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Shaaban S, Davies C, Waldmann H. Applications of Chiral Cyclopentadienyl (Cp
x
) Metal Complexes in Asymmetric Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000752] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saad Shaaban
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
| | - Caitlin Davies
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemical Biology Otto‐Hahn‐Straße 4a 44227 Dortmund Germany
| | - Herbert Waldmann
- Max‐Planck‐Institute of Molecular Physiology Department of Chemical Biology Otto‐Hahn‐Straße 11 44227 Dortmund Germany
- Technical University Dortmund Faculty of Chemical Biology Otto‐Hahn‐Straße 4a 44227 Dortmund Germany
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Junk L, Kazmaier U. The Allylic Alkylation of Ketone Enolates. ChemistryOpen 2020; 9:929-952. [PMID: 32953384 PMCID: PMC7482671 DOI: 10.1002/open.202000175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/03/2020] [Indexed: 01/14/2023] Open
Abstract
The palladium-catalyzed allylic alkylation of non-stabilized ketone enolates was thought for a long time to be not as efficient as the analogous reactions of stabilized enolates, e. g. of malonates and β-ketoesters. The field has experienced a rapid development during the last two decades, with a range of new, highly efficient protocols evolved. In this review, the early developments as well as current methods and applications of palladium-catalyzed ketone enolate allylations will be discussed.
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Affiliation(s)
- Lukas Junk
- Organic Chemistry ISaarland UniversityCampus C4.266123SaarbrückenGermany
| | - Uli Kazmaier
- Organic Chemistry ISaarland UniversityCampus C4.266123SaarbrückenGermany
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Kanbayashi N, Yamazawa A, Takii K, Okamura TA, Onitsuka K. Planar-Chiral Cyclopentadienyl-Ruthenium-Catalyzed Regio- and Enantioselective Asymmetric Allylic Alkylation of Silyl Enolates under Unusually Mild Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500970] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Egger L, Tortoreto C, Achard T, Monge D, Ros A, Fernández R, Lassaletta JM, Lacour J. Regio- and Enantioselective Allylation of PhenolsviaDecarboxylative Allylic Etherification of Allyl Aryl Carbonates Catalyzed by (Cyclopentadienyl)ruthenium(II) Complexes and Pyridine-Hydrazone Ligands. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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5
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Yang ZP, Zhuo CX, You SL. Ruthenium-Catalyzed Intramolecular Allylic Dearomatization/Migration Reaction of Indoles and Pyrroles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301083] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Li Z, Zhang S, Wu S, Shen X, Zou L, Wang F, Li X, Peng F, Zhang H, Shao Z. Enantioselective Palladium-Catalyzed Decarboxylative Allylation of Carbazolones: Total Synthesis of (−)-Aspidospermidine and (+)-Kopsihainanine A. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209878] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Li Z, Zhang S, Wu S, Shen X, Zou L, Wang F, Li X, Peng F, Zhang H, Shao Z. Enantioselective Palladium-Catalyzed Decarboxylative Allylation of Carbazolones: Total Synthesis of (−)-Aspidospermidine and (+)-Kopsihainanine A. Angew Chem Int Ed Engl 2013; 52:4117-21. [DOI: 10.1002/anie.201209878] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Indexed: 11/10/2022]
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8
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Perekalin DS, Karslyan EE, Trifonova EA, Konovalov AI, Loskutova NL, Nelyubina YV, Kudinov AR. Synthesis of Ruthenium Half-Sandwich Complexes by Naphthalene Replacement in [CpRu(C10H8)]+. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201112] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Li Z, Jiang YY, Yeagley AA, Bour JP, Liu L, Chruma JJ, Fu Y. Mechanism of the Pd-catalyzed decarboxylative allylation of α-imino esters: decarboxylation via free carboxylate ion. Chemistry 2012; 18:14527-38. [PMID: 23002017 DOI: 10.1002/chem.201201425] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 07/09/2012] [Indexed: 11/09/2022]
Abstract
The Pd-catalyzed decarboxylative allylation of α-(diphenylmethylene)imino esters (1) or allyl diphenylglycinate imines (2) is an efficient method to construct new C(sp(3))-C(sp(3)) bonds. The detailed mechanism of this reaction was studied by theoretical calculations [ONIOM(B3LYP/LANL2DZ+p:PM6)] combined with experimental observations. The overall catalytic cycle was found to consist of three steps: oxidative addition, decarboxylation, and reductive allylation. The oxidative addition of 1 to [(dba)Pd(PPh(3))(2)] (dba = dibenzylideneacetone) produces an allylpalladium cation and a carboxylate anion with a low activation barrier of +9.1 kcal mol(-1). The following rate-determining decarboxylation proceeds via a solvent-exposed α-imino carboxylate anion rather than an O-ligated allylpalladium carboxylate with an activation barrier of +22.7 kcal mol(-1). The 2-azaallyl anion generated by this decarboxylation attacks the face of the allyl ligand opposite to the Pd center in an outer-sphere process to produce major product 3, with a lower activation barrier than that of the minor product 4. A positive linear Hammett correlation [ρ = 1.10 for the PPh(3) ligand] with the observed regioselectivity (3 versus 4) supports an outer-sphere pathway for the allylation step. When Pd combined with the bis(diphenylphosphino)butane (dppb) ligand is employed as a catalyst, the decarboxylation still proceeds via the free carboxylate anion without direct assistance of the cationic Pd center. Consistent with experimental observations, electron-withdrawing substituents on 2 were calculated to have lower activation barriers for decarboxylation and, thus, accelerate the overall reaction rates.
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Affiliation(s)
- Zhe Li
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, PR China
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Begouin JM, Klein JEMN, Weickmann D, Plietker B. Allylic Substitutions Catalyzed by Miscellaneous Metals. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_15] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Moyano A, El-Hamdouni N, Atlamsani A. Asymmetric Organocatalytic Rearrangement Reactions. Chemistry 2010; 16:5260-73. [DOI: 10.1002/chem.200903410] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Zhang HJ, Demerseman B, Xi Z, Bruneau C. Ruthenium Catalysts for Controlled Mono- and Bis-Allylation of Active Methylene Compounds with Aliphatic Allylic Substrates. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900498] [Citation(s) in RCA: 4] [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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Hintermann L, Xiao L, Labonne A, Englert U. [CpRu(η6-naphthalene)]PF6 as Precursor in Complex Synthesis and Catalysis with the Cyclopentadienyl-Ruthenium(II) Cation. Organometallics 2009. [DOI: 10.1021/om900333t] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lukas Hintermann
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Li Xiao
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Aurélie Labonne
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Ulli Englert
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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Austeri M, Linder D, Lacour J. Enantioselective and Regioselective Ruthenium‐Catalyzed Decarboxylative Etherification of Allyl Aryl Carbonates. Chemistry 2008; 14:5737-41. [DOI: 10.1002/chem.200800619] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bouziane A, Hélou M, Carboni B, Carreaux F, Demerseman B, Bruneau C, Renaud JL. Ruthenium-Catalyzed Synthesis of Allylic Alcohols: Boronic Acid as a Hydroxide Source. Chemistry 2008; 14:5630-7. [DOI: 10.1002/chem.200702030] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhang K, Peng Q, Hou XL, Wu YD. Highly Enantioselective Palladium-Catalyzed Alkylation of Acyclic Amides. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704629] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhang K, Peng Q, Hou XL, Wu YD. Highly Enantioselective Palladium-Catalyzed Alkylation of Acyclic Amides. Angew Chem Int Ed Engl 2008; 47:1741-4. [DOI: 10.1002/anie.200704629] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Constant S, Tortoioli S, Müller J, Linder D, Buron F, Lacour J. Air- and Microwave-Stable (C5H5)Ru Catalysts for Improved Regio- and Enantioselective Carroll Rearrangements. Angew Chem Int Ed Engl 2007; 46:8979-82. [DOI: 10.1002/anie.200704019] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Constant S, Tortoioli S, Müller J, Linder D, Buron F, Lacour J. Air- and Microwave-Stable (C5H5)Ru Catalysts for Improved Regio- and Enantioselective Carroll Rearrangements. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200704019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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