Divergent approach to flavones and aurones via dihaloacrylic acids. Unexpected dependence on the halogen atom.
نویسندگان
چکیده
The reaction of phenols with 7a led to the synthesis of aurones, while the reaction of phenols with 7b led to the synthesis of flavones.
منابع مشابه
A comprehensive review of the oxidative cyclisation of 2’-hydroxychalcones to aurones and flavones
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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ورودعنوان ژورنال:
- Organic letters
دوره 12 22 شماره
صفحات -
تاریخ انتشار 2010