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Volumn 15, Issue 32, 2009, Pages 7854-7858

Iron-substituted polyoxotungstates as inorganic synzymes: Evidence for a biomimetic pathway in the catalytic oxygenation of catechols

Author keywords

Catechol cleavage; Homogeneous catalysis; Iron; Polyoxometalates; Synzymes

Indexed keywords

BIO-INSPIRED; BIOMIMETIC PATHWAYS; CATALYTIC OXYGENATION; CATECHOL CLEAVAGE; CATECHOLATE; CHARGE TRANSFER BANDS; CHARGE TRANSFER TRANSITIONS; CLEAVAGE PRODUCTS; HOMOGENEOUS CATALYSIS; IRON CENTERS; LEWIS ACIDITY; NIR SPECTRUM; POLYOXOMETALATES; POLYOXOTUNGSTATES; POLYTUNGSTATES; SENSITIVE PROBE; STRUCTURE-REACTIVITY RELATIONSHIPS; SYNZYMES;

EID: 68349098381     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200901392     Document Type: Article
Times cited : (33)

References (51)
  • 5
    • 68349105473 scopus 로고    scopus 로고
    • Special Issue Polyoxometalates: Chem. Rev. 1998, 98, 1-387, edited by C. L. Hill.
    • Special Issue "Polyoxometalates": Chem. Rev. 1998, 98, 1-387, edited by C. L. Hill.
  • 14
    • 0035476458 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2001, 40, 3639-3641.
    • (2001) Angew. Chem. Int. Ed , vol.40 , pp. 3639-3641
  • 19
    • 57549089628 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2008, 47, 9908-9912.
    • (2008) Angew. Chem. Int. Ed , vol.47 , pp. 9908-9912
  • 22
    • 51449110368 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2008, 47, 5888-5890.
    • (2008) Angew. Chem. Int. Ed , vol.47 , pp. 5888-5890
  • 24
    • 33748036076 scopus 로고    scopus 로고
    • B. Botar, Y. V. Geletii, P. Kögerler, D. G. Musaev, K. Morokuma, I.A. Weinstock, C.L. Hill, J. Am. Chem. Soc. 2006, 128, 1126811277;
    • a) B. Botar, Y. V. Geletii, P. Kögerler, D. G. Musaev, K. Morokuma, I.A. Weinstock, C.L. Hill, J. Am. Chem. Soc. 2006, 128, 1126811277;
  • 29
    • 0033610466 scopus 로고    scopus 로고
    • and references therein;
    • b) H. Weiner, R. G. Finke, J. Am. Chem. Soc. 1999, 121, 9831-9842 and references therein;
    • (1999) J. Am. Chem. Soc , vol.121 , pp. 9831-9842
    • Weiner, H.1    Finke, R.G.2
  • 31
    • 68349097941 scopus 로고    scopus 로고
    • Oxygenases and Model Systems (Ed.: T. Funabiki), Kluwer, Dordrecht, 1997;
    • a) Oxygenases and Model Systems (Ed.: T. Funabiki), Kluwer, Dordrecht, 1997;
  • 32
    • 68349122045 scopus 로고    scopus 로고
    • L. Que, Jr., R. Y. N. Ho, Chem. Rev. 1996, 96, 26072624.
    • b) L. Que, Jr., R. Y. N. Ho, Chem. Rev. 1996, 96, 26072624.
  • 39
    • 29144439862 scopus 로고    scopus 로고
    • 2 was confirmed by FT-IR (see the Supporting Information). The same complexes have been found highly robust under harsher autoxidation conditions with microwave assisted protocols see M. Bonchio, M. Carrara, G. Scorrano, U. Kortz, Adv. Synth. Catal. 2005, 347, 1909-1912.
    • 2 was confirmed by FT-IR (see the Supporting Information). The same complexes have been found highly robust under harsher autoxidation conditions with microwave assisted protocols see M. Bonchio, M. Carrara, G. Scorrano, U. Kortz, Adv. Synth. Catal. 2005, 347, 1909-1912.
  • 40
    • 68349119670 scopus 로고    scopus 로고
    • 18 upon addition of 4-tert-butylcatechol and 4-chlorocatechol in DCE are at 729 nm (shoulder at 652) and 671 nm (shoulder at 622 nm), respectively.
    • 18 upon addition of 4-tert-butylcatechol and 4-chlorocatechol in DCE are at 729 nm (shoulder at 652) and 671 nm (shoulder at 622 nm), respectively.
  • 44
    • 68349086204 scopus 로고    scopus 로고
    • 18 are reported in the Supporting Information. CCDC 724754, 724755, and 724756 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
    • 18 are reported in the Supporting Information. CCDC 724754, 724755, and 724756 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
  • 46
    • 68349094463 scopus 로고    scopus 로고
    • 4 salt by cation metathesis, which offers an optimal synthetic strategy for tuning the solubility of the POM catalyst (Table S5 in the Supporting Information).
    • 4 salt by cation metathesis, which offers an optimal synthetic strategy for tuning the solubility of the POM catalyst (Table S5 in the Supporting Information).
  • 47
    • 37049068283 scopus 로고    scopus 로고
    • 2O 98:2 was reported to be an effective solvent for this reaction, see: T. Funabiki, I. Yoneda, M. Ishikawa, M. Ujiie, Y Nagai, S. Yoshida, J. Chem. Soc. Chem. Commun. 1994,1453.
    • 2O 98:2 was reported to be an effective solvent for this reaction, see: T. Funabiki, I. Yoneda, M. Ishikawa, M. Ujiie, Y Nagai, S. Yoshida, J. Chem. Soc. Chem. Commun. 1994,1453.
  • 48
    • 68349086205 scopus 로고    scopus 로고
    • 1H NMR exclude the formation of five-member ring 2pyrones. A non-regioselective cleavage is generally observed in abiotic systems. Computational arguments point at a subtle interplay of factors that might modulate the oxidative cleavage preference. See reference [21].
    • 1H NMR exclude the formation of five-member ring 2pyrones. A non-regioselective cleavage is generally observed in abiotic systems. Computational arguments point at a subtle interplay of factors that might modulate the oxidative cleavage preference. See reference [21].
  • 49
    • 68349113097 scopus 로고    scopus 로고
    • Control experiments with iron-free derivatives allow to establish that the observed reactivity is ascribable to the POM embedded iron centers Specifically, isostructural complexes of the type [β-M4(H 2O)10(XW9O33)2] n- where M is CrIII, MnII, CoII, NiII, CuII, and CdII lead to negligible DTBC conversion <2
    • II lead to negligible DTBC conversion (<2%).
  • 51
    • 0001061320 scopus 로고    scopus 로고
    • The pioneering work on transition-metal supported POMs is inspiring as this POM structural type displays cis-coordination sites, coordinative unsaturation, interesting reactivity and selectivity, see reference [19a] and H. Weiner, Y Hayashi, R. G. Finke, Inorg. Chem. 1999, 35, 2579-2591
    • The pioneering work on transition-metal supported POMs is inspiring as this POM structural type displays cis-coordination sites, coordinative unsaturation, interesting reactivity and selectivity, see reference [19a] and H. Weiner, Y Hayashi, R. G. Finke, Inorg. Chem. 1999, 35, 2579-2591.


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