N. Pandey, K. Mishra, M. Kashyap
1982
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0
Influential Citations
2
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Journal
Phosphorus Sulfur and Silicon and The Related Elements
Abstract
Abstract The oxidative cleavage of 1-propanethiol and 2-propanethiol (1-PT and 2-PT respectively) by 2,6-dichloro-phenolindophenol have been studied in methanol-water medium and the thiol-disulphide conversion has been studied kinetically in presence of hydroxyl ion at 30°C. The reaction follows a second order kinetics in indophenol in both cases. The order of reaction is one in 1-propanethiol while in 2-propanethiol, the order shows a transition from zero to one at higher concentrations of alkali. The rate constant shows a direct proportionality with [OH−] in case of 1-propanethiol but in the oxidation of 2-propanethiol, an inverse linear proportionality has been noticed. Again in the oxidation of 2-PT, the rate is indifferent to [OH−] at higher concentrations of sodium hydroxide (ca. < 2.5 × 10−4M). The rate of oxidation of 1-PT increases on increasing the dielectric constant of the medium while a decrease in the rate of oxidation of 2-PT has been observed in these studies. Variation of ionic strength a...