引用本文:
周成栋, 谢国龙, 林富钦. 香豆素合成工艺的改进[J]. 应用化学,
1992, 9(3): 79-82.
Citation: Zhou Chengdong, Xie Guolong, Lin Fuqin. IMPROVED METHOD OF SYNTHESIS OF COUMARIN[J]. Chinese Journal of Applied Chemistry, 1992, 9(3): 79-82.
Citation: Zhou Chengdong, Xie Guolong, Lin Fuqin. IMPROVED METHOD OF SYNTHESIS OF COUMARIN[J]. Chinese Journal of Applied Chemistry, 1992, 9(3): 79-82.
香豆素合成工艺的改进
English
IMPROVED METHOD OF SYNTHESIS OF COUMARIN
Abstract:
The synthesis of coumarin has been improved with good yield by yarying the adding order of the starting materials and using polyethylene glycol as phase transfer catalyst. Optimum molar ratios were salicylaldehyde:acetic anhydride:potassium acetate=1:3.7:0.5 and salicylaldehyde:acetic anhydride:potassium fluoride=1:3.7:0.35.
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Key words:
- coumarin
- / polyethlene glycol
- / potassium fluoride
- / potassium acetate
- / phase transfer catalysis
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