Kinetics and Mechanism of Oxidation of L-Threonine by Periodate in Alkaline Medium
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چکیده
منابع مشابه
Kinetics and mechanism of oxidation of chromium ( III ) - L - glutamic acid complex by periodate Hassan
where k, is the rate constant for the electron transfer process, K1 the equiiibrium constant for dissociation of [Cr(Lh(H20h+l to [Cr(Lh(H20)(0H)] + W, and K5 the pre-equilibrium format ion constant. Values of k2 = 2.93xl0s• K1 = 6.26 x 10--4 mol dmand K5 = 88.4 1 dm mor 1 have been obtained at 30°C and I= 0.2 mol dmThermodynamic activation parameters have been calculated. It is proposed that e...
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چکیده هدف از این کار بررسی الکترواکسیداسیون کتکول و مشتقات آن در حضور 4-فنیل سمی کاربامازید بوده است اکسیداسیون کتکولها ترکیبات نا پایدار کینونها را تولید می کنند که این ترکیبات می تواند در واکنش مایکل بعنوان پذیرنده نوکلئوفیل عمل نمایند. در ادامه اکسایش کتکولهای (a-c1) را درحضور 4-فنیل سمی کاربامازید در محلول آب/استونیتریل (90/10)بوسیله ولتامتری چرخه ای و کولن متری در پتانسیل ثابت مورد بررسی ...
15 صفحه اولOxidation of hydroxy-L-proline by periodate.
Some time ago Carter and Neville reported (1) that hydroxy-n-proline yields formaldehyde on oxidation with periodate. In another laboratory, this oxidation was found to produce a considerably lower yield of formaldehyde than we had obtained.’ A further study of this reaction was accordingly undertaken. Oxidation of several new samples of hydroxy-L-proline gave lower yields of formaldehyde than ...
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Kinetics of oxidation of L-valine (Val) by manganese(III) pyrophosphate has been studied as a function of pH (0.94-1.90) at 313 K. The reaction shows a first-order dependence of rate each on [Mn(III)] and [Val], a fractional-order on [H], and an inverse fractional-order each on [Na4P2O7] and [Mn(II)]. Effects on the rate of anions, such as [F], [Cl] and [ClO4], and the dielectric constant of th...
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The mechanism of the low temperature oxidation of gaseous acetaldehyde was investigated in the temperature range of 1 50-400?°C. The minor, intermediate and major products were identified and measured quantitatively by sampling directly into the ionization chamber of an MS10-C2 mass spectrometer from the reactor. The formation of H2O, CO, CO2, HCOOH, H2, HCHO, CH3COOH and CH3OH as the major pro...
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ژورنال
عنوان ژورنال: International Journal of Chemical and Physical Sciences
سال: 2018
ISSN: 2319-6602
DOI: 10.30731/ijcps.7.3.2018.27-34