By contrast with the CN-diphenylnitrones, cold aqueous ethanolic potassium cyanide converts N-methyl-C-phenylnitrone into 1-methyl-4,5-diphenylimidazole. The scope of this reaction has been investigated, and shown to proceed via intermediate cyano-imines, some of which have been synthesised by alternative routes.
E. Cawkill and N. G. Clark, J. Chem. Soc., Perkin Trans. 1, 1980, 244 DOI: 10.1039/P19800000244
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