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Liu X, Liu S, Wang Q, Zhou G, Yao L, Ouyang Q, Jiang R, Lan Y, Chen W. Highly Regio- and Enantioselective Hydrogenation of Conjugated α-Substituted Dienoic Acids. Org Lett 2020; 22:3149-3154. [PMID: 32216288 DOI: 10.1021/acs.orglett.0c00915] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Xian Liu
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
| | - Song Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Quanjun Wang
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
| | - Gang Zhou
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
| | - Lin Yao
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Ru Jiang
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Weiping Chen
- School of Pharmacy, Fourth Military Medical University, 169 Changle West Road, Xi’an 710032, China
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2
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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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3
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Anyushin AV, Kompan’kov NB, Abramov PA, Sokolov MN. Polynuclear Sulfide-Bridging Rh(III) Complexes with P(CH2OH)3. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619070072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Kotova M, Vyskočilová E, Červený L. Highly Selective Hydrogenation of Butyl Sorbate to Butyl cis-hex-3-Enoate Using Cp*-Ruthenium (II) Catalyst. Catal Letters 2017. [DOI: 10.1007/s10562-017-2084-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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A novel water-soluble sulfide cluster of iron: synthesis, properties, and intercalation into molybdenum disulfide. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1280-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Tris(hydroxymethyl)phosphine, P(CH 2 OH) 3 – A convenient and effective new reagent for the fixation of protein samples for SEM imaging. Micron 2016; 89:28-33. [DOI: 10.1016/j.micron.2016.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/12/2016] [Accepted: 06/29/2016] [Indexed: 11/22/2022]
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7
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Anyushin AV, Abramov PA, Kompankov NB, Sokolov MN. Preparation and crystal structure of [Ru2(μ-Cl)3(P(CH2OH)3)6]Cl. RUSS J INORG CHEM+ 2015. [DOI: 10.1134/s0036023615070025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Shvartsbart A, Smith AB. The daphniphyllum alkaloids: total synthesis of (-)-calyciphylline N. J Am Chem Soc 2015; 137:3510-9. [PMID: 25756504 PMCID: PMC4394112 DOI: 10.1021/ja503899t] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Indexed: 01/14/2023]
Abstract
Presented here is a full account on the development of a strategy culminating in the first total synthesis of the architecturally complex daphniphyllum alkaloid, (-)-calyciphylline N. Highlights of the approach include a highly diastereoselective, intramolecular Diels-Alder reaction of a silicon-tethered acrylate; an efficient Stille carbonylation of a sterically encumbered vinyl triflate; a one-pot Nazarov cyclization/proto-desilylation sequence; and the chemoselective hydrogenation of a fully substituted diene ester.
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Affiliation(s)
| | - Amos B. Smith
- Department of Chemistry,
Laboratory for Research on the Structure of Matter, and Monell Chemical
Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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9
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Anyushin AV, Sokolov MN, Virovets AV, Fedin VP. Crystal structure of K[Pd(P(CH2OH)3)Cl3]. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615020250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Labed I, Labed A, Sun Y, Jiang F, Achard M, Dérien S, Kabouche Z, Bruneau C. [Cp*Ru]-catalyzed selective coupling/hydrogenation. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01303d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Selective coupling and hydrogenation catalyzed by [Cp*Ru] have been achieved affording valuable polyfunctionalized cyclic enamide derivatives.
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Affiliation(s)
- I. Labed
- University of Constantine 1
- Department of Chemistry
- Laboratory of Therapeutic Substances Obtention (LOST)
- Chaabet Ersas Campus
- 25000 Constantine
| | - A. Labed
- University of Constantine 1
- Department of Chemistry
- Laboratory of Therapeutic Substances Obtention (LOST)
- Chaabet Ersas Campus
- 25000 Constantine
| | - Y. Sun
- UMR6226 CNRS
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- OMC: Organometallics: Materials and Catalysis
- Campus de Beaulieu
| | - F. Jiang
- UMR6226 CNRS
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- OMC: Organometallics: Materials and Catalysis
- Campus de Beaulieu
| | - M. Achard
- UMR6226 CNRS
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- OMC: Organometallics: Materials and Catalysis
- Campus de Beaulieu
| | - S. Dérien
- UMR6226 CNRS
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- OMC: Organometallics: Materials and Catalysis
- Campus de Beaulieu
| | - Z. Kabouche
- University of Constantine 1
- Department of Chemistry
- Laboratory of Therapeutic Substances Obtention (LOST)
- Chaabet Ersas Campus
- 25000 Constantine
| | - C. Bruneau
- UMR6226 CNRS
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- OMC: Organometallics: Materials and Catalysis
- Campus de Beaulieu
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11
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Horváth H, Kathó Á, Udvardy A, Papp G, Szikszai D, Joó F. New Water-Soluble Iridium(I)–N-Heterocyclic Carbene–Tertiary Phosphine Mixed-Ligand Complexes as Catalysts of Hydrogenation and Redox Isomerization. Organometallics 2014. [DOI: 10.1021/om5006148] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Henrietta Horváth
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
| | - Ágnes Kathó
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
| | - Antal Udvardy
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
| | - Gábor Papp
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
| | - Dorina Szikszai
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
| | - Ferenc Joó
- MTA-DE Homogeneous Catalysis and Reaction Mechanisms
Research Group and ‡Department of Physical Chemistry, University of Debrecen, P.O. Box 7, H-4010 Debrecen, Hungary
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12
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Birkbeck AA, Marquet X, Millet P, Pamingle H. An Economical and Practical Synthesis ofrac-(Z)-β-Santalol: Application of a Scriabine-Inspired Reaction to Alkenes Results in the One-Step Preparation of a Key Intermediate. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Anyushin AV, Sokolov MN, Virovets AV, Fedin VP. Crystal structure of [Pt3S2(P(CH2OH)3)6](PF6)(OH)·H2O. J STRUCT CHEM+ 2013. [DOI: 10.1134/s002247661303027x] [Citation(s) in RCA: 7] [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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14
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Anyushin AV, Abramov PA, Kompankov NB, Sokolov MN, Fedin VP. Ligand condensation of P(CH2OH)3: Synthesis and structure of [Ni3S2{(CH2OH)2PCH2OP(CH2OH)2}3][Mo6Cl14] · 0.8H2O. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412090011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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16
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Basallote MG, Fernández-Trujillo MJ, Pino-Chamorro JÁ, Beltrán TF, Corao C, Llusar R, Sokolov M, Vicent C. Water-soluble Mo3S4 clusters bearing hydroxypropyl diphosphine ligands: synthesis, crystal structure, aqueous speciation, and kinetics of substitution reactions. Inorg Chem 2012; 51:6794-802. [PMID: 22668127 DOI: 10.1021/ic300517g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The [Mo(3)S(4)Cl(3)(dhprpe)(3)](+) (1(+)) cluster cation has been prepared by reaction between Mo(3)S(4)Cl(4)(PPh(3))(3) (solvent)(2) and the water-soluble 1,2-bis(bis(hydroxypropyl)phosphino)ethane (dhprpe, L) ligand. The crystal structure of [1](2)[Mo(6)Cl(14)] has been determined by X-ray diffraction methods and shows the typical incomplete cuboidal structure with a capping and three bridging sulfides. The octahedral coordination around each metal center is completed with a chlorine and two phosphorus atoms of the diphosphine ligand. Depending on the pH, the hydroxo group of the functionalized diphosphine can substitute the chloride ligands and coordinate to the cluster core to give new clusters with tridentate deprotonated dhprpe ligands of formula [Mo(3)S(4)(dhprpe-H)(3)](+) (2(+)). A detailed study based on stopped-flow, (31)P{(1)H} NMR, and electrospray ionization mass spectrometry techniques has been carried out to understand the behavior of acid-base equilibria and the kinetics of interconversion between the 1(+) and the 2(+) forms. Both conversion of 1(+) to 2(+) and its reverse process occur in a single kinetic step, so that reactions proceed at the three metal centers with statistically controlled kinetics. The values of the rate constants under different conditions are used to discuss on the mechanisms of opening and closing of the chelate rings with coordination or dissociation of chloride.
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Affiliation(s)
- Manuel G Basallote
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real, 11510 Cádiz, Spain.
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17
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Dupau P. Ruthenium-Catalyzed Selective Hydrogenation for Flavor and Fragrance Applications. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_24] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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18
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Sokolov MN, Anyushin AV, Virovets AV, Mirzaeva IV, Zakharchuk NF, Fedin VP. Water-soluble Pt3S2 cluster with phosphine ligands. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.06.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Fehr C, Magpantay I, Vuagnoux M, Dupau P. The Synthesis of (Z)-Trisubstituted Allylic Alcohols by the Selective 1,4-Hydrogenation of Dienol Esters: Improved Synthesis of (−)-β-Santalol. Chemistry 2010; 17:1257-60. [DOI: 10.1002/chem.201002729] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Indexed: 11/09/2022]
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20
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21
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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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22
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Shaughnessy KH. Hydrophilic ligands and their application in aqueous-phase metal-catalyzed reactions. Chem Rev 2009; 109:643-710. [PMID: 19152291 DOI: 10.1021/cr800403r] [Citation(s) in RCA: 375] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kevin H Shaughnessy
- Department of Chemistry and the Center for Green Manufacturing, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA.
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23
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Udvardy A, Kathó Á. Hydrogenation of sorbic acid in mono- and biphasic systems catalyzed by Rh(I)- phosphine complexes. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/s11144-008-5365-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Algarra AG, Basallote MG, Fernández-Trujillo MJ, Guillamón E, Llusar R, Segarra MD, Vicent C. Synthesis, Crystal Structure, Aqueous Speciation, and Kinetics of Substitution Reactions in a Water-Soluble Mo3S4 Cluster Bearing Hydroxymethyl Diphosphine Ligands. Inorg Chem 2007; 46:7668-77. [PMID: 17691727 DOI: 10.1021/ic701082p] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The [Mo3S4Cl3(dhmpe)3]Cl ([1]Cl) cluster has been prepared from [Mo3S7Cl6]2- and the water-soluble 1,2-bis(bis(hydroxymethyl)-phosphino)ethane (dhmpe, L) ligand. The crystal structure has been determined by X-ray diffraction methods and shows the incomplete cuboidal structure typical of the M3Q4 clusters (M=Mo, W; Q=S, Se), with a capping sulfide ligand to the three metal centers and the other three sulfides acting as bridges between two Mo atoms. The octahedral coordination around each metal center is completed with a chlorine and two phosphorus atoms of one L ligand. The chemistry of aqueous solutions of [1]Cl is dominated by the formation of the [Mo3S4L(L-H)2(H2O)]2+ complex ([2]2+), where the three chlorides have been replaced by one water molecule and two alkoxo groups of two different dhmpe ligands, thus leading to a solution structure where the three metal centers are not equivalent. A detailed study based on stopped-flow, 31P{1H} NMR, and electrospray ionization mass spectrometry techniques has been carried out to understand the behavior of [2]2+ in aqueous solution. In this way, it has been established that the addition of an excess of X- (Cl-, SCN-) leads to [Mo3S4X3(dhmpe)3]+ complexes in three resolved kinetic steps that correspond to the sequential coordination of X- at the three metal centers. However, whereas the first two steps involve the opening of the chelate rings formed with the alkoxo groups of the dhmpe ligands, the third one corresponds to the substitution of the coordinated water molecule. These results demonstrate that the asymmetry introduced by the closure of chelate rings at only two of the three Mo centers makes the kinetics of the reaction deviate significantly from the statistical behavior typically associated with M3Q4 clusters. The results obtained for the reaction of [2]2+ with acid and base are also described, and they complete the picture of the aqueous speciation of this cluster.
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Affiliation(s)
- Andrés G Algarra
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real, Spain
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25
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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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26
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Burrows AD, Dodds D, Kirk AS, Lowe JP, Mahon MF, Warren JE, Whittlesey MK. Substitution and derivatization reactions of a water soluble iron(ii) complex containing a self-assembled tetradentate phosphine ligand. Dalton Trans 2007:570-80. [PMID: 17225909 DOI: 10.1039/b614726g] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Facile substitution reactions of the two water ligands in the hydrophilic tetradentate phosphine complex cis-[Fe{(HOCH2)P{CH2N(CH2P(CH2OH)2)CH2}2P(CH2OH)}(H2O)2](SO4) (abbreviated to [Fe(L1)(H2O)2](SO4), 1) take place upon addition of Cl-, NCS-, N3(-), CO3(2-) and CO to give [Fe(L1)X2] (2, X = Cl; 4, X = NCS; 5, X=N3), [Fe(L1)(kappa2-O(2)CO)], 6 and [Fe(L1)(CO)2](SO4), 7. The unsymmetrical mono-substituted intermediates [Fe(L1)(H2O)(CO)](SO(4)) and [Fe(L(1))(CO)(kappa(1)-OSO(3))] (8/9) have been identified spectroscopically en-route to 7. Treatment of 1 with acetic anhydride affords the acylated derivative [Fe{(AcOCH2)P{CH2N(CH2P(CH2OAc)2)CH2}2P(CH2OAc)}(kappa2-O(2)SO2)] (abbreviated to [Fe(L2)(kappa2-O(2)SO2)], 10), which has increased solubility over 1 in both organic solvents and water. Treatment of 1 with glycine does not lead to functionalisation of L1, but substitution of the aqua ligands occurs to form [Fe(L(1))(NH(2)CH(2)CO(2)-kappa(2)N,O)](HSO(4)), 11. Compound 10 reacts with chloride to form [Fe(L(2))Cl(2)] 12, and 12 reacts with CO in the presence of NaBPh4 to form [Fe(L2)Cl(CO)](BPh4) 13b. Both of the chlorides in 12 are substituted on reaction with NCS- and N3(-) to form [Fe(L2)(NCS)2] 14 and [Fe(L2)(N3)2] 15, respectively. Complexes 2.H2O, 4.2H2O, 5.0.812H2O, 6.1.7H2O, 7.H2O, 10.1.3CH3C(O)CH3, 12 and 15.0.5H2O have all been crystallographically characterised.
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Affiliation(s)
- Andrew D Burrows
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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27
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Blume R, Christen W, Niehus H. Reactivity of Oxide Precursor States on Ru(0001). J Phys Chem B 2006; 110:13912-9. [PMID: 16836341 DOI: 10.1021/jp061937a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Smooth and defect-rich Ru(0001) surfaces prepared under ultrahigh-vacuum (UHV) conditions have been loaded with oxygen under high-pressure (p </= 1 bar) and low-temperature (T < 550 K) conditions. On these surfaces the CO oxidation reaction has been investigated by means of thermal desorption spectroscopy (TDS), ultraviolet photoelectron spectroscopy (UPS) and reactive molecular beam scattering (RMBS). Both surfaces are oxide-free and exhibit a high reactivity. The maximum CO/CO(2) conversion probability observed for a defect-rich Ru(0001) surface amounts to 6 x 10(-3) and is comparable to that of a surface covered with rutile RuO(2)(110) domains. RMBS experiments led to the identification of three different reaction channels. The first and second channel is related to CO adsorbing at oxygen-free defect sites and follow the Langmuir-Hinshelwood mechanism. Whereas the first reaction channel is already observed at room temperature, the second is thermally activated, contributing to the CO(2) yield only for reaction temperatures above 400 K. The third channel is due to the recombination of CO molecules with oxygen atoms located in smooth areas of the surface undisturbed by defects. This reaction channel is thermally activated as well.
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Affiliation(s)
- Raoul Blume
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany.
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28
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Cadierno V, Crochet P, García-Garrido SE, Gimeno J. Water-soluble ruthenium(ii) catalysts [RuCl2(η6-arene){P(CH2OH)3}] for isomerization of allylic alcohols and alkyne hydration. Dalton Trans 2004:3635-41. [PMID: 15510287 DOI: 10.1039/b411177j] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novel water-soluble ruthenium(II) complexes [RuCl(2)(eta(6)-arene)[P(CH(2)OH)(3)]]2a-c and [RuCl(eta(6)-arene)[P(CH(2)OH)(3)](2)][Cl]3a-c have been prepared in high yields by reaction of dimers [[Ru(eta(6)-arene)(micro-Cl)Cl](2)](arene = C(6)H(6)1a, p-cymene 1b, C(6)Me(6)1c) with two or four equivalents of P(CH(2)OH)(3), respectively. Complexes 2/3a-c are active catalysts in the redox isomerization of several allylic alcohols into the corresponding saturated carbonyl compounds under water/n-heptane biphasic conditions. Among them, the neutral derivatives [RuCl(2)(eta(6)-C(6)H(6))[P(CH(2)OH)(3)]]2a and [RuCl(2)(eta(6)-p-cymene)[P(CH(2)OH)(3)]]2b show the highest activities (TOF values up to 600 h(-1); TON values up to 782). Complexes 2/3a-c also catalyze the hydration of terminal alkynes.
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Affiliation(s)
- Victorio Cadierno
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica Enrique Moles(Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071, Oviedo, Spain
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29
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Alley SR, Henderson W. New ferrocene-derived hydroxymethylphosphines: FcP(CH2OH)2 [Fc=(η5-C5H5)Fe(η5-C5H4)] and the dppf analogue 1,1′-Fc′[P(CH2OH)2]2 [Fc′=Fe(η5-C5H4)2]. INORG CHEM COMMUN 2001. [DOI: 10.1016/s1387-7003(01)00309-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Kayaki Y, Suzuki T, Ikariya T. Water-Soluble Trialkylphosphine-Ruthenium(II) Complexes as Efficient Catalysts for Hydrogenation of Supercritical Carbon Dioxide. CHEM LETT 2001. [DOI: 10.1246/cl.2001.1016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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31
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Rath RK, Nethaji M, Chakravarty AR. Transfer hydrogenation of acetophenone promoted by (arene)ruthenium(II) reduced Schiff base complexes: an X-ray structure of [(η6-p-cymene)RuCl(OC6H4-2-CH2NHC6H4-p-Me)]. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00894-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Synthesis, crystal structure and catalytic properties of (p-cymene)ruthenium(II) azophenol complexes: azophenyl to azophenol conversion by oxygen insertion to a rutheniumcarbon bond. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)01055-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Ionic liquids are salts that are liquid at low temperature (<100 degrees C) which represent a new class of solvents with nonmolecular, ionic character. Even though the first representative has been known since 1914, ionic liquids have only been investigated as solvents for transition metal catalysis in the past ten years. Publications to date show that replacing an organic solvent by an ionic liquid can lead to remarkable improvements in well-known processes. Ionic liquids form biphasic systems with many organic product mixtures. This gives rise to the possibility of a multiphase reaction procedure with easy isolation and recovery of homogeneous catalysts. In addition, ionic liquids have practically no vapor pressure which facilitates product separation by distillation. There are also indications that switching from a normal organic solvent to an ionic liquid can lead to novel and unusual chemical reactivity. This opens up a wide field for future investigations into this new class of solvents in catalytic applications.
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Affiliation(s)
- P Wasserscheid
- Institut für Technische Chemie und Makromolekulare Chemie der RWTH Aachen Worringer Weg 1, 52074 Aachen (Germany)
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Steines S, Wasserscheid P, Drießen-Hö:lscher B. An Ionic Liquid as Catalyst Medium for Stereoselective Hydrogenations of Sorbic Acid with Ruthenium Complexes. ACTA ACUST UNITED AC 2000. [DOI: 10.1002/(sici)1521-3897(200004)342:4<348::aid-prac348>3.0.co;2-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Kathó Á, Carmona D, Viguri F, Remacha CD, Kovács J, Joó F, Oro LA. Enantioselective hydride transfer hydrogenation of ketones catalyzed by [(η6-p-cymene)Ru(amino acidato)Cl] and [(η6-p-cymene)Ru(amino acidato)]3(BF4)3 complexes. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(99)00433-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Maynard HD, Grubbs RH. Purification technique for the removal of ruthenium from olefin metathesis reaction products. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00726-1] [Citation(s) in RCA: 230] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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