Article ID Journal Published Year Pages File Type
5267050 Tetrahedron Letters 2012 4 Pages PDF
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.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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