Oxidation of Flavonols using lead(IV) acetate in acidic methanol
Oxidation of Flavonols (1a-h) and 6-propionylflavonols (1i-j) to 2,3-dimethoxy-3-hydroxyflavanones (2a-h) and 2,3-dimethoxy-3-hydroxyflavanones (2i-j), respectively using lead(IV) acetate in methanol in presence of perchloric acid and the mechanism of this transformation has been described.
Kumar,Singh
p. 1333 - 1337
(2007/10/02)
HYPERVALENT IODINE OXIDATION OF FLAVONOLS USING BENZENE IN METHANOL
Hypervalent iodine oxidation of various flavonols (1a-1f) and α-naphthoflavonol (3) using benzene (HTIB) in methanol leads to the formation of 2,3-dimethoxy-3-hydroxyflavanones (2a-2f) and 2,3-dimethoxy-3-hydroxy-α-naphthoflavanone (4) respectively.HTIB resembles periodic acid in its oxidative behavior towards flavonols.
Moriarty, Robert M.,Prakash, Om,Musallam, Hikmat A.,Mahesh, Vijendra K.
p. 1641 - 1645
(2007/10/02)
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