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The reaction of hydrogen atoms with 1-butanethiol and thiolane the role of chemically activated 1-butanethiol

✍ Scribed by Osamu Horie; Junya Nishino; Akira Amano

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
590 KB
Volume
10
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The reaction of 1‐butanethiol with hydrogen atoms has been studied at temperatures of 295° and 576° K under the pressure of 660 Pa, using a conventional discharge‐flow apparatus. The reaction products (besides hydrogen sulfide and methane) under the low conversion range (∼10%) consisted mainly of n‐butane, 1‐butene, and propylene‐propane, with the relative yields of 70, 25, and 5% at 295° K and 25, 50, and 10% at 576°K. Analysis of kinetic equations by numerical integration indicates that the following initial steps are consistent with the experimental results:
equation image
where the following expressions have been derived for k~1~ and k~2~:

The subsequent reaction of the butylthio radical with hydrogen atoms leads to the chemically activated 1‐butanethiol which either stabilizes to 1‐butanethiol or decomposes to 1‐butene and hydrogen sulfide, depending on the experimental conditions. A similar analysis of the data on the thiolane‐H system has yielded the following rate parameters for the initial step to form the 4‐mercapto‐1‐butyl radical:
equation image
.

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