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Li J, Xu Y, Hu X, Zhu S, Liu L. Easy Access to 2,4-Disubstituted Cyclopentenones by a Gold(III)-Catalyzed A3-Coupling/Cyclization Cascade. Org Lett 2020; 22:9478-9483. [PMID: 33237782 DOI: 10.1021/acs.orglett.0c03451] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and convenient synthesis of 2,4-disubstituted cyclopentenones has been achieved through a Au(III)-catalyzed isomerization-A3-coupling/cyclization cascade. A possible mechanism involving an initial Au(III)-catalyzed isomerization, A3-type coupling, and cyclization via an enol intermediate is postulated.
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Affiliation(s)
- Jian Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Yue Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Xiwen Hu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Shangrong Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Li Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
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2
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Kumar R, Krieger JP, Gómez-Bengoa E, Fox T, Linden A, Nevado C. The First Gold(III) Formate: Evidence for β-Hydride Elimination. Angew Chem Int Ed Engl 2017; 56:12862-12865. [DOI: 10.1002/anie.201705557] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Jean-Philippe Krieger
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I; Universidad del Pais Vasco; Apdo 1072 CP-20080 Donostia-San Sebastián Spain
| | - Thomas Fox
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Anthony Linden
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
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3
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Kumar R, Krieger JP, Gómez-Bengoa E, Fox T, Linden A, Nevado C. The First Gold(III) Formate: Evidence for β-Hydride Elimination. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705557] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Jean-Philippe Krieger
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I; Universidad del Pais Vasco; Apdo 1072 CP-20080 Donostia-San Sebastián Spain
| | - Thomas Fox
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Anthony Linden
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
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4
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Romero EA, Olsen PM, Jazzar R, Soleilhavoup M, Gembicky M, Bertrand G. Spectroscopic Evidence for a Monomeric Copper(I) Hydride and Crystallographic Characterization of a Monomeric Silver(I) Hydride. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700858] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Erik A. Romero
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Pauline M. Olsen
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Rodolphe Jazzar
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Michele Soleilhavoup
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Milan Gembicky
- UCSD Crystallography Facility Department of Chemistry and Biochemistry Urey Hall Room 5128 9500 Gilman Drive, M/C 0358 La Jolla CA 92093-0358 USA
| | - Guy Bertrand
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
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Romero EA, Olsen PM, Jazzar R, Soleilhavoup M, Gembicky M, Bertrand G. Spectroscopic Evidence for a Monomeric Copper(I) Hydride and Crystallographic Characterization of a Monomeric Silver(I) Hydride. Angew Chem Int Ed Engl 2017; 56:4024-4027. [DOI: 10.1002/anie.201700858] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Erik A. Romero
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Pauline M. Olsen
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Rodolphe Jazzar
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Michele Soleilhavoup
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
| | - Milan Gembicky
- UCSD Crystallography Facility Department of Chemistry and Biochemistry Urey Hall Room 5128 9500 Gilman Drive, M/C 0358 La Jolla CA 92093-0358 USA
| | - Guy Bertrand
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
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Pintus A, Rocchigiani L, Fernandez-Cestau J, Budzelaar PHM, Bochmann M. Stereo- and Regioselective Alkyne Hydrometallation with Gold(III) Hydrides. Angew Chem Int Ed Engl 2016; 55:12321-4. [PMID: 27592697 PMCID: PMC5113781 DOI: 10.1002/anie.201607522] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 11/10/2022]
Abstract
The hydroauration of internal and terminal alkynes by gold(III) hydride complexes [(C^N^C)AuH] was found to be mediated by radicals and proceeds by an unexpected binuclear outer-sphere mechanism to cleanly form trans-insertion products. Radical precursors such as azobisisobutyronitrile lead to a drastic rate enhancement. DFT calculations support the proposed radical mechanism, with very low activation barriers, and rule out mononuclear mechanistic alternatives. These alkyne hydroaurations are highly regio- and stereospecific for the formation of Z-vinyl isomers, with Z/E ratios of >99:1 in most cases.
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Affiliation(s)
- Anna Pintus
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Julio Fernandez-Cestau
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Peter H M Budzelaar
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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Pintus A, Rocchigiani L, Fernandez-Cestau J, Budzelaar PHM, Bochmann M. Stereo- and Regioselective Alkyne Hydrometallation with Gold(III) Hydrides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607522] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anna Pintus
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Luca Rocchigiani
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Julio Fernandez-Cestau
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | | | - Manfred Bochmann
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
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Rekhroukh F, Estévez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Experimental and Theoretical Evidence for an Agostic Interaction in a Gold(III) Complex. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511111] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Laura Estévez
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (UMR 5254), Equipe Chimie Physique; Université de Pau et des Pays de l'Adour, Hélioparc; 2 Avenue du Président Angot 64053 Pau Cedex 09 France
- Departamento de Química Física; Universidade de Vigo, Facultade de Química Lagoas-Marcosende s/n; 36310 Vigo, Galicia Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241); 205 Route de Narbonne 31077 Toulouse France
| | - Karinne Miqueu
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (UMR 5254), Equipe Chimie Physique; Université de Pau et des Pays de l'Adour, Hélioparc; 2 Avenue du Président Angot 64053 Pau Cedex 09 France
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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Rekhroukh F, Estévez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Experimental and Theoretical Evidence for an Agostic Interaction in a Gold(III) Complex. Angew Chem Int Ed Engl 2016; 55:3414-8. [DOI: 10.1002/anie.201511111] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Indexed: 01/30/2023]
Affiliation(s)
- Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Laura Estévez
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (UMR 5254), Equipe Chimie Physique; Université de Pau et des Pays de l'Adour, Hélioparc; 2 Avenue du Président Angot 64053 Pau Cedex 09 France
- Departamento de Química Física; Universidade de Vigo, Facultade de Química Lagoas-Marcosende s/n; 36310 Vigo, Galicia Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241); 205 Route de Narbonne 31077 Toulouse France
| | - Karinne Miqueu
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (UMR 5254), Equipe Chimie Physique; Université de Pau et des Pays de l'Adour, Hélioparc; 2 Avenue du Président Angot 64053 Pau Cedex 09 France
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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Joost M, Amgoune A, Bourissou D. Reaktivität von Goldkomplexen in metallorganischen Elementarreaktionen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506271] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Joost M, Amgoune A, Bourissou D. Reactivity of Gold Complexes towards Elementary Organometallic Reactions. Angew Chem Int Ed Engl 2015; 54:15022-45. [DOI: 10.1002/anie.201506271] [Citation(s) in RCA: 223] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 11/09/2022]
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Joost M, Estévez L, Mallet-Ladeira S, Miqueu K, Amgoune A, Bourissou D. Enhanced π-Backdonation from Gold(I): Isolation of Original Carbonyl and Carbene Complexes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407684] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Joost M, Estévez L, Mallet-Ladeira S, Miqueu K, Amgoune A, Bourissou D. Enhanced π-backdonation from gold(I): isolation of original carbonyl and carbene complexes. Angew Chem Int Ed Engl 2014; 53:14512-6. [PMID: 25359485 DOI: 10.1002/anie.201407684] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Indexed: 01/04/2023]
Abstract
The specific electronic properties of bent o-carborane diphosphine gold(I) fragments were exploited to obtain the first classical carbonyl complex of gold [(DPCb)AuCO](+) (ν(CO)=2143 cm(-1) ) and the diphenylcarbene complex [(DPCb)Au(CPh2 )](+) , which is stabilized by the gold fragment rather than the carbene substituents. These two complexes were characterized by spectroscopic and crystallographic means. The [(DPCb)Au](+) fragment plays a major role in their stability, as substantiated by DFT calculations. The bending induced by the diphosphine ligand substantially enhances π-backdonation and thereby allows the isolation of carbonyl and carbene complexes featuring significant π-bond character.
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Affiliation(s)
- Maximilian Joost
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier/CNRS UMR 5069, 118 Route de Narbonne, 31062 Toulouse Cedex 09 (France)
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Rekhroukh F, Brousses R, Amgoune A, Bourissou D. Cationic Gold(III) Alkyl Complexes: Generation, Trapping, and Insertion of Norbornene. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409604] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rekhroukh F, Brousses R, Amgoune A, Bourissou D. Cationic Gold(III) Alkyl Complexes: Generation, Trapping, and Insertion of Norbornene. Angew Chem Int Ed Engl 2014; 54:1266-9. [DOI: 10.1002/anie.201409604] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 11/09/2022]
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Phillips N, Dodson T, Tirfoin R, Bates JI, Aldridge S. Expanded-ring N-heterocyclic carbenes for the stabilization of highly electrophilic gold(I) cations. Chemistry 2014; 20:16721-31. [PMID: 25336057 DOI: 10.1002/chem.201404939] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Indexed: 12/31/2022]
Abstract
Strategies for the synthesis of highly electrophilic Au(I) complexes from either hydride- or chloride-containing precursors have been investigated by employing sterically encumbered Dipp-substituted expanded-ring NHCs (Dipp=2,6-iPr2 C6 H3 ). Thus, complexes of the type (NHC)AuH have been synthesised (for NHC=6-Dipp or 7-Dipp) and shown to feature significantly more electron-rich hydrides than those based on ancillary imidazolylidene donors. This finding is consistent with the stronger σ-donor character of these NHCs, and allows for protonation of the hydride ligand. Such chemistry leads to the loss of dihydrogen and to the trapping of the [(NHC)Au](+) fragment within a dinuclear gold cation containing a bridging hydride. Activation of the hydride ligand in (NHC)AuH by B(C6 F5 )3 , by contrast, generates a species (at low temperatures) featuring a [HB(C6 F5 )3 ](-) fragment with spectroscopic signatures similar to the "free" borate anion. Subsequent rearrangement involves BC bond cleavage and aryl transfer to the carbophilic metal centre. Under halide abstraction conditions utilizing Na[BAr(f) 4 ] (Ar(f) =C6 H3 (CF3 )2 -3,5), systems of the type [(NHC)AuCl] (NHC=6-Dipp or 7-Dipp) generate dinuclear complexes [{(NHC)Au}2 (μ-Cl)](+) that are still electrophilic enough at gold to induce aryl abstraction from the [BAr(f) 4 ](-) counterion.
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Affiliation(s)
- Nicholas Phillips
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR (UK)
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Joost M, Gualco P, Mallet-Ladeira S, Amgoune A, Bourissou D. DirectsynInsertion of Alkynes and Allenes into AuSi Bonds. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303450] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Joost M, Gualco P, Mallet-Ladeira S, Amgoune A, Bourissou D. DirectsynInsertion of Alkynes and Allenes into AuSi Bonds. Angew Chem Int Ed Engl 2013; 52:7160-3. [DOI: 10.1002/anie.201303450] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Indexed: 11/11/2022]
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