کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1390564 | 983102 | 2011 | 5 صفحه PDF | دانلود رایگان |
Condensation between unprotected aldoses and dibenzoylmethane catalyzed by NaHCO3 in the cosolvents EtOH and H2O (4:1) under microwave irradiation gave aryl ketone β-C-glycosides 6b–i in higher yields (from 50% with C-riboside 6g up to 99% with C-glucoside 6b) and better anomeric selectivities (β-configuration >95%) in a shorter reaction time (90 min), compared with previous conventional methodologies. This method provides an attractive alternative to the existing means for the preparation of high value ketone β-C-glycosides.
Condensation between unprotected aldoses and dibenzoylmethane catalyzed by NaHCO3 in the co-solvents EtOH–H2O (4:1) under microwave irradiation gave aryl ketone β-C-glycosides 6b-i with higher yields (from 50% with C-riboside 6g up to 99% with C-glucoside 6b) and better anomeric selectivities (β-configuration >95%) in a shorter reaction time (90 min), compared with previous conventional methodologies.Figure optionsDownload as PowerPoint slide
Journal: Carbohydrate Research - Volume 346, Issue 2, 1 February 2011, Pages 352–356