3-三氟甲基苯酚

2-chloro-2-trifluoromethylcyclopentene-1,3-dione

2-trifluoromethyl-2,3-epoxy-p-benzoquinone

5-chloro-1-hydroxy-4-oxo-5-trifluoromethylcyclopent-2-ene-carboxylic acid