CBr<sub>4</sub> catalyzed activation of α,β-unsaturated ketones
作者:Shyamal Kanti Bera、Rajat Rajiv Maharana、Kousik Samanta、Prasenjit Mal
DOI:10.1039/d2ob01223e
日期:——
the carbonyl group of α,β-unsaturatedketones. Carbon tetrabromide (CBr4) has been used as the sole reagent for the selective synthesis of flavanones and aza-flavanones from the corresponding 2′-hydroxy- and 2′-aminochalcones under metal-free and additive-free conditions. DFT calculations support the catalytic role of XB between the oxygen of chalcones and CBr4 in these reactions.