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Arnaut P, Bracho Pozsoni N, Nahra F, Tzouras NV, Nolan SP. Synthesis and reactivity of N-heterocyclic carbene (NHC) gold-fluoroalkoxide complexes. Dalton Trans 2024; 53:11952-11958. [PMID: 38958393 DOI: 10.1039/d4dt01402b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
We disclose a novel series of N-heterocyclic carbene (NHC) gold complexes with varied steric and electronic properties, bearing fluorinated alkoxide anions. Early reactivity studies involving these synthons, lead to the synthesis of various complexes of relevance to gold chemistry and catalysis.
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Affiliation(s)
- Pierre Arnaut
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000 Ghent, Belgium.
| | - Nestor Bracho Pozsoni
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000 Ghent, Belgium.
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000 Ghent, Belgium.
- Materials & Chemistry (MATCH) unit, VITO (Flemish Institute for Technological Research), Boeretang 200, 2400 Mol, Belgium
| | - Nikolaos V Tzouras
- 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.
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2
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Hidalgo N, Le Gac A, Mallet-Ladeira S, Bouhadir G, Bourissou D. Chemo-selective Stille-type coupling of acyl-chlorides upon phosphine-borane Au(i) catalysis. Chem Sci 2024; 15:5187-5191. [PMID: 38577365 PMCID: PMC10988615 DOI: 10.1039/d3sc06193k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/26/2024] [Indexed: 04/06/2024] Open
Abstract
Phosphine-boranes do not promote oxidative addition of acyl chlorides to gold, but the phosphine-borane gold triflimide complex [iPr2P(o-C6H4)BCy2]AuNTf2 was found to catalyze the coupling of acyl chlorides and aryl stannanes. The reaction involves aryl/chloride-bridged dinuclear gold(i) complexes as key intermediates, as substantiated by spectroscopic and crystallographic analyses. Similar to Pd(0)/Pd(ii)-catalyzed Stille coupling with phosphine-borane ligands, the gold-catalyzed variant shows complete chemoselectivity for acyl chlorides over aryl iodides and bromides, enabling straightforward access to halogenated aryl ketones.
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Affiliation(s)
- Nereida Hidalgo
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
- Departamento de Química Inorgánica, Universidad de Sevilla 41071 Sevilla Spain
| | - Arnaud Le Gac
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (FR 2599) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Ghenwa Bouhadir
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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3
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Schulz J, Sárosi MB, Hey‐Hawkins E. Exploring the Reactivity of B-Connected Carboranylphosphines in Frustrated Lewis Pair Chemistry: A New Frame for a Classic System. Chemistry 2022; 28:e202200531. [PMID: 35472172 PMCID: PMC9320892 DOI: 10.1002/chem.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 11/15/2022]
Abstract
The primary phosphines MesPH2 and tBuPH2 react with 9-iodo-m-carborane yielding B9-connected secondary carboranylphosphines 1,7-H2 C2 B10 H9 -9-PHR (R=2,4,6-Me3 C6 H2 (Mes; 1 a), tBu (1 b)). Addition of tris(pentafluorophenyl)borane (BCF) to 1 a, b resulted in the zwitterionic compounds 1,7-H2 C2 B10 H9 -9-PHR(p-C6 F4 )BF(C6 F5 )2 (2 a, b) through nucleophilic para substitution of a C6 F5 ring followed by fluoride transfer to boron. Further reaction with Me2 SiHCl prompted a H-F exchange yielding the zwitterionic compounds 1,7-H2 C2 B10 H9 -9-PHR(p-C6 F4 )BH(C6 F5 )2 (3 a, b). The reaction of 2 a, b with one equivalent of R'MgBr (R'=Me, Ph) gave the extremely water-sensitive frustrated Lewis pairs 1,7-H2 C2 B10 H9 -9-PR(p-C6 F4 )B(C6 F5 )2 (4 a, b). Hydrolysis of the B-C6 F4 bond in 4 a, b gave the first tertiary B-carboranyl phosphines with three distinct substituents, 1,7-H2 C2 B10 H9 -9-PR(p-C6 F4 H) (5 a, b). Deprotonation of the zwitterionic compounds 2 a, b and 3 a, b formed anionic phosphines [1,7-H2 C2 B10 H9 -9-PR(p-C6 F4 )BX(C6 F5 )2 ]- [DMSOH]+ (R=Mes, X=F (6 a), R=tBu, X=F (6 b); R=Mes, X=H (7 a), R=tBu, X=H (7 b)). Reaction of 2 a, b with an excess of Grignard reagents resulted in the addition of R' at the boron atom yielding the anions [1,7-H2 C2 B10 H9 -9-PR(p-C6 F4 )BR'(C6 F5 )2 ]- (R=Mes, R'=Me (8 a), R=tBu, R'=Me (8 b); R=Mes, R'=Ph (9 a), R=tBu, R'=Ph (9 b)) with [MgBr(Et2 O)n ]+ as counterion. The ability of the zwitterionic compounds 3 a, b to hydrogenate imines as well as the Brønsted acidity of 3 a were investigated.
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Affiliation(s)
- Jan Schulz
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic ChemistryJohannisallee 2904103LeipzigGermany
| | - Menyhárt B. Sárosi
- Leipzig University, Faculty of Chemistry and Mineralogy Wilhelm-Ostwald-Institute for Physical and Theoretical ChemistryLinnéstraße 204103LeipzigGermany
| | - Evamarie Hey‐Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic ChemistryJohannisallee 2904103LeipzigGermany
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4
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Martín J, Gómez‐Bengoa E, Genoux A, Nevado C. Synthesis of Cyclometalated Gold(III) Complexes via Catalytic Rhodium to Gold(III) Transmetalation. Angew Chem Int Ed Engl 2022; 61:e202116755. [DOI: 10.1002/anie.202116755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Jaime Martín
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Enrique Gómez‐Bengoa
- Department of Organic Chemistry I University of the Basque Country UPV/EHU Manuel Lardizabal 3 Donostia-San Sebastián Spain
| | - Alexandre Genoux
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Cristina Nevado
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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5
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Martín J, Gómez‐Bengoa E, Genoux A, Nevado C. Synthesis of Cyclometalated Gold(III) Complexes via Catalytic Rhodium to Gold(III) Transmetalation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jaime Martín
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Enrique Gómez‐Bengoa
- Department of Organic Chemistry I University of the Basque Country UPV/EHU Manuel Lardizabal 3 Donostia-San Sebastián Spain
| | - Alexandre Genoux
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Cristina Nevado
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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Voloshkin VA, Tzouras NV, Nolan SP. Recent advances in the synthesis and derivatization of N-heterocyclic carbene metal complexes. Dalton Trans 2021; 50:12058-12068. [PMID: 34519733 DOI: 10.1039/d1dt01847g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
N-heterocyclic carbene (NHC) metal complexes have gained an incredible amount of attention in the course of the last two decades and have become indispensable as an intricate part of a plethora of applications. The areas of their synthesis and derivatization are constantly evolving and bring new, more sustainable, cost-effective and simpler approaches to the design of existing and next generation catalysts and materials. This article provides an overview of the latest developments, focusing on those which have appeared during the last two years.
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Affiliation(s)
- Vladislav A Voloshkin
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
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7
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Suzuki A, Wu L, Lin Z, Yamashita M. Isomerization of a cis-(2-Borylalkenyl)Gold Complex via a Retro-1,2-Metalate Shift: Cleavage of a C-C/C-Si Bond trans to a C-Au Bond. Angew Chem Int Ed Engl 2021; 60:21007-21013. [PMID: 34288308 DOI: 10.1002/anie.202108530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Indexed: 01/27/2023]
Abstract
This manuscript describes the first example of an alkyne insertion to the Au-B bond of a di(o-tolyl)borylgold complex to afford a cis-2-borylalkenylgold complex, and its isomerization to result in interchanging substituents on the alkenyl carbon atom and the boron atom. The former reaction is the first example of an alkyne insertion to a Au-B bond. In the latter reaction, the regiochemistry of the isomerized alkenylgold products varied depending on the substituents. DFT calculations revealed the formation of gold alkynylborates as a common intermediate via a "retro-1,2-metalate shift", which can be considered as an anti-β-carbon/silicon elimination, and identified a subsequent 1,2-metalate shift as the regiochemistry-determining step. Relative energies of the transition states to each isomer and natural-bond-orbital (NBO) analyses were used to clearly rationalize the regiochemistry of the products.
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Affiliation(s)
- Akane Suzuki
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho Chikusa-ku, Nagoya, 464-8603, Aichi, Japan
| | - Linlin Wu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, Hong Kong
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho Chikusa-ku, Nagoya, 464-8603, Aichi, Japan
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8
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Suzuki A, Wu L, Lin Z, Yamashita M. Isomerization of a
cis
‐(2‐Borylalkenyl)Gold Complex via a Retro‐1,2‐Metalate Shift: Cleavage of a C−C/C−Si Bond
trans
to a C−Au Bond. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108530] [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]
Affiliation(s)
- Akane Suzuki
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Linlin Wu
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Zhenyang Lin
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
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9
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Theulier CA, García-Rodeja Y, Mallet-Ladeira S, Miqueu K, Bouhadir G, Bourissou D. Gold-to-Boron Aryl Transfer from a T-Shaped Phosphine–Borane Gold(I) Complex. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cyril A. Theulier
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Yago García-Rodeja
- CNRS/Université de Pau et des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux - IPREM UMR 5254, Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (UAR 2599), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Karinne Miqueu
- CNRS/Université de Pau et des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux - IPREM UMR 5254, Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Ghenwa Bouhadir
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), CNRS, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
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10
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Theulier CA, García-Rodeja Y, Saffon-Merceron N, Miqueu K, Bouhadir G, Bourissou D. 1,1-Phosphaboration of C[triple bond, length as m-dash]C and C[double bond, length as m-dash]C bonds at gold. Chem Commun (Camb) 2021; 57:347-350. [PMID: 33319216 DOI: 10.1039/d0cc06978g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phosphine-borane iPr2P(o-C6H4)BFXyl2 (Fxyl = 3,5-(F3C)2C6H3) was found to react with gold(i) alkynyl and vinyl complexes via an original 1,1-phosphaboration process. Zwitterionic complexes resulting from Au to B transmetallation have been authenticated as key intermediates. X-ray diffraction analyses show that the alkynyl-borate moiety remains pendant while the vinyl-borate is side-on coordinated to gold. According to DFT calculations, the phosphaboration then proceeds in a trans stepwise manner via decoordination of the phosphine, followed by anti nucleophilic attack to the π-CC bond activated by gold. The boron center acts as a relay and tether for the organic group.
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Affiliation(s)
- Cyril A Theulier
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
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11
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Kuo Y, Da Costa RC, Sparkes HA, Haddow MF, Owen GR. Palladium and Platinum Complexes Containing Diphenyl‐2‐(3‐methyl)indolylphosphine. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu‐Ying Kuo
- School of Chemistry University of Bristol Cantock's Close BS8 1TS Bristol UK
| | | | - Hazel. A. Sparkes
- School of Chemistry University of Bristol Cantock's Close BS8 1TS Bristol UK
| | - Mairi F. Haddow
- School of Chemistry University of Bristol Cantock's Close BS8 1TS Bristol UK
| | - Gareth R. Owen
- School of Chemistry University of Bristol Cantock's Close BS8 1TS Bristol UK
- School of Applied Science University of South Wales CF37 4AT Treforest UK
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12
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Hidalgo N, Moreno JJ, Pérez-Jiménez M, Maya C, López-Serrano J, Campos J. Tuning Activity and Selectivity during Alkyne Activation by Gold(I)/Platinum(0) Frustrated Lewis Pairs. Organometallics 2020; 39:2534-2544. [PMID: 33281270 PMCID: PMC7707620 DOI: 10.1021/acs.organomet.0c00330] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Indexed: 11/28/2022]
Abstract
Introducing transition metals into frustrated Lewis pair systems has attracted considerable attention in recent years. Here we report a selection of three metal-only frustrated systems based on Au(I)/Pt(0) combinations and their reactivity toward alkynes. We have inspected the activation of acetylene and phenylacetylene. The gold(I) fragments are stabilized by three bulky phosphines bearing terphenyl groups. We have observed that subtle modifications on the substituents of these ligands proved critical in controlling the regioselectivity of acetylene activation and the product distribution resulting from C(sp)-H cleavage of phenylacetylene. A mechanistic picture based on experimental observations and computational analysis is provided. As a result of the cooperative action of the two metals of the frustrated pairs, several uncommon heterobimetallic structures have been characterized.
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Affiliation(s)
- Nereida Hidalgo
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Juan José Moreno
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Celia Maya
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas
(IIQ), Departamento de Química Inorgánica and Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Consejo Superior de Investigaciones Científicas
(CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
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13
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Ingner FJL, Schmitt A, Orthaber A, Gates PJ, Pilarski LT. Mild and Efficient Synthesis of Diverse Organo-Au I -L Complexes in Green Solvents. CHEMSUSCHEM 2020; 13:2032-2037. [PMID: 31951303 PMCID: PMC7277043 DOI: 10.1002/cssc.201903415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/15/2020] [Indexed: 06/10/2023]
Abstract
An exceptionally mild and efficient method was developed for the preparation of (hetero)aryl-AuI -L complexes using ethanol or water as the reaction medium at room temperature and Ar-B(triol)K boronates as the transmetalation partner. The reaction does not need an exogeneous base or other additives, and quantitative yields can be achieved through a simple filtration as the only required purification method, which obviates considerable waste associated with alternative workup methods. A broad reaction scope was demonstrated with respect to both the L and (hetero)aryl ligands on product Au complexes. Despite the polar reaction medium, large polycyclic aromatic hydrocarbon units can be incorporated on the Au complexes in very good to excellent yields. The approach was demonstrated for the chemoselective manipulation of orthogonally protected aryl boronates to afford a new class of N-heterocyclic carbene-Au-aryl complexes. A mechanistic rationale was proposed.
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Affiliation(s)
| | | | - Andreas Orthaber
- Department of Chemistry—ÅngströmUppsala UniversityBOX 52375-120UppsalaSweden
| | - Paul J. Gates
- School of ChemistryUniversity of BristolCantock's Close, CliftonBristolBS8 1TSUK
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14
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Tzouras NV, Saab M, Janssens W, Cauwenbergh T, Van Hecke K, Nahra F, Nolan SP. Simple Synthetic Routes to N-Heterocyclic Carbene Gold(I)-Aryl Complexes: Expanded Scope and Reactivity. Chemistry 2020; 26:5541-5551. [PMID: 32077182 DOI: 10.1002/chem.202000876] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Indexed: 12/31/2022]
Abstract
The discovery of sustainable and scalable synthetic protocols leading to gold-aryl compounds bearing N-heterocyclic carbene (NHC) ligands sparked an investigation of their reactivity and potential utility as organometallic synthons. The use of a mild base and green solvents provide access to these compounds, starting from widely available boronic acids and various [Au(NHC)Cl] complexes, with reactions taking place under air, at room temperature and leading to high yields with unprecedented ease. One compound, (N,N'-bis[2,6-(di-isopropyl)phenyl]imidazol-2-ylidene)(4-methoxyphenyl)gold, ([Au(IPr)(4-MeOC6 H4 )]), was synthesized on a multigram scale and used to gauge the reactivity of this class of compounds towards C-H/N-H bonds and with various acids, revealing simple pathways to gold-based species that possess attractive properties as materials, reagents and/or catalysts.
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Affiliation(s)
- Nikolaos V Tzouras
- 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
| | - Wim Janssens
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Thibault Cauwenbergh
- 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
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
- Separation and Conversion Technology Unit, VITO (Flemish Institute for Technological Research), Boeretang 200, 2400, Mol, Belgium
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
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15
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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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16
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Seifert TP, Klein J, Gamer MT, Knöfel ND, Feuerstein TJ, Sarkar B, Roesky PW. Synthesis, Spectroscopy, and Redox Studies of Ferrocene-Functionalized Coinage Metal Alkyne Complexes. Inorg Chem 2019; 58:2997-3006. [DOI: 10.1021/acs.inorgchem.8b02873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tim P. Seifert
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraße 15, D-76131 Karlsruhe, Germany
| | - Johannes Klein
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34−36, D-14195 Berlin, Germany
| | - Michael T. Gamer
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraße 15, D-76131 Karlsruhe, Germany
| | - Nicolai D. Knöfel
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraße 15, D-76131 Karlsruhe, Germany
| | - Thomas J. Feuerstein
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraße 15, D-76131 Karlsruhe, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34−36, D-14195 Berlin, Germany
| | - Peter W. Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraße 15, D-76131 Karlsruhe, Germany
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17
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Ilya E, Kulikova L, Van der Eycken EV, Voskressensky L. Recent Advances in Phthalan and Coumaran Chemistry. ChemistryOpen 2018; 7:914-929. [PMID: 30498677 PMCID: PMC6250979 DOI: 10.1002/open.201800184] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Indexed: 12/12/2022] Open
Abstract
Oxygen-containing heterocycles are common in biologically active compounds. In particular, phthalan and coumaran cores are found in pharmaceuticals, organic electronics, and other useful medical and technological applications. Recent research has expanded the methods available for their synthesis. This Minireview presents recent advances in the chemistry of phthalans and coumarans, with the goal of overcoming synthetic challenges and facilitating the applications of phthalans and coumarans.
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Affiliation(s)
- Efimov Ilya
- Peoples' Friendship University of Russia (RUDN University)6 Miklukho-Maklaya StreetMoscow117198Russia
| | - Larisa Kulikova
- Peoples' Friendship University of Russia (RUDN University)6 Miklukho-Maklaya StreetMoscow117198Russia
| | - Erik V. Van der Eycken
- Peoples' Friendship University of Russia (RUDN University)6 Miklukho-Maklaya StreetMoscow117198Russia
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)Department of ChemistryKU Leuven Celestijnenlaan 200F3001LeuvenBelgium
| | - Leonid Voskressensky
- Peoples' Friendship University of Russia (RUDN University)6 Miklukho-Maklaya StreetMoscow117198Russia
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18
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Pérez-Iglesias M, Espinet P, Casares JA. Comparing Protonolysis and Transmetalation Reactions: Microcalorimetric Studies of C-Au I Bonds in [AuRL] Complexes. Inorg Chem 2018; 57:11193-11200. [PMID: 30106280 DOI: 10.1021/acs.inorgchem.8b01758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The protonolysis of C-Au bonds in [AuRL] organometallic complexes has been studied by calorimetry for 12 R groups. The experimental data have been combined with density functional theory calculations to obtain bond dissociation energy (BDE) values. The C-Au BDE values show a good correlation with the corresponding isolobal C-H BDE values. The heat released in the protonolysis of [AuRL] has also been measured for R = Ph and L = P(OPh)3, PPh3, PMe3, PCy3, and IPr, and these values strongly depend on the trans influence of L because of the mutual destabilization of the L-Au and Au-C bonds. The enthalpies of the transmetalation reaction [AuR(PPh3)] + SnIBu3 → [AuI(PPh3)] + SnRBu3 for seven R groups have been measured and compared with those of the corresponding [AuR(PPh3)] protonolysis.
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Affiliation(s)
- María Pérez-Iglesias
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , 47011 Valladolid , Spain
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , 47011 Valladolid , Spain
| | - Juan A Casares
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias , Universidad de Valladolid , 47011 Valladolid , Spain
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19
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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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20
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Maity A, Kölsch JC, Na H, Teets TS. Room temperature transmetallation from tris(pentafluorophenyl)borane to cyclometallated iridium(iii). Dalton Trans 2017; 46:11757-11767. [DOI: 10.1039/c7dt02540h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transmetallation with tris(pentafluorophenyl)borane produces bis-cyclometallated iridium complexes with a perfluorophenyl ancillary ligand.
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Affiliation(s)
- Ayan Maity
- Department of Chemistry
- University of Houston
- Houston
- USA
| | | | - Hanah Na
- Department of Chemistry
- University of Houston
- Houston
- USA
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21
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Affiliation(s)
- Brandon K. Tate
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Abraham J. Jordan
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - John Bacsa
- X-ray
Crystallography Center, Emory University, Atlanta, Georgia 30322, United States
| | - Joseph P. Sadighi
- School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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22
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Tšupova S, Rudolph M, Rominger F, Hashmi ASK. Synthesis and Properties of Hydrazino Amino Acyclic Carbenes of Gold(I), Platinum(II), Palladium(II) and Rhodium(III). Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600615] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Svetlana Tšupova
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science; King Abdulaziz University (KAU); 21589 Jeddah Saudi Arabia
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23
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Kumar R, Linden A, Nevado C. Evidence for Direct Transmetalation of AuIII–F with Boronic Acids. J Am Chem Soc 2016; 138:13790-13793. [DOI: 10.1021/jacs.6b07763] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, Zurich CH 8057, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, Zurich CH 8057, Switzerland
| | - Cristina Nevado
- Department of Chemistry, University of Zurich, Winterthurerstrasse
190, Zurich CH 8057, Switzerland
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24
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Pan F, Li XL, Chen XM, Shu C, Ruan PP, Shen CH, Lu X, Ye LW. Catalytic Ynamide Oxidation Strategy for the Preparation of α-Functionalized Amides. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01599] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Fei Pan
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Xin-Ling Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Xiu-Mei Chen
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Center
for Theoretical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Chao Shu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Peng-Peng Ruan
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Cang-Hai Shen
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Center
for Theoretical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State
Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory
for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen 361005, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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25
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Rekhroukh F, Estevez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Coordination–Insertion of Norbornene at Gold: A Mechanistic Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00040] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Feriel Rekhroukh
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
| | - Laura Estevez
- Université de Pau et des Pays de l’Adour, Institut
des Sciences Analytiques et de Physico-Chimie pour l’Environnement
et les Matériaux, Hélioparc, 2 Avenue du Président Angot, 64053 Pau cedex 09, France; CNRS, IPREM UMR 5254, F-64053 Pau, France
- Departamento
de Química Física, Facultade de Química, Universidade de Vigo,
Lagoas-Marcosende s/n, 36310 Vigo, Galicia, Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241), 205 Route de Narbonne, 31077 Toulouse, France
| | - Karinne Miqueu
- Université de Pau et des Pays de l’Adour, Institut
des Sciences Analytiques et de Physico-Chimie pour l’Environnement
et les Matériaux, Hélioparc, 2 Avenue du Président Angot, 64053 Pau cedex 09, France; CNRS, IPREM UMR 5254, F-64053 Pau, France
| | - Abderrahmane Amgoune
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
| | - Didier Bourissou
- Université de Toulouse, UPS, Laboratoire Hétérochimie
Fondamentale Appliquée, 118 route de Narbonne, F-31062 Toulouse, France; CNRS, LHFA UMR
5069, F-31062 Toulouse, France
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27
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Das A, Hua Y, Yousufuddin M, Cundari TR, Jeon J, Dias HVR. Gold‐Mediated Isomerization of Cyclooctyne to Ring Fused Olefinic Bicycles. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Animesh Das
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA, http://https://www.uta.edu/chemistry/faculty/directory/Dias.php
| | - Yuanda Hua
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA, http://https://www.uta.edu/chemistry/faculty/directory/Dias.php
| | - Muhammed Yousufuddin
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA, http://https://www.uta.edu/chemistry/faculty/directory/Dias.php
| | - Thomas R. Cundari
- Department of Chemistry, University of North Texas, Denton, Texas 76203, USA
| | - Junha Jeon
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA, http://https://www.uta.edu/chemistry/faculty/directory/Dias.php
| | - H. V. Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA, http://https://www.uta.edu/chemistry/faculty/directory/Dias.php
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28
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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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29
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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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30
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Espada MF, Campos J, López-Serrano J, Poveda ML, Carmona E. Methyl-, Ethenyl-, and Ethynyl-Bridged Cationic Digold Complexes Stabilized by Coordination to a Bulky Terphenylphosphine Ligand. Angew Chem Int Ed Engl 2015; 54:15379-84. [PMID: 26555404 DOI: 10.1002/anie.201508931] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Indexed: 11/10/2022]
Abstract
Reactions of the gold(I) triflimide complex [Au(NTf2 )(PMe2 Ar${{^{{\rm Dipp}{_{2}}}}}$)] (1) with the gold(I) hydrocarbyl species [AuR(PMe2 Ar${{^{{\rm Dipp}{_{2}}}}}$)] (2 a-2 c) enable the isolation of hydrocarbyl-bridged cationic digold complexes with the general composition [Au2 (μ-R)(PMe2 Ar${{^{{\rm Dipp}{_{2}}}}}$)2 ][NTf2 ], where Ar${{^{{\rm Dipp}{_{2}}}}}$=C6 H3 -2,6-(C6 H3 -2,6-iPr2 )2 and R=Me (3), CHCH2 (4), or CCH (5). Compound 3 is the first alkyl-bridged digold complex to be reported and features a symmetric [Au(μ-CH3 )Au](+) core. Complexes 4 and 5 are the first species of their kind that contain simple, unsubstituted vinyl and acetylide units, respectively. In the series of complexes 3-5, the bridging carbon atom systematically changes its hybridization from sp(3) to sp(2) and sp. Concomitant with this change, and owing to variations in the nature of the bonding within the [Au(μ-R)Au](+) unit, there is a gradual decrease in aurophilicity, that is, the strength of the Au⋅⋅⋅Au bonding interaction decreases. This change is illustrated by a monotonic increase in the Au-Au distance by approximately 0.3 Å from R=CH3 (2.71 Å) to CHCH2 (3.07 Å) and CCH (3.31 Å).
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Affiliation(s)
- María F Espada
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla (Spain)
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla (Spain). .,Present address: Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR (UK).
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla (Spain)
| | - Manuel L Poveda
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla (Spain)
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and, Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla (Spain).
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31
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Methyl-, Ethenyl-, and Ethynyl-Bridged Cationic Digold Complexes Stabilized by Coordination to a Bulky Terphenylphosphine Ligand. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508931] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Wilkins LC, Wieneke P, Newman PD, Kariuki BM, Rominger F, Hashmi ASK, Hansmann MM, Melen RL. Pathways to Functionalized Heterocycles: Propargyl Rearrangement using B(C6F5)3. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00753] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lewis C. Wilkins
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Philipp Wieneke
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Paul D. Newman
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Benson M. Kariuki
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Frank Rominger
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
- Chemistry
Department, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| | - Max M. Hansmann
- Organisch-Chemisches
Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer
Feld 270, 69120 Heidelberg, Germany
| | - Rebecca L. Melen
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
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33
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Melen RL, Wilkins LC, Kariuki BM, Wadepohl H, Gade LH, Hashmi ASK, Stephan DW, Hansmann MM. Diverging Pathways in the Activation of Allenes with Lewis Acids and Bases: Addition, 1,2-Carboboration, and Cyclization. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00546] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rebecca L. Melen
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Lewis C. Wilkins
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | - Benson M. Kariuki
- School
of Chemistry, Cardiff University, Main Building, Cardiff CF10 3AT, Cymru/Wales, U.K
| | | | | | - A. Stephen K. Hashmi
- Chemistry
Department, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| | - Douglas W. Stephan
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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34
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Affiliation(s)
- Douglas W. Stephan
- Department of Chemistry, University of Toronto, 80 St. George
Street, Toronto, Ontario, Canada M5S 3H6
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35
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Hirner JJ, Blum SA. NMR spectroscopy studies of electronic effects and equilibrium in the organogold-to-boron transmetalation reaction and studies towards its application to the alkoxyboration addition of boron-oxygen σ bonds to alkynes. Tetrahedron 2015; 71:4445-4449. [PMID: 30344348 DOI: 10.1016/j.tet.2015.04.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Electronic effects in the transmetalation of an aryl group from gold to boron were investigated by NMR spectroscopy. The transmetalation reaction is more facile for increasingly electrophilic boron reagents and is in equilibrium under certain conditions. Observed tetracoordinate boronate compounds suggest a two-step, associative transmetalation reaction mechanism in which the organogold complex first delivers a nucleophilic phenyl group to the empty p orbital of boron. For certain substrates, this tetracoordinate intermediate decomposes to the tricordinate, final transmetallation product, and in others this tricordinate species remains in equilibrium with a tetracoordinate anionic boron compound. Experimental and theoretical investigations into the extension of this transmetalation reaction from a mechanistic step in our previously reported intramolecular gold-catalyzed addition of boron-oxygen σ bonds across alkynes to an intermolecular variant are discussed.2014 Elsevier Ltd. All rights reserved.
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Affiliation(s)
- Joshua J Hirner
- University of California-Irvine, Department of Chemistry, 1102 Natural Science 2, Irvine, CA 92697-2025, USA
| | - Suzanne A Blum
- University of California-Irvine, Department of Chemistry, 1102 Natural Science 2, Irvine, CA 92697-2025, USA
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Devillard M, Nicolas E, Appelt C, Backs J, Mallet-Ladeira S, Bouhadir G, Slootweg JC, Uhl W, Bourissou D. Novel zwitterionic complexes arising from the coordination of an ambiphilic phosphorus-aluminum ligand to gold. Chem Commun (Camb) 2015; 50:14805-8. [PMID: 25319140 DOI: 10.1039/c4cc06992g] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Coordination of Mes2PC(=CHPh)AltBu2 to metal chlorides has been studied. Bridging P→M-Cl→Al coordinations were observed with Rh and Pd fragments, while chloride abstraction systematically occurred with gold. The resulting zwitterionic complexes have been fully characterized and analyzed by DFT calculations.
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Affiliation(s)
- Marc Devillard
- Université de Toulouse, UPS, LHFA, 118 route de Narbonne, 31062 Toulouse, France and CNRS, LHFA, UMR 5069, 31062 Toulouse, France.
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Braunschweig H, Radacki K, Shang R. Side-on coordination of boryl and borylene complexes to cationic coinage metal fragments. Chem Sci 2015; 6:2989-2996. [PMID: 29403636 PMCID: PMC5729409 DOI: 10.1039/c5sc00211g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/08/2015] [Indexed: 12/30/2022] Open
Abstract
The M-(η2-BMn) complex [(η5-C5H5)(OC)2Mn{μ-B(Cl)(tBu)Au(PPh3)}] (2) can be functionalized via halide substitution reactions to afford isostructural complexes [(η5-C5H5)(OC)2Mn{μ-B(R)(tBu)Au(PPh3)}] (R = Ph, CCPh and NCS). It also reacts with coinage metal complexes [MCl(PPh3)] (M = Au, Ag and Cu) in the presence of halide abstraction reagents to afford borylene-bridged heteromultinuclear complexes [{(η5-C5H5)(OC)2Mn}2{μ2-B(tBu)}2M][BArx4] (M = Au, Ag and Cu; Arx = 3,5-C6H3Cl2, 3,5-C6H3(CF3)2). Experimental characterization as well as computational studies revealed that these complexes are best viewed as transition metal borylene complexes side-on coordinated to monovalent coinage metal cations, thus representing the first boron analogs of Stone's alkylidyne-bridged multinuclear complexes.
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Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany .
| | - Krzysztof Radacki
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany .
| | - Rong Shang
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany .
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Browne AR, Deligonul N, Anderson BL, Zeller M, Hunter AD, Gray TG. Cyclometalated (boroxinato)gold(iii) complexes from arrested transmetalation. Chem Commun (Camb) 2015; 51:15800-3. [DOI: 10.1039/c5cc05200a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Luminescent metallaboroxines of gold(iii) form in self-assembly reactions from trifluoroacetato precursors and alkyl or arylboronic acids.
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Affiliation(s)
- Amberle R. Browne
- Department of Chemistry
- Case Western Reserve University
- 10900 Euclid Avenue, Cleveland
- USA
| | - Nihal Deligonul
- Department of Chemistry
- Case Western Reserve University
- 10900 Euclid Avenue, Cleveland
- USA
| | - Bryce L. Anderson
- Department of Chemistry and Chemical Biology
- Harvard University
- Cambridge
- USA
| | - Matthias Zeller
- Department of Chemistry
- Youngstown State University
- Youngstown
- USA
| | - Allen D. Hunter
- Department of Chemistry
- Youngstown State University
- Youngstown
- USA
| | - Thomas G. Gray
- Department of Chemistry
- Case Western Reserve University
- 10900 Euclid Avenue, Cleveland
- USA
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Drover MW, Schafer LL, Love JA. Isocyanate deinsertion from κ1-O amidates: facile access to perfluoroaryl rhodium(i) complexes. Dalton Trans 2015; 44:19487-93. [DOI: 10.1039/c5dt01981h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perfluorophenyl-subsituted amidates undergo unprecedented C6F5 migration to Rh(i) on heating, providing a new route to Rh-C6F5 organometallic fragments.
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Affiliation(s)
- Marcus W. Drover
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Laurel L. Schafer
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Jennifer A. Love
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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Rekhroukh F, Brousses R, Amgoune A, Bourissou D. Cationic Gold(III) Alkyl Complexes: Generation, Trapping, and Insertion of Norbornene. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409604] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Rekhroukh F, Brousses R, Amgoune A, Bourissou D. Cationic Gold(III) Alkyl Complexes: Generation, Trapping, and Insertion of Norbornene. Angew Chem Int Ed Engl 2014; 54:1266-9. [DOI: 10.1002/anie.201409604] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 11/09/2022]
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