کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7691988 1496018 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst
چکیده انگلیسی
The kinetics and mechanism of Ru(III)-catalyzed oxidation of d-arabinose (d-Ara) by N-bromophthalimide (NBP) in a acidic medium were investigated using titrimetric method for the redox reaction in the temperature range of 303-323 K. The reaction was first order with respect to [NBP] and [Ru(III)]. In both cases, the reaction followed identical kinetics with positive fractional order for [d-Ara] and [H+]. Negative effect with increase in [Cl−], [CH3COOH] and [acetonitrile] could also be observed. Erythronic acid and formic acid were identified as main oxidation products of the reaction. Reduced product of the oxidant i.e. phthalimide did not show significant effect on oxidation rate. Various activation parameters have also been evaluated. Finally a plausible mechanism has been proposed from the kinetic results, reaction stoichiometry and product analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 10, Issue 7, November 2017, Pages 965-974
نویسندگان
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