Tetrahedron p. 5733 - 5740 (1985)
Update date:2022-08-05
Topics:
Barberan, F.A.T.
Ferreres, F.
Tomas, F.
UV and TLC techniques constitute easy procedures to distinguish between 5,6-dihydroxy-7,8-dimethoxy- and 5,8-dihydroxy-6,7-dimethoxyflavonoids, that are difficult to characterize by NMR and classical UV techniques.The acidic treatment of the original products to obtain Wessely-Moser isomers, useful for comparison purposes, yielded novel demethylated products.UV and MS data of 5,8,4' -trihydroxy-6,7,3'-trimethoxyflavone, 5,6,8,3',4'-pentahydroxy-7-methoxyflavone and 5,6,8,4'-tetrahydroxy-7,3'-dimethoxyflavone are presented for the first time.
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Doi:10.1080/00021369.1985.10866953
(1985)Doi:10.1021/om040043e
(2004)Doi:10.1055/s-1980-29227
(1980)Doi:10.1055/s-1986-31586
(1986)Doi:10.1021/jm00160a015
(1986)Doi:10.1021/jo00323a003
(1981)
