methyl 5,5,5-trifluoropent-2-enoate

(E)-5,5,5-Trifluoro-pent-3-enoic acid methyl ester

3,4-Bis-(2,2,2-trifluoro-ethyl)-hexanedioic acid dimethyl ester

1-methoxybuta-1,3-dienoxy(trimethyl)silane

methyl 4-acetyloxybut-2-enoate