Title of article
Efficient synthesis of kaempferol 3,7-O-bisglycosides via successive glycosylation with glycosyl ortho-alkynylbenzoates and trifluoroacetimidates
Author/Authors
Yang، نويسنده , , Weizhun and Sun، نويسنده , , Jiansong and Yang، نويسنده , , Zhongyi and Han، نويسنده , , Wei and Zhang، نويسنده , , Wei-Dong and Yu، نويسنده , , Biao، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2012
Pages
4
From page
2773
To page
2776
Abstract
Selective glycosylation of the 3-OH of 5,4′-di-O-acetyl-kaempferol was achieved with glycosyl ortho-alkynylbenzoates as donors under the catalysis of Ph3PAuNTf2, and subsequent glycosylation of the remaining 7-OH with glycosyl trifluoroacetimidates under the catalysis of BF3·OEt2, after global deprotection, afforded the kaempferol 3,7-O-bisglycosides conveniently.
Keywords
kaempferol , Selective glycosylation , Glycosyl ortho-alkynylbenzoate , glycosyl trifluoroacetimidate
Journal title
Tetrahedron Letters
Serial Year
2012
Journal title
Tetrahedron Letters
Record number
1880838
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