Dicyclopenta[ef,kl]heptalene (azupyrene) chemistry. Electrophilic substitution on 1- and 4-substituted azupyrenes. Substituent spectral effects for mono- and disubstitution derivatives
Dicyclopenta[ef,kl]heptalene (azupyrene) chemistry. Electrophilic substitution on 1- and 4-substituted azupyrenes. Substituent spectral effects for mono- and disubstitution derivatives