affiliation(s)
- M Zandomeneghi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Italy
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Layh N, Stolz A, Böhme J, Effenberger F, Knackmuss HJ. Enantioselective hydrolysis of racemic naproxen nitrile and naproxen amide to S-naproxen by new bacterial isolates. J Biotechnol 1994; 33:175-82. [PMID: 7764731 DOI: 10.1016/0168-1656(94)90109-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Bacteria were enriched from soil samples with succinate as a carbon source and racemic naproxen nitrile [2-(6-methoxy-2-naphthyl)propionitrile] as sole source of nitrogen. Since naproxen nitrile was only poorly soluble in water media amended with different water-immiscible organic phases were used for the enrichments. With pristane (2,6,10,14-tetramethylpentadecane) as the organic phase two bacterial strains were isolated (strain C3II and strain MP50) which were identified as rhodococci. Cells of both strains converted naproxen nitrile via naproxen amide to naproxen. From racemic naproxen nitrile Rhodococcus sp. C3II formed S-naproxen amide and subsequently S-naproxen. Racemic naproxen amide was hydrolysed to S-naproxen. Rhodococcus sp. MP50 converted racemic naproxen nitrile predominantly to R-naproxen amide and racemic naproxen amide to S-naproxen. With both strains racemic naproxen amide was converted to S-naproxen with an enantiomeric excess > 99% at a conversion rate up to 80% of the theoretical value. In strain C3II the enzymes which hydrolysed naproxen nitrile and naproxen amide were present only at a low constitutive level. In contrast, in Rhodococcus sp. MP50 these activities were induced when grown in the presence of various nitriles.
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Affiliation(s)
- N Layh
- Institut für Mikrobiologie der Universität Stuttgart, Germany
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Hypervalent iodine oxidation of aryl methyl ketones: A convenient route to methyl α-methoxyarylacetatos. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)89024-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Öhler E, Kang HS, Zbiral E. (2,3-Epoxy-4-oxoalkyl)phosphonsäure-ester als Synthone für Thiazole. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/cber.19881210322] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Castaldi G, Cavicchioli S, Giordano C, Uggeri F. Asymmetrische Bromierung enantiomerenreiner Acetale von Alkylarylketonen. Angew Chem Int Ed Engl 1986. [DOI: 10.1002/ange.19860980321] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Castaldi G, Cavicchioli S, Giordano C, Uggeri F. Asymmetric Bromination of Enantiomerically Pure Acetals of Alkyl Aryl Ketones. ACTA ACUST UNITED AC 1986. [DOI: 10.1002/anie.198602591] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Giordano C, Castaldi G, Uggeri F. Synthesis of Anti-Inflammatory ?-Arylalkanoic Acids by 1,2-Aryl Shift. New Synthetic Methods (42). ACTA ACUST UNITED AC 1984. [DOI: 10.1002/anie.198404131] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Giordano C, Castaldi G, Uggeri F. Synthese von entzündungshemmenden α-Arylalkansäuren durch 1,2-Arylverschiebung. Angew Chem Int Ed Engl 1984. [DOI: 10.1002/ange.19840960606] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Dobeneck HV, Brunner E, Bunke H, Metzner G, Schmidt R, Weil E, Sonnenbichler J. Pyrrolinone, IV Pyrrolin-2-one mit β-ständigen elektronenziehenden Substituenten. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/jlac.198119810309] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kreutzberger A, Stratmann JÖR. Entzündungshemmende wirkstoffe. VIII 5- und 6-chlorierte 1-aroylbenzotriazole. J Heterocycl Chem 1980. [DOI: 10.1002/jhet.5570170729] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kreutzberger A, Stratmann J. Entzündungshemmende Wirkstoffe, 5. Mitt. Kernmonosubstituierte Benzotriazole. Arch Pharm (Weinheim) 1979. [DOI: 10.1002/ardp.19793121103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ceserani R, Ferrari M, Goldaniga G, Moro E, Buttinoni A. Role of protein binding and pharmacokinetics in the lack of correlation between in vitro inhibition of PG-synthetase and in vivo antiinflammatory activity of a homologous series of nonsteroidal antiinflammatory compounds. Life Sci 1977; 21:223-9. [PMID: 407406 DOI: 10.1016/0024-3205(77)90305-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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