在DMSO/ I2的氧化作用下,由2',4'-二氢-6'-甲氧基-3',5'-二甲基查耳酮可合成一种全新结构的黄酮:7-羟基-5-甲氧基-6,8-二甲基黄酮(产率91%),而在HCl/MeOH作用下则得到了两种黄烷酮:7-羟基-5-甲氧基-6,8-二甲基黄烷酮 (产率70%) 和 5,7-二羟基-6,8-二甲基黄烷酮 (产率20%).%A new flavone, 7-hydroxy-5-methoxy-6,8-dimethylflavone, was synthesized in 91% yield by treating of 2',4'-dihydroxy-6'-methoxy-3',5'-dimethylchalcone(1) with DMSO/I2. Two other flavonoids, 7-hydroxy-5-methoxy-6,8-dimethylflavanone and 5,7-dihydroxy-6,8-dimethylflavanone, were obtained from 1 in HCl/MeOH solution in 70% and 20% yield, respectively.
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