1
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Kramm F, Ullwer F, Klinnert B, Zheng M, Plietker B. Iron‐Catalyzed Cycloisomerization and C−C Bond Activation to Access Non‐canonical Tricyclic Cyclobutanes. Angew Chem Int Ed Engl 2022; 61:e202205169. [PMID: 35818786 PMCID: PMC9546230 DOI: 10.1002/anie.202205169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 11/15/2022]
Abstract
Cycloisomerizations are powerful skeletal rearrangements that allow the construction of complex molecular architectures in an atom‐economic way. We present here an unusual type of cyclopropyl enyne cycloisomerization that couples the process of a cycloisomerization with the activation of a C−C bond in cyclopropanes. A set of substituted non‐canonical tricyclic cyclobutanes were synthesized under mild conditions using [(Ph3P)2Fe(CO)(NO)]BF4 as catalyst in good to excellent yields with high levels of stereocontrol.
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Affiliation(s)
- Frederik Kramm
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Franziska Ullwer
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Benedict Klinnert
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
| | - Min Zheng
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
| | - Bernd Plietker
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
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2
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Kramm F, Ullwer F, Zheng M, Plietker B, Klinnert B. Iron‐Catalyzed Cycloisomerization and C‐C Bond Activation to Access Non‐canonical Tricyclic Cyclobutanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205169] [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)
- Frederik Kramm
- Universität Stuttgart Fakultät 3 Chemie: Universitat Stuttgart Fakultat 3 Chemie Institut für Organische Chemie GERMANY
| | - Franziska Ullwer
- Universität Stuttgart Fakultät 3 Chemie: Universitat Stuttgart Fakultat 3 Chemie Institut für Organische Chemie GERMANY
| | - Min Zheng
- Technische Universität Dresden: Technische Universitat Dresden Fakultät Chemie und Lebensmittelchemie GERMANY
| | - Bernd Plietker
- Dresden University of Technology: Technische Universitat Dresden Organische Chemie I Fakultät für Chemie und Lebensmittelchemie 01062 Dresden GERMANY
| | - Benedict Klinnert
- Technische Universität Dresden: Technische Universitat Dresden Fakultät Chemie und Lebensmittelchemie GERMANY
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3
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Gubler J, Radić M, Stöferle Y, Chen P. 2‐Aminoalkylgold Complexes: The Putative Intermediate in Au‐Catalyzed Hydroamination of Alkenes Does Not Protodemetalate. Chemistry 2022; 28:e202200332. [PMID: 35319803 PMCID: PMC9401602 DOI: 10.1002/chem.202200332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Indexed: 11/30/2022]
Abstract
Au‐catalyzed hydroamination proceeds well for alkynes but not alkenes. We report gas‐phase binding energies of alkenes and alkynes to a cationic Au center, which indicate that differences in binding are not the origin of the disparate chemical behavior. We further report the synthesis and characterization of 2‐aminoalkylgold complexes, which would be the intermediates in a hypothetical Au‐catalyzed hydroamination of styrene. The reactivity of the well‐characterized and isolable complexes reveals that protonation or alkylation of the 2‐aminoalkylgold complexes results in amine elimination in solution, and in the gas phase, indicating that the failure of Au‐catalyzed alkene hydroamination derives from a non‐competitive protodeauration step. We analyze possible transition states for the protodeauration, and identify an insufficiently strong Au‐proton interaction as the reason that the transition states lie too high in energy to compete.
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Affiliation(s)
- Joël Gubler
- Laboratorium für Organische Chemie ETH Zürich Rämistrasse 101 8092 Zürich Switzerland
| | - Mitar Radić
- Laboratorium für Organische Chemie ETH Zürich Rämistrasse 101 8092 Zürich Switzerland
| | - Yannick Stöferle
- Laboratorium für Organische Chemie ETH Zürich Rämistrasse 101 8092 Zürich Switzerland
| | - Peter Chen
- Laboratorium für Organische Chemie ETH Zürich Rämistrasse 101 8092 Zürich Switzerland
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4
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Rong Wong Z, Schramm TK, Loipersberger M, Head-Gordon M, Toste FD. Revisiting the Bonding Model for Gold(I) Species: The Importance of Pauli Repulsion Revealed in a Gold(I)-Cyclobutadiene Complex. Angew Chem Int Ed Engl 2022; 61:e202202019. [PMID: 35261142 PMCID: PMC9173747 DOI: 10.1002/anie.202202019] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Indexed: 11/12/2022]
Abstract
Understanding the bonding of gold(I) species has been central to the development of gold(I) catalysis. Herein, we present the synthesis and characterization of the first gold(I)-cyclobutadiene complex, accompanied with bonding analysis by state-of-the-art energy decomposition analysis methods. Analysis of possible coordination modes for the new species not only confirms established characteristics of gold(I) bonding, but also suggests that Pauli repulsion is a key yet hitherto overlooked element. Additionally, we obtain a new perspective on gold(I)-bonding by comparison of the gold(I)-cyclobutadiene to congeners stabilized by p-, d-, and f-block metals. Consequently, we refine the gold(I) bonding model, with a delicate interplay of Pauli repulsion and charge transfer as the key driving force for various coordination motifs. Pauli repulsion is similarly determined as a significant interaction in AuI -alkyne species, corroborating this revised understanding of AuI bonding.
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Affiliation(s)
- Zeng Rong Wong
- Department of Chemistry, University of California, Berkeley 420 Latimer Hall, Berkeley, CA 94720 (USA)
| | - Tim K. Schramm
- Department of Chemistry, University of California, Berkeley 420 Latimer Hall, Berkeley, CA 94720 (USA)
- Department of Chemistry, RWTH Aachen University, Landoltweg 1 Aachen, 52074 (Germany)
| | - Matthias Loipersberger
- Department of Chemistry, University of California, Berkeley 420 Latimer Hall, Berkeley, CA 94720 (USA)
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley 420 Latimer Hall, Berkeley, CA 94720 (USA)
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 70A3307, Berkeley, CA 94720 (USA)
| | - F. Dean Toste
- Department of Chemistry, University of California, Berkeley 420 Latimer Hall, Berkeley, CA 94720 (USA)
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 70A3307, Berkeley, CA 94720 (USA)
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5
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Das A, Patil NT. Enantioselective C-H Functionalization Reactions under Gold Catalysis. Chemistry 2022; 28:e202104371. [PMID: 35014732 DOI: 10.1002/chem.202104371] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Indexed: 01/18/2023]
Abstract
Transition metal-catalyzed enantioselective functionalization of ubiquitous C-H bonds has proven to be promising field as it offers the construction of chiral molecular complexity in a step- and atom-economical manner. In recent years, gold has emerged as an attractive contender for catalyzing such reactions. The unique reactivities and selectivities offered by gold catalysts have been exploited to access numerous asymmetric transformations based on gold-catalyzed C-H functionalization processes. Herein, this review critically highlights the major advances and discoveries made in the enantioselective C-H functionalization under gold catalysis which is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Avishek Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
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6
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Wong ZR, Schramm TK, Loipersberger M, Head‐Gordon M, Toste FD. Revisiting the Bonding Model for Gold(I) Species: The Importance of Pauli Repulsion Revealed in a Gold(I)‐Cyclobutadiene Complex. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zeng Rong Wong
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
| | - Tim K. Schramm
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Department of Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Matthias Loipersberger
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
| | - Martin Head‐Gordon
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road, MS 70A3307 Berkeley CA 94720 USA
| | - F. Dean Toste
- Department of Chemistry University of California, Berkeley 420 Latimer Hall Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road, MS 70A3307 Berkeley CA 94720 USA
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7
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Conceptual advances in the preparation and excited-state properties of neutral luminescent (C^N) and (C^C*) monocyclometalated gold(III) complexes. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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8
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Wu H, Wang Y, Jones LO, Liu W, Zhang L, Song B, Chen XY, Stern CL, Schatz GC, Stoddart JF. Selective Separation of Hexachloroplatinate(IV) Dianions Based on Exo-Binding with Cucurbit[6]uril. Angew Chem Int Ed Engl 2021; 60:17587-17594. [PMID: 34031957 DOI: 10.1002/anie.202104646] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/13/2021] [Indexed: 01/10/2023]
Abstract
The recognition and separation of anions attracts attention from chemists, materials scientists, and engineers. Employing exo-binding of artificial macrocycles to selectively recognize anions remains a challenge in supramolecular chemistry. We report the instantaneous co-crystallization and concomitant co-precipitation between [PtCl6 ]2- dianions and cucurbit[6]uril, which relies on the selective recognition of these dianions through noncovalent bonding interactions on the outer surface of cucurbit[6]uril. The selective [PtCl6 ]2- dianion recognition is driven by weak [Pt-Cl⋅⋅⋅H-C] hydrogen bonding and [Pt-Cl⋅⋅⋅C=O] ion-dipole interactions. The synthetic protocol is highly selective. Recognition is not observed in combinations between cucurbit[6]uril and six other Pt- and Pd- or Rh-based chloride anions. We also demonstrated that cucurbit[6]uril is able to separate selectively [PtCl6 ]2- dianions from a mixture of [PtCl6 ]2- , [PdCl4 ]2- , and [RhCl6 ]3- anions. This protocol could be exploited to recover platinum from spent vehicular three-way catalytic converters and other platinum-bearing metal waste.
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Affiliation(s)
- Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Yu Wang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Leighton O Jones
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Wenqi Liu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Bo Song
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - George C Schatz
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia.,Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, China
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9
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Wu H, Wang Y, Jones LO, Liu W, Zhang L, Song B, Chen X, Stern CL, Schatz GC, Stoddart JF. Selective Separation of Hexachloroplatinate(IV) Dianions Based on Exo‐Binding with Cucurbit[6]uril. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Huang Wu
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Yu Wang
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Leighton O. Jones
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Wenqi Liu
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Long Zhang
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Bo Song
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Xiao‐Yang Chen
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Charlotte L. Stern
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - George C. Schatz
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - J. Fraser Stoddart
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- School of Chemistry University of New South Wales Sydney NSW 2052 Australia
- Institute of Molecular Science Department of Chemistry Zhejiang University Hangzhou 310027 China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215 China
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10
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González JA, Verdugo F, Mascareñas JL, López F, Nevado C. [C^N]-Alkenyl Gold(III) Complexes by Proximal Ring-Opening of (2-Pyridyl)alkylidenecyclopropanes: Mechanistic Insights. Angew Chem Int Ed Engl 2020; 59:20049-20054. [PMID: 32671957 DOI: 10.1002/anie.202007371] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/10/2020] [Indexed: 12/29/2022]
Abstract
Pyridine-substituted alkylidenecyclopropanes (Py-ACPs) react with gold(III) salts under mild reaction conditions through an unprecedented, proximal ring-opening pathway, to generate highly appealing, catalytically active pyridine alkenyl [C^N]-gold(III) species. Mechanistic studies reveal that the activation of the C-C bond of the ACP takes place through an unusual concerted, σ-bond metathesis type-process.
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Affiliation(s)
- Jorge A González
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Felipe Verdugo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela, Spain.,Instituto de Química Orgánica General (CSIC), Madrid, Spain
| | - Cristina Nevado
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
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11
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González JA, Verdugo F, Mascareñas JL, López F, Nevado C. [C^N]‐Alkenyl Gold(III) Complexes by Proximal Ring‐Opening of (2‐Pyridyl)alkylidenecyclopropanes: Mechanistic Insights. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jorge A. González
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Felipe Verdugo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica Universidad de Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica Universidad de Santiago de Compostela Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica Universidad de Santiago de Compostela Spain
- Instituto de Química Orgánica General (CSIC) Madrid Spain
| | - Cristina Nevado
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zürich Switzerland
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12
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Vayer M, Bour C, Gandon V. Exploring the Versatility of 7‐Alkynylcycloheptatriene Scaffolds Under π‐Acid Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Marie Vayer
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris‐Saclay Bâtiment 420 91405 Orsay cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168, Ecole Polytechnique Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
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13
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Nijamudheen A, Datta A. Gold-Catalyzed Cross-Coupling Reactions: An Overview of Design Strategies, Mechanistic Studies, and Applications. Chemistry 2019; 26:1442-1487. [PMID: 31657487 DOI: 10.1002/chem.201903377] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/28/2019] [Indexed: 12/14/2022]
Abstract
Transition-metal-catalyzed cross-coupling reactions are central to many organic synthesis methodologies. Traditionally, Pd, Ni, Cu, and Fe catalysts are used to promote these reactions. Recently, many studies have showed that both homogeneous and heterogeneous Au catalysts can be used for activating selective cross-coupling reactions. Here, an overview of the past studies, current trends, and future directions in the field of gold-catalyzed coupling reactions is presented. Design strategies to accomplish selective homocoupling and cross-coupling reactions under both homogeneous and heterogeneous conditions, computational and experimental mechanistic studies, and their applications in diverse fields are critically reviewed. Specific topics covered are: oxidant-assisted and oxidant-free reactions; strain-assisted reactions; dual Au and photoredox catalysis; bimetallic synergistic reactions; mechanisms of reductive elimination processes; enzyme-mimicking Au chemistry; cluster and surface reactions; and plasmonic catalysis. In the relevant sections, theoretical and computational studies of AuI /AuIII chemistry are discussed and the predictions from the calculations are compared with the experimental observations to derive useful design strategies.
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Affiliation(s)
- A Nijamudheen
- School of Chemical Sciences, Indian Association for the, Cultivation of Sciences, 2A & 2B Raja S C Mullick Road, Kolkata, 700032, India.,Department of Chemical & Biomedical Engineering, Florida A&M University-Florida State University, Joint College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL, 32310, USA
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the, Cultivation of Sciences, 2A & 2B Raja S C Mullick Road, Kolkata, 700032, India
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14
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Blanc A, de Frémont P. When Gold Cations Meet Polyoxometalates. Chemistry 2019; 25:9553-9567. [DOI: 10.1002/chem.201806369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organique et Catalyse, Institut de Chimie (UMR 7177 CNRS)Université de Strasbourg 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Pierre de Frémont
- Equipe de Synthèse Réactivité et Catalyse Organométalliques, Institut de Chimie (UMR 7177 CNRS)Université de Strasbourg 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
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15
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Chambrier I, Rocchigiani L, Hughes DL, Budzelaar PMH, Bochmann M. Thermally Stable Gold(III) Alkene and Alkyne Complexes: Synthesis, Structures, and Assessment of the trans-Influence on Gold-Ligand Bond Enthalpies. Chemistry 2018; 24:11467-11474. [PMID: 29846025 DOI: 10.1002/chem.201802160] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 05/29/2018] [Indexed: 11/09/2022]
Abstract
The reaction of [C^C)Au(OEt2 )2 ]+ with 1,5-cyclooctadiene or norbornadiene affords the corresponding olefin complexes [(C^C)Au(COD)]SbF6 and [(C^C)Au(NBD)]SbF6 , which are thermally stable in solution and the solid state (C^C=4,4'-di-tert-butylbiphenyl-2,2'-diyl). The crystal structures of these complexes have been determined. By contrast, dienones such as dibenzylideneacetone are O- rather than C=C-bonded. The reactions of (C^C)Au(OAcF )(L) (L=PMe3 or CNxyl) with B(C6 F5 )3 in the presence of bis(1-adamantyl)acetylene give the mixed-ligand alkyne complexes [(C^C)Au(AdC≡CAd)(L)]+ , the first complexes of their type in gold chemistry. In the presence of an excess of acetylene these compounds are thermally stable in solution and as solids. The bonding of n- and π-donor ligands to AuIII fragments and the effect of the trans influence exerted by N- and C-donors was explored with the aid of DFT calculations. Results show that the Au-L bond enthalpies trans to anionic C are 35-60 % of the enthalpies trans to N, with strong π-acceptors being particularly affected. In comparison with [Me2 Au]+ , the [(C^C)Au]+ fragment is more polar and in bond enthalpy terms resembles Me2 Pt.
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Affiliation(s)
- Isabelle Chambrier
- 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
| | - David L Hughes
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Peter M H Budzelaar
- Department of Chemistry, University of Naples Federico II, Via Cintia, 80126, Naples, Italy
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
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16
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Wang J, Zhang S, Wojtas L, Shi X. Highly Efficient and Stereoselective Thioallylation of Alkynes: Possible Gold Redox Catalysis with No Need for a Strong Oxidant. Angew Chem Int Ed Engl 2018; 57:6915-6920. [PMID: 29663659 PMCID: PMC6121218 DOI: 10.1002/anie.201802540] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 11/07/2022]
Abstract
Stereoselective thioallylation of alkynes under possible gold redox catalysis was accomplished with high efficiency (as low as 0.1 % catalyst loading, up to 99 % yield) and broad substrate scope (various alkynes, inter- and intramolecular fashion). The gold(I) catalyst acts as both a π-acid for alkyne activation and a redox catalyst for AuI/III coupling, whereas the sulfonium cation generated in situ functions as a mild oxidant. This novel methodology provides an exciting system for gold redox catalysis without the need for a strong oxidant.
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Affiliation(s)
- Jin Wang
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Shuyao Zhang
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
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17
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Wang J, Zhang S, Xu C, Wojtas L, Akhmedov NG, Chen H, Shi X. Highly Efficient and Stereoselective Thioallylation of Alkynes: Possible Gold Redox Catalysis with No Need for a Strong Oxidant. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802540] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jin Wang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Shuyao Zhang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Chang Xu
- Department of Chemistry and Biochemistry Ohio University Athens OH 45791 USA
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Novruz G. Akhmedov
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506 USA
| | - Hao Chen
- Department of Chemistry and Biochemistry Ohio University Athens OH 45791 USA
| | - Xiaodong Shi
- Department of Chemistry University of South Florida Tampa FL 33620 USA
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18
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Lee YC, Kumar K, Waldmann H. Ligandengesteuerte divergente Synthese von carbo- und heterocyclischen Ringsystemen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710247] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yen-Chun Lee
- Max-Planck-Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
| | - Kamal Kumar
- Max-Planck-Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
| | - Herbert Waldmann
- Max-Planck-Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Straße 11 44227 Dortmund Deutschland
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn-Straße 6 44227 Dortmund Deutschland
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19
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Lee YC, Kumar K, Waldmann H. Ligand-Directed Divergent Synthesis of Carbo- and Heterocyclic Ring Systems. Angew Chem Int Ed Engl 2018; 57:5212-5226. [DOI: 10.1002/anie.201710247] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Yen-Chun Lee
- Max-Planck Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn Str. 11 44227 Dortmund Germany
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227 Dortmund Germany
| | - Kamal Kumar
- Max-Planck Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn Str. 11 44227 Dortmund Germany
| | - Herbert Waldmann
- Max-Planck Institut für molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn Str. 11 44227 Dortmund Germany
- Fakultät Chemie und Chemische Biologie; Technische Universität Dortmund; Otto-Hahn Str. 6 44227 Dortmund Germany
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20
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Yue L, Zhou S, Sun X, Schlangen M, Schwarz H. Direkte Umwandlung von Methan zu protoniertem Formaldehyd bei Raumtemperatur in der Gasphase: Zur Rolle von Quecksilber unter den Oxidkationen der Zinktriade. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lei Yue
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou V.R. China
| | - Xiaoyan Sun
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Maria Schlangen
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
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21
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Yue L, Zhou S, Sun X, Schlangen M, Schwarz H. Direct Room-Temperature Conversion of Methane into Protonated Formaldehyde: The Gas-Phase Chemistry of Mercury among the Zinc Triad Oxide Cations. Angew Chem Int Ed Engl 2018; 57:3251-3255. [DOI: 10.1002/anie.201712405] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/22/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Lei Yue
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou P.R. China
| | - Xiaoyan Sun
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Maria Schlangen
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
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22
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Rocchigiani L, Fernandez‐Cestau J, Agonigi G, Chambrier I, Budzelaar PHM, Bochmann M. Gold(III) Alkyne Complexes: Bonding and Reaction Pathways. Angew Chem Int Ed Engl 2017; 56:13861-13865. [PMID: 28892244 PMCID: PMC5698712 DOI: 10.1002/anie.201708640] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Indexed: 11/26/2022]
Abstract
The synthesis and characterization of hitherto hypothetical AuIII π-alkyne complexes is reported. Bonding and stability depend strongly on the trans effect and steric factors. Bonding characteristics shed light on the reasons for the very different stabilities between the classical alkyne complexes of PtII and their drastically more reactive AuIII congeners. Lack of back-bonding facilitates alkyne slippage, which is energetically less costly for gold than for platinum and explains the propensity of gold to facilitate C-C bond formation. Cycloaddition followed by aryl migration and reductive deprotonation is presented as a new reaction sequence in gold chemistry.
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Affiliation(s)
- Luca Rocchigiani
- School of ChemistryUniversity of East AngliaNorwich Research ParkNorwichNR4 7TJUK
| | | | - Gabriele Agonigi
- School of ChemistryUniversity of East AngliaNorwich Research ParkNorwichNR4 7TJUK
| | - Isabelle Chambrier
- School of ChemistryUniversity of East AngliaNorwich Research ParkNorwichNR4 7TJUK
| | | | - Manfred Bochmann
- School of ChemistryUniversity of East AngliaNorwich Research ParkNorwichNR4 7TJUK
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23
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Fürstner A. Gold-Katalyse für die Heterocyclenchemie: eine repräsentative Fallstudie zu Naturstoffen der Pyron-Reihe. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707260] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Deutschland
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24
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Fürstner A. Gold Catalysis for Heterocyclic Chemistry: A Representative Case Study on Pyrone Natural Products. Angew Chem Int Ed Engl 2017; 57:4215-4233. [PMID: 28862364 DOI: 10.1002/anie.201707260] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Indexed: 11/06/2022]
Abstract
2-Pyrones and 4-pyrones are common structural motifs in bioactive natural products. However, traditional methods for their synthesis, which try to emulate the biosynthetic pathway of cyclization of a 1,3,5-tricarbonyl precursor, are often harsh and, therefore, not particularly suitable for applications to polyfunctionalized and/or sensitive target compounds. π-Acid catalysis, in contrast, has proved to be better for a systematic exploration of the pyrone estate. To this end, alkynes are used as stable ketone surrogates, which can be activated under exceedingly mild conditions due to the pronounced carbophilicity of [LAu]+ fragments (L=two electron donor ligand); attack of a tethered ester carbonyl group onto the transient alkyne-gold complex then forges the pyrone ring in a fully regiocontrolled manner.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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25
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Rocchigiani L, Fernandez-Cestau J, Agonigi G, Chambrier I, Budzelaar PHM, Bochmann M. Gold(III) Alkyne Complexes: Bonding and Reaction Pathways. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708640] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- 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
| | - Gabriele Agonigi
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Isabelle Chambrier
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Peter H. M. Budzelaar
- Department of Chemistry; University of Naples Federico II; Via Cintia 80126 Naples Italy
| | - Manfred Bochmann
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
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26
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Vayer M, Guillot R, Bour C, Gandon V. Revealing the Activity of π-Acid Catalysts using a 7-Alkynyl Cycloheptatriene. Chemistry 2017; 23:13901-13905. [PMID: 28837245 DOI: 10.1002/chem.201703817] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 11/10/2022]
Abstract
A compound that isomerizes into distinct products depending on the particular Lewis acid or Brønsted acid catalyst used is disclosed. One product can only be obtained with the softest π-acids, such as Au, Pt, Ga, or In complexes. Another is formed only with harder π-acids incorporating Ag or Cu salts. The formation of the third category requires even harder π-acids or protons. This simple benchmark reaction allows for prediction of the category of transformations that can be catalyzed by a new complex. It also informs whether protons have been unintentionally generated in the reaction mixture.
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Affiliation(s)
- Marie Vayer
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Regis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay, France.,Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, 91198, Gif-sur-Yvette, France
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27
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Teci M, Hueber D, Pale P, Toupet L, Blanc A, Brenner E, Matt D. Metal Confinement through N-(9-Alkyl)fluorenyl-Substituted N-Heterocyclic Carbenes and Its Consequences in Gold-Catalysed Reactions Involving Enynes. Chemistry 2017; 23:7809-7818. [PMID: 28523648 DOI: 10.1002/chem.201701129] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/09/2017] [Indexed: 11/05/2022]
Abstract
A series of gold(I) and gold(III) complexes containing bulky bis-N,N'-(9-alkylfluorenyl) heterocyclic carbene (R F-NHC) ligands have been prepared in high yields from appropriate imidazolinium, imidazolium and benzimidazolium salts. In all complexes, the carbene ligand provides high steric protection of the Au-X bond trans to the carbenic C atom. Irrespective of the metal oxidation state, the complexes showed high efficiency in a tandem 3,3-rearrangement/Nazarov reaction of an enynyl acetate. One of the AuIII complexes, [AuCl3 (R F-NHC)], was further found to be suitable for the efficient cyclisation of a propargylcarboxamide. Furthermore, unlike related NHC-gold(I) complexes based on conventional bulky N-heterocyclic carbenes (notably, 1,3-bis-(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr), 1,3-bis-(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) and 1,3-(bis-tert-butyl)imidazol-2-ylidene (ItBu)), the studied [AuI Cl(R F-NHC)] complexes catalysed the conversion of a 1,6-enyne in the presence of indole into a single product; this arises from the embracing character of the ligand, which prevents indole addition on one of the catalytic intermediates. A structure/selectivity relationship was established for all carbenes tested that took into account percent buried volumes and topographic steric maps. The results illustrate the high potential of confining NHCs in organic synthesis.
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Affiliation(s)
- Matthieu Teci
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Damien Hueber
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Loïc Toupet
- Institut de Physique de Rennes, UMR 6251 CNRS, Université de Rennes 1, Campus de Beaulieu, 35042, Rennes cedex, France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Eric Brenner
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Dominique Matt
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
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28
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Oliver-Meseguer J, Dominguez I, Gavara R, Leyva-Pérez A, Corma A. Disassembling Metal Nanocrystallites into Sub-nanometric Clusters and Low-faceted Nanoparticles for Multisite Catalytic Reactions. ChemCatChem 2017. [DOI: 10.1002/cctc.201700037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Judit Oliver-Meseguer
- Instituto de Tecnología Química; Universidad Politècnica de València-Consejo, Superior de Investigaciones Científicas; Avda. de los Naranjos s/n 46022 València Spain
| | - Irene Dominguez
- Packaging Lab; Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av.; Agustín Escardino 7 46980 Paterna València Spain
| | - Rafael Gavara
- Packaging Lab; Instituto de Agroquímica y Tecnología de Alimentos, IATA-CSIC, Av.; Agustín Escardino 7 46980 Paterna València Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química; Universidad Politècnica de València-Consejo, Superior de Investigaciones Científicas; Avda. de los Naranjos s/n 46022 València Spain
| | - Avelino Corma
- Instituto de Tecnología Química; Universidad Politècnica de València-Consejo, Superior de Investigaciones Científicas; Avda. de los Naranjos s/n 46022 València Spain
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29
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Michelet B, Lebœuf D, Bour C, Škoch K, Horký F, Štěpnička P, Gandon V. Catalytic Activity of Gold(I) Complexes with Hemilabile P,N Ligands. Chempluschem 2017; 82:442-448. [PMID: 31962025 DOI: 10.1002/cplu.201600562] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/22/2016] [Indexed: 01/16/2023]
Abstract
Two new cationic dinuclear gold(I) complexes, [Au2 {μ(P,N)-5}2 ]X2 -in which X=NTf2 (7; Tf=trifluoromethanesulfonate) or SbF6 (8) and 2-(diphenylphosphanyl)benzonitrile (5) is a P,N-bridging donor-have been synthesized and structurally characterized. These air-stable species and their dimeric and polymeric analogues possessing 1'-(diphenylphosphanyl)-1-cyanoferrocene (1) as the bridging ligand, [Au2 {μ(P,N)-1}2 ](NTf2 )2 and [Au{μ(P,N)-1}]n [SbF6 ]n , were used as precatalysts in various Au-mediated C-C and C-O bond-forming reactions. The reactivity of these complexes revealed the hemilabile nature of their P,N ligands. In the series of tested precatalysts, complex 8 exerted particularly high catalytic activity at low Au loading, even in reactions that usually require high amounts of gold catalyst to proceed efficiently under standard reaction conditions.
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Affiliation(s)
- Bastien Michelet
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405, Orsay cedex, France
| | - David Lebœuf
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405, Orsay cedex, France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405, Orsay cedex, France
| | - Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 12840, Prague, Czech Republic
| | - Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 12840, Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 12840, Prague, Czech Republic
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, bâtiment 420, 91405, Orsay cedex, France
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30
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612243] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
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31
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017; 56:3074-3079. [PMID: 28165658 DOI: 10.1002/anie.201612243] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 01/28/2023]
Abstract
Unprecedented stable BINOL/gold(III) complexes, adopting a novel C,O-chelation mode, were synthesized by a modular approach through combination of 1,1'-binaphthalene-2,2'-diols (BINOLs) and cyclometalated gold(III) dichloride complexes [(C^N)AuCl2 ]. X-ray crystallographic analysis revealed that the bidentate BINOL ligands tautomerized and bonded to the AuIII atom through C,O-chelation to form a five-membered ring instead of the conventional O,O'-chelation giving a seven-membered ring. These gold(III) complexes catalyzed acetalization/cycloisomerization and carboalkoxylation of ortho-alkynylbenzaldehydes with trialkyl orthoformates.
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Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
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32
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Cyclometallierte AuIII
-Komplexe: Synthese, Reaktivität und physikalisch-chemische Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607225] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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33
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Kumar R, Nevado C. Cyclometalated Gold(III) Complexes: Synthesis, Reactivity, and Physicochemical Properties. Angew Chem Int Ed Engl 2017; 56:1994-2015. [DOI: 10.1002/anie.201607225] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/21/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
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34
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Alcaide B, Almendros P, Cembellín S, Fernández I, Martínez Del Campo T. Metal-Catalyzed Cyclization Reactions of 2,3,4-Trien-1-ols: A Joint Experimental-Computational Study. Chemistry 2016; 22:11667-76. [PMID: 27383332 DOI: 10.1002/chem.201601838] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 01/26/2023]
Abstract
Controlled preparation of tri- and tetrasubstituted furans, as well as carbazoles has been achieved through chemo- and regioselective metal-catalyzed cyclization reactions of cumulenic alcohols. The gold- and palladium-catalyzed cycloisomerization reactions of cumulenols, including indole-tethered 2,3,4-trien-1-ols, to trisubstituted furans was effective, due to a 5-endo-dig oxycyclization by attack of the hydroxy group onto the central cumulene double bond. In contrast, palladium-catalyzed heterocyclization/coupling reactions with 3-bromoprop-1-enes furnished tetrasubstituted furans. Also studied was the palladium-catalyzed cyclization/coupling sequence involving protected indole-tethered 2,3,4-trien-1-ols and 3-bromoprop-1-enes that exclusively generated trisubstituted carbazole derivatives. These results could be explained through a selective 6-endo-dig cumulenic hydroarylation, followed by aromatization. DFT calculations were carried out to understand this difference in reactivity.
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Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Pedro Almendros
- Instituto de Qímica General, Consejo Superior de Investigaciones Científicas, IQOG-CSIC, Juan de la Cierva 3, 28006, Madrid, Spain.
| | - Sara Cembellín
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Teresa Martínez Del Campo
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040, Madrid, Spain
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35
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Manoni E, Bandini M. N-Allenyl Amides and O-Allenyl Ethers in Enantioselective Catalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600304] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisabetta Manoni
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum - University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Bandini
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum - University of Bologna; Via Selmi 2 40126 Bologna Italy
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36
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Manoni E, Daka M, Mastandrea MM, Nisi AD, Monari M, Bandini M. Catalytic α-Allylation of Enones with Alcohols via
[Gold(I)]-Mediated [3,3]-Sigmatropic Rearrangement of Propargylic Carboxylates. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Affiliation(s)
- Arianna Quintavalla
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum-University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Bandini
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum-University of Bologna; Via Selmi 2 40126 Bologna Italy
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38
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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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39
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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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40
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Debrouwer W, Heugebaert TSA, Roman BI, Stevens CV. Homogeneous Gold-Catalyzed Cyclization Reactions of Alkynes withN- andS-Nucleophiles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500520] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Pradal A, Gladiali S, Michelet V, Toullec PY. Combinatorial approach to chiral tris-ligated carbophilic platinum complexes: application to asymmetric catalysis. Chemistry 2014; 20:7128-35. [PMID: 24757042 DOI: 10.1002/chem.201304794] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 02/17/2014] [Indexed: 11/09/2022]
Abstract
A straightforward methodology for the synthesis of libraries of chiral tris-ligated cationic platinum complexes and their in situ evaluation as asymmetric carbophilic catalysts in a model domino hydroarylation/cyclization reaction of a 1,6-enyne was developed. A catalyst-generation process based on a combination of a monodentate and a bidentate phosphorus ligand allowed the formation of 108 chiral complexes. One-pot screening of the stereoinduction obtained with this library in a test domino addition/cyclization reaction validated this approach and stressed the key role played by the monodentate ligand partner in obtaining high enantioselectivities. In the case of two challenging substrate/nucleophile combinations, the combinatorial approach resulted in a significant gain in enantioselectivity.
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Affiliation(s)
- Alexandre Pradal
- Institut de Recherche de Chimie Paris, UMR 8247, Chimie ParisTech, ENSCP, 11, rue Pierre et Marie Curie, 75231 Paris CEDEX 05 (France), Fax: (+33) 144071062
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42
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Adcock HV, Langer T, Davies PW. 1,2-N-migration in a gold-catalysed synthesis of functionalised indenes by the 1,1-carboalkoxylation of ynamides. Chemistry 2014; 20:7262-6. [PMID: 24828030 PMCID: PMC4204129 DOI: 10.1002/chem.201403040] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Indexed: 12/02/2022]
Abstract
Unique α-hemiaminal ether gold carbene intermediates were accessed by a gold-catalysed 1,1-carboalkoxylation strategy and evolved through a highly selective 1,2-N-migration. This skeletal rearrangement gave functionalised indenes, and isotopic labelling confirmed the rare C–N bond cleavage of the ynamide moiety. The effect of substituents on the migration has been explored, and a model is proposed to rationalise the observed selectivity.
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Affiliation(s)
- Holly V Adcock
- School of Chemistry, University of Birmingham (UK), Fax: (+44) 121-4144403
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43
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Oliver-Meseguer J, Leyva-Pérez A, Corma A. Very Small (3-6 Atoms) Gold Cluster Catalyzed Carbon-Carbon and Carbon-Heteroatom Bond-Forming Reactions in Solution. ChemCatChem 2013. [DOI: 10.1002/cctc.201300695] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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44
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Oh CH, Kim JH, Piao L, Yu J, Kim SY. Gold carbenes from substituted propargyl acetates: intramolecular ene-type reactions to 2-acetoxynaphthalene derivatives. Chemistry 2013; 19:10501-5. [PMID: 23794486 DOI: 10.1002/chem.201301384] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Chang Ho Oh
- Department of Chemistry and Research Institute for Natural Science, Hanyang University, Sungdong-Gu, Seoul 133-791, Korea
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45
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Cabrero-Antonino JR, Leyva-Pérez A, Corma A. Iron(III) Triflimide as a Catalytic Substitute for Gold(I) in Hydroaddition Reactions to Unsaturated Carbon-Carbon Bonds. Chemistry 2013; 19:8627-33. [DOI: 10.1002/chem.201300386] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Indexed: 11/10/2022]
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46
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Ying W, Herndon JW. Total synthesis of (+)-antofine and (-)-cryptopleurine. European J Org Chem 2013; 2013:10.1002/ejoc.201300200. [PMID: 24357989 PMCID: PMC3864684 DOI: 10.1002/ejoc.201300200] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Indexed: 12/26/2022]
Abstract
The tylophorine alkaloid anticancer compounds antofine and cryptopleurine have been synthesized in optically active form. Both syntheses employ optically pure α-amino acids as the starting materials, require only seven steps from known 2-ethynylpyrrolidine or 2-ethynylpiperidine derivatives, and are free of protecting groups. Key steps include an alkyne hydration and a chromium carbene complex based net [5+5]-cycloaddition step. Alkyne hydration was accompanied by racemization of the resulting β-aminoketone under most of the conditions examined, and successful minimization of this side reaction was achieved through careful pH control and choice of metal additive. Final ring closure involves a Bischler-Napieralski reaction using a carbamate (antofine) or urea (cryptopleurine) precursor.
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Affiliation(s)
- Weijiang Ying
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces, NM 88003 USA
| | - James W. Herndon
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces, NM 88003 USA
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47
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Oh CH, Kim JH, Oh BK, Park JR, Lee JH. Gold-Catalyzed Sequential Activation of Propargylic Carboxylates: A Facile Route to Benzoannulenes. Chemistry 2013; 19:2592-6. [DOI: 10.1002/chem.201204091] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Indexed: 01/02/2023]
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48
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50
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Roşca DA, Smith DA, Hughes DL, Bochmann M. A Thermally Stable Gold(III) Hydride: Synthesis, Reactivity, and Reductive Condensation as a Route to Gold(II) Complexes. Angew Chem Int Ed Engl 2012; 51:10643-6. [DOI: 10.1002/anie.201206468] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Indexed: 11/09/2022]
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