Fluorescent 2‐Hydroxy‐3‐(pyridin‐2‐yl)‐4H‐quinolizin‐4‐ones through Dimerization of Pyridineacetic Acids

Abstract

Pyridineacetic acids undergo dimerization under action of the activating agents, giving rise to 2-hydroxy-3-(pyridin-2-yl)-4Hquinolizin-4-ones. The introduction of a difluoroboryl bridge into such derivatives leads to novel highly fluorescent compounds.