Browsing by Subject "4-chromanone"

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    Synthesis of Natural Homoisoflavonoids Having Either 5,7-Dihydroxy-6-methoxy or 7-Hydroxy-5,6-dimethoxy Groups
    (MDPI, 2016-08) Lee, Hyungjun; Yuan, Yue; Rhee, Inmoo; Corson, Timothy W.; Seo, Seung-Yong; Department of Ophthalmology, IU School of Medicine
    Naturally occurring homoisoflavonoids containing either 5,7-dihydroxy-6-methoxy or 7-hydroxy-5,6-dimethoxy groups such as the antiangiogenic homoisoflavanone, cremastranone, were synthesized via three or four linear steps from the known 4-chromenone. This facile synthesis includes chemoselective 1,4-reduction of 4-chromenone and selective deprotection of 3-benzylidene-4-chromanone a containing C7-benzyloxy group.