1968 Volume 41 Issue 9 Pages 2161-2164
The present investigation was undertaken to examine the possibility of the direct introduction of a cyano radical into ethylene by means of a silent discharge. When a mixture of ethylene and hydrogen cyanide was discharged in an ozonizer under atmospheric pressure, the main liquid product was acrylonitrile, though the formation of telomers, such as ethyl cyanide, n-butyl cyanide and n-hexyl cyanide, was also observed. Besides these compounds, the reaction products were confirmed to consist of s-butyl, n-propyl, isopropyl, n-amyl, and isoamyl cyanides, and a gaseous product. The yield of acrylonitrile was affected by the temperature and voltage of the discharge. It has been found that the yields of the liquid products and the gaseous product increase with the rise in the temperature and voltage of the discharge, while the relative ratio of acrylonitrile to the other liquid product decreases. Judging from the relative concentration of each compound in the reaction products, it may be said that the vinyl radical and the cyano radical are the main intermediates in this reaction system.
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