引用本文:
温辉梁, 方志杰, 胡海威, 赵燕. 2,3,6,3',4'-五氧乙酰基蔗糖的合成与表征[J]. 应用化学,
2007, 24(1): 35-39.
Citation: WEN Hui-Liang, FANG Zhi-Jie, HU Hai-Wei, ZHAO Yan. The Synthesis and Structure Characterization of 2,3,6,3', 4'-Penta-oxyacetylsucrose[J]. Chinese Journal of Applied Chemistry, 2007, 24(1): 35-39.
Citation: WEN Hui-Liang, FANG Zhi-Jie, HU Hai-Wei, ZHAO Yan. The Synthesis and Structure Characterization of 2,3,6,3', 4'-Penta-oxyacetylsucrose[J]. Chinese Journal of Applied Chemistry, 2007, 24(1): 35-39.
2,3,6,3',4'-五氧乙酰基蔗糖的合成与表征
English
The Synthesis and Structure Characterization of 2,3,6,3', 4'-Penta-oxyacetylsucrose
Abstract:
2,3,6,3',4'-Penta-O-acetylsucrose(6-PAS) was synthesized from sucrose via tritylation, acetylation, detritylation and acetyl migration.An effective reagent protecting the hydroxyls of sucrose was used to improve the yield of the reaction.In the process of protecting, the effects of reaction temperature and reaction time were studied.The two steps of detritylation and acetyl migration were analyzed by HPLC to chose the better route.The products were characterized by means of 1H NMR and IR.The result shows that the optimum conditions for protecting hydroxyl are:tritylation at 50℃ for 4 h and acetylation at 105℃ for 3 h.The yield is 81.9%.
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