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    • 2. 发明授权
    • 1,2,4-부탄트리올의 제조 방법
    • 1,2,4-부탄트리올의제조방법
    • KR100928656B1
    • 2009-11-27
    • KR1020047020266
    • 2003-06-13
    • 가부시키가이샤 오사카소다
    • 후루카와요시로오타카세이지
    • C07C29/147C07C31/22C07B53/00
    • C07C29/147C07B2200/07C07C31/22
    • An object of the present invention is to provide a simple and low-cost process for preparing 1,2,4-butanetriol. Malic diester, 3-hydroxy- gamma -butyrolactone or 3,4-dihydroxybutanoate represented by the following formula (I) or a mixture thereof, which is a raw material, is reduced in a medium in the presence of sodium borohydride to give 1,2,4-butanetriol represented by the following formula (II). In the process, sodium borohydride is added to a first alcohol, the raw material is added to a second alcohol which is different from the first alcohol, and they are reacted each other. In the formula, R is alkyl having four or less carbon atoms.
    • 本发明的一个目的是提供一种用于制备1,2,4-丁三醇的简单且低成本的方法。 作为原料的苹果酸二酯,3-羟基-γ-丁内酯或由下式(I)表示的3,4-二羟基丁酸酯或其混合物在硼氢化钠存在下在介质中还原,得到1, 由下式(II)表示的2,4-丁三醇。 在该方法中,将硼氢化钠加入到第一醇中,将原料加入到与第一醇不同的第二醇中,并使它们彼此反应。 在该式中,R是具有四个或更少碳原子的烷基。 < CHEM> < CHEM>