Abstract The synthesis and isolation of heptafulvene ( 1 ) and sesquifulvalene ( 2 ) is reported: Acetoxy‐tropylium‐fluoroborate ( 10 ) may be prepared by addition of tropone to acetyl‐fluoroborate at low temperatures. The tropylium salt reacts easily with methyllithium and sodium cyclopentadienide ...
No comments yet
Be the first to share your thoughts!