𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Kinetic study of triphenylphosphine addition to para-benzoquinone

✍ Scribed by Davood Nori-Shargh; Nasrin Saroogh Farahani

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
168 KB
Volume
36
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Kinetics of the addition reaction of triphenylphosphine to para‐benzoquinone in 1,2‐dichloroethane as solvent was studied. Initial rate method was used to determine the order of the reaction with respect to the reactants. Pseudo‐first‐order method was also used to calculate the rate constant. This reaction was monitored by UV‐vis spectrophotometry at 520 nm by variable time method. On the basis of the obtained results, the Arrhenius equation of this reaction was obtained:

equation image

The activation parameters, E~a~, Δ__H__^#^, Δ__G__^#^, and Δ__S__^#^ at 300 K were 5.701, 6.294, 19.958 kcal mol^−1^ and −45.853 cal mol^−1^ K^−1^, respectively. This reaction is first and second order with respect to triphenylphosphine and para‐benzoquinone, respectively. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36:472–479, 2004

📜 SIMILAR VOLUMES

Investigation of kinetic and mechanism o
Investigation of kinetic and mechanism of triphenylphosphine addition to para-naphthoquinone
✍ Davood Nori-Shargh; Abolfazl Soofi; Nasrin Saroogh Farahani; Farzad Deyhimi 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 174 KB

## Abstract This work reports the results of a kinetic and mechanistic investigations of the addition reaction of triphenylphosphine to __para__‐naphtoquinone in 1,2‐dichloromethane as solvent. The order of reaction with respect to the reactants was determined using initial rate method, and the rat

Kinetic study for addition of the phenyl
Kinetic study for addition of the phenylthio radicals to vinylpyridines
✍ Osamu Ito; Minoru Matsuda 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 417 KB

The absolute rate constants for reversible addition of the substituted phenylthio radicals to vinylpyridines in solution at 23°C have been determined by flash photolysis method. For each phenylthio radical, the reactivities of vinylpyridines is 3-5 times lower than that of styrene. The relative equi

Triphenylphosphine-Catalyzed Michael Add
Triphenylphosphine-Catalyzed Michael Addition of Alcohols to Acrylic Compounds
✍ Hai-Ling Liu; Huan-Feng Jiang; Yu-Gang Wang 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 49 KB

## Abstract A facile triphenylphosphine‐catalyzed Michael addition of alcohols to acrylic compounds was described. The reaction was carried out in open air at refluxing temperature in the presence of 10 mol% PPh~3~. Michael addition of saturated and unsaturated alcohols to acrylonitrile or acrylate