Abstract
Abstract In order to examine the possibility of the direct introduction of a cyano radical into cyclohexane by means of silent discharge, a mixture of cyclohexane and hydrogen cyanide was discharged in an ozonizer under various conditions. As a result, cyclohexyl cyanide was obtained. The yield of cyclohexyl cyanide depended upon the voltage of discharge, the residence time in the discharge tube, the temperature of the discharge tube, and the structual characteristics of the apparatus. In the refluxing method the maximum yield of cyclohexyl cyanide was obtained when the discharge was carried out at a low temperature. Besides cyclohexyl cyanide, the reaction products were confirmed to consist of bicyclohexyl, cyclohexene, methylcyclohexane, ethylcyclohexane, 3-cyclohexylcyclohexene, methylenecyclohexane, 1-hexene, n-hexane, n-pentane, methylcyclopentane, a solid brown deposit, and cracked gas. The principal reactions can be interpreted as being the formation of cyclohexyl and cyano radicals and the combination of these radicals, their dehydrogenation, their isomerization, their polymerization, and their decomposition.
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