申请人:——
公开号:US20040152926A1
公开(公告)日:2004-08-05
A method for producing fluorinated alcohols from fluorinated alkyl halides can produce fluorinated alcohols at high product yield and at high selectivity in a single-step reaction. The method eliminates the need to use heavy metals and other toxic compounds that are difficult to handle or process.
Specifically, the method produces a fluorinated alcohol represented by the following general formula (2):
Rf(A)OH (2)
wherein Rf represents a perfluoroalkyl group having 1 to 10 carbon atoms; and A represents a straight-chained or branched saturated hydrocarbon group having 3 to 10 carbon atoms. The method is characterized in that it allows a fluorinated alkyl halide represented by the following general formula (1) to react with an alkali metal salt of 4-hydroxybutyrate in a gamma-butyrolactone solvent:
Rf(A)X (1)
wherein Rf and A are as defined above; and X represents a halogen atom.
一种用含氟烷基卤化物生产含氟醇的方法,可在单步反应中以高产率和高选择性生产含氟醇。该方法无需使用重金属和其他难以处理或加工的有毒化合物。
具体地说,该方法可生产由以下通式(2)表示的氟化醇:
Rf(A)OH (2)
其中 Rf 代表具有 1 至 10 个碳原子的全氟烷基;A 代表具有 3 至 10 个碳原子的直链或支链饱和烃基。该方法的特征在于,它允许由以下通式(1)代表的氟化烷基卤化物在γ-丁内酯溶剂中与 4-羟基丁酸的碱金属盐反应:
Rf(A)X (1)
其中 Rf 和 A 如上定义;X 代表卤素原子。