Study on preparation of 3′,4′,7-Tri[O-(2-hydroxyethyl)] rutin
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www.lunwen.net.cn 中国论文网Mfrlunwen.net.cnfKW
www.lunwen.net.cn 中国论文网Mfrlunwen.net.cnfKW
[Abstract] Objective To investigate synthetic process and conditions of 3′,4′,7-tri[O-(2- hydroxyethyl)] rutin and select its better solvent for crystallization to optimize its technics and increase its content.Methods It was synthesized by rutin and ethyleneoxide in methanol-water or water,which was catalyzed by sodium monoxide.Results Showed that the synthetic process of 3′,4′,7-tri[O-(2-hydroxyethyl)] rutin pass an optimizing point when it had the highest content,and the content of its product could reach over 73%,and that methanol was better solvent for crystallization,after refining the content of its product was over 90%.Conclusion Methanol is the optimal crystal solvent for synthesizing rutin,it can increase the contents of the rutin.
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