A Selective Transformation of Flavanones to 3-Bromoflavones and Flavones Under Microwave Irradiation
作者:Zhongzhen Zhou、Peiliang Zhao、Wei Huang、Guangfu Yang
DOI:10.1002/adsc.200505223
日期:2006.1
This paper presents the first report of a highly selective transformation of flavanones to 3-bromoflavones or flavones by microwave irradiation of the corresponding flavanone reactants and N-bromosuccinimide (NBS) in the presence of a catalytic amount of 2,2′-azobis(isobutyronitrile) (AIBN). The combination of good to excellent yields, shorter reaction time (10 min), and high levels of functional group
本文首次报道了在催化量的2,2'-偶氮二(异丁腈)存在下通过微波辐照相应的黄烷酮反应物和N-溴代琥珀酰亚胺(NBS)将黄烷酮高度选择性转化为3-溴代黄酮或黄酮的方法。)(AIBN)。良好至优异的产率,较短的反应时间(10分钟)以及高水平的官能团相容性相结合,使之成为3-溴代黄酮和黄酮的有吸引力的合成方法。