transformation of a wide variety of alcohols or carboxylic acids into the corresponding halides. Yields are high and conditions are very mild thus allowing for the presence of sensitive functional groups. The reagents can be easily tuned allowing therefore the selective monohalogenation of polyhydroxylated molecules. The scope and chemoselectivity of the reactions have been studied and reaction mechanisms
由相应的异丁酰胺容易制备的α-
氯胺,
溴胺和
碘烯胺已被发现是将多种醇或
羧酸转化为相应卤化物的极佳试剂。产率高并且条件非常温和,因此允许存在敏感的官能团。试剂易于调节,因此可以选择性地对多羟基化分子进行单卤代反应。研究了反应的范围和
化学选择性,并提出了反应机理。