A method for preparing hydroxymethylfurfural, which includes: a) mixing and dissolving triose or its derivatives and solvent 1 to obtain the first reaction mixture; b) reacting the obtained first reaction mixture with Alkaline Catalyst 1 to condense into hexose; c) mixing and dissolving the resulting hexose and solvent 2 to obtain the second reaction mixture; d) adding acid catalyst 2 to the second reaction mixture, then heating the second reaction mixture at 80˜280° C. to form the third reaction mixture including hydroxymethylfurfural; e) obtaining the hydroxymethylfurfural separating by separating from the third mixture. The method is a new synthetic way for preparing 4-hydroxymethylfurfural and 5-hydroxymethylfurfural.
一种制备羟甲基
糠醛的方法,包括:a)将三糖或其衍
生物和溶剂1混合溶解以获得第一反应混合物;b)将所得的第一反应混合物与碱性催化剂1反应,缩合成己糖;c)将所得的己糖和溶剂2混合溶解以获得第二反应混合物;d)向第二反应混合物中加入酸性催化剂2,然后在80〜280℃下加热第二反应混合物,形成包括羟甲基
糠醛的第三反应混合物;e)通过从第三混合物中分离得到羟甲基
糠醛。该方法是制备4-羟甲基
糠醛和
5-羟甲基糠醛的新合成方法。