Heterocyclic Compounds
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ChemInform Abstract: A Method for the Facile Synthesis of Ring-A Hydroxylated Flavones.
First published: February 18, 1992
Abstract
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ChemInform Abstract
The o-hydroxyacetophenones (I) are coupled with the benzoyl chlorides ( II) in the presence of lithium hexamethyldisilazide to produce the 1,3- diketones (III) which undergo acid-induced ring closure, forming the hydroxylated flavones (IV).
