IONIC PATHWAYS TO 2,3-BENZOFLUORANTHENE

The protonation of 9-phenylanthracene by decay and radiolytic techniqu es was carried out in the gaseous phase. The intermediate, a free ion formed with an excess of vibrational energy, underwent fragmentation, intermolecular and intramolecular condensation reactions. The yields o f the products are dependent on the protonation exothermicity, whose i ncrease favours the fragmentation process. The self-condensation react ion leads to the formation of 2,3-benzofluoranthene.