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- W2359797144 abstract "7-Hydroxyflavone xyloside and 7-hydroxyflavone rhamnoside were synthesized by phase transfer catalysis from bromo-acetyl-sugar and 7-hydroxyflavone in the presece of weak base 1 mol/L KCl/NaHCO3.The effects of reaction conditions such as reaction methods,reaction temperature and the molar ratio of materials on reaction yield were studied.The opti-mal reaction conditions were as follows: ratio of 7-hydroxyflavone to bromo-acetyl-sugar is 1∶1.6,reaction time is 15 h,reaction tempreture is 40 ℃ and acetone as solvent.The yield of the reaction reached 64% and 59%.The stuctures were conformed by IR,1H-NMR and MS." @default.
- W2359797144 created "2016-06-24" @default.
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- W2359797144 date "2010-01-01" @default.
- W2359797144 modified "2023-09-23" @default.
- W2359797144 title "Synthesis of 7-Hydroxyflavone Xyloside and 7-Hydroxyflavone Rhamnoside" @default.
- W2359797144 hasPublicationYear "2010" @default.
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