由于在另一工作中需较纯的氟乙酰氯以作氟乙酰基化的试剂,我们进一步研究氟乙酸和氟乙酰氯的制备,希望找到较简便而原料易得的制备方法。应用最多的氟乙酸的制备方法是将氟乙酸酯先制成纳、钙或钡盐,然后再用硫酸分解制得氟乙酸。应用这法时,反应要分两步进行,且须分离和干燥氟乙酸盐。因此我们 Because of the need for more pure fluoroacetyl chloride in another work as a reagent for fluoroacetylation, we further study the preparation of fluoroacetic acid and fluoroacetyl chloride. We hope to find a simple and easy-to-obtain preparation method. The most widely used method of preparing fluoroacetic acid is to prepare fluoroacetate into sodium, calcium or barium salt and then decompose it with sulfuric acid to obtain fluoroacetic acid. When this method is used, the reaction proceeds in two steps and the fluoroacetate must be separated and dried. therefore, we