کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1317622 1499464 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bio-inspired amino acid oxidation by a non-heme iron catalyst
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Bio-inspired amino acid oxidation by a non-heme iron catalyst
چکیده انگلیسی

This study reports the kinetics and mechanism of Fe(III)-catalyzed oxidative decarboxylation and deamination of a series of acyclic (α-aminoisobutyric acid, α-(methylamino)isobutyric acid, alanine, norvaline, and 2-aminobutyric acid) and cyclic (1-aminocyclopropane-1-carboxylic acid, 1-amino-1-cyclobutanecarboxylic acid, 1-aminocyclopentanecarboxylic acid, and 1-aminocyclohexanecarboxylicacid) amino acids using hydrogen peroxide, t-butyl hydroperoxide, iodosylbenzene, m-chloroperbenzoic acid, and peroxomonosulphate as oxidant in 75% DMF–25% water solvent mixture. Model complex [FeIVO(SALEN)]
• + (SALENH2: N,N′-bis(salicylidene)ethylenediamine) was generated by the reaction of FeIII(SALEN)Cl and H2O2 in CH3CN at 278 K as reported earlier. This method provided us high-valent oxoiron species, stable enough to ensure the direct observation of the reaction with amino acids.

[FeIII(SALEN)Cl] (SALENH2: N,N′-bis(salicylidene)ethylenediamine) is an active and selective catalyst in the oxidation of a series of cyclic and acyclic amino acids to ethylene and carbonyls and thus serves as functional models for ACC oxidase.Figure optionsDownload as PowerPoint slideHighlights
► Kinetics of Fe(III)-catalyzed oxidation of amino acids with various oxidants.
► Stoichiometric oxidation of ACC with high valent iron-oxo intermediate.
► Suggested mechanism for the ACC oxidase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Inorganic Biochemistry - Volume 123, June 2013, Pages 46–52
نویسندگان
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