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2005
Carbohydrates
U 0500
Neighboring Group Participation of 9-Anthracenylmethyl Group in GlycosylaPreparation of Unusual C-Glycosides. — The glycosylation of sugar deriva34- 255 tion:
tives (I) and (IV) is studied. Starting from (I) the expected O-glycosides are obtained,
however, with low stereoselectivity. In the case of (IV) an unusual reaction takes place
which leads to C-glycosides of type (V)/(VI). Three new chiral centers are created in a
highly stereoselective manner. — (KULKARNI, S. S.; LIU, Y.-H.; HUNG*, S.-C.; J.
Org. Chem. 70 (2005) 7, 2808-2811; Inst. Chem., Acad. Sin., Taipei 115, Taiwan;
Eng.) — Jannicke
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