Reactive dications: the superacid-catalyzed reactions of alkynes bearing adjacent N-heterocycles or amine groups |
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| Authors: | Klumpp Douglas A Rendy Rendy Zhang Yun McElrea Aaron Gomez Alma Dang Han |
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| Affiliation: | Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA. dklumpp@niu.edu |
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| Abstract: | A variety of aminoalkynes and related heterocycles are reacted in the Bronsted superacid CF(3)SO(3)H (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. |
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