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Ortiz E, Shezaf J, Chang YH, Krische MJ. Enantioselective Metal-Catalyzed Reductive Coupling of Alkynes with Carbonyl Compounds and Imines: Convergent Construction of Allylic Alcohols and Amines. ACS Catal 2022; 12:8164-8174. [PMID: 37082110 PMCID: PMC10112658 DOI: 10.1021/acscatal.2c02444] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of alkynes as vinylmetal pronucleophiles in intermolecular enantioselective metal-catalyzed carbonyl and imine reductive couplings to form allylic alcohols and amines is surveyed. Related hydrogen auto-transfer processes, wherein alcohols or amines serve dually as reductants and carbonyl or imine proelectrophiles, also are cataloged, as are applications in target-oriented synthesis. These processes represent an emerging alternative to the use of stoichiometric vinylmetal reagents or Nozaki-Hiyama-Kishi (NHK) reactions in carbonyl and imine alkenylation.
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Affiliation(s)
- Eliezer Ortiz
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24 St., Austin, TX 78712, USA
| | - Jonathan Shezaf
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24 St., Austin, TX 78712, USA
| | - Yu-Hsiang Chang
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24 St., Austin, TX 78712, USA
| | - Michael J. Krische
- University of Texas at Austin, Department of Chemistry, Welch Hall (A5300), 105 E 24 St., Austin, TX 78712, USA
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2
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Ortiz E, Chang YH, Shezaf JZ, Shen W, Krische MJ. Stereo- and Site-Selective Conversion of Primary Alcohols to Allylic Alcohols via Ruthenium-Catalyzed Hydrogen Auto-Transfer Mediated by 2-Butyne. J Am Chem Soc 2022; 144:8861-8869. [PMID: 35503919 DOI: 10.1021/jacs.2c03614] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The first enantioselective ruthenium-catalyzed carbonyl vinylations via hydrogen autotransfer are described. Using a ruthenium-JOSIPHOS catalyst, primary alcohols 2a-2m and 2-butyne 1a are converted to chiral allylic alcohols 3a-3m with excellent levels of absolute stereocontrol. Notably, 1°,2°-1,3-diols participate in site-selective C-C coupling, enabling asymmetric carbonyl vinylation beyond premetalated reagents, exogenous reductants, or hydroxyl protecting groups. Using 2-propanol as a reductant, aldehydes dehydro-2a, 2l participate in highly enantioselective 2-butyne-mediated vinylation under otherwise identical reaction conditions. Regio-, stereo-, and site-selective vinylations mediated by 2-pentyne 1b to form adducts 3n, 3o, and epi-3o also are described. The tiglyl alcohol motif obtained upon butyne-mediated vinylation, which is itself found in diverse secondary metabolites, may be converted to commonly encountered polyketide stereodiads, -triads, and -tetrads, as demonstrated by the formation of adducts 4a-4d. The collective mechanistic studies, including deuterium labeling experiments, corroborate a catalytic cycle involving alcohol dehydrogenation to form a transient aldehyde and a ruthenium hydride, which engages in alkyne hydrometalation to form a nucleophilic vinylruthenium species that enacts carbonyl addition. A stereochemical model for carbonyl addition invoking formyl CH···I[Ru] and CH···O≡C[Ru] hydrogen bonds is proposed based on prior calculations and crystallographic data.
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Affiliation(s)
- Eliezer Ortiz
- University of Texas at Austin, Department of Chemistry, 105 East 24th Street, Austin, Texas 78712, United States
| | - Yu-Hsiang Chang
- University of Texas at Austin, Department of Chemistry, 105 East 24th Street, Austin, Texas 78712, United States
| | - Jonathan Z Shezaf
- University of Texas at Austin, Department of Chemistry, 105 East 24th Street, Austin, Texas 78712, United States
| | - Weijia Shen
- University of Texas at Austin, Department of Chemistry, 105 East 24th Street, Austin, Texas 78712, United States
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, 105 East 24th Street, Austin, Texas 78712, United States
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3
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Lobana TS. Heterocyclic-2-thione derivatives of group 10–12 metals: Coordination versatility, activation of C S (thione) bonds and biochemical potential. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213884] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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García‐Calvo J, Robson JA, Torroba T, Wilton‐Ely JDET. Synthesis and Application of Ruthenium(II) Alkenyl Complexes with Perylene Fluorophores for the Detection of Toxic Vapours and Gases. Chemistry 2019; 25:14214-14222. [DOI: 10.1002/chem.201903303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Indexed: 12/18/2022]
Affiliation(s)
- José García‐Calvo
- Department of ChemistryFaculty of ScienceUniversity of Burgos 09001 Burgos Spain
| | - Jonathan A. Robson
- Department of ChemistryImperial College London, Molecular Sciences Research Hub, White City Campus London W12 0BZ UK
| | - Tomás Torroba
- Department of ChemistryFaculty of ScienceUniversity of Burgos 09001 Burgos Spain
| | - James D. E. T. Wilton‐Ely
- Department of ChemistryImperial College London, Molecular Sciences Research Hub, White City Campus London W12 0BZ UK
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5
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Toscani A, Jantan KA, Hena JB, Robson JA, Parmenter EJ, Fiorini V, White AJP, Stagni S, Wilton-Ely JDET. The stepwise generation of multimetallic complexes based on a vinylbipyridine linkage and their photophysical properties. Dalton Trans 2017; 46:5558-5570. [PMID: 27872923 DOI: 10.1039/c6dt03810g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The versatile rhenium complex [ReCl(CO)3(bpyC[triple bond, length as m-dash]CH)] (HC[triple bond, length as m-dash]Cbpy = 5-ethynyl-2,2'-bipyridine) is used to generate a series of bimetallic complexes through the hydrometallation of [MHCl(CO)(BTD)(PPh3)2] (M = Ru, Os; BTD = 2,1,3-benzothiadiazole). The ruthenium complex [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(BTD)(CO)(PPh3)2] was characterised structurally. Ligand exchange reactions with bifunctional linkers bearing oxygen and sulfur donors provide access to tetra- and pentametallic complexes such as [{M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}(CO)(PPh3)2}2(S2CNC4H8NCS2)] and Fe[C5H4CO2M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}(CO)(PPh3)2]2. The effect of the group 8 metal on the photophysical properties of the rhenium centre was investigated using the complexes [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(BTD)(CO)(PPh3)2] and [M{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}{S2P(OEt)2}(CO)(PPh3)2] (M = Ru, Os). This revealed the quenching of the rhenium-based emission in favour of weak radiative processes based on the Ru and Os centres. The potential for exploiting this effect is illustrated by the reaction of [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(CO)(BTD)(PPh3)2] with carbon monoxide, which results in a 5-fold fluorescence enhancement in the dicarbonyl product, [Ru{CH[double bond, length as m-dash]CH-bpyReCl(CO)3}Cl(CO)2(PPh3)2], as the quenching effect is disrupted.
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Affiliation(s)
- Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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6
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Robson JA, Gonzàlez de Rivera F, Jantan KA, Wenzel MN, White AJP, Rossell O, Wilton-Ely JDET. Bifunctional Chalcogen Linkers for the Stepwise Generation of Multimetallic Assemblies and Functionalized Nanoparticles. Inorg Chem 2016; 55:12982-12996. [DOI: 10.1021/acs.inorgchem.6b02409] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jonathan A. Robson
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Ferran Gonzàlez de Rivera
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
| | - Khairil A. Jantan
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Margot N. Wenzel
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Oriol Rossell
- Departament de Química Inorgànica, Universitat de Barcelona, Martí Franquès 1-11, 08028 Barcelona, Spain
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7
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Corrêa RS, da Silva MM, Graminha AE, Meira CS, Santos JAFD, Moreira DRM, Soares MBP, Von Poelhsitz G, Castellano EE, Bloch C, Cominetti MR, Batista AA. Ruthenium(II) complexes of 1,3-thiazolidine-2-thione: Cytotoxicity against tumor cells and anti-Trypanosoma cruzi activity enhanced upon combination with benznidazole. J Inorg Biochem 2016; 156:153-63. [PMID: 26795676 DOI: 10.1016/j.jinorgbio.2015.12.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 12/16/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
Abstract
Three new mixed and mononuclear Ru(II) complexes containing 1,3-thiazolidine-2-thione (tzdtH) were synthesized and characterized by spectroscopic analysis, molar conductivity, cyclic voltammetry, high-resolution electrospray ionization mass spectra and X-ray diffraction. The complexes presented unique stereochemistry and the proposed formulae are: [Ru(tzdt)(bipy)(dppb)]PF6 (1), cis-[Ru(tzdt)2(PPh3)2] (2) and trans-[Ru(tzdt)(PPh3)2(bipy)]PF6 (3), where dppb=1,4-bis(diphenylphosphino)butane and bipy=2,2'-bipyridine. These complexes demonstrated strong cytotoxicity against cancer cell lines when compared to cisplatin. Specifically, complex 2 was the most potent cytotoxic agent against MCF-7 breast cells, while complexes 1 and 3 were more active in DU-145 prostate cells. Binding of complexes to ctDNA was determined by UV-vis titration and viscosity measurements and revealed binding constant (Kb) values in range of 1.0-4.9×10(3)M(-1), which are characteristic of compounds possessing weak affinity to ctDNA. In addition, these complexes presented antiparasitic activity against Trypanosoma cruzi. Specifically, complex 3 demonstrated strong potency, moderate selectivity index and acted in synergism with the approved antiparasitic drug, benznidazole. Additionally, complex 3 caused parasite cell death through a necrotic process. In conclusion, we demonstrated that Ru(II) complexes have powerful pharmacological activity, while the metal-free tzdtH does not provoke the same outcome.
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Affiliation(s)
- Rodrigo S Corrêa
- Departamento de Química, Universidade Federal de São Carlos, CP 676, CEP 13565-905 São Carlos, SP, Brazil; Departamento de Química, ICEB, Universidade Federal de Ouro Preto, CEP 35400-000 Ouro Preto, MG, Brazil.
| | - Monize M da Silva
- Departamento de Química, Universidade Federal de São Carlos, CP 676, CEP 13565-905 São Carlos, SP, Brazil
| | - Angelica E Graminha
- Departamento de Química, Universidade Federal de São Carlos, CP 676, CEP 13565-905 São Carlos, SP, Brazil
| | - Cássio S Meira
- Centro de Pesquisas Gonçalo Moniz, Fiocruz, CEP:40296-710 Salvador, BA, Brazil
| | | | - Diogo R M Moreira
- Centro de Pesquisas Gonçalo Moniz, Fiocruz, CEP:40296-710 Salvador, BA, Brazil
| | - Milena B P Soares
- Centro de Pesquisas Gonçalo Moniz, Fiocruz, CEP:40296-710 Salvador, BA, Brazil; Centro de Biotecnologia e Terapia Celular, Hospital São Rafael, Avenida São Rafael, 2152, São Marcos, CEP 41253-190 Salvador, BA, Brazil
| | - Gustavo Von Poelhsitz
- Instituto de Química, Universidade Federal de Uberlândia, CP 593, CEP 38400-902 Uberlândia, MG, Brazil
| | - Eduardo E Castellano
- Instituto de Física, Universidade de São Paulo, CP 369, CEP 13560-970 São Carlos, SP, Brazil
| | - Carlos Bloch
- Centro Nacional de Pesquisa de Recursos Genéticos e Biotecnologia, EMBRAPA, Estação Parque Biológico, CEP 70910-900 Brasília, DF, Brazil
| | - Marcia R Cominetti
- Departamento de Gerontologia, Universidade Federal de São Carlos, CP 676, CEP 13565-905 São Carlos, SP, Brazil
| | - Alzir A Batista
- Departamento de Química, Universidade Federal de São Carlos, CP 676, CEP 13565-905 São Carlos, SP, Brazil.
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8
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Ghosh MK, Mallick S, Islam A, Mohapatra S, Chattopadhyay S. Cleavage of RuC(aryl) bond of a four-membered ortho-metalated ruthenium(II) organometallics by mercaptopyrimidine and pyridine-2,6-dicarboxylate ligands: Spectroscopic, structural and computational studies. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Appelt P, Fagundes FD, Facchin G, Gabriela Kramer M, Back DF, Cunha MA, Sandrino B, Wohnrath K, de Araujo MP. Ruthenium (II) complexes containing 2-mercaptothiazolinates as ligands and evaluation of their antimicrobial activity. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.07.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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10
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Toscani A, Marín-Hernández C, Moragues ME, Sancenón F, Dingwall P, Brown NJ, Martínez-Máñez R, White AJP, Wilton-Ely JDET. Ruthenium(II) and Osmium(II) Vinyl Complexes as Highly Sensitive and Selective Chromogenic and Fluorogenic Probes for the Sensing of Carbon Monoxide in Air. Chemistry 2015; 21:14529-38. [DOI: 10.1002/chem.201501843] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Indexed: 01/28/2023]
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11
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Abdel-Rahman OS, Maurer J, Záliš S, Winter RF. Ruthenium Styryl Complexes with Ligands Derived from 2-Hydroxy- and 2-Mercaptopyridine and 2-Hydroxy- and 2-Mercaptoquinoline. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00401] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Obadah S. Abdel-Rahman
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße
10, D-78457 Konstanz, Germany
| | - Jörg Maurer
- Institut für Anorganische Chemie der Universität Regensburg, Universitätsstraße 31, D-93040 Regensburg, Germany
| | - Stanislav Záliš
- J. Heyrovský Institute of Physical Chemistry v.
v. i., Academy of Sciences of the Czech Republic, Dolejškova
3, 18223 Prague, Czech Republic
| | - Rainer F. Winter
- Fachbereich Chemie der Universität Konstanz, Universitätsstraße
10, D-78457 Konstanz, Germany
- Institut für Anorganische Chemie der Universität Regensburg, Universitätsstraße 31, D-93040 Regensburg, Germany
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12
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Toscani A, Heliövaara EK, Hena JB, White AJP, Wilton-Ely JDET. Multimetallic Alkenyl Complexes Bearing Macrocyclic Dithiocarbamate Ligands. Organometallics 2015. [DOI: 10.1021/om5011269] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Eeva K. Heliövaara
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Jubeda B. Hena
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
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13
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Hurtubise VL, McArdle JM, Naeem S, Toscani A, White AJP, Long NJ, Wilton-Ely JDET. Multimetallic Complexes and Functionalized Nanoparticles Based on Unsymmetrical Dithiocarbamate Ligands with Allyl and Propargyl Functionality. Inorg Chem 2014; 53:11740-8. [DOI: 10.1021/ic502015c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Venesia L. Hurtubise
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - James M. McArdle
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - James D. E. T. Wilton-Ely
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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14
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Sravani C, Venkatesh S, Vijayakrishna K, Sivaramakrishna A. Alkenyl complexes of platinum group metals: a platform for diverse reactivity patterns. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Chinduluri Sravani
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Sadhana Venkatesh
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Kari Vijayakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
| | - Akella Sivaramakrishna
- Chemistry Division, School of Advanced Sciences; VIT University; Vellore 632 014 Tamil Nadu India
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15
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Naeem S, Ribes A, White AJP, Haque MN, Holt KB, Wilton-Ely JDET. Multimetallic Complexes and Functionalized Nanoparticles Based on Oxygen- and Nitrogen-Donor Combinations. Inorg Chem 2013; 52:4700-13. [DOI: 10.1021/ic400335y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7
2AZ, U.K
| | - Angela Ribes
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7
2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7
2AZ, U.K
| | - Mohammed N. Haque
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Katherine B. Holt
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
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16
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Al-Jibori SA, Al-Saraj EG, Hollingsworth N, Hogarth G. Palladium(II) complexes with 2-acetylamino-5-mercapto-1,3,4-thiadiazolate (amta) ligands: Molecular structures of the all trans dipalladium “paddlewheel” Pd2(μ-amta)4 and Pd(κ1-amta)2(κ2-dppe). Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Patel P, Naeem S, White AJP, Wilton-Ely JDET. Synthesis and reactivity of dialkyldithiophosphate complexes of ruthenium(ii). RSC Adv 2012. [DOI: 10.1039/c1ra00973g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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18
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Chia EY, Naeem S, Delaude L, White AJP, Wilton-Ely JDET. Gold(I) complexes bearing mixed-donor ligands derived from N-heterocyclic carbenes. Dalton Trans 2011; 40:6645-58. [PMID: 21369614 DOI: 10.1039/c0dt01613f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new 2-phenylthiocarbamoyl-1,3-dimesitylimidazolium inner salt (IMes·CSNPh) reacts with [AuCl(L)] in the presence of NH(4)PF(6) to yield [(L)Au(SCNPh·IMes)](+) (L = PMe(3), PPh(3), PCy(3), CNBu(t)). The carbene-containing precursor [(IDip)AuCl] reacts with IMes·CSNPh under the same conditions to afford the complex [(IDip)Au(SCNPh·IMes)](+) (IDip = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene). Treatment of the diphosphine complex [(dppm)(AuCl)(2)] with one equivalent of IMes·CSNPh yields the digold metallacycle, [(dppm)Au(2)(SCNPh·IMes)](2+), while reaction of [L(2)(AuCl)(2)] with two equivalents of IMes·CSNPh results in [(L(2)){Au(SCNPh·IMes)}(2)](2+) (L(2) = dppb, dppf, or dppa; dppb = 1,4-bis(diphenylphosphino)butane, dppf = 1,1'-bis(diphenylphosphino)ferrocene, dppa = 1,4-bis(diphenylphosphino)acetylene). The homoleptic complex [Au(SCNPh·IMes)(2)](+) is formed on reaction of [AuCl(tht)] (tht = tetrahydrothiophene) with two equivalents of the imidazolium-2-phenylthiocarbamoyl ligand. This product reacts with AgOTf to yield the mixed metal compound [AuAg(SCNPh·IMes)(2)](2+). Over time, the unusual trimetallic complex [Au(AgOTf)(2)(SCNPh·IMes)(2)](+) is formed. The sulfur-oxygen mixed-donor ligands IMes·COS and SIMes·COS (SIMes = 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene) were used to prepare [(L)Au(SOC·IMes)](+) and [(L)Au(SOC·SIMes)](+) from [(L)AuCl] (L = PPh(3), CN(t)Bu). The bimetallic examples [(dppf){Au(SOC·IMes)}(2)](2+) and [(dppf){Au(SOC·SIMes)}(2)](2+) were synthesized from the reaction of [(dppf)(AuCl)(2)] with the appropriate ligand. Reaction of [(tht)AuCl] with one equivalent of IMes·COS or SIMes·COS yields [Au(SOC·IMes)(2)](+) and [Au(SOC·SIMes)(2)](+), respectively. The compounds [(Ph(3)P)Au(SCNPh·IMes)]PF(6), [(Cy(3)P)Au(SCNPh·IMes)]PF(6) and [Au(AgOTf)(2)(SCNPh·IMes)(2)]OTf were characterized crystallographically.
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Affiliation(s)
- Eugene Y Chia
- Department of Chemistry, Imperial College London, South Kensington Campus, London, UK SW7 2AZ
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19
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Naeem S, Thompson AL, White AJP, Delaude L, Wilton-Ely JDET. Dithiocarboxylate complexes of ruthenium(ii) and osmium(ii). Dalton Trans 2011; 40:3737-47. [DOI: 10.1039/c1dt10048c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Naeem S, Thompson AL, Delaude L, Wilton-Ely JDET. Non-innocent Behaviour of Dithiocarboxylate Ligands Based on N-Heterocyclic Carbenes. Chemistry 2010; 16:10971-4. [DOI: 10.1002/chem.201001235] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Naeem S, White AJP, Hogarth G, Wilton-Ely JDET. Multifunctional Dithiocarbamates: Synthesis and Ring-Closing Metathesis of Diallyldithiocarbamate Complexes. Organometallics 2010. [DOI: 10.1021/om1002123] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K
| | - Graeme Hogarth
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
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Naeem S, Ogilvie E, White AJP, Hogarth G, Wilton-Ely JDET. The functionalisation of ruthenium(II) and osmium(II) alkenyl complexes with amine- and alkoxy-terminated dithiocarbamates. Dalton Trans 2010; 39:4080-9. [PMID: 20390171 DOI: 10.1039/b925536b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex cis-[RuCl(2)(dppm)(2)] reacts with the amine-terminated dithiocarbamates KS(2)CN(CH(2)CH(2)NEt(2))(2) and KS(2)CN(CH(2)CH(2)CH(2)NMe(2))(2) to form the compounds [Ru{S(2)CN(CH(2)CH(2)NEt(2))(2)}(dppm)(2)](+) and [Ru{S(2)CN(CH(2)CH(2)CH(2)NMe(2))(2)}(dppm)(2)](+), respectively. The methoxy-terminated dithiocarbamate compound [Ru{S(2)CN(CH(2)CH(2)OMe)(2)}(dppm)(2)](+) was also prepared from the same precursor using KS(2)CN(CH(2)CH(2)OMe)(2). The alkenyl complexes [RuRCl(CO)(BTD)(PPh(3))(2)] (R = CH=CHBu(t), CH=CHC(6)H(4)Me-4, CH=CHCPh(2)OH), [Ru(C(C[triple bond]CBu(t))=CHBu(t))Cl(CO)(PPh(3))(2)] and [Os(CH=CHC(6)H(4)Me-4)Cl(CO)(BTD)(PPh(3))(2)] also react cleanly with KS(2)CN(CH(2)CH(2)CH(2)NMe(2))(2) and KS(2)CN(CH(2)CH(2)NEt(2))(2) to yield [MR{S(2)CN(CH(2)CH(2)CH(2)NMe(2))(2)}(CO)(PPh(3))(2)] and [MR{S(2)CN(CH(2)CH(2)NEt(2))(2)}(CO)(PPh(3))(2)], respectively. In a similar fashion, the compounds [RuR{S(2)CN(CH(2)CH(2)OMe(2))(2)}(CO)(PPh(3))(2)] (R = CH=CHBu(t), CH=CHC(6)H(4)Me-4, C(C[triple bond]CBu(t))=CHBu(t)) were also prepared. Treatment of [Ru(CH=CHBu(t)){S(2)CN(CH(2)CH(2)CH(2)NMe(2))(2)}(CO)(PPh(3))(2)] and [Ru{S(2)CN(CH(2)CH(2)NEt(2))(2)}(dppm)(2)](+) with trifluoroacetic acid affords the ammonium complexes [Ru(CH=CHBu(t)){S(2)CN(CH(2)CH(2)CH(2)NHMe(2))(2)}(CO)(PPh(3))(2)](2+) and [Ru{S(2)CN(CH(2)CH(2)NHEt(2))(2)}(dppm)(2)](2+), while the same reagent generates the tricationic vinylcarbene complex [Ru(=CHCH=CPh(2)){S(2)CN(CH(2)CH(2)CH(2)NHMe(2))(2)}(CO)(PPh(3))(2)](3+) through loss of water from [Ru(CH=CHCPh(2)OH){S(2)CN(CH(2)CH(2)CH(2)NMe(2))(2)}(CO)(PPh(3))(2)]. The structures of [Ru{S(2)CN(CH(2)CH(2)OMe)(2)}(dppm)(2)]PF(6) and [Ru(CH=CHC(6)H(4)Me-4){S(2)CN(CH(2)CH(2)OMe)(2)}(CO)(PPh(3))(2)] were determined crystallographically.
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Affiliation(s)
- Saira Naeem
- Department of Chemistry, Imperial College London, South Kensington Campus, London, UK SW7 2AZ
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23
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Lin YH, Leung NH, Holt KB, Thompson AL, Wilton-Ely JDET. Bimetallic complexes based on carboxylate and xanthate ligands: Synthesis and electrochemical investigations. Dalton Trans 2009:7891-901. [DOI: 10.1039/b901822k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Macgregor MJ, Hogarth G, Thompson AL, Wilton-Ely JDET. Multimetallic Arrays: Symmetrical and Unsymmetrical Bi-, Tri-, and Tetrametallic Organometallic Complexes of Ruthenium(II) and Osmium(II). Organometallics 2008. [DOI: 10.1021/om800686f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mairi J. Macgregor
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Graeme Hogarth
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Amber L. Thompson
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - James D. E. T. Wilton-Ely
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
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25
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Blajiev OL, Breugelmans T, Pintelon R, Terryn H, Hubin A. Potentiodynamic EIS investigation of the 2-methyl-5-mercapto-1,3,4-thiadiazole adsorption on copper. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.01.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Biologically active 2-thione-4,6-diamino-5-hydroxypyrimidine transition metal complexes. TRANSIT METAL CHEM 2008. [DOI: 10.1007/s11243-008-9076-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Cowley AR, Hector AL, Hill AF, White AJP, Williams DJ, Wilton-Ely JDET. Synthesis and Reactions of Five-Coordinate Mono- and Binuclear Thiocarbonyl−Alkenyl and Thioacyl Complexes of Ruthenium(II). Organometallics 2007. [DOI: 10.1021/om700518m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew R. Cowley
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Andrew L. Hector
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Anthony F. Hill
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Andrew J. P. White
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - David J. Williams
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
| | - James D. E. T. Wilton-Ely
- Chemistry Research Laboratory, University of Oxford, Oxford, U.K., Department of Chemistry, Imperial College, London, U.K., and Research School of Chemistry, Institute of Advanced Studies, Australian National University, Canberra, Australian Capital Territory, Australia
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