51
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Travia NE, Xu Z, Keith JM, Ison EA, Fanwick PE, Hall MB, Abu-Omar MM. Observation of Inductive Effects That Cause a Change in the Rate-Determining Step for the Conversion of Rhenium Azides to Imido Complexes. Inorg Chem 2011; 50:10505-14. [DOI: 10.1021/ic2017853] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas E. Travia
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Zhenggang Xu
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Jason M. Keith
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Elon A. Ison
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Phillip E. Fanwick
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Michael B. Hall
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Mahdi M. Abu-Omar
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
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52
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Grünwald KR, Saischek G, Volpe M, Mösch-Zanetti NC. Mechanistic Insight into Olefin Epoxidation Catalyzed by Rhenium(V) Oxo Complexes That Contain Pyridazine-Based Ligands. Inorg Chem 2011; 50:7162-71. [DOI: 10.1021/ic200756r] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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53
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54
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Lilly CP, Boyle PD, Ison EA. Synthesis and characterization of oxorhenium(v) diamido pyridine complexes that catalyze oxygen atom transfer reactions. Dalton Trans 2011; 40:11815-21. [DOI: 10.1039/c1dt11143d] [Citation(s) in RCA: 19] [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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55
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AlHokbany NS, Mahfouz RM. Spectroscopic and Thermal-Gravimetric Investigation of two New Rhenium (V) Ionic Liquid Complexes. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12828399425330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Rhenium (V) ionic liquids of formula [BzEt3N][ReOCl3 (MBT)(tri)] and [Et3N][ReOCl3(amino)] (BzEt3N= benzyltriethyl-ammonuim, Et3N=triethylammonium, MBT=mercaptobenzothiazole, Tri=1, 2, 4-triazole and amino= amino thiazole) were synthesised by reaction between [BzEt3N][ReOCl4] and [Et3N][ReOCl4] precursors and free ligands, in the presence of triethylamine. These ionic liquid complexes have been characterised by elemental analysis, spectroscopy (IR, 1H–13C NMR, MS) and thermogravimetric studies. Geometry optimisation of [Et3N][ReOCl3(amino)] has been carried out using DFT and the predicted IR spectrum of the geometrically-optimised structure shows good agreement with experimental values.
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Affiliation(s)
- Noura S. AlHokbany
- King Saud University, Department of Chemistry, College of Science, PO Box 2455, Riyadh, 11451 Kingdom of Saudi Arabia
| | - Refaat M. Mahfouz
- King Saud University, Department of Chemistry, College of Science, PO Box 2455, Riyadh, 11451 Kingdom of Saudi Arabia
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56
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Shaikh KI, Madsen CS, Nielsen LJ, Jørgensen AS, Nielsen H, Petersen M, Nielsen P. Synthesis and Molecular Modelling of Double-Functionalised Nucleosides with Aromatic Moieties in the 5′-(S)-Position and Minor Groove Interactions in DNA Zipper Structures. Chemistry 2010; 16:12904-19. [DOI: 10.1002/chem.201001253] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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57
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Novel rhenium(II) complex of 2,3,5,6-tetra(2-pyridyl)pyrazine — Synthesis, X-ray studies, spectroscopic characterization and DFT calculations. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.04.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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58
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Yue S, Li J, Yu ZH, Wang Q, Gu XP, Zang SL. Synthesis, structure, and catalytic application of a new (3-methoxy-N-salicylidene)aniline—derived Schiff base complex of methyltrioxorhenium. RUSS J COORD CHEM+ 2010. [DOI: 10.1134/s1070328410070122] [Citation(s) in RCA: 3] [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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59
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Machura B, Świetlicka A, Wolff M, Kruszynski R. Novel rhenium oxocomplexes of indazole-3-carboxylic acid – Synthesis, X-ray studies, spectroscopic characterization and DFT calculations. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.03.023] [Citation(s) in RCA: 6] [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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60
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Crucianelli M, Saladino R, De Angelis F. Methyltrioxorhenium catalysis in nonconventional solvents: a great catalyst in a safe reaction medium. CHEMSUSCHEM 2010; 3:524-540. [PMID: 20391453 DOI: 10.1002/cssc.201000022] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The requirement that chemical processes are sustainable, reflected in waste reduction and the use of safe reagents and reaction conditions, is becoming even more stringent as a result of pressure by society and governments to preserve the environment and protect human health. Catalysis offers numerous benefits related to green chemistry, including lowered energetic reaction requirements; catalytic, rather than stoichiometric, amounts of materials; increased selectivity; lowered consumption of processing and separation agents; and, in many cases, the use of less-toxic compounds. Our research group has for a long time been studying methyltrioxorhenium in the oxyfunctionalization of different substrates, by using H(2)O(2) or its urea-hydrogen peroxide complex as the primary oxidant. In this Review paper we aim to provide a full literature account on the catalytic activity and selectivity of methyltrioxorhenium in the oxyfunctionalization reaction, either in nonconventional solvents or under solvent-free conditions, with a particular emphasis on the use of ionic liquids as green reaction media.
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Affiliation(s)
- Marcello Crucianelli
- Dipartimento di Chimica, Ingegneria Chimica e Materiali, Università dell'Aquila, Via Vetoio, 67100 L'Aquila, Italy.
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61
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Lippert CA, Soper JD. Deoxygenation of Nitroxyl Radicals by Oxorhenium(V) Complexes with Redox-Active Ligands. Inorg Chem 2010; 49:3682-4. [DOI: 10.1021/ic9024684] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cameron A. Lippert
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - Jake D. Soper
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
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62
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Lippert CA, Arnstein SA, Sherrill CD, Soper JD. Redox-Active Ligands Facilitate Bimetallic O2 Homolysis at Five-Coordinate Oxorhenium(V) Centers. J Am Chem Soc 2010; 132:3879-92. [DOI: 10.1021/ja910500a] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cameron A. Lippert
- School of Chemistry and Biochemistry, Center for Computational Molecular Science and Technology, and College of Computing, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - Stephen A. Arnstein
- School of Chemistry and Biochemistry, Center for Computational Molecular Science and Technology, and College of Computing, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - C. David Sherrill
- School of Chemistry and Biochemistry, Center for Computational Molecular Science and Technology, and College of Computing, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - Jake D. Soper
- School of Chemistry and Biochemistry, Center for Computational Molecular Science and Technology, and College of Computing, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
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63
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Machura B, Mroziński J, Kusz J. Synthesis, characterization and molecular structure of Re(III) complexes containing 2-benzoylpyridine. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2009.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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64
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Yamazaki S. An effective procedure for the synthesis of acid-sensitive epoxides: Use of 1-methylimidazole as the additive on methyltrioxorhenium-catalyzed epoxidation of alkenes with hydrogen peroxide. Org Biomol Chem 2010; 8:2377-85. [DOI: 10.1039/b926575a] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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65
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Herbert M, Montilla F, Moyano R, Pastor A, Álvarez E, Galindo A. Olefin epoxidations in the ionic liquid [C4mim][PF6] catalysed by oxodiperoxomolybdenum species in situ generated from molybdenum trioxide and urea–hydrogen peroxide: The synthesis and molecular structure of [Mo(O)(O2)2(4-MepyO)2]·H2O. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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66
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Feng Y, Aponte J, Houseworth PJ, Boyle PD, Ison EA. Synthesis of Oxorhenium(V) Complexes with Diamido Amine Ancillary Ligands and Their Role in Oxygen Atom Transfer Catalysis. Inorg Chem 2009; 48:11058-66. [DOI: 10.1021/ic901434u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuee Feng
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204
| | - Joel Aponte
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204
| | - Paul J. Houseworth
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204
| | - Paul D. Boyle
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204
| | - Elon A. Ison
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204
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67
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Ziegler JE, Zdilla MJ, Evans AJ, Abu-Omar MM. H2-Driven Deoxygenation of Epoxides and Diols to Alkenes Catalyzed by Methyltrioxorhenium. Inorg Chem 2009; 48:9998-10000. [PMID: 19807132 DOI: 10.1021/ic901792b] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeanette E. Ziegler
- Brown Laboratory, The Center for Catalytic Conversion of Biomass to Biofuels (C3Bio), Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907
| | - Michael J. Zdilla
- Brown Laboratory, The Center for Catalytic Conversion of Biomass to Biofuels (C3Bio), Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907
| | - Andrew J. Evans
- Brown Laboratory, The Center for Catalytic Conversion of Biomass to Biofuels (C3Bio), Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907
| | - Mahdi M. Abu-Omar
- Brown Laboratory, The Center for Catalytic Conversion of Biomass to Biofuels (C3Bio), Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907
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68
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Reactivity of [ReOX3(PPh3)2] and [ReOX3(AsPh3)2] towards 2-(2-hydroxyphenyl)-1H-benzimidazole: Synthesis, X-ray studies, spectroscopic characterization and DFT calculations for [ReOX2(hpb)(EPh3)] and [ReO(OMe)(hpb)2]·MeCN. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.06.090] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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69
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Machura B, Mroziński J, Kruszynski R, Kusz J. Coordination chemistry of di-2-pyridylketone. Synthesis, spectroscopic investigations, X-ray studies and DFT calculations of Re(III) and Re(V) complexes. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.06.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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70
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Machura B, Wolff M, Kruszynski R, Mroziński J, Kusz J. Novel rhenium(III) complexes with the picolinate ligand: Synthesis, spectroscopic investigations, X-ray structures and DFT calculations for [ReX2(pic)(PPh3)2] complexes. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.05.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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71
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Machura B, Wolff M, Świtlicka A, Kruszynski R, Kusz J. Nucleophilic addition of water to 1-isoquinolinyl phenyl ketone. The synthesis, spectroscopic investigation, crystal and molecular structure and DFT calculations of [ReOBr2(iquinpk-OH)(PPh3)]. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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72
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Zhou MD, Jain KR, Günyar A, Baxter PNW, Herdtweck E, Kühn FE. Bidentate Lewis Base Adducts of Methyltrioxidorhenium(VII): Ligand Influence on Catalytic Performance and Stability. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900260] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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73
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Smolentsev G, Guilera G, Tromp M, Pascarelli S, Soldatov AV. Local structure of reaction intermediates probed by time-resolved x-ray absorption near edge structure spectroscopy. J Chem Phys 2009; 130:174508. [DOI: 10.1063/1.3125940] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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74
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Machura B, Wolff M, Kruszynski R, Kusz J. Novel oxorhenium complexes with 2-(2′-hydoxy-5′-methylphenyl)benzotriazolato ligand. X-ray studies, spectroscopic characterization and DFT calculations. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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75
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Yin G, Busch DH. Mechanistic Details to Facilitate Applications of an Exceptional Catalyst, Methyltrioxorhenium: Encouraging Results from Oxygen-18 Isotopic Probes. Catal Letters 2009. [DOI: 10.1007/s10562-009-9855-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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76
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Karlsson E, Privalov T. Oxidation of Ethers, Alcohols, and Unfunctionalized Hydrocarbons by the Methyltrioxorhenium/H2O2System: A Computational Study on Catalytic CH Bond Activation. Chemistry 2009; 15:1862-9. [DOI: 10.1002/chem.200801493] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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77
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Yamazaki S. An efficient organic solvent-free methyltrioxorhenium-catalyzed epoxidation of alkenes with hydrogen peroxide. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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78
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Cationic oxorhenium chiral salen complexes for asymmetric hydrosilylation and kinetic resolution of alcohols. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.11.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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79
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A (salicylidene)aniline derived Schiff-base adduct of methyltrioxorhenium(VII)–Cis-and trans-coordination of the ligand. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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80
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Novel oxorhenium complexes with 2-(2′-hydroxyphenyl)-2-benzothiazolinato ligand: X-ray studies, spectroscopic characterization and DFT calculations. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.02.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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81
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Machura B, Miłek J, Kruszynski R, Kusz J, Mroziński J. Synthesis, spectroscopic characterization, crystal and molecular structure of [ReOX2(bopyH)(PPh3)] complexes: DFT calculations for [ReOCl2(bopyH)(PPh3)]. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.12.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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82
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Synthesis and catalytic applications of chiral monomeric organomolybdenum(VI) and organorhenium(VII) oxides in homogeneous and heterogeneous phase. Coord Chem Rev 2008. [DOI: 10.1016/j.ccr.2007.10.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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83
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Cardona F, Bonanni M, Soldaini G, Goti A. One-pot synthesis of nitrones from primary amines and aldehydes catalyzed by methyltrioxorhenium. CHEMSUSCHEM 2008; 1:327-332. [PMID: 18605098 DOI: 10.1002/cssc.200700156] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
One-pot condensation/oxidation of primary amines and aldehydes using urea-hydrogen peroxide (UHP) as the stoichiometric oxidant in the presence of methyltrioxorhenium (MTO) as catalyst affords nitrones in a simple and regioselective manner. UHP is a practical and safe source of H2O2, and its use here instead of aqueous H2O2 solutions also simplifies greatly the workup procedure as extractions with organic solvents can be avoided. Typically, at the end of the reaction the solid urea is simply filtered off. From a sustainability point of view, this one-pot synthesis is simple to perform, takes place under mild conditions, has a high atom economy, and releases water as the only by-product.
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Affiliation(s)
- Francesca Cardona
- Department of Organic Chemistry U. Schiff Laboratory of Design, Synthesis and Study of Biologically Active Heterocycles (HeteroBioLab), University of Florence, Sesto Fiorentino, Italy
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84
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V. Ryzhakov A, L. Rodina L. Recent Trends in the Chemistry of Molecular Complexes of Heteroaromatic N-Oxides. HETEROCYCLES 2008. [DOI: 10.3987/rev-08-630] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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85
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Gonzales JM, Distasio R, Periana RA, Goddard WA, Oxgaard J. Methylrhenium Trioxide Revisited: Mechanisms for Nonredox Oxygen Insertion in an M−CH3 Bond. J Am Chem Soc 2007; 129:15794-804. [DOI: 10.1021/ja0714742] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jason M. Gonzales
- Contribution from the Materials and Process Simulation Center, Beckman Institute (139-79), Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, and The Scripps Research Institute, Scripps Florida, 5353 Parkside Drive, Bldg T2, Office 205, Jupiter, Florida 33458
| | - Robert Distasio
- Contribution from the Materials and Process Simulation Center, Beckman Institute (139-79), Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, and The Scripps Research Institute, Scripps Florida, 5353 Parkside Drive, Bldg T2, Office 205, Jupiter, Florida 33458
| | - Roy A. Periana
- Contribution from the Materials and Process Simulation Center, Beckman Institute (139-79), Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, and The Scripps Research Institute, Scripps Florida, 5353 Parkside Drive, Bldg T2, Office 205, Jupiter, Florida 33458
| | - William A. Goddard
- Contribution from the Materials and Process Simulation Center, Beckman Institute (139-79), Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, and The Scripps Research Institute, Scripps Florida, 5353 Parkside Drive, Bldg T2, Office 205, Jupiter, Florida 33458
| | - Jonas Oxgaard
- Contribution from the Materials and Process Simulation Center, Beckman Institute (139-79), Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, and The Scripps Research Institute, Scripps Florida, 5353 Parkside Drive, Bldg T2, Office 205, Jupiter, Florida 33458
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86
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Drees M, Strassner T. Mechanism of the MoO2Cl2-Catalyzed Hydrosilylation: A DFT Study. Inorg Chem 2007; 46:10850-9. [DOI: 10.1021/ic7017314] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Markus Drees
- Technische Universitaet Dresden, Professur fuer Physikalische Organische Chemie, Bergstr. 66, D-01062 Dresden, Germany
| | - Thomas Strassner
- Technische Universitaet Dresden, Professur fuer Physikalische Organische Chemie, Bergstr. 66, D-01062 Dresden, Germany
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87
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Stanciu C, Jones ME, Fanwick PE, Abu-Omar MM. Multi-electron activation of dioxygen on zirconium(IV) to give an unprecedented bisperoxo complex. J Am Chem Soc 2007; 129:12400-1. [PMID: 17887680 DOI: 10.1021/ja075396u] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Corneliu Stanciu
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, USA
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88
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Herbert M, Galindo A, Montilla F. Catalytic epoxidation of cyclooctene using molybdenum(VI) compounds and urea-hydrogen peroxide in the ionic liquid [bmim]PF6. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2006.10.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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89
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Chung LW, Lee HG, Lin Z, Wu YD. Computational study on the reaction mechanism of hydrosilylation of carbonyls catalyzed by high-valent rhenium(V)-di-oxo complexes. J Org Chem 2007; 71:6000-9. [PMID: 16872182 DOI: 10.1021/jo060654b] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Density functional theory (DFT) calculations have been performed to elucidate the reaction mechanism of hydrosilylation of carbonyl compounds catalyzed by high-valent rhenium(V)-di-oxo complexes ReO2I(PR3)2 (R = Me, Ph). The calculations suggest that the most favorable mechanism involves the rate-determining dissociative [2 + 2] addition of the Si-H bond across a Re=O bond to form a Re(V) hydrido siloxy intermediate; this is followed by carbonyl coordination, reduction of the carbonyl, rearrangement, and final intramolecular nucleophilic attack from the alkoxy group to the silyl center (dissociative retro-[2 + 2] addition). It was also found that the additional oxo ligand in the ReO2I(PR3)2 complexes promotes the [2 + 2] addition across the rhenium-oxo bond both kinetically and thermodynamically, as compared to the neutral rhenium(V)-mono-oxo complex ReOCl3(PMe3)2. The effect of different silanes on the [2 + 2] addition barriers is also studied.
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Affiliation(s)
- Lung Wa Chung
- Department of Chemistry and Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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90
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Costa PJ, Romão CC, Fernandes AC, Royo B, Reis PM, Calhorda MJ. Catalyzing aldehyde hydrosilylation with a molybdenum(VI) complex: a density functional theory study. Chemistry 2007; 13:3934-41. [PMID: 17330316 DOI: 10.1002/chem.200601699] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
[MoCl(2)O(2)] catalyzes the hydrosilylation reaction of aldehydes and ketones, as well as the reduction of other related groups, in apparent contrast to its known behavior as an oxidation catalyst. In this work, the mechanism of this reaction is studied by means of density functional theory calculations using the B3LYP functional complemented by experimental data. We found that the most favorable pathway to the first step, the Si--H activation, is a [2+2] addition to the Mo=O bond, in agreement with previous and related work. The stable intermediate that results is a distorted-square-pyramidal hydride complex. In the following step, the aldehyde approaches this species and coordinates weakly through the oxygen atom. Two alternative pathways can be envisaged: the classical reduction, in which a hydrogen atom migrates to the carbon atom to form an alkoxide, which then proceeds to generate the final silyl ether, or a concerted mechanism involving migration of a hydrogen atom to a carbon atom and of a silyl group to an oxygen atom to generate the silyl ether weakly bound to the molybdenum atom. In this Mo(VI) system, the gas-phase free energies of activation for both approaches are very similar, but if solvent effects are taken into account and HSiMe(3) is used as a source of silicon, the classical mechanism is favored. Several unexpected results led us to search for still another route, namely a radical path. The energy involved in this and the classical pathway are similar, which suggests that hydrosilylation of aldehydes and ketones catalyzed by [MoCl(2)O(2)] in acetonitrile may follow a radical pathway, in agreement with experimental results.
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Affiliation(s)
- Paulo Jorge Costa
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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91
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[Bmim]BF4-immobilized rhenium-catalyzed highly efficient oxygenation of aldimines to oxaziridines using solid peroxides as oxidants. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.03.004] [Citation(s) in RCA: 11] [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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92
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Sakakura A, Katsukawa M, Ishihara K. The oxorhenium(VII)-catalyzed direct condensation of phosphoric acid with an alcohol. Angew Chem Int Ed Engl 2007; 46:1423-6. [PMID: 17226888 DOI: 10.1002/anie.200604333] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Akira Sakakura
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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93
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Sakakura A, Katsukawa M, Ishihara K. The Oxorhenium(VII)-Catalyzed Direct Condensation of Phosphoric Acid with an Alcohol. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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94
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Ison EA, Cessarich JE, Travia NE, Fanwick PE, Abu-Omar MM. Synthesis of Cationic Rhenium(VII) Oxo Imido Complexes and Their Tunability Towards Oxygen Atom Transfer. J Am Chem Soc 2007; 129:1167-78. [PMID: 17263398 DOI: 10.1021/ja065551p] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A facile method is described for the synthesis of cationic Re(VII) cis oxo imido complexes of the form [Re(O)(NAr)(salpd)+] (salpd = N,N'-propane-1,3-diylbis(salicylideneimine)), 4, [Re(O)(NAr)(saldach)+] (saldach = N,N'-cyclohexane-1,3-diylbis(salicylideneimine)), 5, and [Re(O)(NAr)(hoz)2+] (hoz = 2-(2'-hydroxyphenyl)-2-oxazoline) (Ar = 2,4,6,-(Me)C(6)H(2); 4-(OMe)C(6)H(4); 4-(Me)C(6)H(4); 4-(CF3)C6H4; 4-MeC(6)H(4)SO(2)), 6, from the reaction of oxorhenium(V) [(L)Re(O)(Solv)+] (1-3) and aryl azides under ambient conditions. Unlike previously reported cationic Re(VII) dioxo complexes, these cationic oxo imido complexes can be obtained on a preparative scale, and an X-ray crystal structure of [Re(O)(NMes)(saldach)+], 5a, has been obtained. Despite the multiple stereoisomers that could arise from tetradentate ligation of salen ligands to rhenium, one major isomer is observed and isolated in each instant. The electronic rationalization for stereoselectivity is discussed. Investigation of the mechanism suggests that the reactions of Re(V) with aryl azides proceed through an azido adduct similar to the group 5 complexes of Bergman and Cummins. Treatment of the cationic oxo imido complexes with a reductant (PAr(3), PhSMe, or PhSH) results in oxygen atom transfer (OAT) and the formation of cationic Re(V) imido complexes. [(salpd)Re(NMes)(PPh(3))(+)] (7) and [(hoz)2Re(NAr)(PPh(3))(+)] (Ar = m-OMe phenyl) (9) have been isolated on a preparative scale and fully characterized including an X-ray single-crystal structure of 7. The kinetics of OAT, monitored by stopped-flow spectroscopy, has revealed rate saturation for substrate dependences. The different plateau values for different oxygen acceptors (Y) provide direct support for a previously suggested mechanism in which the reductant forms a prior-equilibrium adduct with the rhenium oxo (ReVII = O<--Y). The second-order rate constants of OAT, which span more than 3 orders of magnitude for a given substrate, are significantly affected by the electronics of the imido ancillary ligand with electron-withdrawing imidos being most effective. However, the rate constant for the most active oxo imido rhenium(VII) is 2 orders of magnitude slower than that observed for the known cationic dioxo Re(VII) [(hoz)2Re(O)(2)(+)].
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Affiliation(s)
- Elon A Ison
- Brown Laboratory, Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, USA
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95
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Saladino R, Fiani C, Crestini C, Argyropoulos DS, Marini S, Coletta M. An efficient and stereoselective dearylation of asarinin and sesamin tetrahydrofurofuran lignans to acuminatolide by methyltrioxorhenium/H(2)O(2) and UHP systems. JOURNAL OF NATURAL PRODUCTS 2007; 70:39-42. [PMID: 17253847 DOI: 10.1021/np060479u] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The synthesis of stereoisomers of acuminatolide is rare and requires complex and time-consuming multistep procedures. Asarinin (1) and sesamin (2), two diasteromeric tetrahydrofurofuran lignans, are efficiently mono-dearylated by methyltrioxorhenium (MTO, I) and hydrogen peroxide (H2O2) or urea hydrogen peroxide adduct (UHP) as primary oxidant to give (-)-(7R,8'R,8R)-acuminatolide (3A) and (+)-(7S,8R,8'R)-acuminatolide (3B), respectively, in high yield and diastereoselectivity (de >98%). The oxidation of 1 was also performed with novel heterogeneous catalysts based on the heterogenation of MTO on poly(4-vinylpyridine) and polystyrene resins. In these latter cases 3A was obtained with a different yield and selectivity depending on the physical-chemical properties of the support. Cytotoxic effects of 3A and 3B in mammalian cell lines in vitro are also reported.
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Affiliation(s)
- Raffaele Saladino
- Dipartimento di Agrobiologia ed Agrochimica, Università della Tuscia, via S. Camillo de Lellis, snc, 01100 Viterbo, Italy.
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96
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Yamazaki S. An improved methyltrioxorhenium-catalyzed epoxidation of alkenes with hydrogen peroxide. Org Biomol Chem 2007; 5:2109-13. [PMID: 17581654 DOI: 10.1039/b705276f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Methyltrioxorhenium (MTO)-catalyzed epoxidation of alkenes with H(2)O(2) has been significantly improved by using 3-methylpyrazole as an additive. A system consisting of 35% H(2)O(2) and MTO-3-methylpyrazole in CH(2)Cl(2) catalyzes the epoxidation of various alkenes in excellent yields. The catalytic activity of MTO-3-methylpyrazole surpasses MTO-pyrazole and MTO-pyridine catalysts. Quantitative yields of epoxides from cyclic and internal alkenes were obtained with only 0.05-0.1 mol% of MTO in the presence of 10 mol% of 3-methylpyrazole.
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Affiliation(s)
- Shigekazu Yamazaki
- Toyama Industrial Technology Center, 150 Futagami, Takaoka, Toyama 933-0981, Japan.
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97
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Bianchini G, Crucianelli M, Crestini C, Saladino R. Catalytic MTO-based C–H insertion reactions of hydrogen peroxide: an investigation on the polymeric support role in heterogeneous conditions. Top Catal 2006. [DOI: 10.1007/s11244-006-0123-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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98
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Crestini C, Caponi MC, Argyropoulos DS, Saladino R. Immobilized methyltrioxo rhenium (MTO)/H2O2 systems for the oxidation of lignin and lignin model compounds. Bioorg Med Chem 2006; 14:5292-302. [PMID: 16621577 DOI: 10.1016/j.bmc.2006.03.046] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Revised: 03/20/2006] [Accepted: 03/24/2006] [Indexed: 11/16/2022]
Abstract
A convenient and efficient application of heterogeneous methylrhenium trioxide (MTO) systems for the selective oxidation of lignin model compounds and lignins is reported. Environmental friendly and low-cost H2O2 was used as the oxygen atom donor. Overall, the data presented and discussed in this paper point toward the conclusion that the immobilized heterogeneous catalytic systems based on H2O2/and MTO catalysts are able to extensively oxidize both phenolic and non-phenolic, monomeric, and dimeric, lignin model compounds. Condensed diphenylmethane models were found also extensively oxidized. Technical lignins, such as hydrolytic sugar cane lignin (SCL) and red spruce kraft lignin (RSL), displayed oxidative activity with immobilized MTO catalytic systems. After oxidation, these lignins displayed the formation of more soluble lignin fragments with a high degree of degradation as indicated by the lower contents of aliphatic and condensed OH groups, and the higher amounts of carboxylic acid moieties. Our data indicate that immobilized MTO catalytic systems are significant potential candidates for the development of alternative totally chlorine-free delignification processes and environmental sustainable lignin selective modification reactions.
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Affiliation(s)
- Claudia Crestini
- Dipartimento di Scienze e Tecnologie Chimiche Università di Tor Vergata, Via della ricerca Scientifica, 00133, Roma, Italy.
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99
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Conley BL, Ganesh SK, Gonzales JM, Tenn WJ, Young KJH, Oxgaard J, Goddard WA, Periana RA. Facile Functionalization of a Metal Carbon Bond by O-Atom Transfer. J Am Chem Soc 2006; 128:9018-9. [PMID: 16834359 DOI: 10.1021/ja062417w] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The facile conversion of M-R to M-OR that could be useful for the functionalization of electron-rich metal alkyl intermediates is shown to proceed via a Baeyer-Villiger-type pathway involving a nonredox, electrophilic, O-atom insertion in reactions with non-peroxo O-donors.
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Affiliation(s)
- Brian L Conley
- Donald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
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100
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Catalytic epoxidation of olefins using MoO3 and TBHP: Mechanistic considerations and the effect of amine additives on the reaction. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2005.12.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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