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Volumn 308, Issue 5730, 2005, Pages 1890-1892

Chemistry: Tyrosinase reactivity in a model complex: An alternative hydroxylation mechanism

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION SPECTROSCOPY; AROMATIC COMPOUNDS; CHEMICAL BONDS; COPPER; ENZYMES; OXIDATION; SOLUTIONS;

EID: 21344458566     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1112081     Document Type: Article
Times cited : (291)

References (35)
  • 12
    • 21744448399 scopus 로고    scopus 로고
    • note
    • 2- peroxodicopper(II) complex has been shown to directly hydroxylate an aromatic ring on a noncoordinating substrate (32).
  • 13
    • 21744440608 scopus 로고    scopus 로고
    • note
    • A lower yield of the products is observed for electron-deficient substrates.
  • 14
    • 21744439156 scopus 로고    scopus 로고
    • note
    • Materials and methods are available as supporting material on Science Online.
  • 15
    • 21744442472 scopus 로고    scopus 로고
    • note
    • Both catechol and quinone are produced upon acidic workup of the solution mixture, which supports A as a reactive species during hydroxylation.
  • 16
    • 0030005669 scopus 로고    scopus 로고
    • J. A. Halfen et al., Science 271, 1397 (1996).
    • (1996) Science , vol.271 , pp. 1397
    • Halfen, J.A.1
  • 19
    • 21744442293 scopus 로고    scopus 로고
    • note
    • -1, which supports a phenolate to Cu charge-transfer assignment
  • 21
    • 21744447406 scopus 로고    scopus 로고
    • note
    • -1) are observed.
  • 25
    • 21744436144 scopus 로고    scopus 로고
    • note
    • -1), any difference in R less than 0.17 Å between ligands in the first coordination shell (at 1.89 A) could not be resolved.
  • 27
    • 21744446290 scopus 로고    scopus 로고
    • note
    • An electrophilic aromatic substitution mechanism for 3 bis-μ-oxodicopper(III) complex has been proposed in a case in which a ligand aryl group is hydroxylated (34).
  • 35
    • 21744462451 scopus 로고    scopus 로고
    • note
    • 18O-di-t- butyl-phenolate and J. I. Brauman for insightful discussions. L.M.M. gratefully acknowledges a John Stauffer Stanford Graduate Fellowship. Funding was provided by NIH GM50730 (T.D.P.S), NIH DK31450 (E.I.S.), and NIH RR01209 (K.O.H.). XAS data were measured at the Stanford Synchrotron Radiation Laboratory (SSRL), which is supported by the Department of Energy, Office of Basic Energy Sciences. The SSRL Structural Molecular Biology program is funded by the National Institutes of Health, National Center for Research Resources, Biomedical Technology Program, and the Department of Energy, Office of Biological and Environmental Research.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.