机构地区: 中南林学院工业学院
出 处: 《实验室研究与探索》 2006年第2期223-224,共2页
摘 要: 引导学生进行研究性学习,得到了利度卡因的中间体α-氯-2,6-二甲基乙酰苯胺合成的优化工艺条件,在甲苯.碳酸钠体系中于20~35℃反应1.5h,实验方案改进后,实验客易操作、控制,收率在90%以上。 The optimizing process conditions of preparing α-chloro-2,6-dimethylaniline used as using toluene-Na2 CO3 solution and reacting 1.5h at 20 - 35 ℃, was obtained by guiding students The improved experiment is easily operated and controlled, and the yield is over 90%. intermediate of lidocaine , to perform inquiry-learning.