Title of article
Regioselective 6-iodination of 5,7-dioxygenated flavones by benzyltrimethylammonium dichloroiodate
Author/Authors
Quintin، نويسنده , , Jérôme and Lewin، نويسنده , , Guy، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2004
Pages
4
From page
3635
To page
3638
Abstract
The iodination of 5,7-dioxygenated flavones with 1 equiv of benzyltrimethylammonium dichloroiodate (BTMA·ICl2) in the system CH2Cl2–MeOH–CaCO3 at room temperature is presented in this note. Flavones with a free phenol group at C5 and an alkoxy or a peracylglycosyloxy at C7 lead to the 6-iodoflavones with a good regioselectivity (ratio 6-iodination/8-iodination about 9).
Keywords
Benzyltrimethylammonium dichloroiodate , Flavonoids , iodination , Flavones
Journal title
Tetrahedron Letters
Serial Year
2004
Journal title
Tetrahedron Letters
Record number
1841473
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