Synthesis of Coumestan Derivatives via FeCl<sub>3</sub>-Mediated Oxidative Ring Closure of 4-Hydroxy Coumarins
作者:Lina Tang、Yongle Pang、Qiao Yan、Liuqing Shi、Jianhui Huang、Yunfei Du、Kang Zhao
DOI:10.1021/jo2000644
日期:2011.4.15
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。