The reaction of benzopentalenequinone with alkynes bearing an aniline moiety provides access to two classes of push–pull chromophores with interesting optoelectronic properties. The regioselective [4+2] cycloaddition/[4+1] retrocycloaddition sequence gives fluorenone derivatives, and the formal regioselective [2+2] cycloaddition/ring-opening reaction in polar solvents generates hitherto unknown benzazulenequinone derivatives.
All Science Journal Classification (ASJC) codes
- Drug Discovery
- Organic Chemistry