J4 ›› 2012, Vol. 11 ›› Issue (4): 45-47.
报道了在碱性水溶液中，利用微波辐射，以保险粉（Na2S2O4）还原芦丁制备木犀草素的反应。采用功率为250 W条件下，加热回流1 h（20 min×3），收率67%。与已知方法相比，本法原料易得，操作简单，工艺稳定，反应时间短，收率较好。同时，对微波加热的机制和优点进行了分析和总结。
Rutin was reduced to luteolin by dithionite with microwave irradiation in aqueous sodium hydroxide solution. Te yield of luteolin was 67% when the mixture was refluxed for twenty minutes under 250 W for three times. The method of preparation of luteolin is convenient and timesaving with high yield. At the same time, the advantage and mechanism of heating have also been discussed.
