Halogenated benzo[c]phenanthrenes with a halogen in the hindered fiord region are prepared by the photochemical cyclisation of appropriately substituted stilbenes. Pyrolysis gives the corresponding benzo[ghi]fluoranthrenes in moderate yields. At higher temperatures a competing rearrangement pathway to cyclopenta[cd]pyrene occurs.
|Number of pages||7|
|Journal||Journal of the Chemical Society - Perkin Transactions 1|
|Publication status||Published - 7 Oct 1997|