[PDF][PDF] A comprehensive review of the oxidative cyclisation of 2'-hydroxychalcones to aurones and flavones

IB Masesane�- Int. J. Chem. Stud, 2015 - researchgate.net
Int. J. Chem. Stud, 2015researchgate.net
The oxidative cyclisation reactions of 2'-hydroxychalcones to corresponding aurones and
flavones are discussed. While Hg2+, Cu2+ and Tl3+-mediated oxidative cyclisation of 2'-
hydroxychalcones selectively give aurones, I2, Se4+, In3+, Cu+ and Fe3+-mediated
reactions preferable give flavones. The general mechanisms of these oxidative cyclisation
reactions are proposed.
Abstract
The oxidative cyclisation reactions of 2’-hydroxychalcones to corresponding aurones and flavones are discussed. While Hg2+, Cu2+ and Tl3+-mediated oxidative cyclisation of 2’-hydroxychalcones selectively give aurones, I2, Se4+, In3+, Cu+ and Fe3+-mediated reactions preferable give flavones. The general mechanisms of these oxidative cyclisation reactions are proposed.
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