CYCLODEHYDROGENATION OF 2'-HYDROXYCHALCONES WITH HYPERVALENT IODINE REAGENT - A NEW SYNTHESIS OF FLAVONES

Authors
LITKEI G GULACSI K ANTUS S BLASKO G
Citation
G. Litkei et al., CYCLODEHYDROGENATION OF 2'-HYDROXYCHALCONES WITH HYPERVALENT IODINE REAGENT - A NEW SYNTHESIS OF FLAVONES, Liebigs Annalen, (9), 1995, pp. 1711-1715
Citations number
33
Categorie Soggetti
Chemistry
Journal title
Liebigs Annalen → ACNP
ISSN journal
09473440
Issue
9
Year of publication
1995
Pages
1711 - 1715
Database
ISI
SICI code
0947-3440(1995):9<1711:CO2WHI>2.0.ZU;2-B
Abstract
A new synthesis of chrysin (1) and luteolin (4) was accomplished by th e cyclodehydrogenation of the appropriately substituted 2'-hydroxychal cones 21 and 22 in the presence of iodosobenzene diacetate/potassium h ydroxide in methanol. The scope and Limitation of this transformation is discussed.