title: Diels-Alder cycloaddition of acetylene gas to a polycyclic aromatic hydrocarbon bay region.
abstract: The direct conversion of a polycyclic aromatic hydrocarbon bay region to a new, unsubstituted benzene ring by Diels-Alder cycloaddition of acetylene gas is reported for the first time. At 140 °C in dimethylformamide, under 1.8 atm pressure of acetylene gas, 7,14-dimesitylbisanthene is slowly converted to 7,14-dimesitylbenzo[ghi]bisanthene (21% conversion in 48 h).
authors: Merkert Chemistry Center, Department of Chemistry, Boston College, Chestnut Hill, MA 02467-3860, USA.
authors: Eric H
authors: EH
authors: Fort
authors: Matthew S
authors: MS
authors: Jeffreys
authors: Lawrence T
authors: LT
authors: Scott