... 2-Phenyl-1-ethenyl acetate OAc 在双颈瓶中以50 ml (dimethoxy ethane)溶解4.4 g (0.11 mol)的氢化钾(potassium hydride)后，将 温度降至-5 0 C 再将配制好的苯乙醛溶液(0.1 mol)加入瓶中搅拌约10 分钟；接著加入氯乙醯溶 液(acetyl chloride in DME)，...
双语例句
1
The synthesis of key intermediate of Gliclazide can be improved by using Potassium borohydride instead of Lithium aluminum hydride. The procedure is suitable for industrial production.
本文对格列其特的中间体氮杂双环盐酸盐的合成工艺进行了改进，使工艺更适合工业化大生产的要求。
2
The technology process and production situation of the chlorine hydride absorption system in potassium sulphate process with traditional sulphuric acid process is introduced.