Title of article
Cationic zirconocene- or hafnocene-based Lewis acids in organic synthesis: glycoside–flavonoid analogy
Author/Authors
Ken Ohmori، نويسنده , , Keisuke Hatakeyama، نويسنده , , Hiroki Ohrui، نويسنده , , Keisuke Suzuki، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2004
Pages
9
From page
1365
To page
1373
Abstract
Cationic metallocene species, generated from Cp2MCl2 and AgClO4 (M=Zr, Hf), were used for the glycosylation of catechin derivative , enabling a concise synthesis of a glycosyl flavonoid, astilbin (). Further study revealed the efficiency of this Lewis acidic species for SN1-type activation of the C(4) position of catechin derivative , enabling selective substitution with various nucleophiles.
Keywords
Astilbin , Catechin , Flavonoid , Hafnocene , zirconocene
Journal title
Tetrahedron
Serial Year
2004
Journal title
Tetrahedron
Record number
1084858
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