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Camacho-Fernandez MA, Ziller JW, Guan Z. Comparative Investigation of η 6-Arene Tethered Ru(II) Complexes with Different Tethered Heteroatoms for Ethylene Polymerization Catalysis: Experimental and DFT Studies. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miguel A. Camacho-Fernandez
- Department of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697-2025, United States
| | - Zhibin Guan
- Department of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697-2025, United States
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2
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Kisets I, Zabelinskaya S, Gelman D. Synthesis and Catalytic Properties of a Carbometalated Half-Sandwich Ru(II) Complex Bearing a Rigid Polyaromatic Tether. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Kisets
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Sofiya Zabelinskaya
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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3
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Gallardo-Villagrán M, Paulus L, Champavier Y, Leger DY, Therrien B, Liagre B. Combination of tetrapyridylporphyrins and arene ruthenium(II) complexes to treat synovial sarcoma by photodynamic therapy. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424622500018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Four tetrapyridylporphyrin and four dipyridylporphyrin arene ruthenium complexes have been synthesized and characterized. In these complexes, the porphyrin core is either metal-free or occupied by zinc, and the arene ligand of the arene ruthenium units are either the standard methyl-isopropyl-benzene ([Formula: see text]cymene) or the less common phenylpropanol (PhPrOH) derivative. The porphyrin derivatives are coordinated to four arene ruthenium units or only two, in accordance with the number of pyridyl substituents at the periphery of the porphyrins, 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine (TPyP) and 5,15-diphenyl-10,20-di(pyridin-4-yl)porphyrin (DPhDPyP). All eight complexes were evaluated as anticancer agents on synovial sarcoma cells, in the presence and absence of light, suggesting that both the arene ligand and the porphyrin core substituent can play a crucial role in fine-tuning the photodynamic activity of such organometallic photosensitizers.
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Affiliation(s)
- Manuel Gallardo-Villagrán
- Laboratoire PEIRENE, Faculté de Pharmacie, Université de Limoges, EA 7500, F-87025 Limoges, France
- Institut de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Lucie Paulus
- Laboratoire PEIRENE, Faculté de Pharmacie, Université de Limoges, EA 7500, F-87025 Limoges, France
| | - Yves Champavier
- Laboratoire PEIRENE, Faculté de Pharmacie, Université de Limoges, EA 7500, F-87025 Limoges, France
- BISCEm, NMR platform, Centre de Biologie et de Recherche en Santé (CBRS), Limoges, France
| | - David Yannick Leger
- Laboratoire PEIRENE, Faculté de Pharmacie, Université de Limoges, EA 7500, F-87025 Limoges, France
| | - Bruno Therrien
- Institut de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Bertrand Liagre
- Laboratoire PEIRENE, Faculté de Pharmacie, Université de Limoges, EA 7500, F-87025 Limoges, France
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4
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Infante-Tadeo S, Rodríguez-Fanjul V, Habtemariam A, Pizarro AM. Osmium(ii) tethered half-sandwich complexes: pH-dependent aqueous speciation and transfer hydrogenation in cells. Chem Sci 2021; 12:9287-9297. [PMID: 34349898 PMCID: PMC8278929 DOI: 10.1039/d1sc01939b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/09/2021] [Indexed: 02/04/2023] Open
Abstract
Aquation is often acknowledged as a necessary step for metallodrug activity inside the cell. Hemilabile ligands can be used for reversible metallodrug activation. We report a new family of osmium(ii) arene complexes of formula [Os(η6-C6H5(CH2)3OH)(XY)Cl]+/0 (1-13) bearing the hemilabile η6-bound arene 3-phenylpropanol, where XY is a neutral N,N or an anionic N,O- bidentate chelating ligand. Os-Cl bond cleavage in water leads to the formation of the hydroxido/aqua adduct, Os-OH(H). In spite of being considered inert, the hydroxido adduct unexpectedly triggers rapid tether ring formation by attachment of the pendant alcohol-oxygen to the osmium centre, resulting in the alkoxy tethered complex [Os(η6-arene-O-κ1)(XY)] n+. Complexes 1C-13C of formula [Os(η6:κ1-C6H5(CH2)3OH/O)(XY)]+ are fully characterised, including the X-ray structure of cation 3C. Tether-ring formation is reversible and pH dependent. Osmium complexes bearing picolinate N,O-chelates (9-12) catalyse the hydrogenation of pyruvate to lactate. Intracellular lactate production upon co-incubation of complex 11 (XY = 4-Me-picolinate) with formate has been quantified inside MDA-MB-231 and MCF7 breast cancer cells. The tether Os-arene complexes presented here can be exploited for the intracellular conversion of metabolites that are essential in the intricate metabolism of the cancer cell.
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Affiliation(s)
| | | | - Abraha Habtemariam
- IMDEA Nanociencia Faraday 9 28049 Madrid Spain
- Department of Chemistry, University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Ana M Pizarro
- IMDEA Nanociencia Faraday 9 28049 Madrid Spain
- Unidad Asociada de Nanobiotecnología CNB-CSIC-IMDEA 28049 Madrid Spain
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5
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González-Fernández R, Crochet P, Cadierno V. Half-sandwich ruthenium(ii) complexes with tethered arene-phosphinite ligands: synthesis, structure and application in catalytic cross dehydrogenative coupling reactions of silanes and alcohols. Dalton Trans 2019; 49:210-222. [PMID: 31808486 DOI: 10.1039/c9dt04421c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The preparation of the tethered arene-ruthenium(ii) complexes [RuCl2{η6:κ1(P)-C6H5(CH2)nOPR2}] (R = Ph, n = 1 (9a), 2 (9b), 3 (9c); R = iPr, n = 1 (10a), 2 (10b), 3 (10c)) from the corresponding phosphinite ligands R2PO(CH2)nPh (R = Ph, n = 1 (1a), 2 (1b), 3 (1c); R = iPr, n = 1 (2a), 2 (2b), 3 (2c)) is presented. Thus, in a first step, the treatment at room temperature of tetrahydrofuran solutions of dimers [{RuCl(μ-Cl)(η6-arene)}2] (arene = p-cymene (3), benzene (4)) with 1-2a-c led to the clean formation of the corresponding mononuclear derivatives [RuCl2(η6-p-cymene){R2PO(CH2)nPh}] (5-6a-c) and [RuCl2(η6-benzene){R2PO(CH2)nPh}] (7-8a-c), which were isolated in 66-99% yield. The subsequent heating of 1,2-dichloroethane solutions of these compounds at 120 °C allowed the exchange of the coordinated arene. The substitution process proceeded faster with the benzene derivatives 7-8a-c, from which complexes 9-10a-c were generated in 61-82% yield after 0.5-10 h of heating. The molecular structures of [RuCl2(η6-p-cymene){iPr2PO(CH2)3Ph}] (6c) and [RuCl2{η6:κ1(P)-C6H5(CH2)nOPiPr2}] (n = 1 (10a), 2 (10b), 3 (10c)) were unequivocally confirmed by X-ray diffraction methods. In addition, complexes [RuCl2{η6:κ1(P)-C6H5(CH2)nOPR2}] (9-10a-c) proved to be active catalysts for the dehydrogenative coupling of hydrosilanes and alcohols under mild conditions (r.t.). The best results were obtained with [RuCl2{η6:κ1(P)-C6H5(CH2)3OPiPr2}] (10c), which reached TOF and TON values up to 117 600 h-1 and 57 000, respectively.
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Affiliation(s)
- Rebeca González-Fernández
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles", Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain.
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6
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González-Fernández R, Crochet P, Cadierno V. Hydrophilic (η6-Arene)–Ruthenium(II) Complexes with P–OH Ligands as Catalysts for the Isomerization of Allylbenzenes and C–H Bond Arylation Reactions in Water. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rebeca González-Fernández
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
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7
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Anyushin AV, Abramov PA, Sokolov MN. The Reaction of Re3Br9 with P(CH2OH)3: Diversity of Modes of Coordination of Hydroxymethylphosphine to Clusters. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419080013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Lastra-Barreira B, Francos J, Crochet P, Cadierno V. Ruthenium(II) Complexes with η6-Coordinated 3-Phenylpropanol and 2-Phenylethanol as Catalysts for the Tandem Isomerization/Claisen Rearrangement of Diallyl Ethers in Water. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00187] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Beatriz Lastra-Barreira
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
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9
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Sokolov MN, Anyushin AV, Hernandez-Molina R, Llusar R, Basallote MG. Hydroxylated phosphines as ligands for chalcogenide clusters: self assembly, transformations and stabilization. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This contribution is a documentation of recent advances in the chemistry of chalcogenide polynuclear transition metal complexes coordinated with mono- and di-phosphines functionalized with hydroxo groups. A survey of complexes containing tris(hydroxymethyl)phosphine (THP) is presented. The influence of the alkyl chain in bidentate phosphines, bearing the P–(CH2)x–OH arms, is also analyzed. Finally, isolation and structure elucidation of the complexes with HP(OH)2, P(OH)3, As(OH)3, PhP(OH)2, stabilized by coordination to Ni(0) and Pd(0) centers embedded into chalcogenide clusters, is discussed.
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Affiliation(s)
- Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 3, 630090 Novosibirsk, Russia
- Novosibirsk State University, ul. Pirogova 2, 630090 Novosibirsk, Russia
- Kazan Federal University, 18 ul. Kremlyovskaya 420008, Kazan, Russia
| | - Alexander V. Anyushin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 3, 630090 Novosibirsk, Russia
- Novosibirsk State University, ul. Pirogova 2, 630090 Novosibirsk, Russia
| | - Rita Hernandez-Molina
- Departamento de Química, Unidad Departamental de Química Inorgánica, Universidad de La Laguna, La Laguna, Tenerife, Spain
- Instituto Universitario de Bioorganica Antonio Gonzalez, Avda Astrofis Fco, Sanchez 2, San Cristobal la Laguna 38206, Spain
| | - Rosa Llusar
- Departamento de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castelló, Spain
| | - Manuel G. Basallote
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, and Instituto de Biomoléculas, INBIO, Universidad de Cádiz, Avda. República Saharahui s/n, Puerto Real, 11510 Cádiz, Spain
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10
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Díaz-Álvarez AE, Vidal C, Suárez FJ, Díez J, Cadierno V, Crochet P. C–H versus O–H Bond Activation in Phosphino-alcohol Ligands: Synthesis of the α-Hydroxy-alkyl Ruthenium(II) Derivatives [RuCl{κ2(P,C)-Ph2PC6H4C(R)OH}(η6-arene)]. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alba E. Díaz-Álvarez
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
| | - Cristian Vidal
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
| | - Francisco J. Suárez
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
| | - Josefina Díez
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio
de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
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11
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Lastra-Barreira B, Díez J, Crochet P, Fernández I. Functionalized arene-ruthenium(II) complexes: dangling vs. tethering side chain. Dalton Trans 2013; 42:5412-20. [PMID: 23420334 DOI: 10.1039/c3dt33051f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The reactivity of compounds [RuCl2(η(6)-C6H5OCH2CH2OH)(L)] (L = phosphine or phosphite) towards the chloride abstractor AgSbF6 has been investigated. Thus, the treatment of the triphenylphosphite complex [RuCl2(η(6)-C6H5OCH2CH2OH){P(OPh)3}] with one equivalent of AgSbF6 gave rise to the formation of the dinuclear dichloro-bridged species [{Ru(μ-Cl)(η(6)-C6H5OCH2CH2OH){P(OPh)3}}2](2+) as the hexafluoroantimonate salt. On the other hand, the triphenylphosphine analog [RuCl2(η(6)-C6H5OCH2CH2OH)(PPh3)] led, under the same experimental conditions, to the di-ruthenium derivative [{RuCl(η(6)-C6H5OCH2CH2OH)(PPh3)}2(μ-Cl)][SbF6] containing only one Cl-bridge. In sharp contrast, treatment of precursors [RuCl2(η(6)-C6H5CH2CH2CH2OH)(L)] (L = P(OPh)3, PPh3, P(OEt)3) with AgSbF6 resulted in the clean formation of the tethered compounds [RuCl{η(6):κ(1)(O)-C6H5CH2CH2CH2OH}(L)][SbF6]. The differences in reactivity observed have been rationalized by theoretical calculations.
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Affiliation(s)
- Beatriz Lastra-Barreira
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Departamento de Química Orgánica e Inorgánica - IUQOEM, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
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12
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Tan YQ, Dyson PJ, Ang WH. Acetal-Functionalized RAPTA Complexes for Conjugation and Labeling. Organometallics 2011. [DOI: 10.1021/om200783r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Qian Tan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Wee Han Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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14
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Bolaño S, Plaza M, Bravo J, Castro J, Peruzzini M, Gonsalvi L, Ciancaleoni G, Macchioni A. New highly water-soluble rhodium complexes bearing 1,3,5-triaza-7-phosphaadamantane (PTA) and/or tris(hydroxymethyl) phosphine (THP). Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.05.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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15
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16
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Kayaki Y, Shimokawatoko Y, Ikariya T. Synthesis of Ruthenium(II) Complexes Containing Hydroxymethylphosphines and Their Catalytic Activities for Hydrogenation of Supercritical Carbon Dioxide. Inorg Chem 2007; 46:5791-7. [PMID: 17567002 DOI: 10.1021/ic700470n] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Ligand substitution of RuCl2[P(C6H5)3]3 and Cp*RuCl(isoprene) (Cp*=1,2,3,4,5-pentamethylcyclopentadienyl) complexes with hydroxymethylphosphines was investigated to develop new catalyst systems for CO2 hydrogenation. A reaction of P(C6H5)2CH2OH with RuCl2[P(C6H5)3]3 in CH2Cl2 gave Ru(H)Cl(CO)[P(C6H5)2CH2OH]3 (1), which was characterized by NMR spectroscopy and X-ray crystallographic analysis. An isotope labeling experiment using P(C6H5)213CH2OH indicated that the carbonyl moiety in complex 1 originated from formaldehyde formed by degradation of the hydroxymethylphosphine. Elimination of formaldehyde from PCy2CH2OH (Cy=cyclohexyl) was also promoted by treatment of RuCl2[P(C6H5)3]3 in ethanol to give RuCl2(PHCy2)4 under mild conditions. On the other hand, the substitution reaction using Cp*RuCl(isoprene) with the hydroxymethylphosphine ligands proceeded smoothly with formation of Cp*RuCl(L)2 [2a-2c; L=P(C6H5)2CH2OH, PCy(CH2OH)2, and P(CH2OH)3] in good yields. The isolable hydroxymethylphosphine complexes 1 and 2 efficiently catalyzed the hydrogenative amidation of supercritical carbon dioxide (scCO2) to N,N-dimethylformamide (DMF).
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Affiliation(s)
- Yoshihito Kayaki
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Čubrilo J, Hartenbach I, Lissner F, Schleid T, Niemeyer M, Winter RF. p-Cymene ruthenium thioether complexes. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.11.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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