Reaction of carbodiimides with α-Br(Cl)-aryl acetic acids produces N,N′-substituted 5-arylhydantoins under very mild conditions and high yields. When the carbodiimides are generated in situ by Staudinger reaction, the process becomes a one-pot, three-component sequential synthesis of libraries of differently substituted 5-arylhydantoins.
氨基
亚磷酸酯与α-
溴(
氯)芳酸反应,在非常温和的条件下高产率地生成N,N′-取代的5-芳基
水杨酸。在斯陶丁格反应中原位生成
氨基
亚磷酸酯时,该过程成为一种一锅法、三组分的序贯合成不同取代基5-芳基
水杨酸的库。