Acrylonitrile Radical Anion by Scanning Electrochemical Microscopy
نویسنده
چکیده
A long-sought goal in electrochemistry has been the observation of the intermediate, presumably the anion radical, produced in the electrohydrodimerization (EHD) of acrylonitrile (AN). The EHD of activated olefins is an important class of electroorganic reactions, especially because a commercial process for adiponitrile synthesis is based upon the EHD of a~rylonitrile.l-~ A number of studies of the EHD of more sterically hindered olefins, e.g., dialkyl fumarates and fumaronitrile, have a ~ p e a r e d . ~ , ~ On the basis of these, the proposed reaction mechanism involves electrogeneration of the radical anion, R-, followed by dimerization of Rand then protonation to yield the hydrodimer:
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