New Synthesis of 3-Bromoflavones via Bromination of 1-(2-Hydroxyphenyl)-3-arylpropane-1,3-dione by CuBr<sub>2</sub>, and Conversion into 3-Aminoflavones
A new synthesis of 3-bromoflavones from 1-(2-hydroxyphenyl)-3-arylpropane-1,3-dione using CuBr2 is described. The usefulness of 3-bromoflavone as a precursor of 3-aminoflavone is also described.