Example：10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
Bidirectional Synthesis, Photophysical and Electrochemical Characterization of Polycyclic Quinones Using Benzocyclobutenes and Benzodicyclobutenes as Precursors European Journal of Organic Chemistry (IF3.021), Pub Date : 2021-09-03, DOI: 10.1002/ejoc.202100848 Amr Mohamed Abdelmoniem, Ismail Abdelshafy Abdelhamid, Holger Butenschön
The synthesis of some new extended polycyclic quinones was achieved through a one-pot procedure comprising the cycloaddition of benzocyclobutene and benzodicyclobutene derivatives with benzoquinone or naphthoquinone. Notably, a highly symmetrical nonacene-hexaone could be prepared, albeit in low yields (5–7 %).