A simple and scalable procedure to introduce alcohols selectively at the 3-position of 3,4,5-trifluoroaniline is described. The procedure uses powdered NaOH as base and catalytic 15-crown-5 in refluxing toluene with a Dean–Stark trap. A short exploration of other nucleophiles and fluoroaryl electrophiles is also described.
描述了在
3,4,5-三氟苯胺的 3 位选择性引入醇的简单且可扩展的程序。该程序使用粉末状 NaOH 作为碱和催化 15-crown-5 在回流
甲苯中使用迪安-斯达克分
水器。还描述了对其他亲核试剂和
氟芳基亲电试剂的简短探索。