A concise and efficient approach to the syntheses of coumestan analogues has been developed. The underpinning strategy involves a FeCl3-mediated direct intramolecular oxidative annellation of 4-hydroxy-3-phenyl-2H-chromen-2-one derivatives. Utilizing this synthetic protocol, a variety of coumestan derivatives were conveniently obtained from readily available reagents.
已经开发了一种简洁有效的方法来合成
香豆素类似物。支撑策略涉及FeCl 3介导的
4-羟基-3-
苯基-2 H-
铬烯-2-
酮衍
生物的分子内直接
氧化
烯丙基化反应。利用该合成方案,可以容易地从容易获得的试剂中获得多种
香豆素衍
生物。