Preparation method of 2-perfluorpropoxy-2,3,3,3-tetrafluoro-propanol

The invention provides a preparation method of 2-perfluorpropoxy-2,3,3,3-tetrafluoro-propanol. The preparation method of the 2-perfluorpropoxy-2,3,3,3-tetrafluoro-propanol comprises the following steps: in an aprotic solvent, taking at least one of perfluo-2-methyl-3-oxa-hexanoyl fluoride, perfluo-2-methyl-3-oxa-methyl caproate and perfluo-2-methyl-3-oxa-ethyl hexanoate as raw materials; and carrying out reduction on the raw materials via sodium borohydride/or potassium borohydrate to obtain the final product. The provided preparation method has the advantages of high selectivity, high yield and low cost. 本发明提供了种制备2-全氟丙氧基-2,3,3,3-四氟丙醇的方法，包括在非质子溶剂中，以选自全氟-2-甲基-3-氧杂-己酰氟、全氟-2-甲基-3-氧杂-己酸甲酯和全氟-2-甲基-3-氧杂-己酸乙酯中的至少种为原料，经硼氢化钠/或硼氢化钾还原后得到。本发明提供的制备方法，具有选择性高、收率高、成本低的优点。