Sonogashira reaction on quinolizium cations.


The four isomeric bromoquinolizium bromides reacted with aryl- and heteroarylacetylenes under Sonogashira conditions. The reactions proceed with moderate-to-high yields to afford aryl- and heteroarylethynyl quinolizium cations. This is the first reported example of the Sonogashira reaction on heteroaromatic cations, and it allowed easy access to potential pi-donor pi-acceptor systems bearing cationic units.

Cite this paper

@article{Garcia2004SonogashiraRO, title={Sonogashira reaction on quinolizium cations.}, author={Domingo Garcia and Ana M Cuadro and Julio Alvarez-Builla and Juan Jos{\'e} Vaquero}, journal={Organic letters}, year={2004}, volume={6 23}, pages={4175-8} }