101
|
Molter A, Bill E, Mohr F. Synthesis, structures and reactivity of two oxidovanadium(IV) and dioxidovanadium(V) selenosemicarbazonato complexes. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.12.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
102
|
Hazari PP, Pandey AK, Chaturvedi S, Tiwari AK, Chandna S, Dwarakanath BS, Mishra AK. Synthesis of oxovanadium(IV) Schiff base complexes derived from C-substituted diamines and pyridoxal-5-phosphate as antitumor agents. Chem Biol Drug Des 2012; 79:223-34. [PMID: 22023804 DOI: 10.1111/j.1747-0285.2011.01265.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oxovanadium (IV) complexes of N,N'-bispyridoxyl-5, 5'-bis (phosphate) ethylenediimine (L1) and N,N'-bis(pyridoxyl)-5,5'-bis(phosphate)-1''-(p-nitrobenzyl)ethylenediimine (L2) were synthesized by condensation of optically active C-substituted diamines and pyridoxal-5-phosphate. Oxovanadium (IV) complexes derived from L1 and L2 were evaluated as DNA cleavage agent (cleavage of supercoiled plasmid pBR322 DNA). Interestingly, both the oxovanadium (IV) complexes exhibited DNA nuclease activity, and the extent of oxidation of DNA by these vanadyl complexes was superior to VOSO(4) . The significant reduction in primary tumor and increased delay in tumor growth of 15 days was seen in the tumor regression analysis with oxovanadium (IV) complex of L1. With the preliminary studies performed with the pyridoxal-5-phosphate -based salen derivatives including the cytotoxicity and tumor regression, it is evident that the salen bifunctional chelating agent has obtained therapeutic potential if conjugated to a gene-specific targeting molecule for the oxidation of guanine residue.
Collapse
Affiliation(s)
- Puja Panwar Hazari
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences, Brig SK Mazumdar Road, New Delhi 110054, India.
| | | | | | | | | | | | | |
Collapse
|
103
|
Kodama K, Kawamata H, Takahashi N, Hirose T. Cyanative self-condensation of aromatic aldehydes promoted by VO(OiPr)3–Lewis base as a cooperative catalyst. Org Biomol Chem 2012; 10:9440-6. [DOI: 10.1039/c2ob26811f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
104
|
Viji M, Nagarajan R. Zinc triflate catalyzed regioselective synthesis of pyrrolo[2,3-c]carbazoles via heteroannulation. RSC Adv 2012. [DOI: 10.1039/c2ra21735j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
|
105
|
Parihar S, Pathan S, Jadeja RN, Patel A, Gupta VK. Synthesis and Crystal Structure of an Oxovanadium(IV) Complex with a Pyrazolone Ligand and Its Use as a Heterogeneous Catalyst for the Oxidation of Styrene under Mild Conditions. Inorg Chem 2011; 51:1152-61. [PMID: 22220594 DOI: 10.1021/ic202396q] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sanjay Parihar
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Soyeb Pathan
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - R. N. Jadeja
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Anjali Patel
- Department of Chemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
| | - Vivek K. Gupta
- Post-Graduate Department
of Physics, Jammu University, Jammutawi 180 006, India
| |
Collapse
|
106
|
Alagiri K, Prabhu KR. Efficient synthesis of carbonyl compounds: oxidation of azides and alcohols catalyzed by vanadium pentoxide in water using tert-butylhydroperoxide. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.080] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
107
|
How environment affects drug activity: Localization, compartmentalization and reactions of a vanadium insulin-enhancing compound, dipicolinatooxovanadium(V). Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.01.032] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
108
|
Catalytic oxidation of hydrocarbons with hydrogen peroxide by vanadium-based polyoxometalates. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.01.041] [Citation(s) in RCA: 304] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
109
|
|
110
|
|
111
|
Bromoperoxidases and functional enzyme mimics as catalysts for oxidative bromination—A sustainable synthetic approach. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
112
|
|
113
|
Amaya T, Miyasaka A, Hirao T. Synthesis of three-dimensionally arranged bis-biphenol ligand on hexaaryl benzene scaffold and its application for cross-pinacol coupling reaction. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
114
|
MAURYA MANNARR. Structural models of vanadate-dependent haloperoxidases, their reactivity, immobilization on polymer support and catalytic activities. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0114-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
115
|
Asadi M, Ghatee MH, Torabi S, Mohammadi K, Moosavi F. Synthesis, characterization, ab initio calculations, thermal behaviour and thermodynamics of some oxovanadium(IV) complexes involving O,O- and N,N-donor moieties. J CHEM SCI 2011. [DOI: 10.1007/s12039-010-0088-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
116
|
Phthalocyanine- and Calixarene-Templating Effect on the Catalytic Performance of Solid Supported Vanadates. Catal Letters 2011. [DOI: 10.1007/s10562-011-0662-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
117
|
Eichele K, Grimmer AR. Phosphorus-31 and vanadium-51 solid-state nuclear magnetic resonance spectroscopy of β-vanadyl phosphate — Effects of homo- and heteronuclear spin-spin, electrostatic, and paramagnetic interactions. CAN J CHEM 2011. [DOI: 10.1139/v11-025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Field-dependent 31P solid-state NMR studies demonstrate that the line shape in spectra of β-VOPO4 depends on 51V–31P direct and indirect spin-spin interactions (M2 (51V, 31P) = 101(23) × 106 rad2 s–2, 2Jiso (51V, 31P) = 48(5) Hz) and, to a lesser extent, on 31P chemical shift anisotropy (δiso = –10.4(2), Ω = δ11 – δ33 = 22(2) ppm) and 31P–31P interactions (M2 (31P, 31P) = 6.7(1) × 106 rad2 s–2). In contrast, homonuclear dipolar interactions play an important role for the field and spinning rate dependent 31P spin-lattice relaxation via paramagnetic impurities (T1 = 20–60 s). Vanadium-51 magic-angle spinning NMR spectra indicate a sizeable chemical shift anisotropy (δiso = –754(1), δ11 = –336(10), δ22 = –344(6), δ33 = –1581(8) ppm) and nuclear quadrupole interaction (χ = 1.5(1) MHz, η = 0.35(5)); the principal axis systems of both interactions are clearly not coincident, with an angle of 35(5)° between the greatest component of the electric field gradient tensor and δ33.
Collapse
Affiliation(s)
- Klaus Eichele
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, D-12489, Berlin, Germany
| | - Arnd-Rüdiger Grimmer
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, D-12489, Berlin, Germany
| |
Collapse
|
118
|
Matsuoka N, Tsuchimoto M, Yoshioka N. Theoretical Study of Magnetic Properties of Oxovanadium(IV) Complex Self-Assemblies with Tetradentate Schiff Base Ligands. J Phys Chem B 2011; 115:8465-73. [DOI: 10.1021/jp111779k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Naoki Matsuoka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan
| | - Masanobu Tsuchimoto
- Department of Chemistry, Faculty of Engineering, Chiba Institute of Technology, Shibazono 2-1-1, Narashino, Chiba 275-0023, Japan
| | - Naoki Yoshioka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan
| |
Collapse
|
119
|
Kamata K, Sugahara K, Yonehara K, Ishimoto R, Mizuno N. Efficient Epoxidation of Electron-Deficient Alkenes with Hydrogen Peroxide Catalyzed by [γ-PW10O38V2(μ-OH)2]3−. Chemistry 2011; 17:7549-59. [DOI: 10.1002/chem.201101001] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Indexed: 11/06/2022]
|
120
|
Shen M, Guo H, Zaera F. Bond Forming Reactions Involving C1 Moieties: Late Versus Early Transition Metal Surfaces. Top Catal 2011. [DOI: 10.1007/s11244-011-9611-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
121
|
Ma J, Du Z, Xu J, Chu Q, Pang Y. Efficient aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran, and synthesis of a fluorescent material. CHEMSUSCHEM 2011; 4:51-54. [PMID: 21226210 DOI: 10.1002/cssc.201000273] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 10/12/2010] [Indexed: 05/30/2023]
Affiliation(s)
- Jiping Ma
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China
| | | | | | | | | |
Collapse
|
122
|
Jahn U. Radicals in transition metal catalyzed reactions? transition metal catalyzed radical reactions? a fruitful interplay anyway: part 1. Radical catalysis by group 4 to group 7 elements. Top Curr Chem (Cham) 2011; 320:121-89. [PMID: 22025066 DOI: 10.1007/128_2011_261] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the current status of radical-based transition metal catalyzed reactions in organic chemistry. The underlying features of radical generation from transition metal complexes and radical reactivity in the framework of transition metal catalysis are discussed. The available arsenal to detect radicals in transition metal catalyzed transformations is presented. Available strategies to combine radical intermediates with transition metal catalysis are outlined. In the main part the currently known synthetic methodology of transition metal catalyzed reactions proceeding via radical intermediates is discussed. This part covers catalytic radical reactions involving group 4 to group 7 elements.
Collapse
Affiliation(s)
- Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo namesti 2, 16610, Prague 6, Czech Republic.
| |
Collapse
|
123
|
Bagherzadeh M, Amini M. A new vanadium Schiff base complex as catalyst for oxidation of alcohols. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.520316] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mojtaba Bagherzadeh
- a Department of Chemistry , Sharif University of Technology , PO Box 11155‐3615, Tehran, Iran
| | - Mojtaba Amini
- a Department of Chemistry , Sharif University of Technology , PO Box 11155‐3615, Tehran, Iran
| |
Collapse
|
124
|
Li L, Guo Z, Zhang Q, Xu T, Wang D. An unexpected oxovanadium(IV) complex with in situ generated lactone ligand: Synthesis, crystal structure and DNA-binding property. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.06.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
125
|
Arakawa H, Dovbeshko G, Diamantoglou S, Tajmir-Riahi HA. Oxovanadium Ions Bind Transfer RNA at Multiple Sites. DNA Cell Biol 2010; 29:459-64. [DOI: 10.1089/dna.2010.1028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hirohumi Arakawa
- Department of Chemistry-Biology, University of Québec at Trois-Riviéres, Trois-Riviéres, Quebec, Canada
| | - Galina Dovbeshko
- Department of Physics of Biological Systems, Institute of Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
| | - Stavroula Diamantoglou
- Department of Chemistry-Biology, University of Québec at Trois-Riviéres, Trois-Riviéres, Quebec, Canada
| | - Heidar-Ali Tajmir-Riahi
- Department of Chemistry-Biology, University of Québec at Trois-Riviéres, Trois-Riviéres, Quebec, Canada
| |
Collapse
|
126
|
Barroso S, Adão P, Madeira F, Duarte MT, Pessoa JC, Martins AM. Vanadium Diaminebis(phenolate) Complexes: Syntheses, Structures, and Reactivity in Sulfoxidation Catalysis. Inorg Chem 2010; 49:7452-63. [DOI: 10.1021/ic1007704] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sónia Barroso
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| | - Pedro Adão
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| | - Filipe Madeira
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| | - M. Teresa Duarte
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| | - João Costa Pessoa
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| | - Ana M. Martins
- Centro de Química Estrutural, Instituto Superior Técnico, TU Lisbon, 1049-001 Lisboa, Portugal
| |
Collapse
|
127
|
Kaneda K, Hara T, Hashimoto N, Mitsudome T, Mizugaki T, Jitsukawa K. Creation of a monomeric vanadate species in an apatite framework as an active heterogeneous base catalyst for Michael reactions in water. Catal Today 2010. [DOI: 10.1016/j.cattod.2009.08.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
128
|
Structural diversity of chlorido methoxido- and ethoxido-oxidovanadium(V) complexes: Two-dimensional network, dimer, and unusual syn-oriented V=O functionality. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.03.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
129
|
Trivedi M, Nagarajan R, Kumar A, Rath NP. A new single pot synthesis of μ-bis(oxido)bis{oxidovanadium(V)} dipicolinato complex with 2-aminopyridinium as counter cation: Spectroscopic, structural, catalytic and theoretical studies. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.04.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
130
|
Waidmann CR, DiPasquale AG, Mayer JM. Synthesis and reactivity of oxo-peroxo-vanadium(V) bipyridine compounds. Inorg Chem 2010; 49:2383-91. [PMID: 20108930 DOI: 10.1021/ic9022618] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The vanadium(IV) compound [V(IV)O(OH)((t)Bu(2)bpy)(2)]BF(4) (V(IV)O(OH)) ((t)Bu(2)bpy = 4,4'-di-tert-butylbipyridine) is slowly oxidized by O(2) in ethereal solvents to give the oxo-peroxo compound [V(V)O(O(2))((t)Bu(2)bpy)(2)]BF(4) (V(V)O(O(2))) in excellent yield. This and related compounds were fully characterized by NMR, IR, and optical spectroscopies; mass spectrometry; elemental analyses; and an X-ray crystal structure of the 4,4'-dimethylbipyridine analog, [V(V)O(O(2))(Me(2)bpy)(2)]BF(4). Monitoring the reaction of V(IV)O(OH) with O(2) in THF/acetonitrile mixtures by (1)H NMR and optical spectroscopies surprisingly shows that the initial product is the cis-dioxo compound [V(V)(O)(2)((t)Bu(2)bpy)(2)]BF(4) (V(V)O(2)), which then converts to V(V)O(O(2)). Reaction of V(IV)O(OH) with (18)O(2) gives ca. 60% triply (18)O labeled V(V)O(O(2)). The mechanism of formation of V(V)O(O(2)) is complex and may occur via initial reduction of O(2) at vanadium(IV) to give a superoxo-vanadium(V) intermediate, autoxidation of the THF solvent, or both. That V(V)O(2) is generated first appears to be due to the ability of V(IV)O(OH) to act as a hydrogen atom donor. For instance, V(IV)O(OH) reacts with V(V)O(O(2)) to give V(V)O(2). V(V)O(O(2)) is also slowly reduced to V(IV)O(OH) by the organic hydrogen atom donors hydroquinone and TEMPOH (2,2,6,6-tetramethylpiperidin-1-ol) as well as by triphenylphosphine. Notably, the peroxo complex V(V)O(O(2)) is much less reactive with these substrates than the analogous dioxo compound V(V)O(2).
Collapse
Affiliation(s)
- Christopher R Waidmann
- Department of Chemistry, Campus Box 351700, University of Washington, Seattle, Washington 98195-1700, USA
| | | | | |
Collapse
|
131
|
Matsuoka N, Kawamura H, Yoshioka N. Magnetic property and crystal structure of bis [N-(4-chlorophenyl) salicylideneaminato] oxovanadium (IV). Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.01.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
132
|
Du Z, Ma J, Ma H, Wang M, Huang Y, Xu J. Vanadyl sulfate: A simple catalyst for oxidation of alcohols with molecular oxygen in combination with 2,2,6,6-tetramethyl-piperidyl-1-oxyl. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.02.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
133
|
Maiti DK, Halder S, Pandit P, Chatterjee N, De Joarder D, Pramanik N, Saima Y, Patra A, Maiti PK. Synthesis of glycal-based chiral benzimidazoles by VO(acac)2-CeCl3 combo catalyst and their self-aggregated nanostructured materials. J Org Chem 2010; 74:8086-97. [PMID: 19799443 DOI: 10.1021/jo901458k] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
VO(acac)(2)-CeCl(3) combo catalyst has been developed for chemoselective cyclocondensation cum oxidation under mild reaction conditions toward synthesis of a new class of optically pure compounds, 2-(2'-C-3',4',6'-tri-O-benzyl/methyl-glycal)-1H-benzimidazoles. It involves an operationally simple synthetic protocol efficient for the syntheses of a wide range of chiral benzimidazoles in high yields without formation of undesired 1,2-disubstituted and pseudoglycal byproducts. Vanadium(V) is found as active oxidant for the chemical processes which is investigated by UV absorption spectroscopy. Highly ordered one-dimensional low molecular mass organic nanostructured materials are fabricated by nanocrystallization of the chiral nanoscale building blocks. Theoretical calculation by the B3LYP/6-31G** level of theory of the glycal-based chiral benzimidazoles shows out of planar geometry of the 1H-anthra[1,2-d]imidazole-6,11-dione moiety, which is responsible for the strong self-aggregation to generate ultralong nanostructured materials. We have also found nice agreement between the theoretical results with the experimental observation in 2D-NOESY experiments. The photophysical property of the solid nanostructured materials is also reported.
Collapse
Affiliation(s)
- Dilip K Maiti
- Department of Chemistry, University College of Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata-700009, India.
| | | | | | | | | | | | | | | | | |
Collapse
|
134
|
Silva TF, Luzyanin K, Kirillova M, da Silva MFG, Martins LM, Pombeiro AJ. Novel Scorpionate and Pyrazole Dioxovanadium Complexes, Catalysts for Carboxylation and Peroxidative Oxidation of Alkanes. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900660] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
135
|
Role of the alkali metal ion and hydrogen bonds in M[VO(O2)2bpy]·nH2O (M=Li+, Na+, K+ and Rb+) and Cs[VO(O2)2bpy]·H2O2 complexes: The X-ray crystal structures and spectroscopic properties. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
136
|
Shen M, Zaera F. Coupling Reactions in Aldehydes Adsorbed on V(100) Single-Crystal Surfaces. J Am Chem Soc 2009; 131:8708-13. [DOI: 10.1021/ja9023379] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Min Shen
- Department of Chemistry, University of California, Riverside, California, 92521
| | - Francisco Zaera
- Department of Chemistry, University of California, Riverside, California, 92521
| |
Collapse
|
137
|
Amaya T, Tsukamura Y, Hirao T. Selective Oxidative Ligand Coupling of Organoborates Bearing an Alkynyl Group. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800781] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
138
|
Waidmann CR, Zhou X, Tsai EA, Kaminsky W, Hrovat DA, Borden WT, Mayer JM. Slow hydrogen atom transfer reactions of oxo- and hydroxo-vanadium compounds: the importance of intrinsic barriers. J Am Chem Soc 2009; 131:4729-43. [PMID: 19292442 PMCID: PMC2735118 DOI: 10.1021/ja808698x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reactions are described that interconvert vanadium(IV) oxo-hydroxo complexes [V(IV)O(OH)(R(2)bpy)(2)]BF(4) (1a-c) and vanadium(V) dioxo complexes [V(V)O(2)(R(2)bpy)(2)]BF(4) (2a-c) [R(2)bpy = 4,4'-di-tert-butyl-2,2'-bipyridine ((t)Bu(2)bpy), a; 4,4'-dimethyl-2,2'-bipyridine (Me(2)bpy), b; 2,2'-bipyridine (bpy), c]. These are rare examples of pairs of isolated, sterically unencumbered, first-row metal-oxo/hydroxo complexes that differ by a hydrogen atom (H(+) + e(-)). The V(IV)-(t)Bu(2)bpy derivative 1a has a useful (1)H NMR spectrum, despite being paramagnetic. Complex 2a abstracts H(*) from organic substrates with weak O-H and C-H bonds, converting 2,6-(t)Bu(2)-4-MeO-C(6)H(2)OH (ArOH) and 2,2,6,6-tetramethyl-N-hydroxypiperidine (TEMPOH) to their corresponding radicals ArO(*) and TEMPO, hydroquinone to benzoquinone, and dihydroanthracene to anthracene. The equilibrium constant for 2a + ArOH <==> 1a + ArO(*) is (4 +/- 2) x 10(-3), implying that the VO-H bond dissociation free energy (BDFE) is 70.6 +/- 1.2 kcal mol(-1). Consistent with this value, 1a is oxidized by 2,4,6-(t)Bu(3)C(6)H(2)O(*). All of these reactions are surprisingly slow, typically occurring over hours at ambient temperatures. The net hydrogen-atom pseudo-self-exchange 1a + 2b <==> 2a + 1b, using the (t)Bu- and Me-bpy substituents as labels, also occurs slowly, with k(se) = 1.3 x 10(-2) M(-1) s(-1) at 298 K, DeltaH(double dagger) = 15 +/- 2 kcal mol(-1), and DeltaS(double dagger) = 16 +/- 5 cal mol(-1) K. Using this k(se) and the BDFE, the vanadium reactions are shown to follow the Marcus cross relation moderately well, with calculated rate constants within 10(2) of the observed values. The vanadium self-exchange reaction is ca. 10(6) slower than that for the related Ru(IV)O(py)(bpy)(2)(2+)/Ru(III)OH(py)(bpy)(2)(2+) self-exchange. The origin of this dramatic difference has been probed with DFT calculations on the self-exchange reactions of 1c + 2c and on monocationic ruthenium complexes with pyrrolate or fluoride in place of the py ligands. The calculations reproduce the difference in barrier heights and show that transfer of a hydrogen atom involves more structural reorganization for vanadium than the Ru analogues. The vanadium complexes have larger changes in the metal-oxo and metal-hydroxo bond lengths, which is traced to the difference in d-orbital occupancy in the two systems. This study thus highlights the importance of intrinsic barriers in the transfer of a hydrogen atom, in addition to the thermochemical (bond strength) factors that have been previously emphasized.
Collapse
Affiliation(s)
- Christopher R. Waidmann
- Department of Chemistry, Campus Box 351700, University of Washington, Seattle, WA, 98195-1700
| | - Xin Zhou
- Department of Chemistry, University of North Texas, P.O. Box 305070, Denton, TX 76203-5070
| | - Erin A. Tsai
- Department of Chemistry, Campus Box 351700, University of Washington, Seattle, WA, 98195-1700
| | - Werner Kaminsky
- Department of Chemistry, Campus Box 351700, University of Washington, Seattle, WA, 98195-1700
- UW crystallographic facility
| | - David A. Hrovat
- Department of Chemistry, University of North Texas, P.O. Box 305070, Denton, TX 76203-5070
| | - Weston Thatcher Borden
- Department of Chemistry, University of North Texas, P.O. Box 305070, Denton, TX 76203-5070
| | - James M. Mayer
- Department of Chemistry, Campus Box 351700, University of Washington, Seattle, WA, 98195-1700
| |
Collapse
|
139
|
Aureliano M, Crans DC. Decavanadate (V10 O28 6-) and oxovanadates: oxometalates with many biological activities. J Inorg Biochem 2009; 103:536-46. [PMID: 19110314 DOI: 10.1016/j.jinorgbio.2008.11.010] [Citation(s) in RCA: 190] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2008] [Revised: 11/10/2008] [Accepted: 11/18/2008] [Indexed: 02/07/2023]
Abstract
The decameric vanadate species V(10)O(28)(6-), also referred to as decavanadate, impact proteins, lipid structures and cellular function, and show some effects in vivo on oxidative stress processes and other biological properties. The mode of action of decavanadate in many biochemical systems depends, at least in part, on the charge and size of the species and in some cases competes with the simpler oxovanadate species. The orange decavanadate that contains 10 vanadium atoms is a stable species for several days at neutral pH, but at higher pH immediately converts to the structurally and functionally distinct lower oxovanadates such as the monomer, dimer or tetramer. Although the biological effects of vanadium are generally assumed to derive from monomeric vanadate or the vanadyl cation, we show in this review that not all effects can be attributed to these simple oxovanadate forms. This topic has not previously been reviewed although background information is available [D.C. Crans, Comments Inorg. Chem. 16 (1994) 35-76; M. Aureliano (Ed.), Vanadium Biochemistry, Research Signpost Publs., Kerala, India, 2007]. In addition to pumps, channels and metabotropic receptors, lipid structures represent potential biological targets for decavanadate and some examples have been reported. Decavanadate interact with enzymes, polyphosphate, nucleotide and inositol 3-phosphate binding sites in the substrate domain or in an allosteric site, in a complex manner. In mitochondria, where vanadium was shown to accumulate following decavanadate in vivo administration, nM concentration of decavanadate induces membrane depolarization in addition to inhibiting oxygen consumption, suggesting that mitochondria may be potential targets for decameric toxicity. In vivo effects of decavanadate in piscine models demonstrated that antioxidant stress markers, lipid peroxidation and vanadium subcellular distribution is dependent upon whether or not the solutions administered contain decavanadate. The present review summarizes the reports on biological effects of decavanadate and highlights the importance of considering decavanadate in evaluations of the biological effects of vanadium.
Collapse
Affiliation(s)
- Manuel Aureliano
- CCMar and Dept. Chemistry, Biochemistry and Pharmacy, FCT, University of Algarve, Faro, Portugal.
| | | |
Collapse
|
140
|
Meppelder GJM, Halbach TS, Spaniol TP, Mülhaupt R, Okuda J. A vanadium(V) complex with a tetradentate [OSSO]-type bis(phenolato) ligand: Synthesis, structure, and ethylene polymerization activity. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.11.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
141
|
Hazari SK, Kopf J, Palit D, Rakshit S, Rehder D. Oxidovanadium(IV) complexes containing ligands derived from dithiocarbazates – Models for the interaction of VO2+ with thiofunctional ligands. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.06.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
142
|
Du Z, Miao H, Ma H, Sun Z, Ma J, Xu J. Trace Water-Promoted Oxidation of Benzylic Alcohols with Molecular Oxygen Catalyzed by Vanadyl Sulfate and Sodium Nitrite under Mild Conditions. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800700] [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]
|
143
|
Frolova LL, Popov AV, Rubtsova SA, Kuchin AV. Oxidation of secondary terpene alcohols by chlorine dioxide. Chem Nat Compd 2009. [DOI: 10.1007/s10600-009-9190-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
144
|
Kodama S, Ueta Y, Yoshida J, Nomoto A, Yano S, Ueshima M, Ogawa A. Tetranuclear vanadium complex, (VO)4(hpic)4: a recyclable catalyst for oxidation of benzyl alcohols with molecular oxygen. Dalton Trans 2009:9708-11. [DOI: 10.1039/b913823d] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
145
|
Waters T, Khairallah GN, O'Hair RAJ. Gas phase fragmentation of η2 coordinated aldehydes in [VO2(η2-OCHR)]−: aldehyde structure dictates the nature of the products. Dalton Trans 2009:7374-80. [DOI: 10.1039/b907278k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
146
|
Justino LLG, Ramos ML, Kaupp M, Burrows HD, Fiolhais C, Gil VMS. Density functional theory study of the oxoperoxo vanadium(V) complexes of glycolic acid. Structural correlations with NMR chemical shifts. Dalton Trans 2009:9735-45. [DOI: 10.1039/b910033d] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
147
|
Shen M, Zaera F. Hydrocarbon Chain Growth on V(100) Single-Crystal Surfaces via Vinyl Intermediates. Angew Chem Int Ed Engl 2008; 47:6583-5. [DOI: 10.1002/anie.200802338] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
148
|
Shen M, Zaera F. Hydrocarbon Chain Growth on V(100) Single-Crystal Surfaces via Vinyl Intermediates. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
149
|
Moriuchi T, Ishino K, Beppu T, Nishina M, Hirao T. Structural Characterization and Self-Association of (Arylimido)vanadium(V) Triisopropoxides. Inorg Chem 2008; 47:7638-43. [DOI: 10.1021/ic800528m] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Toshiyuki Moriuchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kenta Ishino
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tomohiko Beppu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Masafumi Nishina
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Toshikazu Hirao
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| |
Collapse
|
150
|
Rosenthal EC, Cui H, Hummert M. A novel oxovanadium(V) complex of 2-(2-butoxyethoxy)ethanolate with high catalytic activities for polymerisation and epoxidation. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.04.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|