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2′-羟基查耳酮和DDQ在二(口恶)烷中回流72h进行氧化闭环得到黄酮(32～42％),噢哢(aurones,9～17％)及痕量
2’-hydroxy chalcone and DDQ were refluxed for 72h in dioxane to obtain flavonoids (32-42%), aurones (9-17%) and traces