(E/Z)-methyl 4-oxo-2-(trifluoromethyl)pent-2-enoate

2-(trifluoromethyl)pent-4-enoic acid

2-trifluoromethyl-4-pentenoic acid methyl ester

methyl 2-carbonofluoridoyl-2-(trifluoromethyl)pent-4-enoate

乙醇