详细信息
Lewis酸催化下2-(2,3,5-三-O-苯甲酰基-D-呋喃核糖)-1,4-氢醌的合成
Synthesis of 2-(2,3,5-Tri-O-benzoyl-D-ribofuranosyl)-1,4-hydroquinone with the Catalysis of Lewis Acids
文献类型:期刊文献
中文题名:Lewis酸催化下2-(2,3,5-三-O-苯甲酰基-D-呋喃核糖)-1,4-氢醌的合成
英文题名:Synthesis of 2-(2,3,5-Tri-O-benzoyl-D-ribofuranosyl)-1,4-hydroquinone with the Catalysis of Lewis Acids
作者:何立[1];徐信[1];任志华[1];朱晨江[1];唐燕辉[1];陈国荣[1]
机构:[1]华东理工大学精细化工研究所,上海200237
年份:2006
卷号:26
期号:9
起止页码:1243
中文期刊名:有机化学
外文期刊名:Chinese Journal of Organic Chemistry
收录:CSTPCD;;Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金(No.20576034);上海市科学技术委员会(No.044307011)资助项目.
语种:中文
中文关键词:合成;呋喃糖苷;Lewis酸;立体构型
外文关键词:synthesis; ribofuranoside; Lewis acid; stereoconfiguration
摘要:在不同Lewis酸催化下,使用1,4-二苯酚和1-O-乙酰基-2,3,5-三-O-β-D-呋喃核糖进行反应,以较高产率合成了α和β型芳香呋喃糖苷,并利用1H-1HNOESY谱对2-(2,3,5-三-O-苯甲酰基-D-呋喃核糖)-1,4-氢醌(5)的立体构型进行了表征.应用无水AlCl3,ZnCl2和BF3?Et2O等Lewis酸催化剂仅得到β型氧糖苷3,应用TiCl4得到β型氧糖苷3以及α和β型碳糖苷的混合物5,而应用SnCl4则得到α和β型碳糖苷5.
Reactions of 1,4-dihydroquinone with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose in the presence of different Lewis acids afforded α- and β-aromatic ribofuranosides with good yield, and the stereoconfiguration of 2-(2,3,5-tri-O-benzoyl-D-ribofuranosyl)-1,4-hydroquinone (5) was confirmed by ^1H-^1H NOESY spectrum. Reactions catalyzed by anhydrous AlCl3, ZnCl2 or BF3·Et2O gave β-O-ribofuranoside 3, whereas TiCl4 afforded a mixture of β-O-ribofuranoside (3) and α- and β-C-ribofuranosides (5), while SnCl4 produced the α- and β-C-ribofuranosides (5).
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