Method for preparing hydroxy fatty acid with high selectivity

The invention relates to the field of catalytic chemistry and biomass resource utilization, in particular to a method for preparing hydroxy fatty acid with high selectivity. The hydroxy fatty acid is prepared by adopting a method of selectively oxidizing dihydric alcohol, the oxidation reaction is carried out by utilizing the characteristic that an alpha C-H bond of methylal is easy to oxidize, high-selectivity and high-yield preparation of the hydroxy fatty acid is realized under mild conditions, and the total yield of the hydroxy fatty acid is up to 80% or above. The preparation method has the characteristics of simplicity in operation, safety, high efficiency, environmental friendliness, low cost and the like, and has a good industrial application prospect. 本发明涉及催化化学和生物质资源利用领域，尤其涉及一种高选择性制备羟基脂肪酸的方法。本发明采用选择性氧化二元醇的方法制备羟基脂肪酸，利用甲缩醛αC-H键易于氧化的特点进行氧化反应，在温和条件下实现了羟基脂肪酸高选择性、高收率的制备，羟基脂肪酸的总收率高达80％以上。该制备方法具备操作简单、安全高效、对环境友好、成本低等特点，具有良好的工业化应用前景。