1
|
León F, García-Rodeja Y, Mallet-Ladeira S, Miqueu K, Szalóki G, Bourissou D. Catechol/ o-benzoquinone exchange at gold(iii). Chem Sci 2024:d4sc04374j. [PMID: 39309082 PMCID: PMC11414447 DOI: 10.1039/d4sc04374j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Accepted: 09/15/2024] [Indexed: 09/25/2024] Open
Abstract
Although gold(iii) chemistry has tremendously progressed in the past 2 decades, gold(iii) catecholate complexes remain extremely scarce and underdeveloped. Upon preparation and full characterization of P^C-cyclometalated gold(iii) complexes, we serendipitously uncovered an intriguing catechol exchange process at gold(iii). Electron-rich catecholates turned out to be readily displaced by electron-poor o-benzoquinones. DFT calculations revealed an original path for this transformation involving two consecutive Single Electron Transfer events between the catecholate and o-benzoquinone moieties while gold maintains its +III oxidation state. This catechol/o-benzoquinone exchange at gold(iii) represents a new path for the exchange of X-type ligands at transition metals.
Collapse
Affiliation(s)
- Félix León
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) 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
| | - György Szalóki
- 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
| |
Collapse
|
2
|
Phearman AS, Ardon Y, Goldberg KI. Insertion of Molecular Oxygen into a Gold(III)-Hydride Bond. J Am Chem Soc 2024; 146:4045-4059. [PMID: 38290523 DOI: 10.1021/jacs.3c12285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The use of molecular oxygen as an oxidant in chemical synthesis has significant environmental and economic benefits, and it is widely used as such in large-scale industrial processes. However, its adoption in highly selective homogeneous catalytic transformations, particularly to produce oxygenated organics, has been hindered by our limited understanding of the mechanisms by which O2 reacts with transition metals. Of particular relevance are the mechanisms of the reactions of oxygen with late transition metal hydrides as these metal centers are better poised to release oxygenated products. Homogeneous catalysis with gold complexes has markedly increased, and herein we report the synthesis and full characterization of a rare AuIII-H, supported by a diphosphine pincer ligand (tBuPCP = 2,6-bis(di-tert-butylphosphinomethyl)benzene). [(tBuPCP)AuIII-H]+ was found to cleanly react with molecular oxygen to yield a stable AuIII-OOH complex that was also fully characterized. Extensive kinetic studies on the reaction via variable temperature NMR spectroscopy have been completed, and the results are consistent with an autoaccelerating radical chain mechanism. The observed kinetic behavior exhibits similarities to that of previously reported PdII-H and PtIV-H reactions with O2 but is not fully consistent with any known O2 insertion mechanism. As such, this study contributes to the nascent fundamental understanding of the mechanisms of aerobic oxidation of late metal hydrides.
Collapse
Affiliation(s)
- Alexander S Phearman
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Yotam Ardon
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Karen I Goldberg
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
3
|
Holmsen MSM, Nova A, Tilset M. Cyclometalated (N,C) Au(III) Complexes: The Impact of Trans Effects on Their Synthesis, Structure, and Reactivity. Acc Chem Res 2023; 56:3654-3664. [PMID: 38051910 PMCID: PMC10734256 DOI: 10.1021/acs.accounts.3c00595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 12/07/2023]
Abstract
ConspectusThe early years of gold catalysis were dominated by Au(I) complexes and inorganic Au(III) salts. Thanks to the development of chelating ligands, more sophisticated Au(III) complexes can now be easily prepared and handled. The choice of the ancillary ligand has great consequences for the synthesis, properties, and reactivity of the Au(III) complex in question. Among the major factors controlling reactivity are the "trans effect" and the "trans influence" that a ligand imparts at the ligand trans to itself. The kinetic trans effect manifests itself with an increased labilization of the ligand trans to a given ligand and arises from an interplay between ground-state and transition-state effects. The term trans influence, on the other hand, is a ground-state effect only, describing the tendency of a given ligand to weaken the metal-ligand bond trans to itself. Herein, we will use the term "trans effect" to describe both the kinetic and the thermodynamic properties, whereas the term "trans influence" will refer only to thermodynamic properties. We will describe how these trans effects strongly impact the chemistry of the commonly encountered cyclometalated (N,C) Au(III) complexes, a class of complexes we have studied for more than a decade. We found that the outcome of reactions like alkylation, arylation, and alkynylation as well as halide metathesis are dictated by the different trans influence of the two termini of the chelating tpy ligand in (tpy)Au(OAcF)2 (tpy = 2-(p-tolyl)pyridine, OAcF = OCOCF3, tpy-C > tpy-N). There is a strong preference for high trans influence ligands to end up trans to tpy-N, whereas the lower trans influence ligands end up trans to tpy-C. Taking advantage of these preferences, tailor-made (N,C)Au(III) complexes could be prepared. For the functionalization of alkenes at (tpy)Au(OAcF)2, the higher trans effect of tpy-C would suggest that the coordination site trans to tpy-C would be kinetically more available than the one trans to tpy-N. However, due to the thermodynamic preference of having the σ-bonded ligand, resulting from the nucleophilic addition to alkenes, trans to tpy-N, functionalization of alkenes was only observed trans to tpy-N. However, for a catalytic process, the reaction should happen trans to tpy-C, as was observed for the trifluoroacetoxylation of acetylene. When functionalizing acetylene in the coordination site trans to tpy-N, protolytic cleavage of the Au-C(vinyl) bond to release the product did not occur at all, whereas trans to tpy-C protolytic cleavage of the Au-C(vinyl) bond occurred readily, in agreement with the higher trans influence of tpy-C over tpy-N. The large impact of the trans effects in Au(III) complexes is finally exemplified with the synthesis of [(tpy)Au(π-allyl)]+[NTf2]-, which resulted in a highly asymmetric π + σ bonding of the allyl moiety. Here, the bonding is such that the most thermodynamically favorable situation is achieved, with the carbon trans to tpy-N bonded in a σ-fashion and the π-allyl double bond being coordinated trans to tpy-C.
Collapse
Affiliation(s)
- Marte Sofie Martinsen Holmsen
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
- Centre
for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126, Blindern, N-0316 Oslo, Norway
| | - Ainara Nova
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
- Centre
for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126, Blindern, N-0316 Oslo, Norway
- Hylleraas
Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
- UiT-The
Arctic University of Norway, N-9037 Tromsø, Norway
| | - Mats Tilset
- Department
of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
- Centre
for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126, Blindern, N-0316 Oslo, Norway
- Hylleraas
Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| |
Collapse
|
4
|
Segato J, Aneggi E, Baratta W, Campagnolo F, Belpassi L, Belanzoni P, Zuccaccia D. Experimental and Theoretical Investigation of Ion Pairing in Gold(III) Catalysts. Organometallics 2023; 42:2973-2982. [PMID: 37886625 PMCID: PMC10599130 DOI: 10.1021/acs.organomet.3c00293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Indexed: 10/28/2023]
Abstract
The ion pairing structure of the possible species present in solution during the gold(III)-catalyzed hydration of alkynes: [(ppy)Au(NHC)Y]X2 and [(ppy)Au(NHC)X]X [ppy = 2-phenylpyridine, NHC = NHCiPr = 1,3-bis(2,6-di-isopropylphenyl)-imidazol-2-ylidene; NHC = NHCmes = 1,3-bis(2,4,6-trimethylphenyl)-imidazol-2-ylidene X = Cl-, BF4-, OTf-; Y = H2O and 3-hexyne] are determined. The nuclear overhauser effect nuclear magnetic resonance (NMR) experimental measurements integrated with a theoretical description of the system (full optimization of different ion pairs and calculation of the Coulomb potential surface) indicate that the preferential position of the counterion is tunable through the choice of the ancillary ligands (NHCiPr, NHCmes, ppy, and Y) in [(ppy)Au(NHC)(3-hexyne)]X2 activated complexes that undergo nucleophilic attack. The counterion can approach near NHC, pyridine ring of ppy, and gold atom. From these positions, the anion can act as a template, holding water in the right position for the outer-sphere attack, as observed in gold(I) catalysts.
Collapse
Affiliation(s)
- Jacopo Segato
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Eleonora Aneggi
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Walter Baratta
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Filippo Campagnolo
- Dipartimento
di Scienze Agroalimentari, Ambientali e Animali, Sezione di Chimica, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy
| | - Leonardo Belpassi
- Istituto
di Scienze e Tecnologie Chimiche (SCITEC), Consiglio Nazionale delle
Ricerche c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Paola Belanzoni
- Istituto
di Scienze e Tecnologie Chimiche (SCITEC), Consiglio Nazionale delle
Ricerche c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Dipartimento
di Chimica, Biologia e Biotecnologie, Università
degli Studi di Perugia, 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
| |
Collapse
|
5
|
Regnacq M, Lesage D, Holmsen MSM, Miqueu K, Bourissou D, Gimbert Y. Energetics of key Au(III)-substrate adducts relevant to catalytic hydroarylation of alkynes. Dalton Trans 2023; 52:13528-13536. [PMID: 37721177 DOI: 10.1039/d3dt02393a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
(P,C)-cyclometalated Au(III) complexes have shown remarkable ability to catalyze the intermolecular hydroarylation of alkynes. Evidence of an outer-sphere mechanism has been provided in a previous study and is confirmed here by analysing the experimental data and DFT calculations. In this work, we propose evaluation of critical energies of dissociation of Au(III) complexes with different substrates via energy-resolved mass spectrometry (ERMS) experiments and kinetic modelling. The kinetic model is based on a multi-collisional approach. On the one hand, the classification confirms the mechanism previously proposed; on the other hand, it supports the collisional model and its application to particularly fragile adducts.
Collapse
Affiliation(s)
- Matthieu Regnacq
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 75252 Paris Cedex 05, France.
| | - Denis Lesage
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 75252 Paris Cedex 05, France.
| | - Marte S M Holmsen
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 31062 Toulouse Cedex 09, France.
- Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - 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, 64053 Pau Cedex 09, France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 31062 Toulouse Cedex 09, France.
| | - Yves Gimbert
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 75252 Paris Cedex 05, France.
- Département de Chimie Moléculaire - DCM UMR 5250, CNRS/Université Grenoble Alpes, UGA, 38000 Grenoble, France
| |
Collapse
|
6
|
Marsicano V, Arcadi A, Aschi M, Chiarini M, Fabrizi G, Goggiamani A, Marinelli F, Iazzetti A. Direct Regioselective Hydro(hetero)arylation/Cyclocondensation Reactions of β-(2-Aminophenyl)-α,β-ynones by Means of Transition-Metal Catalysis/Brønsted Acid Synergism: Experimental Results and Computational Insights. J Org Chem 2023. [PMID: 37162477 DOI: 10.1021/acs.joc.3c00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Experimental results and computational insights explain the key role of transition-metal catalysis/Brønsted acid synergism in the achievement of the sequential regioselective direct heteroarylation/cyclocondensation reactions of β-(2-aminophenyl)-α,β-ynones with a variety of electron-rich aromatic heterocyclic/arenes to afford quinoline-(hetero)aromatic hybrids. The first approach to the synthesis of 4-(1H-pyrrol-2-yl)quinolines is described. The effectiveness of various transition metals is compared.
Collapse
Affiliation(s)
- Vincenzo Marsicano
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi di L'Aquila, Via Vetoio, 67100 Coppito, AQ, Italy
| | - Antonio Arcadi
- Dipartimento di Ingegneria e Scienze dell'Informazione e Matematica, Università degli Studi di L'Aquila, Via Vetoio, 67100 Coppito, AQ, Italy
| | - Massimiliano Aschi
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi di L'Aquila, Via Vetoio, 67100 Coppito, AQ, Italy
| | - Marco Chiarini
- Dipartimento di Bioscienze e Tecnologie Agro-alimentari e Ambientali, Università di Teramo, Via Balzarini 1, 64100 Teramo, TE, Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Rome, Italy
| | - Antonella Goggiamani
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le A. Moro 5, 00185 Rome, Italy
| | - Fabio Marinelli
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi di L'Aquila, Via Vetoio, 67100 Coppito, AQ, Italy
| | - Antonia Iazzetti
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, L.go Francesco Vito 1, 00168 Rome, Italy
| |
Collapse
|
7
|
Monot J, Marelli E, Martin-Vaca B, Bourissou D. (P,C)-cyclometalated complexes derived from naphthyl phosphines: versatile and powerful tools in organometallic chemistry. Chem Soc Rev 2023; 52:3543-3566. [PMID: 37129171 DOI: 10.1039/d2cs00564f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The chemistry of (P,C)-cyclometalated complexes derived from naphthyl phosphines [Np(P,C)M] is presented and analysed in this review. The three main synthetic approaches, namely P-chelation assisted C-H activation, oxidative addition and transmetalation, are described and compared. If a naphthyl framework inherently predisposes a phosphorus atom and transition metal to interact, a rigid metallacycle may induce some strain and distortion, as apparent from the survey of the single-crystal X-ray diffraction structures deposited in the Cambridge Structural Database (77 entries with metals from groups 7 to 11). Generally, the Np(P,C)-cyclometalation imparts high thermal and chemical robustness to the complexes, and a variety of stoichiometric reactions have been reported. In most cases, the metalacyclic structure is retained, but protodecyclometalation and ring-expansion have been sparingly observed. [Np(P,C)M] complexes have also proved to be competent and actually competitive catalysts in several transformations, and they act as key intermediates in some others. In addition, interesting phosphorescence properties have been occasionally pointed out.
Collapse
Affiliation(s)
- Julien Monot
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France.
| | - Enrico Marelli
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France.
| | - Blanca Martin-Vaca
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France.
| | - Didier Bourissou
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France.
| |
Collapse
|
8
|
Au(III) Cyclometallated Compounds with 2-Arylpyridines and Their Derivatives or Analogues: 34 Years (1989–2022) of NMR and Single Crystal X-ray Studies. INORGANICS 2023. [DOI: 10.3390/inorganics11030100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
A review paper on Au(III) cyclometallated compounds with 2-arylpyridines (2-phenylpyridine, 2-benzylpyridine, 2-benzoylpyridine, 2-phenoxypyridine, 2-phenylsulfanylpyridine, 2-anilinopyridine, 2-(naphth-2-yl)pyridine, 2-(9,9-dialkylfluoren-2-yl)pyridines, 2-(dibenzofuran-4-yl)pyridine, and their derivatives) and their analogues (2-arylquinolines, 1- and 3-arylisoquinolines, 7,8-benzoquinoline), with 113 references. A total of 554 species, containing κ2-N(1),C(6′)*-Au(III), or analogous moiety (i.e., chelated by nitrogen of the pyridine-like ring and the deprotonated ortho- carbon of the phenyl-like ring) and, thus, possessing a character intermediate between metal complexes and organometallics, studied in the years 1989–2022 by NMR spectroscopy and/or single crystal X-ray diffraction (207 X-ray structures), are described. The compounds for which biological or catalytic activity and the luminescence properties were studied are also quoted.
Collapse
|
9
|
Holmsen MSM, Blons C, Amgoune A, Regnacq M, Lesage D, Sosa Carrizo ED, Lavedan P, Gimbert Y, Miqueu K, Bourissou D. Mechanism of Alkyne Hydroarylation Catalyzed by (P,C)-Cyclometalated Au(III) Complexes. J Am Chem Soc 2022; 144:22722-22733. [PMID: 36455211 DOI: 10.1021/jacs.2c10737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Over the last 5-10 years, gold(III) catalysis has developed rapidly. It often shows complementary if not unique features compared to gold(I) catalysis. While recent work has enabled major synthetic progress in terms of scope and efficiency, very little is yet known about the mechanism of Au(III)-catalyzed transformations and the relevant key intermediates have rarely been authenticated. Here, we report a detailed experimental/computational mechanistic study of the recently reported intermolecular hydroarylation of alkynes catalyzed by (P,C)-cyclometalated Au(III) complexes. The cationic (P,C)Au(OAcF)+ complex (OAcF = OCOCF3) was authenticated by mass spectrometry (MS) in the gas phase and multi-nuclear NMR spectroscopy in solution at low temperatures. According to density functional theory (DFT) calculations, the OAcF moiety is κ2-coordinated to gold in the ground state, but the corresponding κ1-forms featuring a vacant coordination site sit only slightly higher in energy. Side-on coordination of the alkyne to Au(III) then promotes nucleophilic addition of the arene. The energy profiles for the reaction between trimethoxybenzene (TMB) and diphenylacetylene (DPA) were computed by DFT. The activation barrier is significantly lower for the outer-sphere pathway than for the alternative inner-sphere mechanism involving C-H activation of the arene followed by migratory insertion. The π-complex of DPA was characterized by MS. An unprecedented σ-arene Au(III) complex with TMB was also authenticated both in the gas phase and in solution. The cationic complexes [(P,C)Au(OAcF)]+ and [(P,C)Au(OAcF)(σ-TMB)]+ stand as active species and off-cycle resting state during catalysis, respectively. This study provides a rational basis for the further development of Au(III) catalysis based on π-activation.
Collapse
Affiliation(s)
- Marte Sofie Martinsen Holmsen
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 118 route de Narbonne, 31062 Toulouse Cedex 09, France.,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway.,Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Charlie Blons
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Matthieu Regnacq
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 4 Place Jussieu, CC 229, 75252 Paris Cedex 05, France
| | - Denis Lesage
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 4 Place Jussieu, CC 229, 75252 Paris Cedex 05, France
| | - E Daiann Sosa Carrizo
- 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
| | - Pierre Lavedan
- Institut de Chimie de Toulouse - ICT, CNRS/Université de Toulouse, UPS, 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Yves Gimbert
- Institut Parisien de Chimie Moléculaire - IPCM UMR 8232, CNRS/Sorbonne Université, 4 Place Jussieu, CC 229, 75252 Paris Cedex 05, France.,Département de Chimie Moléculaire - DCM UMR 5250, CNRS/Université Grenoble Alpes, UGA, 38000 Grenoble, 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
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée - LHFA UMR 5069, CNRS/Université de Toulouse, UPS, 118 route de Narbonne, 31062 Toulouse Cedex 09, France
| |
Collapse
|
10
|
Hylland KT, Schmidtke IL, Wragg DS, Nova A, Tilset M. Synthesis of substituted (N,C) and (N,C,C) Au(III) complexes: the influence of sterics and electronics on cyclometalation reactions. Dalton Trans 2022; 51:5082-5097. [PMID: 35262546 DOI: 10.1039/d2dt00371f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclometalated Au(III) complexes are of interest due to their catalytic, medicinal, and photophysical properties. Herein, we describe the synthesis of derivatives of the type (N,C)Au(OAcF)2 (OAcF = trifluoroacetate) and (N,C,C)AuOAcF by a cyclometalation route, where (N,C) and (N,C,C) are chelating 2-arylpyridine ligands. The scope of the synthesis is explored by substituting the 2-arylpyridine core with electron donor or acceptor substituents at one or both rings. Notably, a variety of functionalized Au(III) complexes can be obtained in one step from the corresponding ligand and Au(OAc)3, eliminating the need for organomercury intermediates, which is commonly reported for similar syntheses. The influence of substituents in the ligand backbone on the resulting complexes was assessed using DFT calculations, 15N NMR spectroscopy and single-crystal X-ray diffraction analysis. A correlation between the electronic properties of the (N,C) ligands and their ability to undergo cyclometalation was found from experimental studies combined with natural charge analysis, suggesting the cyclometalation at Au(III) to take place via an electrophilic aromatic substitution-type mechanism. The formation of Au(III) pincer complexes from tridentate (N,C,C) ligands was investigated by synthesis and DFT calculations, in order to assess the feasibility of C(sp3)-H bond activation as a synthetic pathway to (N,C,C) cyclometalated Au(III) complexes. It was found that C(sp3)-H bond activation is feasible for ligands containing different alkyl groups (isopropyl and ethyl), although the C-H activation is less energetically favored compared to a ligand containing tert-butyl groups.
Collapse
Affiliation(s)
- Knut T Hylland
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - Inga L Schmidtke
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - David S Wragg
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway
| | - Ainara Nova
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway.,Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, N-0315 Oslo, Norway.,UiT-The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Mats Tilset
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway. .,Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126 Blindern, N-0316 Oslo, Norway.,Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, N-0315 Oslo, Norway
| |
Collapse
|
11
|
Corpas J, Mauleón P, Gómez Arrayás R, Carretero JC. E/Z
Photoisomerization of Olefins as an Emergent Strategy for the Control of Stereodivergence in Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Pablo Mauleón
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| | - Juan C. Carretero
- Department of Organic Chemistry Institute for Advanced Research in Chemical Sciences (IAdChem) Center for Innovation in Advanced Chemistry (ORFEO-CINQA). Universidad Autónoma de Madrid Cantoblanco 28049 Madrid Spain
| |
Collapse
|
12
|
Zhao X, Zhu S, Qing FL, Chu L. Reductive hydrobenzylation of terminal alkynes via photoredox and nickel dual catalysis. Chem Commun (Camb) 2021; 57:9414-9417. [PMID: 34528966 DOI: 10.1039/d1cc03668h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A photoredox/nickel dual catalyzed reductive hydrobenzylation of alkynes and benzyl chlorides by employing alkyl amines as a stoichiometric reductant is described. This synergistic protocol proceeds via Markovnikov-selective migratory insertion of an alkyne into nickel hydride, followed by cross-coupling with benzyl chloride, providing facile access to important 1,1-disubstituted olefins. This reaction enables the generation of nickel hydride by utilizing readily available alkyl amines as the hydrogen source. The mild conditions are compatible with a wide range of aryl and alkyl alkynes as well as chlorides.
Collapse
Affiliation(s)
- Xian Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China.
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China.
| | - Feng-Ling Qing
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China. .,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai 200032, China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China.
| |
Collapse
|
13
|
Neveselý T, Wienhold M, Molloy JJ, Gilmour R. Advances in the E → Z Isomerization of Alkenes Using Small Molecule Photocatalysts. Chem Rev 2021; 122:2650-2694. [PMID: 34449198 DOI: 10.1021/acs.chemrev.1c00324] [Citation(s) in RCA: 159] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Geometrical E → Z alkene isomerization is intimately entwined in the historical fabric of organic photochemistry and is enjoying a renaissance (Roth et al. Angew. Chem., Int. Ed. Engl. 1989 28, 1193-1207). This is a consequence of the fundamental stereochemical importance of Z-alkenes, juxtaposed with frustrations in thermal reactivity that are rooted in microscopic reversibility. Accessing excited state reactivity paradigms allow this latter obstacle to be circumnavigated by exploiting subtle differences in the photophysical behavior of the substrate and product chromophores: this provides a molecular basis for directionality. While direct irradiation is operationally simple, photosensitization via selective energy transfer enables augmentation of the alkene repertoire to include substrates that are not directly excited by photons. Through sustained innovation, an impressive portfolio of tailored small molecule catalysts with a range of triplet energies are now widely available to facilitate contra-thermodynamic and thermo-neutral isomerization reactions to generate Z-alkene fragments. This review is intended to serve as a practical guide covering the geometric isomerization of alkenes enabled by energy transfer catalysis from 2000 to 2020, and as a logical sequel to the excellent treatment by Dugave and Demange (Chem. Rev. 2003 103, 2475-2532). The mechanistic foundations underpinning isomerization selectivity are discussed together with induction models and rationales to explain the counterintuitive directionality of these processes in which very small energy differences distinguish substrate from product. Implications for subsequent stereospecific transformations, application in total synthesis, regioselective polyene isomerization, and spatiotemporal control of pre-existing alkene configuration in a broader sense are discussed.
Collapse
Affiliation(s)
- Tomáš Neveselý
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Max Wienhold
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - John J Molloy
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| |
Collapse
|
14
|
Corpas J, Mauleón P, Arrayás RG, Carretero JC. Transition-Metal-Catalyzed Functionalization of Alkynes with Organoboron Reagents: New Trends, Mechanistic Insights, and Applications. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01421] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Pablo Mauleón
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| | - Juan C. Carretero
- Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain
| |
Collapse
|
15
|
Reiersølmoen AC, Battaglia S, Orthaber A, Lindh R, Erdélyi M, Fiksdahl A. P, N-Chelated Gold(III) Complexes: Structure and Reactivity. Inorg Chem 2021; 60:2847-2855. [PMID: 33169989 PMCID: PMC7927145 DOI: 10.1021/acs.inorgchem.0c02720] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Gold(III) complexes are versatile catalysts offering a growing number of new synthetic transformations. Our current understanding of the mechanism of homogeneous gold(III) catalysis is, however, limited, with that of phosphorus-containing complexes being hitherto underexplored. The ease of phosphorus oxidation by gold(III) has so far hindered the use of phosphorus ligands in the context of gold(III) catalysis. We present a method for the generation of P,N-chelated gold(III) complexes that circumvents ligand oxidation and offers full counterion control, avoiding the unwanted formation of AuCl4-. On the basis of NMR spectroscopic, X-ray crystallographic, and density functional theory analyses, we assess the mechanism of formation of the active catalyst and of gold(III)-mediated styrene cyclopropanation with propargyl ester and intramolecular alkoxycyclization of 1,6-enyne. P,N-chelated gold(III) complexes are demonstrated to be straightforward to generate and be catalytically active in synthetically useful transformations of complex molecules.
Collapse
Affiliation(s)
- Ann Christin Reiersølmoen
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Stefano Battaglia
- Department of Chemistry-BMC Uppsala University, Husargatan 3, 75237 Uppsala, Sweden
| | - Andreas Orthaber
- Ångström Laboratory, Department of Organic Chemistry, Uppsala University, Lägerhyddsvägen 1, 75120 Uppsala, Sweden
| | - Roland Lindh
- Department of Chemistry-BMC Uppsala University, Husargatan 3, 75237 Uppsala, Sweden
| | - Máté Erdélyi
- Department of Chemistry-BMC Uppsala University, Husargatan 3, 75237 Uppsala, Sweden
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| |
Collapse
|
16
|
Liao S, Xu H, Xu L, Liang B, Yang B, Wang J, Zhou X, Lin X, Luo Z, Liu Y. A bifunctional ligand enables efficient gold-catalyzed hydroarylation of terminal unactivated propargylic alcohols with heteroareneboronic acids. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
Bavi M, Nabavizadeh SM, Hosseini FN, Niknam F, Hamidizadeh P, Hoseini SJ, Raoof F, Abu-Omar MM. Ligand-Mediated C-Br Oxidative Addition to Cycloplatinated(II) Complexes and Benzyl-Me C-C Bond Reductive Elimination from a Cycloplatinated(IV) Complex. ACS OMEGA 2020; 5:28621-28631. [PMID: 33195914 PMCID: PMC7658948 DOI: 10.1021/acsomega.0c03573] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
Reaction of the Pt(II) complexes [PtMe2(pbt)], 1a, (pbt = 2-(2-pyridyl)benzothiazole) and [PtMe(C^N)(PPh2Me)] [C^N = deprotonated 2-phenylpyridine (ppy), 1b, or deprotonated benzo[h]quinoline (bhq), 1c] with benzyl bromide, PhCH2Br, is studied. The reaction of 1a with PhCH2Br gave the Pt(IV) product complex [PtBr(CH2Ph)Me2(pbt)]. The major trans isomer is formed in a trans oxidative addition (2a), while the minor cis products (2a' and 2a″) resulted from an isomerization process. A solution of Pt(II) complex 1a in the presence of benzyl bromide in toluene at 70 °C after 7 days gradually gave the dibromo Pt(IV) complex [Pt(Br)2Me2(pbt)], 4a, as determined by NMR spectroscopy and single-crystal XRD. The reaction of complexes 1b and 1c with PhCH2Br gave the Pt(IV) complexes [PtMeBr(CH2Ph)(C^N)(PPh2Me)] (C^N = ppy; 2b; C^N = bhq, 2c), in which the phosphine and benzyl ligands are trans. Multinuclear NMR spectroscopy ruled out other isomers. Attempts to grow crystals of the cycloplatinated(IV) complex 2b yielded a previously reported Pt(II) complex [PtBr(ppy)(PPh2Me)], 3b, presumably from reductive elimination of ethylbenzene. UV-vis spectroscopy was used to study the kinetics of reaction of Pt(II) complexes 1a-1c with benzyl bromide. The data are consistent with a second-order SN2 mechanism and the first order in both the Pt complex and PhCH2Br. The rate of reaction decreases along the series 1a ≫ 1c > 1b. Density functional theory calculations were carried out to support experimental findings and understand the formation of isomers.
Collapse
Affiliation(s)
- Marzieh Bavi
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - S. Masoud Nabavizadeh
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | | | - Fatemeh Niknam
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Peyman Hamidizadeh
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - S. Jafar Hoseini
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Fatemeh Raoof
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Mahdi M. Abu-Omar
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| |
Collapse
|
18
|
King ER, Tropp J, Eedugurala N, Gonce LE, Stanciu S, Azoulay JD. Gold‐Catalyzed C−H Functionalization Polycondensation for the Synthesis of Aromatic Polymers. Angew Chem Int Ed Engl 2020; 59:21971-21975. [DOI: 10.1002/anie.202011426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Eric R. King
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Joshua Tropp
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Naresh Eedugurala
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Lauren E. Gonce
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Sonia Stanciu
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Jason D. Azoulay
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| |
Collapse
|
19
|
King ER, Tropp J, Eedugurala N, Gonce LE, Stanciu S, Azoulay JD. Gold‐Catalyzed C−H Functionalization Polycondensation for the Synthesis of Aromatic Polymers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Eric R. King
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Joshua Tropp
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Naresh Eedugurala
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Lauren E. Gonce
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Sonia Stanciu
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| | - Jason D. Azoulay
- School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive #5050 Hattiesburg MS 39406 USA
| |
Collapse
|
20
|
Abstract
An overview of the current state of mechanistic understanding of gold-catalyzed intermolecular alkyne hydrofunctionalization reactions is presented. Moving from the analysis of the main features of the by-now-generally accepted reaction mechanism, studies and evidences pointing out the mechanistic peculiarities of these reactions using different nucleophiles HNu that add to the alkyne triple bond are presented and discussed. The effects of the nature of the employed alkyne substrate and of the gold catalyst (employed ligands, counteranions, gold oxidation state), of additional additives and of the reaction conditions are also considered. Aim of this work is to provide the reader with a detailed mechanistic knowledge of this important reaction class, which will be invaluable for rapidly developing and optimizing synthetic protocols involving a gold-catalyzed alkyne hydrofunctionalization as a reaction step.
Collapse
|
21
|
Wang F, Meng Q. Theoretical Insight into Ni(0)-Catalyzed Hydroarylation of Alkenes and Arylboronic Acids. J Org Chem 2020; 85:13264-13271. [PMID: 32960062 DOI: 10.1021/acs.joc.0c01629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The density functional theory (ωB97XD functional) is employed to clarify nickel(0)/PtBu3-catalyzed hydroarylation of alkenes and arylboronic acids with methanol. The computational results reveal that this reaction goes primarily through the ligand-to-ligand H transfer from the O-H bond to the alkene coordinated with nickel, complexation of arylboronic acid to the nickel-alkyl-methoxyl intermediate, attack of methoxyl on boron, transmetalation, and reductive elimination. The formation of the branched 1,1-diarylalkane, linear 1,1-diarylalkane, and alkene-dimer is also discussed in this work.
Collapse
Affiliation(s)
- Fen Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China.,College of Chemistry and Chemical Engineering, Taishan University, Taian, Shandong 271021, People's Republic of China
| | - Qingxi Meng
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| |
Collapse
|
22
|
Duval M, Blons C, Mallet-Ladeira S, Delcroix D, Magna L, Olivier-Bourbigou H, Sosa Carrizo ED, Miqueu K, Amgoune A, Szalóki G, Bourissou D. Cu-Catalyzed P-C bond formation/cleavage: straightforward synthesis/ring-expansion of strained cyclic phosphoniums. Dalton Trans 2020; 49:13100-13109. [PMID: 32930272 DOI: 10.1039/d0dt03059g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Upon reaction with copper(i), peri-halo naphthyl phosphines readily form peri-bridged naphthyl phosphonium salts. The reaction works with alkyl, aryl and amino substituents at phosphorus, with iodine, bromine and chlorine as a halogen. It proceeds under mild conditions and is quantitative, despite the strain associated with the resulting 4-membered ring structure and the naphthalene framework. The transformation is amenable to catalysis. Under optimized conditions, the peri-iodo naphthyl phosphine 1-I is converted into the corresponding peri-bridged naphthyl phosphonium salt 2b in only 5 minutes at room temperature using 1 mol% of CuI. Based on DFT calculations, the reaction is proposed to involve a Cu(i)/Cu(iii) cycle made of P-coordination, C-X oxidative addition and P-C reductive elimination. This copper-catalyzed route gives a general and efficient access to peri-bridged naphthyl phosphonium salts for the first time. Reactivity studies could thus be initiated and the possibility to insert gold into the strained P-C bond was demonstrated. It leads to (P,C)-cyclometallated gold(iii) complexes. According to experimental observations and DFT calculations, two mechanistic pathways are operating: (i) direct oxidative addition of the strained P-C bond to gold,(ii) backward-formation of the peri-halo naphthyl phosphine (by C-P oxidative addition to copper followed by C-X reductive elimination), copper to gold exchange and oxidative addition of the C-X bond to gold. Detailed analysis of the reaction profiles computed theoretically gives more insight into the influence of the nature of the solvent and halogen atom, and provides rationale for the very different behaviour of copper and gold in this chemistry.
Collapse
Affiliation(s)
- Maryne Duval
- CNRS/Université Toulouse III - Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| | - Charlie Blons
- CNRS/Université Toulouse III - 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
| | - Damien Delcroix
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize BP3, 69360 Solaize, France
| | - Lionel Magna
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize BP3, 69360 Solaize, France
| | | | - E Daiann Sosa Carrizo
- CNRS/Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et Physico-Chimie pour l'Environnement et les Matériaux (IPREM, UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France.
| | - Karinne Miqueu
- CNRS/Université de Pau et des Pays de l'Adour, Institut des Sciences Analytiques et Physico-Chimie pour l'Environnement et les Matériaux (IPREM, UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 Pau Cedex 09, France.
| | - Abderrahmane Amgoune
- CNRS/Université Toulouse III - Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| | - György Szalóki
- CNRS/Université Toulouse III - Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| | - Didier Bourissou
- CNRS/Université Toulouse III - Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France.
| |
Collapse
|
23
|
Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| |
Collapse
|
24
|
Corpas J, Mauleón P, Gómez Arrayás R, Carretero JC. anti-Hydroarylation of Activated Internal Alkynes: Merging Pd and Energy Transfer Catalysis. Org Lett 2020; 22:6473-6478. [PMID: 32806218 DOI: 10.1021/acs.orglett.0c02281] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A general catalytic anti-hydroarylation of electron-deficient internal alkynes compatible with both electron-poor and electron-rich aryl reagents is reported. This selectivity is achieved through a sequential syn-carbopalladation of the alkyne by an Ar-Pd species, followed by a tandem, Ir-photocatalyzed, counter-thermodynamic E → Z isomerization. The use of ortho-substituted boronic acids enables direct access to pharmaceutically relevant heterocyclic cores via a cascade process. Mechanistic insight into the involvement of Ar-Pd versus Pd-H as an active species is provided.
Collapse
Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Pablo Mauleón
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| | - Juan C Carretero
- Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madridc/Fco. Tomás y Valiente 7, Cantoblanco, 28049 Madrid, Spain
| |
Collapse
|
25
|
Levchenko VA, Nova A, Øien‐Ødegaard S, Balcells D, Tilset M. Synthesis, Characterization, and Reactivity of Cyclometalated Gold(III) Dihalide Complexes in
Aqua Regia. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Volodymyr A. Levchenko
- Department of Chemistry and Center for Materials Science and Nanotechnology (SMN) Faculty of Mathematics and Natural Sciences University of Oslo P.O. Box 1126 Blindern 0318 Oslo Norway
| | - Ainara Nova
- Department of Chemistry and Center for Materials Science and Nanotechnology (SMN) Faculty of Mathematics and Natural Sciences University of Oslo P.O. Box 1126 Blindern 0318 Oslo Norway
- Hylleraas Centre for Quantum Molecular Sciences Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
| | - Sigurd Øien‐Ødegaard
- Department of Chemistry and Center for Materials Science and Nanotechnology (SMN) Faculty of Mathematics and Natural Sciences University of Oslo P.O. Box 1126 Blindern 0318 Oslo Norway
| | - David Balcells
- Hylleraas Centre for Quantum Molecular Sciences Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
| | - Mats Tilset
- Department of Chemistry and Center for Materials Science and Nanotechnology (SMN) Faculty of Mathematics and Natural Sciences University of Oslo P.O. Box 1126 Blindern 0318 Oslo Norway
- Hylleraas Centre for Quantum Molecular Sciences Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
| |
Collapse
|
26
|
Witzel S, Holmsen MSM, Rudolph M, Dietl MC, Øien-Ødegaard S, Rominger F, Tilset M, Hashmi ASK. Simple Mercury-Free Synthesis and Characterization of Symmetric and Unsymmetric Mono- and Dialkynyl (tpy)Au(III) Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Marte S. M. Holmsen
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Martin C. Dietl
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Sigurd Øien-Ødegaard
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Mats Tilset
- Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| |
Collapse
|
27
|
Furan S, Lork E, Mebs S, Hupf E, Beckmann J. Transmetallation of Bis(6‐diphenylphosphinoacenaphth‐5‐yl)‐Mercury and ‐Tributyltin with Precious Metal Chlorides. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sinas Furan
- Institut für Anorganische Chemie und Kristallographie Universität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Enno Lork
- Institut für Anorganische Chemie und Kristallographie Universität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Stefan Mebs
- Institut für Experimentalphysik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Emanuel Hupf
- Institut für Anorganische Chemie und Kristallographie Universität Bremen Leobener Straße 7 28359 Bremen Germany
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie Universität Bremen Leobener Straße 7 28359 Bremen Germany
| |
Collapse
|
28
|
Segato J, Del Zotto A, Belpassi L, Belanzoni P, Zuccaccia D. Hydration of alkynes catalyzed by [Au(X)(L)(ppy)]X in the green solvent γ-valerolactone under acid-free conditions: the importance of the pre-equilibrium step. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01343a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Stable and robust [Au(H2O)(NHC)(ppy)](X)2 successfully catalyses the hydration of alkynes in GVL, under acid-free conditions. DFT calculation and NMR measurements suggest that pre-equilibrium is the key step of the whole process.
Collapse
Affiliation(s)
- Jacopo Segato
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali
- Sezione di Chimica
- Università di Udine
- I-33100 Udine
- Italy
| | - Alessandro Del Zotto
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali
- Sezione di Chimica
- Università di Udine
- I-33100 Udine
- Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- Consiglio Nazionale delle Ricerche c/o
- Dipartimento di Chimica, Biologia e Biotecnologie
- Università degli Studi di Perugia
- 06123 Perugia
| | - Paola Belanzoni
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- Consiglio Nazionale delle Ricerche c/o
- Dipartimento di Chimica, Biologia e Biotecnologie
- Università degli Studi di Perugia
- 06123 Perugia
| | - Daniele Zuccaccia
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali
- Sezione di Chimica
- Università di Udine
- I-33100 Udine
- Italy
| |
Collapse
|
29
|
Wilkins LC, Kim Y, Litle ED, Gabbaï FP. Stabilized Carbenium Ions as Latent, Z‐type Ligands. Angew Chem Int Ed Engl 2019; 58:18266-18270. [DOI: 10.1002/anie.201911662] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Lewis C. Wilkins
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Youngmin Kim
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Elishua D. Litle
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - François P. Gabbaï
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| |
Collapse
|
30
|
Rodriguez J, Szalóki G, Sosa Carrizo ED, Saffon‐Merceron N, Miqueu K, Bourissou D. Gold(III) π‐Allyl Complexes. Angew Chem Int Ed Engl 2019; 59:1511-1515. [DOI: 10.1002/anie.201912314] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jessica Rodriguez
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - György Szalóki
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - E. Daiann Sosa Carrizo
- CNRS/UNIV PAU & PAYS ADOUR 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
| | | | - Karinne Miqueu
- CNRS/UNIV PAU & PAYS ADOUR 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
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| |
Collapse
|
31
|
Rodriguez J, Szalóki G, Sosa Carrizo ED, Saffon‐Merceron N, Miqueu K, Bourissou D. Gold(III) π‐Allyl Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jessica Rodriguez
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - György Szalóki
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - E. Daiann Sosa Carrizo
- CNRS/UNIV PAU & PAYS ADOUR 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
| | | | - Karinne Miqueu
- CNRS/UNIV PAU & PAYS ADOUR 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
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée Université Paul Sabatier/CNRS UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| |
Collapse
|
32
|
Wilkins LC, Kim Y, Litle ED, Gabbaï FP. Stabilized Carbenium Ions as Latent, Z‐type Ligands. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911662] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lewis C. Wilkins
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Youngmin Kim
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Elishua D. Litle
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - François P. Gabbaï
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| |
Collapse
|
33
|
Voccia M, Falivene L, Cavallo L, Tubaro C, Biffis A, Caporaso L. Ligand Effects in Pd-Catalyzed Intermolecular Alkyne Hydroarylations. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maria Voccia
- Department of Chemistry, University of Salerno, Via Ponte Don Melillo, 84084-Fisciano, SA, Italy
| | - Laura Falivene
- King Abdullah University of Science and Technology, Chemical and Life Sciences and Engineering, Kaust Catalysis Center, Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- Department of Chemistry, University of Salerno, Via Ponte Don Melillo, 84084-Fisciano, SA, Italy
- King Abdullah University of Science and Technology, Chemical and Life Sciences and Engineering, Kaust Catalysis Center, Thuwal 23955-6900, Saudi Arabia
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova 35131, Italy
| | - Andrea Biffis
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova 35131, Italy
| | - Lucia Caporaso
- Department of Chemistry, University of Salerno, Via Ponte Don Melillo, 84084-Fisciano, SA, Italy
| |
Collapse
|
34
|
The pivotal role of the counterion in gold catalyzed hydration and alkoxylation of alkynes. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
35
|
Gukathasan S, Parkin S, Awuah SG. Cyclometalated Gold(III) Complexes Bearing DACH Ligands. Inorg Chem 2019; 58:9326-9340. [DOI: 10.1021/acs.inorgchem.9b01031] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sailajah Gukathasan
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Samuel G. Awuah
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| |
Collapse
|
36
|
Navarro M, Toledo A, Joost M, Amgoune A, Mallet-Ladeira S, Bourissou D. π Complexes of P^P and P^N chelated gold(i). Chem Commun (Camb) 2019; 55:7974-7977. [PMID: 31225552 DOI: 10.1039/c9cc04266k] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tricoordinate gold(i) π-complexes containing P-based chelating ligands (P^P and P^N) were prepared. The structure of the gold(i) styrene complexes has been analysed in detail based on NMR and XRD data. The P^N complex is a competent catalyst for indole alkylation. The reaction proceeds with complete C3 and Markovnikov selectivity.
Collapse
Affiliation(s)
- Miquel Navarro
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Alberto Toledo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Maximilian Joost
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (FR 2599), Université de Toulouse, CNRS, 118 route de Narbonne, 31062 Toulouse cedex 9, France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
| |
Collapse
|
37
|
Baron M, Biffis A. Gold(I) Complexes in Ionic Liquids: An Efficient Catalytic System for the C-H Functionalization of Arenes and Heteroarenes under Mild Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900529] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via Marzolo1 35131 Padova Italy
| | - Andrea Biffis
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via Marzolo1 35131 Padova Italy
| |
Collapse
|