ChemInform Abstract: Reaction of Pyrylium Salts with Nucleophiles. Part 21. Unexpected Formation of 6,6‐Dimethyl‐5‐isopropyl‐2,4‐cyclohexadienylidene‐1‐imines from Primary Amines and 2,6‐Diisopropylpyrylium Salts.

Abstract The pyrylium perchlorates (I) react with the primary amines (II), producing the pyridinium perchlorates (III) and the iminium salts (IV).