Regioselective C5 nitration of <i>N</i>-protected indolines using ferric nitrate under mild conditions
作者:Dandan Li、Yimeng Chen、Mengya Ma、Yanling Yu、Zhenzhen Jia、Penghui Li、Zhiyu Xie
DOI:10.1080/00397911.2019.1580745
日期:2019.5.19
Abstract An efficient and facile process has been developed for the regioselective C5 nitration of the N-protected indolines using ferric nitrate as the nitrating reagents. The reaction proceeded smoothly in moderate to excellent yields with high efficiency and broad substrate scope under mild conditions. In addition, the synthesized nitration products can be further transformed to 5-nitroindolines
摘要 使用硝酸铁作为硝化试剂,开发了一种高效、简便的方法,用于 N 保护的二氢吲哚的区域选择性 C5 硝化。该反应在温和条件下以中等至优异的产率、高效和广泛的底物范围顺利进行。此外,合成的硝化产物可以进一步转化为5-硝基二氢吲哚和C5-硝基吲哚衍生物。该方法操作简单、高效,在工业生产中具有潜在的应用价值。图形概要