Catalytic, stereoselective glycosylation -: Spiroketalization of 3,4,5-tri-O-benzyl-β-D-fructopyranose generating DI-D-fructopyranose-1,2′:2,1′-dianhydride

被引:3
|
作者
Kaji, Eisuke [1 ]
Saiga, Reiko [1 ]
Kurimoto, Emiko [1 ]
Nishino, Takashi [1 ]
机构
[1] Kitasato Univ, Sch Pharmaceut Sci, Minato Ku, Tokyo 1088641, Japan
关键词
D O I
10.3987/COM-06-S(O)50
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
alpha-D-Fructopyranose beta-D-fructopyranose-1,2':2,1'-dianhydride has been stereoselectively synthesized by tandem catalytic glycosylation-spiroketalization of 3,4,5-tri-O-benzyl-beta-D-fructo- pyranose. Of the several protic acid catalysts which exist, 0.3 molar equivalent trifluoromethane sulfonic acid in toluene was found to be most effective to afford the dianhydride in good yield.
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页码:385 / +
页数:10
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