摘要:以固体超强酸SO42-/TiO2-MoO3为多相催化剂,对以苯甲醛和乙二醇为原料合成苯甲醛乙二醇缩醛的反应条件进行了研究.实验表明:SO42-/TiO2-MoO3是合成苯甲醛乙二醇缩醛的良好催化剂,较系统地研究了醛醇摩尔比、催化剂用量、反应时间诸因素对收率的影响.最佳反应条件为:n(苯甲醛)∶ n(乙二醇) =1∶1.3,催化剂用量为反应物料总质量的0.75%,环己烷为带水剂,反应时间40 min.上述条件下,苯甲醛乙二醇缩醛的收率可达82.7%.
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