Author/Authors :
Wang، نويسنده , , Cai-Ling and Zheng، نويسنده , , Xing and Meng، نويسنده , , Wei-Dong and Li، نويسنده , , Hongqi and Qing، نويسنده , , Feng-Ling، نويسنده ,
Abstract :
Treatment of B-ring substituted 5,7-dihydroxy flavones with alkyl halides in the presence of potassium carbonate gave unexpected 3-alkylated flavonoids. Related experiments were carried out to explain the formation of 3-alkylated flavonoids and a ring opening followed by alkylation and ring closure mechanism was proposed.