Trifluoracetyl-glyoxylsaeure-aethylester-α-hydrazon

ethyl 2-diazo-3-oxo-4,4,4-trifluorobutanoate

Trifluoracetyl-glyoxylsaeure-aethylester-triphenylphosphazin-(2)

ethyl 4,4,4-trifluoro-3-hydroxybut-2-enoate

乙醇