硫酸亚铁铵的制备及组成分析实验多维互动教学模式探索与实践

Multi-dimensional interactive teaching mode focuses on the teacher-student and student-student interactions. It implements the education conception of student as the subject and teacher as the guider. It is an effective way to cultivate high quality individuals with innovative and practical abilities. This paper sets forth the necessity and measures to carry out the multi-dimensional interactive teaching mode in the laboratory teaching of preparation of ferrous ammonium sulfate. The measures include defining the teaching aim, asking interactive questions, experiencing interactive activities and conducting interactive evaluation. Those measures make it possible to achieve the goals of promoting the students' comprehensive development of knowledge, ability, emotion, attitude as well as personal integrity.     

三聚联苯醚类大环化合物的合成

在温和条件下, 以3,3 -二溴-4,4 -联苯二酚和1,2-二溴乙烷或1,4-二溴丁烷为原料, 经过两步反应方便地合成了三聚联苯醚类大环化合物4a和4b, 并通过¹H NMR, ¹³C NMR, HRMS对中间体和目标化合物的结构进行了表征.     

无溶剂研磨条件下芳基亚甲基麦氏酸的合成

将芳香醛、麦氏酸与NaHCO₃置于研钵中, 在无溶剂存在下通过研磨可以发生缩合反应, 反应产率良好.