1
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Bugarin A, Patil SA, Tran RQ, Marichev KO. Metal complexes of backbone-halogenated imidazol-2-ylidenes. Inorganica Chim Acta 2024; 572:122263. [PMID: 39156221 PMCID: PMC11326507 DOI: 10.1016/j.ica.2024.122263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
In this manuscript, literature reports on mono- and di-halogen (F, Cl, Br, and I) substituted at positions 4 or/and 4,5 imidazol-2-ylidene (NHC) metal complexes are discussed: particularly, their structural diversity with various metals (groups 6-13), important physicochemical properties, catalytic and medicinal/biological applications are reviewed. To our knowledge, there are no literature reports on group 4 and 5 metal complexes with this type of NHC ligands. Halogenated imidazol-2-ylidene metal complexes deserve special attention because halogens are the classic electron donating groups (mesomerically) in conjugated aromatic/heteroaromatic ring systems, but electron withdrawing inductively. However, they exhibit a significant electron withdrawing inductive effect, thus providing unique electronic properties. This is important for fine tuning of σ-donor abilities of the "carbenic" carbon of imidazol-2-ylidenes, which directly affect catalytic performance of their metal complexes. Other applications, advantages, and disadvantages of halogenated vs. unsubstituted imidazol-2-ylidene metal complexes are critically analyzed and summarized in this review.
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Affiliation(s)
- Alejandro Bugarin
- Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, FL, USA
| | - Siddappa A. Patil
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Kanakapura, Bangalore, Karnataka, India
| | - Ryan Q. Tran
- Department of Chemistry, Georgia State University, Atlanta, GA, USA
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2
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Gao P, Szostak M. Hydration Reactions Catalyzed by Transition Metal-NHC (NHC = N-Heterocyclic Carbene) Complexes. Coord Chem Rev 2023; 485:215110. [PMID: 37064328 PMCID: PMC10104449 DOI: 10.1016/j.ccr.2023.215110] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
The catalytic addition of water to unsaturated C-C or C-N π bonds represent one of the most important and environmentally sustainable methods to form C-O bonds for the production of synthetic intermediates, medicinal agents and natural products. The traditional acid-catalyzed hydration of unsaturated compounds typically requires strong acids or toxic mercury salts, which limits practical applications and presents safety and environmental concerns. Today, transition-metal-catalyzed hydration supported by NHC (NHC = N-heterocyclic carbene) ligands has attracted major attention. By rational design of ligands, choice of metals and counterions as well as mechanistic studies and the development of heterogeneous systems, major progress has been achieved for a broad range of hydration processes. In particular, the combination of NHC ligands with gold shows excellent reactivity compared with other catalytic systems; however, other systems based on silver, ruthenium, osmium, platinum, rhodium and nickel have also been discovered. Ancillary NHC ligands provide stabilization of transition metals and ensure high catalytic activity in hydration owing to their unique electronic and steric properties. NHC-Au(I) complexes are particularly favored for hydration of unsaturated hydrocarbons due to soft and carbophilic properties of gold. In this review, we present a comprehensive overview of hydration reactions catalyzed by transition metal-NHC complexes and their applications in catalytic hydration of different classes of π-substrates with a focus on the role of NHC ligands, types of metals and counterions.
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Affiliation(s)
- Pengcheng Gao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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3
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Efforts Towards Control of Regioselectivity in the Gold(I) Catalyzed Hydration of Internal Alkynes. Effects of Solvent, Temperature and Substrate on Regioselectivity. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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4
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Ibni Hashim I, Tzouras NV, Janssens W, Scattolin T, Bourda L, Bhandary S, Van Hecke K, Nolan SP, Cazin CSJ. Synthesis of Carbene‐Metal‐Amido (CMA) Complexes and Their Use as Precatalysts for the Activator‐Free, Gold‐Catalyzed Addition of Carboxylic Acids to Alkynes. Chemistry 2022; 28:e202201224. [DOI: 10.1002/chem.202201224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Ishfaq Ibni Hashim
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Wim Janssens
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Thomas Scattolin
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Via Marzolo 1 35131 Padova Italy
| | - Laurens Bourda
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Subhrajyoti Bhandary
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
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5
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Fernández-Canelas P, Barrio P, González JM. Merging gold catalysis and haloethynyl frames: emphasis on halide-shift processes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Ma Y, Ali HS, Hussein AA. A mechanistic study on the gold(i)-catalyzed cyclization of propargylic amide: revealing the impact of expanded-ring N-heterocyclic carbenes. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01617b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Density functional theory (DFT) was applied to understand the mechanistic pathway of the gold(i)-catalyzed cyclization of propargylic amide, and to reveal the impact of expanded-ring N-heterocyclic carbenes.
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Affiliation(s)
- Yumiao Ma
- BSJ Institute, Haidian, Beijing, 100084, People's Republic of China
- Hangzhou Yanqu Information Technology Co., Ltd., Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou City, Zhejiang Province, 310003, People's Republic of China
| | - Hafiz Saqib Ali
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Kings Buildings, EH9 3FJ Edinburgh, UK
| | - Aqeel A. Hussein
- Department of Pharmacy, College of Medicine, Komar University of Science and Technology, Sulaymaniyah, Kurdistan Region, Iraq
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7
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Unveiling the complexity of the dual gold(I) catalyzed intermolecular hydroamination of alkynes leading to vinylazoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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8
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Gauthier R, Tzouras NV, Zhang Z, Bédard S, Saab M, Falivene L, Van Hecke K, Cavallo L, Nolan SP, Paquin JF. Gold N-Heterocyclic Carbene Catalysts for the Hydrofluorination of Alkynes Using Hydrofluoric Acid: Reaction Scope, Mechanistic Studies and the Tracking of Elusive Intermediates. Chemistry 2021; 28:e202103886. [PMID: 34739142 DOI: 10.1002/chem.202103886] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 11/07/2022]
Abstract
An efficient and chemoselective methodology deploying gold-N-heterocyclic carbene (NHC) complexes as catalysts in the hydrofluorination of terminal alkynes using aqueous HF has been developed. Mechanistic studies shed light on an in situ generated catalyst, formed by the reaction of Brønsted basic gold pre-catalysts with HF in water, which exhibits the highest reactivity and chemoselectivity. The catalytic system has a wide alkyl substituted-substrate scope, and stoichiometric as well as catalytic reactions with tailor-designed gold pre-catalysts enable the identification of various gold species involved along the catalytic cycle. Computational studies aid in understanding the chemoselectivity observed through examination of key mechanistic steps for phosphine- and NHC-coordinated gold species bearing the triflate counterion and the elusive key complex bearing a bifluoride counterion.
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Affiliation(s)
- Raphaël Gauthier
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| | - Nikolaos V Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Ziyun Zhang
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Sandrine Bédard
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Laura Falivene
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Jean-François Paquin
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
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9
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Darmandeh H, Löffler J, Tzouras NV, Dereli B, Scherpf T, Feichtner K, Vanden Broeck S, Van Hecke K, Saab M, Cazin CSJ, Cavallo L, Nolan SP, Gessner VH. Au⋅⋅⋅H-C Hydrogen Bonds as Design Principle in Gold(I) Catalysis. Angew Chem Int Ed Engl 2021; 60:21014-21024. [PMID: 34313367 PMCID: PMC8518757 DOI: 10.1002/anie.202108581] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 01/15/2023]
Abstract
Secondary ligand-metal interactions are decisive in many catalytic transformations. While arene-gold interactions have repeatedly been reported as critical structural feature in many high-performance gold catalysts, we herein report that these interactions can also be replaced by Au⋅⋅⋅H-C hydrogen bonds without suffering any reduction in catalytic performance. Systematic experimental and computational studies on a series of ylide-substituted phosphines featuring either a PPh3 (Ph YPhos) or PCy3 (Cy YPhos) moiety showed that the arene-gold interaction in the aryl-substituted compounds is efficiently compensated by the formation of Au⋅⋅⋅H-C hydrogen bonds. The strongest interaction is found with the C-H moiety next to the onium center, which due to the polarization results in remarkably strong interactions with the shortest Au⋅⋅⋅H-C hydrogen bonds reported to date. Calorimetric studies on the formation of the gold complexes further confirmed that the Ph YPhos and Cy YPhos ligands form similarly stable complexes. Consequently, both ligands showed the same catalytic performance in the hydroamination, hydrophenoxylation and hydrocarboxylation of alkynes, thus demonstrating that Au⋅⋅⋅H-C hydrogen bonds are equally suited for the generation of highly effective gold catalysts than gold-arene interactions. The generality of this observation was confirmed by a comparative study between a biaryl phosphine ligand and its cyclohexyl-substituted derivative, which again showed identical catalytic performance. These observations clearly support Au⋅⋅⋅H-C hydrogen bonds as fundamental secondary interactions in gold catalysts, thus further increasing the number of design elements that can be used for future catalyst construction.
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Affiliation(s)
- Heidar Darmandeh
- Chair of Inorganic Chemistry IIFaculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Julian Löffler
- Chair of Inorganic Chemistry IIFaculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Busra Dereli
- Physical Sciences & Engineering Division (PSE)KAUST Catalysis Center (KCC)King Abdullah University of Science and Technology (KAUST)Thuwal23955-6900Saudi Arabia
| | - Thorsten Scherpf
- Chair of Inorganic Chemistry IIFaculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Kai‐Stephan Feichtner
- Chair of Inorganic Chemistry IIFaculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Sofie Vanden Broeck
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Luigi Cavallo
- Physical Sciences & Engineering Division (PSE)KAUST Catalysis Center (KCC)King Abdullah University of Science and Technology (KAUST)Thuwal23955-6900Saudi Arabia
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable ChemistryGhent UniversityKrijgslaan 281, S-39000GhentBelgium
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry IIFaculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
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10
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Darmandeh H, Löffler J, Tzouras NV, Dereli B, Scherpf T, Feichtner K, Vanden Broeck S, Van Hecke K, Saab M, Cazin CSJ, Cavallo L, Nolan SP, Gessner VH. Au⋅⋅⋅H−C Hydrogen Bonds as Design Principle in Gold(I) Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108581] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Heidar Darmandeh
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Julian Löffler
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Busra Dereli
- Physical Sciences & Engineering Division (PSE) KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Thorsten Scherpf
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Kai‐Stephan Feichtner
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Sofie Vanden Broeck
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Luigi Cavallo
- Physical Sciences & Engineering Division (PSE) KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
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11
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Escayola S, Poater J, Ramos M, Luque‐Urrutia JA, Duran J, Simon S, Solà M, Cavallo L, Nolan SP, Poater A. Chelation enforcing a dual gold configuration in the catalytic hydroxyphenoxylation of alkynes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sílvia Escayola
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica and IQTCUB Universitat de Barcelona Barcelona Spain
- ICREA Barcelona Spain
| | - Miguel Ramos
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | | | - Josep Duran
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Sílvia Simon
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal Saudi Arabia
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Ghent Belgium
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
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12
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Experimental and theoretical investigation of the cycloisomerization of N-propargylcarboxamide catalyzed by NHC-Au-X in green solvents. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Ruch AA, Ellison MC, Nguyen JK, Kong F, Handa S, Nesterov VN, Slaughter LM. Highly Sterically Encumbered Gold Acyclic Diaminocarbene Complexes: Overriding Electronic Control in Regiodivergent Gold Catalysis. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00776] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Aaron A. Ruch
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Matthew C. Ellison
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - John K. Nguyen
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Fanji Kong
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - Sachin Handa
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078,United States
| | - Vladimir N. Nesterov
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
| | - LeGrande M. Slaughter
- Department of Chemistry, University of North Texas, Denton, Texas 76203,United States
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14
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Babón JC, Esteruelas MA, López AM, Oñate E. Hydration of Aliphatic Nitriles Catalyzed by an Osmium Polyhydride: Evidence for an Alternative Mechanism. Inorg Chem 2021; 60:7284-7296. [PMID: 33904305 PMCID: PMC8892838 DOI: 10.1021/acs.inorgchem.1c00380] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The hexahydride OsH6(PiPr3)2 competently catalyzes the hydration
of aliphatic nitriles
to amides. The main metal species under the catalytic conditions are
the trihydride osmium(IV) amidate derivatives OsH3{κ2-N,O-[HNC(O)R]}(PiPr3)2, which have been isolated and fully characterized
for R = iPr and tBu. The rate of hydration is
proportional to the concentrations of the catalyst precursor, nitrile,
and water. When these experimental findings and density functional
theory calculations are combined, the mechanism of catalysis has been
established. Complexes OsH3{κ2-N,O-[HNC(O)R]}(PiPr3)2 dissociate the carbonyl group of the chelate to afford
κ1-N-amidate derivatives, which
coordinate the nitrile. The subsequent attack of an external water
molecule to both the C(sp) atom of the nitrile and the N atom of the
amidate affords the amide and regenerates the κ1-N-amidate catalysts. The attack is concerted and takes place
through a cyclic six-membered transition state, which involves Cnitrile···O–H···Namidate interactions. Before the attack, the free carbonyl
group of the κ1-N-amidate ligand
fixes the water molecule in the vicinity of the C(sp) atom of the
nitrile. The hexahydride complex OsH6(PiPr3)2 competently catalyzes the
hydration of aliphatic
nitriles to amides. Isolation of the main metal species under the
catalytic conditions, kinetics of hydration, and density functional
theory calculations support an alternative mechanism to those previously
reported.
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Affiliation(s)
- Juan C Babón
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Miguel A Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Ana M López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Zaragoza, Zaragoza 50009, Spain
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15
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Franchino A, Montesinos-Magraner M, Echavarren AM. Silver-Free Catalysis with Gold(I) Chloride Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200358] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Marc Montesinos-Magraner
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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16
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Synthesis of N-heterocyclic carbene gold(I) complexes. Nat Protoc 2021; 16:1476-1493. [PMID: 33504989 DOI: 10.1038/s41596-020-00461-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 11/09/2020] [Indexed: 01/30/2023]
Abstract
N-heterocyclic carbene gold(I) chloride and hydroxide complexes are regularly used as synthons to access various oxygen-, nitrogen- or carbon-bound gold complexes. They are also widely employed as efficient catalysts in addition reactions of hydroelements to unsaturated bonds and in several rearrangement and decarboxylation protocols. Here we describe the multigram synthesis of the most common mononuclear N-heterocyclic carbene gold(I) chloride complexes bearing the N,N'-bis-(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes), N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr) and N,N'-bis(2,6-bis(diphenylmethyl)-4-methylphenyl)imidazol-2-ylidene (IPr*) ligands. Their synthesis is achieved through the straightforward and practical weak base approach in a total time of 4-5 h. This straightforward methodology is conducted under air and possesses considerable advantages over alternative routes, such as the use of a sustainable reaction solvent, minimal amounts of a mild base and commercially available or easily obtained starting materials. Additionally, we describe the synthesis of the mononuclear gold(I) hydroxide complex bearing the IPr ligand, using the state-of-the-art method requiring 24 h. Finally, the improved synthesis of the dinuclear gold(I) hydroxide complex [{Au(IPr)}2(μ-OH)][BF4] is described (~3 h). All procedures can be performed by researchers with standard training and lead to high yields (76-99%) of microanalytically pure bench-stable materials.
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17
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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18
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Gómez‐Herrera A, Hashim II, Porré M, Nahra F, Cazin CSJ. Au(I)‐Catalyzed Hydration of 1‐Iodoalkynes Leading to α‐Iodoketones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Ishfaq Ibni Hashim
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Krijgslaan 281 – S3 9000 Gent Belgium
| | - Marre Porré
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Krijgslaan 281 – S3 9000 Gent Belgium
| | - Fady Nahra
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Krijgslaan 281 – S3 9000 Gent Belgium
- Separation and Conversion Technology Unit VITO (Flemish Institute for Technological Research) Boeretang 200 2400 Mol Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Krijgslaan 281 – S3 9000 Gent Belgium
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19
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Le Q, Dillon CC, Lichtenstein DA, Pisor JW, Closser KD, Muchalski H. Gold(I)-NHC-catalysed synthesis of benzofurans via migratory cyclization of 2-alkynylaryl ethers. Org Biomol Chem 2020; 18:8186-8191. [PMID: 33026395 DOI: 10.1039/d0ob01538e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Homogeneous cationic gold(i) catalysis emerged as a preferred avenue for the activation of alkenes and alkynes towards reactions with weak nucleophiles, especially in cyclization reactions. Here we report an intramolecular carboalkoxylation reaction of electron-rich benzyl ethers of 2-ethynylaryl phenols catalysed by a digold(i)-NHC complex. The reaction proceeds efficiently with low catalyst loading and the resulting 2,3-disubstituted benzofurans form in moderate to good yields. Based on the results of a cross-over experiment, spectroscopic data, and DFT calculations, we propose a mechanism that accounts for the observed chemo- and regioselectivity.
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Affiliation(s)
- Quang Le
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
| | - Christopher C Dillon
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
| | - Dana A Lichtenstein
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
| | - Jeremy W Pisor
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
| | - Kristina D Closser
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
| | - Hubert Muchalski
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
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20
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Fernández GA, Schiel MA, Silbestri GF. On the catalytic activation of water-soluble NHC-Au(I) complexes by sonication and microwave irradiation: A comparative assessment. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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22
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Ramos M, Poater J, Villegas‐Escobar N, Gimferrer M, Toro‐Labbé A, Cavallo L, Poater A. Phenoxylation of Alkynes through Mono‐ and Dual Activation Using Group 11 (Cu, Ag, Au) Catalysts. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Miguel Ramos
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica & IQTCUB Universitat de Barcelona Martí i Franquès 1–11 08028 Barcelona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Nery Villegas‐Escobar
- Laboratorio de Química Teórica Computacional (QTC) Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna 4860 7820436 Santiago Chile
| | - Martí Gimferrer
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
| | - Alejandro Toro‐Labbé
- Laboratorio de Química Teórica Computacional (QTC) Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna 4860 7820436 Santiago Chile
| | - Luigi Cavallo
- King Abdullah University of Science & Technology KAUST Catalysis Center (KCC) 23955–6900 Thuwal Saudi Arabia
| | - Albert Poater
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
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23
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Selective Hydration of Nitriles to Corresponding Amides in Air with Rh(I)-N-Heterocyclic Complex Catalysts. Catalysts 2020. [DOI: 10.3390/catal10010125] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A new synthetic method for obtaining [RhCl(cod)(NHC)] complexes (1–4) (cod = η4-1,5-cyclooctadiene, NHC = N-heterocyclic carbene: IMes, SIMes, IPr, and SIPr, respectively) is reported together with the catalytic properties of 1–4 in nitrile hydration. In addition to the characterization of 1–4 in solution by 13C NMR spectroscopy, the structures of complexes 3, and 4 have been established also in the solid state with single-crystal X-ray diffraction analysis. The Rh(I)-NHC complexes displayed excellent catalytic activity in hydration of aromatic nitriles (up to TOF = 276 h−1) in water/2-propanol (1/1 v/v) mixtures in air.
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24
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A. C. A. Bayrakdar T, Scattolin T, Ma X, Nolan SP. Dinuclear gold(i) complexes: from bonding to applications. Chem Soc Rev 2020; 49:7044-7100. [DOI: 10.1039/d0cs00438c] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The last two decades have seen a veritable explosion in the use of gold(i) complexes bearing N-heterocyclic carbene (NHC) and phosphine (PR3) ligands.
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Affiliation(s)
| | - Thomas Scattolin
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Xinyuan Ma
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
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25
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Cervantes‐Reyes A, Rominger F, Rudolph M, Hashmi ASK. Gold(I) Complexes Stabilized by Nine- and Ten-Membered N-Heterocyclic Carbene Ligands. Chemistry 2019; 25:11745-11757. [PMID: 31310385 PMCID: PMC6852534 DOI: 10.1002/chem.201902458] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Indexed: 02/02/2023]
Abstract
Nine- and ten-membered N-heterocyclic carbene (NHC) ligands have been developed and for the first time their gold(I) complexes were synthesized. The protonated NHC pro-ligands 2 a-h were prepared by the reaction of readily available N,N'-diarylformamidines with bis-electrophilic building blocks, followed by anion exchange. In situ deprotonation of the tetrafluoroborates 2 a-h with tBuOK in the presence of AuCl(SMe2 ) provided fast access to NHC-gold(I) complexes 3-10. These new NHC-gold(I) complexes show very good catalytic activity in a cycloisomerization reaction (0.1 mol % catalyst loading, up to 100 % conversion) and their solid-state structures reveal high steric hindrance around the metal atom (%Vbur up to 53.0) which is caused by their expanded-ring architecture.
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Affiliation(s)
| | - Frank Rominger
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Matthias Rudolph
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia
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26
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Nomiya K, Murara Y, Iwasaki Y, Arai H, Yoshida T, Chikaraishi Kasuga N, Matsubara T. Highly active, homogeneous catalysis by polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes for hydration of diphenylacetylene. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.02.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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27
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Kuang J, Zhou T, You T, Chen J, Su C, Xia Y. Facile access to 1,3-diketones by gold(i)-catalyzed regioselective hydration of ynones. Org Biomol Chem 2019; 17:3940-3944. [DOI: 10.1039/c9ob00494g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A regioselective hydration of ynones was developed via gold catalysis, providing a simple, mild, and efficient method for the synthesis of a variety of 1,3-diketone derivatives.
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Affiliation(s)
- Jinqiang Kuang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
| | - Tao Zhou
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Tingjie You
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Chenliang Su
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
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28
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Baron M, Battistel E, Tubaro C, Biffis A, Armelao L, Rancan M, Graiff C. Single-Step Synthesis of Dinuclear Neutral Gold(I) Complexes with Bridging Di(N-heterocyclic carbene) Ligands and Their Catalytic Performance in Cross Coupling Reactions and Alkyne Hydroamination. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00531] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Edoardo Battistel
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Andrea Biffis
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
- ICMATE-CNR, Via F. Marzolo 1, 35131 Padova, Italy
| | - Marzio Rancan
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via F. Marzolo 1, 35131 Padova, Italy
- ICMATE-CNR, Via F. Marzolo 1, 35131 Padova, Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
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29
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De Canck E, Nahra F, Bevernaege K, Vanden Broeck S, Ouwehand J, Maes D, Nolan SP, Van Der Voort P. PMO-Immobilized Au I -NHC Complexes: Heterogeneous Catalysts for Sustainable Processes. Chemphyschem 2018; 19:430-436. [PMID: 29115710 DOI: 10.1002/cphc.201701102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Indexed: 12/14/2022]
Abstract
A stable periodic mesoporous organosilica (PMO) with accessible sulfonic acid functionalities is prepared via a one-pot-synthesis and is used as solid support for highly active catalysts, consisting of gold(I)-N-heterocyclic carbene (NHC) complexes. The gold complexes are successfully immobilized on the nanoporous hybrid material via a straightforward acid-base reaction with the corresponding [Au(OH)(NHC)] synthon. This catalyst design strategy results in a boomerang-type catalyst, allowing the active species to detach from the surface to perform the catalysis and then to recombine with the solid after all the starting material is consumed. This boomerang behavior is assessed in the hydration of alkynes. The tested catalysts were found to be active in the latter reaction, and after an acidic work-up, the IPr*-based gold catalyst can be recovered and then reused several times without any loss in efficiency.
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Affiliation(s)
- Els De Canck
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Fady Nahra
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Kevin Bevernaege
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium.,Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Sofie Vanden Broeck
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Judith Ouwehand
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Diederick Maes
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium.,Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
| | - Pascal Van Der Voort
- Center for Ordered Materials, Organometallics and Catalysis (COMOC), Department of Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-Building S3, 9000, Ghent, Belgium
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30
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Porchia M, Pellei M, Marinelli M, Tisato F, Del Bello F, Santini C. New insights in Au-NHCs complexes as anticancer agents. Eur J Med Chem 2018; 146:709-746. [PMID: 29407992 DOI: 10.1016/j.ejmech.2018.01.065] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 01/18/2018] [Accepted: 01/19/2018] [Indexed: 01/03/2023]
Abstract
Within the research field of antitumor metal-based agents alternative to platinum drugs, gold(I/III) coordination complexes have always been in the forefront due mainly to the familiarity of medicinal chemists with gold compounds, whose application in medicine goes back in the ancient times, and to the rich chemistry shown by this metal. In the last decade, N-heterocyclic carbene ligands (NHC), a class of ligands that largely resembles the chemical properties of phosphines, became of interest for gold(I) medicinal applications, and since then, the research on NHC-gold(I/III) coordination complexes as potential antiproliferative agents boosted dramatically. Different classes of gold(I/III)-NHC complexes often showed an outstanding in vitro antiproliferative activity, however up to now very few in vivo data have been reported to corroborate the in vitro results. This review summarizes all achievements in the field of gold (I/III) complexes comprising NHC ligands proposed as potential antiproliferative agents in the period 2004-2016, and critically analyses biological data (mainly IC50 values) in relation to the chemical structures of Au compounds. The state of art of the in vivo studies so far described is also reported.
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Affiliation(s)
| | - Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Marika Marinelli
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | | | - Fabio Del Bello
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy
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31
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Nelson DJ, Nolan SP. Hydroxide complexes of the late transition metals: Organometallic chemistry and catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.10.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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32
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Veenboer RMP, Collado A, Dupuy S, Lebl T, Falivene L, Cavallo L, Cordes DB, Slawin AMZ, Cazin CSJ, Nolan SP. Inner-Sphere versus Outer-Sphere Coordination of BF4– in a NHC-Gold(I) Complex. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00345] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Richard M. P. Veenboer
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Alba Collado
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, United Kingdom
| | - Stéphanie Dupuy
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Tomas Lebl
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Laura Falivene
- Physical
Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Luigi Cavallo
- Physical
Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - David B. Cordes
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, United Kingdom
| | - Catherine S. J. Cazin
- Department
of Inorganic and Physical Chemistry, Ghent University, Building S3, Krijgslaan 281, 9000 Gent, Belgium
| | - Steven P. Nolan
- Department
of Inorganic and Physical Chemistry, Ghent University, Building S3, Krijgslaan 281, 9000 Gent, Belgium
- Department
of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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33
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Kusakabe T, Ito Y, Kamimura M, Shirai T, Takahashi K, Mochida T, Kato K. Palladium(II) Bis(oxazoline) Complexes that Catalyze the Hydration of Alkynes. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700138] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Taichi Kusakabe
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Yoichi Ito
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Misato Kamimura
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Tsukasa Shirai
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Keisuke Takahashi
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Tomoyuki Mochida
- Department of Chemistry; Faculty of Science; Kobe University; Rokkodai, Nada Kobe 657-8501 Japan
| | - Keisuke Kato
- Faculty of Pharmaceutical Sciences; Toho University; 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
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34
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Marien N, Verniest G. Gold(I)-catalyzed synthesis of dihydrodibenzoquinolizinium salts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Niels Marien
- Research Group of Organic Chemistry; Department of Chemistry and Department of Bio-engineering Sciences; Faculty of Science and Bio-engineering Sciences; Vrije Universiteit Brussel (VUB); Pleinlaan 2, B- 1050 Brussels Belgium
| | - Guido Verniest
- Research Group of Organic Chemistry; Department of Chemistry and Department of Bio-engineering Sciences; Faculty of Science and Bio-engineering Sciences; Vrije Universiteit Brussel (VUB); Pleinlaan 2, B- 1050 Brussels Belgium
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35
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Casals-Cruañas È, González-Belman OF, Besalú-Sala P, Nelson DJ, Poater A. The preference for dual-gold(i) catalysis in the hydro(alkoxylation vs. phenoxylation) of alkynes. Org Biomol Chem 2017; 15:6416-6425. [DOI: 10.1039/c7ob01457k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dinuclear gold complexes and their use in catalysis have received significant recent attention, but there are few critical comparisons of mono- versus dual gold-catalysed pathways.
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Affiliation(s)
- Èric Casals-Cruañas
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - Oscar F. González-Belman
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - Pau Besalú-Sala
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - David J. Nelson
- WestCHEM Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Albert Poater
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
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36
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Brill M, Nahra F, Gómez-Herrera A, Zinser C, Cordes DB, Slawin AMZ, Nolan SP. Gold-N-Heterocyclic Carbene Complexes of Mineral Acids. ChemCatChem 2016. [DOI: 10.1002/cctc.201601290] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marcel Brill
- EaStCHEM School of Chemistry; University of St Andrews; St Andrews KY16 9ST UK
| | - Fady Nahra
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
| | | | - Caroline Zinser
- EaStCHEM School of Chemistry; University of St Andrews; St Andrews KY16 9ST UK
| | - David B. Cordes
- EaStCHEM School of Chemistry; University of St Andrews; St Andrews KY16 9ST UK
| | | | - Steven P. Nolan
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281-S3 9000 Gent Belgium
- Chemistry Department, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
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37
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Weerasiri KC, Chen D, Wozniak DI, Dobereiner GE. Internal Alkyne Regio- and Chemoselectivity using a Zwitterionic N-Heterocyclic Carbene Gold Catalyst in a Silver-Free Alkyne Hydration Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kushan C. Weerasiri
- Department of Chemistry; Temple University; Philadelphia Pennsylvania 19122 USA
| | - Danmin Chen
- Department of Chemistry; Temple University; Philadelphia Pennsylvania 19122 USA
| | - Derek I. Wozniak
- Department of Chemistry; Temple University; Philadelphia Pennsylvania 19122 USA
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38
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Jans ACH, Gómez-Suárez A, Nolan SP, Reek JNH. A Switchable Gold Catalyst by Encapsulation in a Self-Assembled Cage. Chemistry 2016; 22:14836-14839. [PMID: 27542162 PMCID: PMC5053284 DOI: 10.1002/chem.201603162] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Indexed: 11/19/2022]
Abstract
Dinuclear gold complexes have the ability to interact with one or more substrates in a dual-activation mode, leading to different reactivity and selectivity than their mononuclear relatives. In this contribution, this difference was used to control the catalytic properties of a gold-based catalytic system by site-isolation of mononuclear gold complexes by selective encapsulation. The typical dual-activation mode is prohibited by this catalyst encapsulation, leading to typical behavior as a result of mononuclear activation. This strategy can be used as a switch (on/off) for a catalytic reaction and also permits reversible control over the product distribution during the course of a reaction.
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Affiliation(s)
- Anne C H Jans
- Homogeneous, Bioinspired and Supramolecular Catalysis, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, the Netherlands
| | | | - Steven P Nolan
- Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 - S3, 9000, Gent, Belgium
- Chemistry Department, College of Science, King Saud university PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Joost N H Reek
- Homogeneous, Bioinspired and Supramolecular Catalysis, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, the Netherlands.
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39
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Gatto M, Belanzoni P, Belpassi L, Biasiolo L, Del Zotto A, Tarantelli F, Zuccaccia D. Solvent-, Silver-, and Acid-Free NHC-Au-X Catalyzed Hydration of Alkynes. The Pivotal Role of the Counterion. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01626] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Mattia Gatto
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Paola Belanzoni
- Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
- Istituto
di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Leonardo Belpassi
- Istituto
di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Luca Biasiolo
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Alessandro Del Zotto
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Francesco Tarantelli
- Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
- Istituto
di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Daniele Zuccaccia
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
- Istituto
di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), c/o Dipartimento
di Chimica, Biologia e Biotecnologie, Universita’ degli Studi di Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
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40
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Sahani RL, Liu RS. Gold-catalyzed [4+3] and [4+4]-annulation reactions of t-butyl propiolate derivatives with epoxides and oxetanes for the construction of 1,4-dioxepane and 1,5-dioxocane cores. Chem Commun (Camb) 2016; 52:7482-5. [PMID: 27198065 DOI: 10.1039/c6cc02124g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gold-catalyzed [4+n]-annulations (n = 3, 4) of tert-butyl propiolate derivatives with epoxides or oxetanes proceed smoothly to yield seven- or eight-membered oxacyclic products efficiently. In the context of the [4+3]-annulations, product analysis reveals a retention of stereochemistry upon the intramolecular SN2 attack of an epoxide. We also report the [4+5]-annulation between one tert-butyl propiolate and γ-lactol, to manifest the utility toward medium-sized rings.
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Affiliation(s)
- Rajkumar Lalji Sahani
- Department of Chemistry, National Tsing-Hua University, 101, Sec. 2, Kuang-Fu Rd. Hsinchu, 30013, Taiwan, Republic of China.
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41
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Arai H, Yoshida T, Nagashima E, Hatayama A, Horie S, Matsunaga S, Nomiya K. Silver- and Acid-Free Catalysis by Polyoxometalate-Assisted Phosphanegold(I) Species for Hydration of Diphenylacetylene. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hidekazu Arai
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Takuya Yoshida
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Eri Nagashima
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Akifumi Hatayama
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Shogo Horie
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Satoshi Matsunaga
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Kenji Nomiya
- Department
of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
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42
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Du C, Wang X, Jin S, Shi H, Li Y, Pang Y, Liu Y, Cheng M, Guo C, Liu Y. Investigation of Meyer-Schuster Rearrangement Promoted by a Samarium(III) Triflate/N-Fluorobenzenesulfonimide Lewis Acid System. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600124] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chuan Du
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Xiaoyu Wang
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Shengfei Jin
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Hui Shi
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yangming Li
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yadong Pang
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Chun Guo
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
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43
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Mir R, Dudding T. A Au(I)-Precatalyst with a Cyclopropenium Counterion: An Unusual Ion Pair. J Org Chem 2016; 81:2675-9. [PMID: 26889777 DOI: 10.1021/acs.joc.6b00241] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The synthesis and X-ray crystal structure of a novel Au(I)-precatalyst applied to intermolecular alkyne hydroamination is reported. Density functional theory (DFT) calculations revealed the cyclopropenium counterion of this Au(I)-precatalyst imparts stability through H-bonding and other noncovalent interactions.
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Affiliation(s)
- Roya Mir
- Department of Chemistry, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, ON, Canada
| | - Travis Dudding
- Department of Chemistry, Brock University , 1812 Sir Isaac Brock Way, St. Catharines, ON, Canada
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44
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Al-Majid AM, Yousuf S, Choudhary MI, Nahra F, Nolan SP. Gold-NHC complexes as potent bioactive compounds. ChemistrySelect 2016. [DOI: 10.1002/slct.201600009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Abdullah M. Al-Majid
- Department of Chemistry; College of Science; King Saud University, P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Sammer Yousuf
- H.E.J. Research Institute of Chemistry; International Center for Chemical and Biological Sciences; University of Karachi Karachi- 75270 Pakistan
| | - M. Iqbal Choudhary
- Department of Chemistry; College of Science; King Saud University, P. O. Box 2455 Riyadh 11451 Saudi Arabia
- H.E.J. Research Institute of Chemistry; International Center for Chemical and Biological Sciences; University of Karachi Karachi- 75270 Pakistan
| | - Fady Nahra
- Universiteit Gent; Department of Inorganic and Physical Chemistry; Krijgslaan 281, S-3 B-9000 Ghent Belgium
| | - Steven P. Nolan
- Department of Chemistry; College of Science; King Saud University, P. O. Box 2455 Riyadh 11451 Saudi Arabia
- Universiteit Gent; Department of Inorganic and Physical Chemistry; Krijgslaan 281, S-3 B-9000 Ghent Belgium
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45
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Kang YW, Cho YJ, Han SJ, Jang HY. Tunable and Diastereoselective Brønsted Acid Catalyzed Synthesis of β-Enaminones. Org Lett 2016; 18:272-5. [DOI: 10.1021/acs.orglett.5b03445] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ye-Won Kang
- Department
of Energy Systems Research, Ajou University, Suwon 443-749, Korea
| | - Yu Jin Cho
- Department
of Energy Systems Research, Ajou University, Suwon 443-749, Korea
| | - Seung Jin Han
- Department
of Energy Systems Research, Ajou University, Suwon 443-749, Korea
| | - Hye-Young Jang
- Department
of Energy Systems Research, Ajou University, Suwon 443-749, Korea
- Korea Carbon Capture & Sequestration R&D Center, Deajeon 305-343, Korea
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46
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Gómez-Suárez A, Oonishi Y, Martin AR, Vummaleti SVC, Nelson DJ, Cordes DB, Slawin AMZ, Cavallo L, Nolan SP, Poater A. On the Mechanism of the Digold(I)-Hydroxide-Catalysed Hydrophenoxylation of Alkynes. Chemistry 2015; 22:1125-32. [DOI: 10.1002/chem.201503097] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Adrián Gómez-Suárez
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
| | - Yoshihiro Oonishi
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
- Faculty of Pharmaceutical Sciences; Hokkaido University; Sapporo 060-0812 Japan
| | - Anthony R. Martin
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
- Institut de Chimie de Nice; UMR 7272; Université de Nice Sophia Antipolis, CNRS; Parc Valrose 06108 Nice cedex 2 France
| | - Sai V. C. Vummaleti
- KAUST Catalysis Center; Physical Sciences and Engineering Division; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
| | - David J. Nelson
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
- WestCHEM Department of Pure & Applied Chemistry; University of Strathclyde, Thomas Graham Building; 295 Cathedral Street Glasgow G1 1XL UK
| | - David B. Cordes
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry; University of St. Andrews; North Haugh St. Andrews, Fife KY16 9ST UK
| | - Luigi Cavallo
- KAUST Catalysis Center; Physical Sciences and Engineering Division; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
| | - Steven P. Nolan
- Chemistry Department; College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona, Catalonia Spain
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47
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Dupuy S, Gasperini D, Nolan SP. Highly Efficient Gold(I)-Catalyzed Regio- and Stereoselective Hydrocarboxylation of Internal Alkynes. ACS Catal 2015; 5:6918-6921. [PMID: 29291135 PMCID: PMC5745071 DOI: 10.1021/acscatal.5b02090] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/09/2015] [Indexed: 11/29/2022]
Abstract
![]()
We report the highly efficient gold-catalyzed
hydrocarboxylation
of internal alkynes that operates under solvent- and silver-free conditions.
This new, simple, and eco-friendly protocol allows for the synthesis
of a wide variety of functionalized aryl and alkyl enol esters in
high yields, with Z-stereospecificity and good regioselectivities
and without the requirement for purification by chromatography. This
process represents an expedient, operationally simple method for the
synthesis of enol esters.
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Affiliation(s)
- Stéphanie Dupuy
- EaStCHEM
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, U.K
| | - Danila Gasperini
- EaStCHEM
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, U.K
| | - Steven P. Nolan
- Chemistry
Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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48
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Collado A, Patrick SR, Gasperini D, Meiries S, Nolan SP. Influence of bulky yet flexible N-heterocyclic carbene ligands in gold catalysis. Beilstein J Org Chem 2015; 11:1809-14. [PMID: 26664600 PMCID: PMC4661005 DOI: 10.3762/bjoc.11.196] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 09/04/2015] [Indexed: 01/05/2023] Open
Abstract
Three new Au(I) complexes of the formula [Au(NHC)(NTf2)] (NHC = N-heterocyclic carbene) bearing bulky and flexible ligands have been synthesised. The ligands studied are IPent, IHept and INon which belong to the ‘ITent’ (‘Tent’ for ‘tentacular’) family of NHC derivatives. The effect of these ligands in gold-promoted transformations has been investigated.
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Affiliation(s)
- Alba Collado
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Scott R Patrick
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Danila Gasperini
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Sebastien Meiries
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Steven P Nolan
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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49
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Liu X, Liu L, Wang Z, Fu X. Visible light promoted hydration of alkynes catalyzed by rhodium(III) porphyrins. Chem Commun (Camb) 2015; 51:11896-8. [PMID: 26111988 DOI: 10.1039/c5cc04015a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Visible light promoted hydration of a wide scope of alkynes to ketones catalyzed by rhodium(III) porphyrin complexes was described. The key intermediate β-carbonyl alkyl was observed and independently synthesized. The rate of photolysis is over two orders of magnitude faster than that of the thermal process.
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Affiliation(s)
- Xu Liu
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
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50
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Lu Z, Han J, Hammond GB, Xu B. Revisiting the Influence of Silver in Cationic Gold Catalysis: A Practical Guide. Org Lett 2015; 17:4534-7. [DOI: 10.1021/acs.orglett.5b02224] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhichao Lu
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Junbin Han
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Gerald B. Hammond
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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