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Juszczak M, Das S, Kosińska A, Rybarczyk-Pirek AJ, Wzgarda-Raj K, Tokarz P, Vasudevan S, Chworos A, Woźniak K, Rudolf B. Piano-stool ruthenium(II) complexes with maleimide and phosphine or phosphite ligands: synthesis and activity against normal and cancer cells. Dalton Trans 2023; 52:4237-4250. [PMID: 36897334 DOI: 10.1039/d2dt04083b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
In these studies, we designed and investigated cyto- and genotoxic potential of five ruthenium cyclopentadienyl complexes bearing different phosphine and phosphite ligands. All of the complexes were characterized with spectroscopic analysis (NMR, FT-IR, ESI-MS, UV-vis, fluorescence and XRD (for two compounds)). For biological studies, we used three types of cells - normal peripheral blood mononuclear (PBM) cells, leukemic HL-60 cells and doxorubicin-resistance HL-60 cells (HL-60/DR). We compared the results obtained with those obtained for the complex with maleimide ligand CpRu(CO)2(η1-N-maleimidato) 1, which we had previously reported. We observed that the complexes CpRu(CO)(PPh3)(η1-N-maleimidato) 2a and CpRu(CO)(P(OEt)3)(η1-N-maleimidato) 3a were the most cytotoxic for HL-60 cells and non-cytotoxic for normal PBM cells. However, complex 1 was more cytotoxic for HL-60 cells than complexes 2a and 3a (IC50 = 6.39 μM vs. IC50 = 21.48 μM and IC50 = 12.25 μM, respectively). The complex CpRu(CO)(P(OPh)3)(η1-N-maleimidato) 3b is the most cytotoxic for HL-60/DR cells (IC50 = 104.35 μM). We found the genotoxic potential of complexes 2a and 3a only in HL-60 cells. These complexes also induced apoptosis in HL-60 cells. Docking studies showed that complexes 2a and CpRu(CO)(P(Fu)3)(η1-N-maleimidato) 2b have a small ability to degrade DNA, but they may cause a defect in DNA damage repair mechanisms leading to cell death. This hypothesis is corroborated with the results obtained in the plasmid relaxation assay in which ruthenium complexes bearing phosphine and phosphite ligands induce DNA breaks.
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Affiliation(s)
- Michał Juszczak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Sujoy Das
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Aneta Kosińska
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Agnieszka J Rybarczyk-Pirek
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Kinga Wzgarda-Raj
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Paulina Tokarz
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Saranya Vasudevan
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Katarzyna Woźniak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Bogna Rudolf
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
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2
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Norjmaa G, Ujaque G, Lledós A. Beyond Continuum Solvent Models in Computational Homogeneous Catalysis. Top Catal 2021. [DOI: 10.1007/s11244-021-01520-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AbstractIn homogeneous catalysis solvent is an inherent part of the catalytic system. As such, it must be considered in the computational modeling. The most common approach to include solvent effects in quantum mechanical calculations is by means of continuum solvent models. When they are properly used, average solvent effects are efficiently captured, mainly those related with solvent polarity. However, neglecting atomistic description of solvent molecules has its limitations, and continuum solvent models all alone cannot be applied to whatever situation. In many cases, inclusion of explicit solvent molecules in the quantum mechanical description of the system is mandatory. The purpose of this article is to highlight through selected examples what are the reasons that urge to go beyond the continuum models to the employment of micro-solvated (cluster-continuum) of fully explicit solvent models, in this way setting the limits of continuum solvent models in computational homogeneous catalysis. These examples showcase that inclusion of solvent molecules in the calculation not only can improve the description of already known mechanisms but can yield new mechanistic views of a reaction. With the aim of systematizing the use of explicit solvent models, after discussing the success and limitations of continuum solvent models, issues related with solvent coordination and solvent dynamics, solvent effects in reactions involving small, charged species, as well as reactions in protic solvents and the role of solvent as reagent itself are successively considered.
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4
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Bonsignore R, Thomas SR, Klooster WT, Coles SJ, Jenkins RL, Bourissou D, Barone G, Casini A. Carbon-Phosphorus Coupling from C^N Cyclometalated Au III Complexes. Chemistry 2020; 26:4226-4231. [PMID: 31994237 PMCID: PMC7187188 DOI: 10.1002/chem.201905392] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/10/2020] [Indexed: 12/20/2022]
Abstract
With the aim of exploiting new organometallic species for cross-coupling reactions, we report here on the AuIII -mediated Caryl -P bond formation occurring upon reaction of C^N cyclometalated AuIII complexes with phosphines. The [Au(C^N)Cl2 ] complex 1 featuring the bidentate 2-benzoylpyridine (CCO N) scaffold was found to react with PTA (1,3,5-triaza-7-phosphaadamantane) under mild conditions, including in water, to afford the corresponding phosphonium 5 through C-P reductive elimination. A mechanism is proposed for the title reaction based on in situ 31 P{1 H} NMR and HR-ESI-MS analyses combined with DFT calculations. The C-P coupling has been generalized to other C^N cyclometalated AuIII complexes and other tertiary phosphines. Overall, this work provides new insights into the reactivity of cyclometalated AuIII compounds and establishes initial structure-activity relationships to develop AuIII -mediated C-P cross-coupling reactions.
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Affiliation(s)
- Riccardo Bonsignore
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Sophie R. Thomas
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Wim T. Klooster
- School of ChemistryUniversity of SouthamptonSouthamptonSO17 1BJUK
| | - Simon J. Coles
- School of ChemistryUniversity of SouthamptonSouthamptonSO17 1BJUK
| | - Robert L. Jenkins
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
| | - Didier Bourissou
- CNRS/Université Paul SabatierLaboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)118 Route de Narbonne31062Toulouse Cedex 09France
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e FarmaceuticheUniversità degli Studi di PalermoViale delle Scienze, Edificio 1790128PalermoItaly
| | - Angela Casini
- School of ChemistryCardiff UniversityMain Building, Park PlaceCF10 3ATCardiffUK
- Department of ChemistryTechnical University of MunichLichtenbergstr. 485747GarchingGermany
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5
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Ikeda K, Hori Y, Mahyuddin MH, Shiota Y, Staykov A, Matsumoto T, Yoshizawa K, Ogo S. Dual Catalytic Cycle of H2 and H2O Oxidations by a Half-Sandwich Iridium Complex: A Theoretical Study. Inorg Chem 2019; 58:7274-7284. [DOI: 10.1021/acs.inorgchem.9b00307] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kei Ikeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Yuta Hori
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | | | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Aleksandar Staykov
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, Fukuoka 819-0395, Japan
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6
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Zhu LH, Yuan HY, Li WL, Zhang JP. A computational mechanistic study of substrate-controlled competitive O–H and C–H insertion reactions catalyzed by dirhodium(ii) carbenoids: insight into the origin of chemoselectivity. Org Chem Front 2018. [DOI: 10.1039/c8qo00475g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
DFT calculations disclosed the chemoselectivity of rhodium carbenoid and water co-catalyzed O–H and C–H insertion reactions with three 1,3-diketone substrates.
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Affiliation(s)
- Li-Han Zhu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Hai-Yan Yuan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Wen-Liang Li
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Jing-Ping Zhang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
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7
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Guerriero A, Peruzzini M, Gonsalvi L. Coordination chemistry of 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (PTA) and derivatives. Part III. Variations on a theme: Novel architectures, materials and applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.024] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Yu Y, Yu H, Kang X, Wang X, Yang J, Qu J, Luo Y. H–H and N–H Bond Cleavages of Dihydrogen and Ammonia by a Bifunctional Imido (NH)-Bridged Diiridium Complex: A DFT Study. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Yu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Hang Yu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Xiaohui Kang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Xingbao Wang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jimin Yang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jingping Qu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Yi Luo
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
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9
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Zhu L, Yuan H, Zhang J. Mechanistic investigation on N → C α → O relay via non-Brook rearrangement: reaction conditions promote synthesis of furo[3,2-c]pyridinones. Org Biomol Chem 2017; 15:9127-9138. [PMID: 29051939 DOI: 10.1039/c7ob02081c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A comprehensive density functional theory investigation was employed to disclose the effect of reaction conditions on the mechanism and effective anion relay sequence of a NaH promoted non-Brook rearrangement of benzaldehyde and 1-cinnamoylcyclopropanecarboxamides. Two main mechanisms were explored under four different reaction conditions: Na+-assisted and nH2O-Na+, 2H2O-DMSO-Na+, and Na+-DMSO co-assisted, and the difference relies on the reaction sequence between the concerted ring-opening and recyclization and electrophilic addition. Being different from previous reports, a cooperative participation of water, solvent DMSO and counterion Na+ is revealed in the preferential mechanism. The preferred scenario undergoes five major steps: deprotonation, aza-Michael addition, electrophilic addition, NaOH elimination and a concerted ring-opening and recyclization step. The rate-determining step is the concerted ring-opening and recyclization process with an energy barrier of 30.2 kcal mol-1. We found that the effective anion relay of a non-Brook rearrangement order is N → Cα → O rather than the previously proposed aza-oxy-carbanion. Meanwhile, a mixed type of ARC chemistry through a novel non-Brook rearrangement was disclosed. Moreover, the non-covalent interactions between substrate and reactant extensively affect the anion relay process by hydrogen-bonding (O-HO and C-HO) and electrostatic (Na+O) interactions. Thus, our results provide insightful clues to the mechanism of the reaction condition catalyzed non-Brook rearrangement reaction.
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Affiliation(s)
- Lihan Zhu
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, China.
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10
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Abstract
Transition metal hydride complexes are usually amphoteric, not only acting as hydride donors, but also as Brønsted-Lowry acids. A simple additive ligand acidity constant equation (LAC for short) allows the estimation of the acid dissociation constant Ka(LAC) of diamagnetic transition metal hydride and dihydrogen complexes. It is remarkably successful in systematizing diverse reports of over 450 reactions of acids with metal complexes and bases with metal hydrides and dihydrogen complexes, including catalytic cycles where these reactions are proposed or observed. There are links between pKa(LAC) and pKa(THF), pKa(DCM), pKa(MeCN) for neutral and cationic acids. For the groups from chromium to nickel, tables are provided that order the acidity of metal hydride and dihydrogen complexes from most acidic (pKa(LAC) -18) to least acidic (pKa(LAC) 50). Figures are constructed showing metal acids above the solvent pKa scales and organic acids below to summarize a large amount of information. Acid-base features are analyzed for catalysts from chromium to gold for ionic hydrogenations, bifunctional catalysts for hydrogen oxidation and evolution electrocatalysis, H/D exchange, olefin hydrogenation and isomerization, hydrogenation of ketones, aldehydes, imines, and carbon dioxide, hydrogenases and their model complexes, and palladium catalysts with hydride intermediates.
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Affiliation(s)
- Robert H Morris
- Department of Chemistry, University of Toronto , 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
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11
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Polo V, Schrock RR, Oro LA. A DFT study of the role of water in the rhodium-catalyzed hydrogenation of acetone. Chem Commun (Camb) 2016; 52:13881-13884. [PMID: 27841377 DOI: 10.1039/c6cc07875c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acetone hydrogenation by [RhH2(PR3)2S2]+ catalysts involves hydride migration to the ketone and subsequent reductive elimination assisted by two water molecules.
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Affiliation(s)
- Victor Polo
- Departamento de Química Física – Instituto de Biocomputación y Física de Sistemas complejos (BIFI) – Universidad de Zaragoza
- Facultad de Ciencias 50009
- Zaragoza
- Spain
| | - Richard R. Schrock
- Department of Chemistry
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Luis A. Oro
- Universidad de Zaragoza – CSIC
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Facultad de Ciencias 50009
- Zaragoza
- Spain
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12
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Dub PA, Gordon JC. The mechanism of enantioselective ketone reduction with Noyori and Noyori–Ikariya bifunctional catalysts. Dalton Trans 2016; 45:6756-81. [DOI: 10.1039/c6dt00476h] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The present article describes the current level of understanding of the mechanism of enantioselective hydrogenation and transfer hydrogenation of aromatic ketones with pioneering prototypes of bifunctional catalysts, the Noyori and Noyori–Ikariya complexes.
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Affiliation(s)
- Pavel A. Dub
- Chemistry Division
- Los Alamos National Laboratory
- Los Alamos
- USA
| | - John C. Gordon
- Chemistry Division
- Los Alamos National Laboratory
- Los Alamos
- USA
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13
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Carrión MC, Ruiz-Castañeda M, Espino G, Aliende C, Santos L, Rodríguez AM, Manzano BR, Jalón FA, Lledós A. Selective Catalytic Deuterium Labeling of Alcohols during a Transfer Hydrogenation Process of Ketones Using D2O as the Only Deuterium Source. Theoretical and Experimental Demonstration of a Ru–H/D+ Exchange as the Key Step. ACS Catal 2014. [DOI: 10.1021/cs401224g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M. Carmen Carrión
- Departamento
de Química Inorgánica, Orgánica y Bioquímica, UCLM. Facultad de Ciencias y Tecnologías Químicas-IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
- Fundación
PCYTA, Paseo de la innovación, 1, 02006 Albacete, Spain
| | - Margarita Ruiz-Castañeda
- Departamento
de Química Inorgánica, Orgánica y Bioquímica, UCLM. Facultad de Ciencias y Tecnologías Químicas-IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Gustavo Espino
- Departamento
de Química, Facultad de Ciencias, Univ. de Burgos. Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Cristina Aliende
- Departamento
de Química, Facultad de Ciencias, Univ. de Burgos. Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Lucía Santos
- Departamento
de Química Física, UCLM. Facultad de Ciencias y Tecnologías Químicas, Avda. C. J. Cela, s/n, 13071 Ciudad Real, Spain
| | - Ana M. Rodríguez
- Departamento
de Química Inorgánica, Orgánica y Bioquímica, UCLM, Escuela Técnica Superior de Ingenieros Industriales, Avda. C.
J. Cela, 3, 13071 Ciudad Real, Spain
| | - Blanca R. Manzano
- Departamento
de Química Inorgánica, Orgánica y Bioquímica, UCLM. Facultad de Ciencias y Tecnologías Químicas-IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Félix A. Jalón
- Departamento
de Química Inorgánica, Orgánica y Bioquímica, UCLM. Facultad de Ciencias y Tecnologías Químicas-IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Agustí Lledós
- Departament
de Química, Universitat Autònoma de Barcelona, Edifici
Cn, 08193 Cerdanyola
del Vallés, Spain
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14
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Chierotti MR, Rossin A, Gobetto R, Peruzzini M. Interaction between a Transition-Metal Fluoride and a Transition-Metal Hydride: Water-Mediated Hydrofluoric Acid Evolution Following Fluoride Solvation. Inorg Chem 2013; 52:12616-23. [DOI: 10.1021/ic401798b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Michele R. Chierotti
- Dipartimento
di Chimica, Università di Torino, Via Giuria 7, 10125 Torino, Italy
- NIS Centre of Excellence, Via Quarello 11, 10135 Torino, Italy
| | - Andrea Rossin
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019 Florence, Italy
| | - Roberto Gobetto
- Dipartimento
di Chimica, Università di Torino, Via Giuria 7, 10125 Torino, Italy
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019 Florence, Italy
| | - Maurizio Peruzzini
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, Sesto Fiorentino, 50019 Florence, Italy
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15
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Gordillo A, Ortuño MA, López-Mardomingo C, Lledós A, Ujaque G, de Jesús E. Mechanistic studies on the Pd-catalyzed vinylation of aryl halides with vinylalkoxysilanes in water: the effect of the solvent and NaOH promoter. J Am Chem Soc 2013; 135:13749-63. [PMID: 23968504 DOI: 10.1021/ja404255u] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The mechanism of the Pd-catalyzed vinylation of aryl halides with vinylalkoxysilanes in water has been studied using different catalytic precursors. The NaOH promoter converts the initial vinylalkoxysilane into a highly reactive water-soluble vinylsilanolate species. Similarly, deuterium-labeling experiments have shown that, irrespective of the catalytic precursor used, vinylation occurs exclusively at the CH vinylic functionality via a Heck reaction and not at the C-Si bond via a Hiyama cross-coupling. The involvement of a Heck mechanism is interpreted in terms of the reduced nucleophilicity of the base in water, which disfavors the transmetalation step. The Heck product (β-silylvinylarene) undergoes partial desilylation, with formation of a vinylarene, by three different routes: (a) hydrolytic desilylation by the aqueous solvent (only at high temperature); (b) transmetalation of the silyl olefin on the PdH Heck intermediate followed by reductive elimination of vinylarene; (c) reinsertion of the silyl olefin into the PdH bond of the Heck intermediate followed by β-Si syn-elimination. Both the Hiyama and Heck catalytic cycles and desilylation mechanisms b and c have been computationally evaluated for the [Pd(en)Cl2] precursor in water as solvent. The calculated Gibbs energy barriers support the reinsertion route proposed on the basis of the experimental results.
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Affiliation(s)
- Alvaro Gordillo
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá , Edificio de Farmacia, Campus Universitario, E28871 Alcalá de Henares, Madrid, Spain
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16
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Ho MH, Raugei S, Rousseau R, Dupuis M, Bullock RM. Evaluation of the Role of Water in the H2 Bond Formation by Ni(II)-Based Electrocatalysts. J Chem Theory Comput 2013; 9:3505-14. [DOI: 10.1021/ct400396s] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ming-Hsun Ho
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Simone Raugei
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Roger Rousseau
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Michel Dupuis
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
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17
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Jiménez-Tenorio M, Puerta MC, Valerga P, Ortuño MA, Ujaque G, Lledós A. Counteranion and Solvent Assistance in Ruthenium-Mediated Alkyne to Vinylidene Isomerizations. Inorg Chem 2013; 52:8919-32. [DOI: 10.1021/ic401119p] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Manuel Jiménez-Tenorio
- Departamento
de Ciencia de los Materiales e Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz,
Spain
| | - M. Carmen Puerta
- Departamento
de Ciencia de los Materiales e Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz,
Spain
| | - Pedro Valerga
- Departamento
de Ciencia de los Materiales e Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz,
Spain
| | - Manuel A. Ortuño
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Gregori Ujaque
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Agustí Lledós
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
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18
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Wang WH, Muckerman JT, Fujita E, Himeda Y. Mechanistic Insight through Factors Controlling Effective Hydrogenation of CO2 Catalyzed by Bioinspired Proton-Responsive Iridium(III) Complexes. ACS Catal 2013. [DOI: 10.1021/cs400172j] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wan-Hui Wang
- National Institute of Advanced Industrial Science and Technology, Tsukuba
Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565 Japan
- Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012
Japan
| | - James T. Muckerman
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Etsuko Fujita
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Yuichiro Himeda
- National Institute of Advanced Industrial Science and Technology, Tsukuba
Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565 Japan
- Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012
Japan
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19
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Gandhi T, Rajkumar S, Prathyusha V, Priyakumar UD. Synthesis and Reactivity Studies of Dicationic Dihydrogen Complexes Bearing Sulfur‐Donor Ligands: A Combined Experimental and Computational Study. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thirumanavelan Gandhi
- Materials Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India, http://vit.ac.in/sas/faculty.asp
| | - Subramani Rajkumar
- Materials Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, India, http://vit.ac.in/sas/faculty.asp
| | - V. Prathyusha
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032, India, http://www.iiit.ac.in/people/faculty/deva
| | - U. Deva Priyakumar
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032, India, http://www.iiit.ac.in/people/faculty/deva
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20
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Dub PA, Ikariya T. Quantum chemical calculations with the inclusion of nonspecific and specific solvation: asymmetric transfer hydrogenation with bifunctional ruthenium catalysts. J Am Chem Soc 2013; 135:2604-19. [PMID: 23336817 DOI: 10.1021/ja3097674] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Details of the mechanism of asymmetric transfer hydrogenation of ketones catalyzed by two chiral bifunctional ruthenium complexes, (S)-RuH[(R,R)-OCH(Ph)CH(Ph)NH(2)](η(6)-benzene) (Ru-1) or (S)-RuH[(R,R)-p-TsNCH(Ph)CH(Ph)NH(2)](η(6)-mesitylene) (Ru-2), were studied computationally by density functional theory, accounting for the solvation effects by using continuum, discrete, and mixed continuum/discrete solvation models via "solvated supermolecules" approach. In contrast to gas phase quantum chemical calculations, where the reactions were found to proceed via a concerted three-bond asynchronous process through a six-membered pericyclic transition state, incorporation of the implicit and/or explicit solvation into the calculations suggests that the same reactions proceed via two steps in solution: (i) enantio-determining hydride transfer and (ii) proton transfer through the contact ion-pair intermediate, stabilized primarily by ionic hydrogen bonding between the cation and the anion. The calculations suggest that the proton source for neutralizing the chiral RO(-) anion may be either the amine group of the cationic Ru complex or, more likely, a protic solvent molecule. In the latter case, the reaction may not necessarily proceed via the 16e amido complex Ru[(R,R)-XCH(Ph)CH(Ph)NH](η(6)-arene). The origin of enantioselectivity is discussed in terms of the newly formulated mechanism.
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Affiliation(s)
- Pavel A Dub
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Tokyo 152-8552, Japan
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21
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Díez J, Gimeno J, Lledós A, Suárez FJ, Vicent C. Imidazole Based Ruthenium(IV) Complexes as Highly Efficient Bifunctional Catalysts for the Redox Isomerization of Allylic Alcohols in Aqueous Medium: Water as Cooperating Ligand. ACS Catal 2012. [DOI: 10.1021/cs300369j] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Josefina Díez
- Laboratorio
de Química Organometálica y Catálisis (Unidad
Asociada al C.S.I.C.), Departamento de Química Orgánica
e Inorgánica, Instituto Universitario de Química Organometálica
“Enrique Moles”, Universidad de Oviedo, 33071 Oviedo, Spain
| | - José Gimeno
- Laboratorio
de Química Organometálica y Catálisis (Unidad
Asociada al C.S.I.C.), Departamento de Química Orgánica
e Inorgánica, Instituto Universitario de Química Organometálica
“Enrique Moles”, Universidad de Oviedo, 33071 Oviedo, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona,
Spain
| | - Francisco J. Suárez
- Laboratorio
de Química Organometálica y Catálisis (Unidad
Asociada al C.S.I.C.), Departamento de Química Orgánica
e Inorgánica, Instituto Universitario de Química Organometálica
“Enrique Moles”, Universidad de Oviedo, 33071 Oviedo, Spain
| | - Cristian Vicent
- Serveis Centrals d’Instrumentació
Científica, Universitat Jaume I,
Avenida Sos Baynat s/n, 12071 Castelló, Spain
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22
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Nakajima Y, Sakaki S, Nakao Y, Suzuki H. Theoretical Study of Dihydrogen Activation by a Trinuclear Ruthenium μ3-Imido Complex. Organometallics 2012. [DOI: 10.1021/om300372k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yumiko Nakajima
- Institute for Chemical Research, Kyoto University and JST-PRESTO, Uji, Kyoto 611-0011,
Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for
Fundamental
Chemistry, Kyoto University, Nishihiraki-cho,
Takano, Sakyo-ku, Kyoto 606-8103,
Japan
| | - Yoshihide Nakao
- Fukui Institute for
Fundamental
Chemistry, Kyoto University, Nishihiraki-cho,
Takano, Sakyo-ku, Kyoto 606-8103,
Japan
| | - Hiroharu Suzuki
- Department of Applied
Chemistry,
Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552,
Japan
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23
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Wang X, Weigl C, Doyle MP. Solvent enhancement of reaction selectivity: a unique property of cationic chiral dirhodium carboxamidates. J Am Chem Soc 2011; 133:9572-9. [PMID: 21591747 PMCID: PMC3116040 DOI: 10.1021/ja202676a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1,3-Dipolar cycloaddition reactions of nitrones with α,β-unsaturated aldehydes catalyzed by a cationic chiral dirhodium(II,III) carboxamidate with (R)-menthyl (S)-2-oxopyrrolidine-5-carboxylate ligands in toluene increase reaction rates, give optimum regioselectivities, and enhance stereoselectivities compared to the same reactions performed in traditionally used halocarbon solvents. Rate and enantioselectivity enhancements were also obtained in hetero-Diels-Alder and carbonyl-ene reactions performed in toluene over those obtained in dichloromethane using the diastereomeric chiral cationic dirhodium(II,III) carboxamidate with (S)-menthyl (S)-2-oxopyrrolidine-5-carboxylate ligands. These enhancements are attributed to diminished or absent association of toluene with the catalyst which lessens the relative importance of the uncatalyzed background reaction, and they may also be a consequence of different coordination angles for aldehyde association with rhodium in the different solvent environments. Overall, the enhancement of reaction rates and selectivities with cationic chiral dirhodium(II,III) carboxamidates in toluene suggests broad applications for them in Lewis acid catalyzed reactions.
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Affiliation(s)
- Xiaochen Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Carolin Weigl
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
| | - Michael P. Doyle
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742
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24
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Guerriero A, Erlandsson M, Ienco A, Krogstad DA, Peruzzini M, Reginato G, Gonsalvi L. Iridium(I) Complexes of Upper Rim Functionalized PTA Derivatives. Synthesis, Characterization, and Use in Catalytic Hydrogenations (PTA = 1,3,5-Triaaza-7-phosphaadamantane). Organometallics 2011. [DOI: 10.1021/om1011177] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Antonella Guerriero
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
| | - Mikael Erlandsson
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
| | - Andrea Ienco
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
| | - Donald A. Krogstad
- Concordia College at Moorhead, 334F Ivers, Moorhead, Minnesota 56562, United States
| | - Maurizio Peruzzini
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
| | - Gianna Reginato
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
| | - Luca Gonsalvi
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy
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25
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Gonsalvi L, Peruzzini M. Aqueous Phase Reactions Catalysed by Transition Metal Complexes of 7-Phospha-1,3,5-triazaadamantane (PTA) and Derivatives. PHOSPHORUS COMPOUNDS 2011. [DOI: 10.1007/978-90-481-3817-3_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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