Synthesis of coumaran-5-OLS - New model compounds for bioantioxidants
Based on a Heck type reaction a new access to coumaran-5-ols has been developed. The reaction, its analytical and synthetical features as well as the nature of some by-products are discussed.
Sch?del, Uta,Habicher, Wolf D.
p. 1049 - 1055
(2007/10/03)
TRANSFORMATION DU CATION ISOFLAVYLIUM EN PHENYL-3 COUMARINES, ISOFLAVENES-3 ET ISOFLAVANNES
Isoflavylium salts 1 are key starting materials for synthesis of 3-phenyl coumarins 2,isoflav-3-enes 4 and isoflavans 5, by chemical conversions narrowsly apparented to biogenetic pathways actually recognized for natural compounds of these series.