192655-92-8Relevant articles and documents
Reactive dications: The superacid-catalyzed reactions of alkynes bearing adjacent N-heterocycles or amine groups
Klumpp, Douglas A.,Rendy, Rendy,Zhang, Yun,McElrea, Aaron,Gomez, Alma,Dang, Han
, p. 8108 - 8110 (2004)
A variety of aminoalkynes and related heterocycles are reacted in the Bronsted superacid CF3SO3H (triflic acid), and products are obtained in generally good yields (69-99%) from Friedel-Crafts-type reactions. The reactions are consistent with the formation of novel dicationic intermediates having a vinyl cationic site and an adjacent protonated N-heterocycle or ammonium cation.