Synthesis of 7,9-diphenyl-8-tropyliumyl-8H-cyclopent[a]acenaphthylene cation having an intramolecular charge-transfer interaction and its transformation into the sesquifulvalene derivative
Synthesis of 7,9-diphenyl-8-tropyliumyl-8H-cyclopent[a]acenaphthylene cation having an intramolecular charge-transfer interaction and its transformation into the sesquifulvalene derivative