Summary We have isolated a number of tetra substituted methylene immonium salts and proved their structure by identifying the products of the hydrolysis of the immonium ion, and by the isolation of the expected tertiary amine when treated with a Grignard reagent. A preliminary study of the reactions of such immonium ions with hydroxide, cyanide, ethylate, and hydroxylammonium ions has been made. Some evidence€ or the existence of the ...
