1: ethyl 3,3,3-trifluoro-2-hydroxypropanoate With sodium tetrahydroborate in ethanol T=20°C; 12 h; 2: C5H8BF3O3 With sulfuric acid in methanol; water 24 h; Heating / reflux;

sodium hydrogencarbonate in ethyl acetate

lithium aluminium tetrahydride in tetrahydrofuran RefluxCooling with ice;

pyridine; Na2S2O5; osmium(VIII) oxide multistep reaction; stoichiometric and catalytic oxidation of electron-poor olefins with OsO4; other fluoroolefins;