3-(2,3,4,5,6-pentafluorophenyl)prop-2-ynal

3-(2,3,4,5,6-pentafluorophenyl)prop-2-ynoic acid

1-ethynyl-2,3,5,6-tetrafluoro-4-methoxybenzene

4-ethynyl-2,3,5,6-tetrafluoroaniline

1,2,3,4,5-pentafluoro-6-(2,3,5,6-tetrafluorophenyl)benzene