𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Kinetics and mechanism of the oxidation of acetylacetone by permanganate ion

✍ Scribed by Miklós Jáky; János Szammer; Edit Simon-Trompler

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
131 KB
Volume
38
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The kinetics and mechanism of permanganate ion oxidation of acetylacetone (Acac) was studied in acidic and alkaline media. The rate constants for keto, enol, and enolate anions were determined and discussed. Delocalization of the π‐electrons of the double bond by conjugation results in a slower oxidation rate of enol than can be usually observed for unsaturated compounds. In the case of the keto form, the acid‐catalyzed nucleophilic attack of permanganate ion occurs on the carbonyl‐C atom. For enolate anion a mechanism with basis‐catalyzed electron abstraction is suggested. © 2006 Wiley Periodicals, Inc. Int J Chem Kinet 38: 444–450, 2006

📜 SIMILAR VOLUMES

Mechanism and kinetics of hypophosphite
Mechanism and kinetics of hypophosphite oxidation by permanganate ion
✍ K. Wojciechowski; A. Malecki 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB 👁 2 views

The kinetics of the permanganate-hypophosphite redox reaction has been studied over a wide range of pH by using a stopped-flow technique. It has been found that the reaction leads to the formation of phosphite and orthophosphate, and that the molar ratio of the final products depends on pH. The prop

Kinetics and mechanism of sulfite oxidat
Kinetics and mechanism of sulfite oxidation by permanganate in basic medium
✍ Teresa Ernst; Maria Cyfert; Michal Wilgocki 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 289 KB 👁 1 views

## Abstract The kinetics of the permanganate‐sulfite redox reaction has been studied in the alkaline medium using a stopped‐flow technique. In the pH range 10 to 12 the reaction was found to obey the rate expression: −½__d__[MnO~4~^−^]/__dt__ = (__k__~1~ + __k__~2~[OH^−^]) [MnO~4~^−^] [SO~3~^2−^].

Kinetics and mechanism of oxidation of 1
Kinetics and mechanism of oxidation of 1,10-phenanthroline by alkaline permanganate
✍ Rafeek G. Panari; Abdulazizkhan L. Harihar; Sharanappa T. Nandibewoor 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 79 KB 👁 2 views

The kinetics of the oxidation of 1,10-phenanthroline (1,10-phen) by permanganate were investigated in alkaline medium. A first-order, fractional-order and zero-order dependence of the rate each in [MnO 4 À ], [1,10-phen] and [OH À ], respectively, was observed. The data suggest that the oxidation pr

Permanganate ion oxidations X. Kinetics
Permanganate ion oxidations X. Kinetics and mechanisms of the initial stage in the oxidation of 4-hydroxy-2-pyrimidinethiols
✍ Fillmore Freeman; Dorrece Lynn Bond; Steven Martin Chernow; Pamela Ann Davidson; 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 463 KB 👁 1 views

## Abstract Permanganate ion rapidly oxidizes the thiol group in 2‐thiouracils (2,3‐dihydro‐2‐thioxo‐4(1H)‐pyrimidinones, 4‐hydroxy‐2‐pyrimidinethiols) to the corresponding uracil‐2‐sulfonates in phosphate‐buffered solutions. The oxidations, which are first order in oxidant and first order in reduc

Kinetics and mechanism of oxidation of e
Kinetics and mechanism of oxidation of ethylenediamine and related compounds by diperiodatoargentate (III) ion
✍ Anil Kumar; Vaishali; P. Ramamurthy 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 167 KB 👁 2 views

The oxidation of ethylenediamine by diperiodatoargentate (III) ion has been studied by stopped-flow spectrophotometry. Kinetics of this reaction involves two steps. The first step is the complexation of silver (III) with the substrate and is over in about 10 ms. This is followed by a redox reaction