| 八苄基蔗糖及其水解反应产物的制备 |
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| 引用本文： | 焦岩,方志杰,江荣英.八苄基蔗糖及其水解反应产物的制备[J].化学试剂,2007,29(8):503-504,506. |
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| 作者姓名： | 焦岩 方志杰 江荣英 |
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| 作者单位： | 南京理工大学,化工学院,江苏,南京,210094 |
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| 摘 要： | 研究了八苄基蔗糖制备的新方法及其水解反应。通过对蔗糖乙酰化保护得到八乙酸蔗糖酯,再经BnCl、KOH反应得到八苄基保护的蔗糖,总收率81%。八苄基蔗糖在乙酸和硫酸溶液中水解得到2,3,4,6-四-O-苄基葡萄糖和1,3,4,6-四-O-苄基果糖,收率分别为29%和25%。产物结构经1HNMR确证。
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| 关 键 词： | 蔗糖 八乙酸蔗糖酯 八苄基蔗糖 四苄基葡萄糖 四苄基果糖 |
| 文章编号： | 0258-3283（2007）08-0503-02 |
| 修稿时间： | 2007-02-12 |
Study on the preparation and hydrolyzation of octa-O-benzyl sucrose |
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| JIAO Yan,FANG Zhi-jie,JIANG Rong-ying.Study on the preparation and hydrolyzation of octa-O-benzyl sucrose[J].Chemical Reagents,2007,29(8):503-504,506. |
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| Authors: | JIAO Yan FANG Zhi-jie JIANG Rong-ying |
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| Abstract: | A new route for preparation and hydrolyzation of octa-O-benzyl sucrose was described in this paper.Firstly,sucrose octaacetate was prepared via acetylation of sucrose,then,octa-O-benzyl sucrose was obtained from benzylation of sucrose octaacetate using BnCl and KOH as the reagents,resulting in a product yield of 81% after two steps of reactions.Finally,2,3,4,6-tetra-O-benzyl glucopyranose and 1,3,4,6-tetra-O-benzyl fructofuranose were obtained by hydrolyzation of octa-O-benzyl sucrose in aqueous AcOH and sulfuric acid to achieve a yield of 29% and 21%,respectively.The structure of products was confirmed by 1HNMR.This process has promising prospects for application. |
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| Keywords: | sucrose sucrose octaacetate octa-O-benzyl sucrose tetra-O-benzyl glucopyranose tetra-O-benzyl-fructofuranose |
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