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Gao P, Szostak M. Hydration Reactions Catalyzed by Transition Metal-NHC (NHC = N-Heterocyclic Carbene) Complexes. Coord Chem Rev 2023; 485:215110. [PMID: 37064328 PMCID: PMC10104449 DOI: 10.1016/j.ccr.2023.215110] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
The catalytic addition of water to unsaturated C-C or C-N π bonds represent one of the most important and environmentally sustainable methods to form C-O bonds for the production of synthetic intermediates, medicinal agents and natural products. The traditional acid-catalyzed hydration of unsaturated compounds typically requires strong acids or toxic mercury salts, which limits practical applications and presents safety and environmental concerns. Today, transition-metal-catalyzed hydration supported by NHC (NHC = N-heterocyclic carbene) ligands has attracted major attention. By rational design of ligands, choice of metals and counterions as well as mechanistic studies and the development of heterogeneous systems, major progress has been achieved for a broad range of hydration processes. In particular, the combination of NHC ligands with gold shows excellent reactivity compared with other catalytic systems; however, other systems based on silver, ruthenium, osmium, platinum, rhodium and nickel have also been discovered. Ancillary NHC ligands provide stabilization of transition metals and ensure high catalytic activity in hydration owing to their unique electronic and steric properties. NHC-Au(I) complexes are particularly favored for hydration of unsaturated hydrocarbons due to soft and carbophilic properties of gold. In this review, we present a comprehensive overview of hydration reactions catalyzed by transition metal-NHC complexes and their applications in catalytic hydration of different classes of π-substrates with a focus on the role of NHC ligands, types of metals and counterions.
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Affiliation(s)
- Pengcheng Gao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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2
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Abstract
Until the year 2000, gold compounds were considered catalytically inert. Subsequently, it was found that they are able to promote the nucleophilic attack on unsaturated substrates by forming an Au–π-system. The main limitation in the use of these catalytic systems is the ease with which they decompose, which is avoided by stabilization with an ancillary ligand. N-heterocyclic carbenes (NHCs), having interesting s-donor capacities, are able to stabilize the gold complexes (Au (I/III) NHC), favoring the exploration of their catalytic activity. This review reports the state of the art (years 2007–2022) in the nucleophilic addition of amines (hydroamination) and water (hydration) to the terminal and internal alkynes catalyzed by N-heterocyclic carbene gold (I/III) complexes. These reactions are particularly interesting both because they are environmentally sustainable and because they lead to the production of important intermediates in the chemical and pharmaceutical industry. In fact, they have an atom economy of 100%, and lead to the formation of imines and enamines, as well as the formation of ketones and enols, all important scaffolds in the synthesis of bioactive molecules, drugs, heterocycles, polymers, and bulk and fine chemicals.
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3
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Hobsteter A, Badajoz MA, Lo Fiego MJ, Silbestri GF. Galactopyranoside-Substituted N-Heterocyclic Carbene Gold(I) Complexes: Synthesis, Stability, and Catalytic Applications to Alkyne Hydration. ACS OMEGA 2022; 7:21788-21799. [PMID: 35785281 PMCID: PMC9245165 DOI: 10.1021/acsomega.2c01878] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
A series of novel gold(I) complexes bearing galactopyranoside-based N-heterocyclic carbene ligands have been synthesized via transmetalation of the corresponding Ag(I) complex. Gold(I) complexes have been characterized by NMR, Fourier transform infrared (FTIR), and elemental analysis. An exhaustive NMR analysis shows that the complexes are not stable when hydroxyl groups are deprotected. Catalytic studies, using the alkyne hydration as a model reaction, indicate that the synthesized complexes are active and reusable.
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4
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Flores JC, Silbestri GF, de Jesús E. Water-soluble transition-metal complexes with hydrophilic N-heterocyclic carbene ligands for aqueous-phase applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Collado A, Nelson DJ, Nolan SP. Optimizing Catalyst and Reaction Conditions in Gold(I) Catalysis-Ligand Development. Chem Rev 2021; 121:8559-8612. [PMID: 34259505 DOI: 10.1021/acs.chemrev.0c01320] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review considers phosphine and N-heterocyclic carbene complexes of gold(I) that are used as (pre)catalysts for a range of reactions in organic synthesis. These are divided according to the structure of the ligand, with the narrative focusing on studies that offer a quantitative comparison between the ligands and readily available or widely used existing systems.
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Affiliation(s)
- Alba Collado
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
| | - David J Nelson
- WestCHEM Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent, Belgium
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6
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Monti GA, Correa NM, Falcone RD, Silbestri GF, Moyano F. Understanding Metallic Nanoparticles Stabilization in Water by Imidazolium Salts: A Complete Physicochemical Study. ChemistrySelect 2020. [DOI: 10.1002/slct.202002869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Gustavo A. Monti
- Instituto para el desarrollo agroindustrial y de la salud, IDAS, (CONICET – UNRC.). Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - N. Mariano Correa
- Instituto para el desarrollo agroindustrial y de la salud, IDAS, (CONICET – UNRC.). Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - R. Darío Falcone
- Instituto para el desarrollo agroindustrial y de la salud, IDAS, (CONICET – UNRC.). Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR) Departamento de Química Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253 B8000CPB Bahía Blanca ARGENTINA
| | - Fernando Moyano
- Instituto para el desarrollo agroindustrial y de la salud, IDAS, (CONICET – UNRC.). Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto ARGENTINA
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7
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Tian J, Chen Y, Vayer M, Djurovic A, Guillot R, Guermazi R, Dagorne S, Bour C, Gandon V. Exploring the Limits of π‐Acid Catalysis Using Strongly Electrophilic Main Group Metal Complexes: The Case of Zinc and Aluminium. Chemistry 2020; 26:12831-12838. [DOI: 10.1002/chem.202001376] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/09/2020] [Indexed: 01/30/2023]
Affiliation(s)
- Jiaxin Tian
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Yan Chen
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Marie Vayer
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Alexandre Djurovic
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Refka Guermazi
- Institut de Chimie de Strasbourg CNRS-Université de Strasbourg 1 rue Blaise Pascal 67000 Strasbourg France
| | - Samuel Dagorne
- Institut de Chimie de Strasbourg CNRS-Université de Strasbourg 1 rue Blaise Pascal 67000 Strasbourg France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168 Ecole Polytechnique, Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
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8
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Fernández GA, Schiel MA, Silbestri GF. On the catalytic activation of water-soluble NHC-Au(I) complexes by sonication and microwave irradiation: A comparative assessment. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Monti GA, Correa NM, Falcone RD, Silbestri GF, Moyano F. Water-soluble gold nanoparticles: recyclable catalysts for the reduction of aromatic nitro compounds in water. RSC Adv 2020; 10:15065-15071. [PMID: 35495421 PMCID: PMC9052294 DOI: 10.1039/d0ra02131h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/02/2020] [Indexed: 12/03/2022] Open
Abstract
A structure/catalytic activity study of water-soluble gold nanoparticles, stabilized by zwitterionic ligands derived from imidazolium salts, in the reduction of aromatic nitro compounds in pure water at different temperature, as well as their recyclability, was performed. Our studies indicate that the nanoparticles synthesized by an easy, fast and reproducible process, need a short characteristic induction time to restructure the surfaces and make them active. The differences observed in the catalytic activity of the nanoparticles, determined by using the typical Langmuir–Hinshelwood model, are strongly based on the degree of coverage and spatial arrangement of the imidazolium salts on them. Finally, we demonstrate that gold nanoparticles stabilized by non-traditional ligands can be an excellent choice for nitro compound degradation. A structure/catalytic activity study of water-soluble gold nanoparticles, stabilized by zwitterionic ligands derived from imidazolium salts, in the reduction of aromatic nitro compounds in pure water, as well as their recyclability, was performed.![]()
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Affiliation(s)
- Gustavo A. Monti
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - N. Mariano Correa
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - R. Darío Falcone
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR)
- Departamento de Química
- Universidad Nacional del Sur (UNS)
- CONICET
- Bahía Blanca
| | - Fernando Moyano
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
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10
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Monti GA, Correa NM, Falcone RD, Silbestri GF, Moyano F. Gold Nanoparticles Stabilized by Sulfonated‐Imidazolium Salts as Promising Catalyst in Water. ChemistrySelect 2019. [DOI: 10.1002/slct.201903396] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gustavo A. Monti
- Instituto para el desarrollo agroindustrial y de la salud, IDAS(CONICET – UNRC.) Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto Argentina
| | - N. Mariano Correa
- Instituto para el desarrollo agroindustrial y de la salud, IDAS(CONICET – UNRC.) Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto Argentina
| | - R. Darío Falcone
- Instituto para el desarrollo agroindustrial y de la salud, IDAS(CONICET – UNRC.) Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto Argentina
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR)Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET Av. Alem 1253 B8000CPB Bahía Blanca Argentina
| | - Fernando Moyano
- Instituto para el desarrollo agroindustrial y de la salud, IDAS(CONICET – UNRC.) Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal # 3. C.P. X5804BYA Río Cuarto Argentina
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11
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Dominelli B, Roberts GM, Jandl C, Fischer PJ, Reich RM, Pöthig A, Correia JDG, Kühn FE. Dinuclear zwitterionic silver(i) and gold(i) complexes bearing 2,2-acetate-bridged bisimidazolylidene ligands. Dalton Trans 2019; 48:14036-14043. [PMID: 31490498 DOI: 10.1039/c9dt03035b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Four novel dinuclear Ag(i) and Au(i) NHC complexes bearing two 2,2-acetate-bridged bisimidazolylidene ligands (R = Me and iPr) of zwitterionic and metallacyclic forms are reported. The functionalized methylene bridge of the ligands leads to water soluble complexes, which have been characterized by NMR and IR spectroscopy, elemental analysis and single crystal X-ray diffraction in the case of La-H2-PF6, Ag2(La)2, Ag2(Lb)2 and Au2(La)2. Dimerization processes caused by hydrogen bonding or Ag(i)-carboxylate interactions in the solid state were observed for La-H2-PF6 and Ag2(La)2. DOSY NMR experiments confirmed that both bisimidazolium salts appear as dimers in aqueous solutions, in contrast to the corresponding monomeric Ag(i) and Au(i) complexes. Both gold(i) complexes form syn- and anti-isomers analogous to the reference coinage metal-based complexes. Protonation studies of the syn-isomer gold(i) complex Au2(La)2 were successful, whereas post-modification esterification or amidation reactions were not feasible. Additionally, decarboxylation reactions (thermally induced Krapcho- or oxidative Hunsdiecker-type) of the bisimidazolium salts were observed. Thus, the proximity of the carboxyl moiety to imidazolium/imidazolylidene rings seems to negatively affect stability and reactivity.
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Affiliation(s)
- Bruno Dominelli
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - Gerri M Roberts
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - Christian Jandl
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - Pauline J Fischer
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - Robert M Reich
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - Alexander Pöthig
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
| | - João D G Correia
- Centro de Ciências e Tecnologias Nucleares, Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional N° 10 (km 139, 7), 2695-066 Bobadela LRS, Portugal
| | - Fritz E Kühn
- Catalysis Research Center, Molecular Catalysis, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85748 Garching bei München, Germany.
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12
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Suta K, Turks M. In(III) and Hf(IV) Triflate-Catalyzed Hydration and Catalyst-free Hydrohalogenation of Aryl Acetylenes in Liquid Sulfur Dioxide. ACS OMEGA 2018; 3:18065-18077. [PMID: 31458393 PMCID: PMC6643593 DOI: 10.1021/acsomega.8b01630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 12/04/2018] [Indexed: 05/06/2023]
Abstract
The use of liquid sulfur dioxide as a reaction solvent to promote chemical transformations of alkynes has been explored. First, a combination of liquid SO2 and In(OTf)3 or Hf(OTf)4 as a catalyst allows to perform hydration of aryl alkynes under mild conditions without a direct addition of Brønsted acid. Second, novel catalyst-free conditions for the synthesis of α-vinyl iodides, bromides, and chlorides from aryl alkynes have been developed in liquid SO2 using group I and II metal halides and ammonium iodide as the halide ion sources.
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13
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Blanco MG, Vela Gurovic MS, Silbestri GF, Garelli A, Giunti S, Rayes D, De Rosa MJ. Diisopropylphenyl-imidazole (DII): A new compound that exerts anthelmintic activity through novel molecular mechanisms. PLoS Negl Trop Dis 2018; 12:e0007021. [PMID: 30557347 PMCID: PMC6312359 DOI: 10.1371/journal.pntd.0007021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 12/31/2018] [Accepted: 11/26/2018] [Indexed: 11/26/2022] Open
Abstract
Nematode parasites cause substantial morbidity to billions of people and considerable losses in livestock and food crops. The repertoire of effective anthelmintic compounds for treating these parasitoses is very limited, as drug development has been delayed for decades. Moreover, resistance has become a global concern in livestock parasites and is an emerging issue for human helminthiasis. Therefore, anthelmintics with novel mechanisms of action are urgently needed. Taking advantage of Caenorhabditis elegans as an established model system, we here screened the nematicidal potential of novel imidazolium and imidazole derivatives. One of these derivatives, diisopropylphenyl-imidazole (DII), is lethal to C. elegans at both mature and immature stages. This lethal effect appears to be specific because DII concentrations which prove to be toxic to C. elegans do not induce significant lethality on bacteria, Drosophila melanogaster, and HEK-293 cells. Our analysis of DII action on C. elegans mutant strains determined that, in the adult stage, null mutants of unc-29 are resistant to the drug. Muscle expression of this gene completely restores DII sensitivity. UNC-29 has been largely reported as an essential constituent of the levamisole-sensitive muscle nicotinic receptor (L-AChR). Nevertheless, null mutants in unc-63 and lev-8 (essential and non-essential subunits of L-AChRs, respectively) are as sensitive to DII as the wild-type strain. Therefore, our results suggest that DII effects on adult nematodes rely on a previously unidentified UNC-29-containing muscle AChR, different from the classical L-AChR. Interestingly, DII targets appear to be different between larvae and adults, as unc-29 null mutant larvae are sensitive to the drug. The existence of more than one target could delay resistance development. Its lethality on C. elegans, its harmlessness in non-nematode species and its novel and dual mechanism of action make DII a promising candidate compound for anthelmintic therapy. Intestinal helminth infections affect approximately one-third of the world’s population, particularly in developing countries. Paradoxically, drug development in this area has been delayed for years. In addition, resistance to currently available drugs is also an emerging global concern. Therefore, there is an urgent need for new and effective anthelmintics. In this work, we used C. elegans as a model for parasitic nematodes to screen the anthelmintic activity of several imidazole-derivative compounds. We found a compound, diisopropylphenyl-imidazole (DII), that is lethal to both mature and immature stages of C. elegans. The DII nematicidal mechanism of action depends on a novel UNC-29-containing AChR in adult C. elegans muscle. Since this mechanism is different from those of currently used anthelmintics, it could constitute a therapeutic option when traditional anthelmintic agents fail. In addition, we found that the DII larvicidal effect depends on a different target to that of adult stages. The fact that DII produces lethality through different targets may delay resistance development. The specificity and novel mode of action of DII, which includes differential targeting in larvae and adult nematodes, support its potential as a promising drug candidate to treat helminthiasis.
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Affiliation(s)
- María Gabriela Blanco
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) CCT UNS-CONICET, Bahía Blanca, Argentina.,Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - María Soledad Vela Gurovic
- Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina.,CERZOS UNS-CONICET CCT, Bahía Blanca, Argentina
| | - Gustavo Fabián Silbestri
- Dpto de Química, Universidad Nacional del Sur (UNS)-CONICET, Instituto de Química del Sur (INQUISUR), Bahía Blanca, Argentina
| | - Andrés Garelli
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) CCT UNS-CONICET, Bahía Blanca, Argentina.,Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Sebastián Giunti
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) CCT UNS-CONICET, Bahía Blanca, Argentina.,Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Diego Rayes
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) CCT UNS-CONICET, Bahía Blanca, Argentina.,Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - María José De Rosa
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) CCT UNS-CONICET, Bahía Blanca, Argentina.,Dpto de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
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14
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Sirindil F, Nolan SP, Dagorne S, Pale P, Blanc A, de Frémont P. Synthesis, Characterization and Catalytic Activity of NHC Gold(I) Polyoxometalate Complexes. Chemistry 2018; 24:12630-12637. [DOI: 10.1002/chem.201801648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/05/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Fatih Sirindil
- Laboratoire de Synthèse, Réactivité Organique et Catalyse; Institut de Chimie (UMR 7177 CNRS); Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry; Ghent University; Krijgslaan 281-S3 9000 Ghent Belgium
| | - Samuel Dagorne
- Equipe de Synthèse, Réactivité et Catalyse Organométalliques (UMR 7177 CNRS); Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organique et Catalyse; Institut de Chimie (UMR 7177 CNRS); Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organique et Catalyse; Institut de Chimie (UMR 7177 CNRS); Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Pierre de Frémont
- Equipe de Synthèse, Réactivité et Catalyse Organométalliques (UMR 7177 CNRS); Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
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15
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Wang W, Cui L, Sun P, Shi L, Yue C, Li F. Reusable N-Heterocyclic Carbene Complex Catalysts and Beyond: A Perspective on Recycling Strategies. Chem Rev 2018; 118:9843-9929. [DOI: 10.1021/acs.chemrev.8b00057] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenlong Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Lifeng Cui
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Peng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Lijun Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chengtao Yue
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Fernández GA, Dorn V, Chopa AB, Silbestri GF. Steric hindrance and electronic effects of sulfonatepropyl chain on gold center. An experimental and DFT study. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.09.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Zargaran P, Wurm T, Zahner D, Schießl J, Rudolph M, Rominger F, Hashmi ASK. A Structure-Based Activity Study of Highly Active Unsymmetrically Substituted NHC Gold(I) Catalysts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Poorya Zargaran
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Thomas Wurm
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - David Zahner
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jasmin Schießl
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi Arabia
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Monti GA, Fernández GA, Correa NM, Falcone RD, Moyano F, Silbestri GF. Gold nanoparticles stabilized with sulphonated imidazolium salts in water and reverse micelles. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170481. [PMID: 28791171 PMCID: PMC5541566 DOI: 10.1098/rsos.170481] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/20/2017] [Indexed: 05/20/2023]
Abstract
Herein we describe the synthesis of gold nanoparticles (Au-NPs) in presence of sulphonated imidazolium salts [1,3-bis(2,6-diisopropyl-4-sodiumsulfonatophenyl)imidazolium (L1), 1-mesityl-3-(3-sulfonatopropyl)imidazolium (L2) and 1-(3-sulfonatopropyl)imidazolium (L3)] in water and in a confinement environment created by reverse micelles (RMs). The Au-NPs were characterized-with an excellent agreement between different techniques-by UV-vis spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS) and zeta potential. In homogeneous media, the Au-NPs interact with the imidazolium ring and the sulphonate groups were directed away from the NPs' surface. This fact is responsible for the Au-NPs' stability-over three months-in water. Based on the obtained zeta potential values we assume the degree of coverage of the Au-NPs by the imidazolium salts. In n-heptane/sodium 1,4-bis (2-ethylhexyl) sulfosuccinate (AOT)/water RMs, the Au-NPs formed in presence of sulphonated imidazolium salts present different patterns depending on the ligand used as stabilizer. Interestingly, the Au-NPs are more stable in time when the salts are present in AOT RMs (three weeks) in comparison with the same RMs system but in absence of ligands (less than an hour). Clearly, the sulphonated imidazolium salts are very effective Au-NPs stabilizers in a different medium and this generates a plus to be able to use them for multiple purposes.
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Affiliation(s)
- Gustavo A. Monti
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal no. 3, C.P. X5804BYA Río Cuarto, Argentina
| | - Gabriela A. Fernández
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253, B8000CPB, Bahía Blanca, Argentina
| | - N. Mariano Correa
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal no. 3, C.P. X5804BYA Río Cuarto, Argentina
| | - R. Darío Falcone
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal no. 3, C.P. X5804BYA Río Cuarto, Argentina
| | - Fernando Moyano
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal no. 3, C.P. X5804BYA Río Cuarto, Argentina
- Authors for correspondence: Fernando Moyano e-mail:
| | - Gustavo F. Silbestri
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, Av. Alem 1253, B8000CPB, Bahía Blanca, Argentina
- Authors for correspondence: Gustavo F. Silbestri e-mail:
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