7,7-Difluoropentaphen-6(7H)-one

Abstract

A new fluorinated pentaphene derivative has been obtained as a potential precursor for fluorinated polycyclic aromatic hydrocarbons. In this work, 7,7-difluoropentaphen-6(7H)-one was prepared from 1,1-difluoroanthracen-2(1H)-one via the Diels–Alder reaction with o-quinodimethane generated in situ from o-bis(dibromomethyl)benzene. The structure of the newly synthesized compound was confirmed by 1H, 13C, 19F NMR, IR and UV/Vis spectroscopy, as well as high-resolution mass spectrometry.