Synthesis method of (E)-2-butene-1, 4-diol

The invention discloses a synthesis method of (E)-2-butene-1, 4-diol, which comprises the following step: in an organic solvent, carrying out reduction reaction on a compound as shown in a formula I in the presence of NaBH4 and Lewis acid to obtain (E)-2-butene-1, 4-diol, wherein the Lewis acid is CaCl2 (calcium chloride) and/or ZnCl2 (zinc chloride); in the compound shown in the formula I, R and R'are C1-3 alkyl respectively, and the synthesis method of (E)-2-butene-1, 4-diol has one or more advantages as follows: the reaction yield is high, the cost is low, the reaction risk is low, aftertreatment is simple, pollution is small, and the synthesis method is easily applied to the industry. 本发明公开了一种(E)-2-丁烯-1,4-二醇的合成方法，其包括以下步骤：有机溶剂中，将式I所示化合物在NaBH4和Lewis酸的存在下进行还原反应得到所述(E)-2-丁烯-1,4-二醇；其中，所述Lewis酸为CaCl2和/或ZnCl2；所述式I所示化合物中，R和R'分别为C1-3烷基。本发明(E)-2-丁烯-1,4-二醇的合成方法具有如下一个或多个优点：反应收率高、成本低、反应危险性低、后处理简单、污染小、易于应用于工业。