ides. The reaction has been shown to involve a nucleophilic attack by N-chlorosulphonamide ion on the epoxide; the nucleophilicity of this ion is comparable to that of azide. N-Bromobenzenesulphonamide behaves similarly but the instability of the product precludes an accurate assessment of the effect in this case. Two further examples of nucleophilic displacement by N-chloro-N-sodiosulphonamides are
N-
氯-N-二苯磺酰胺在
水溶液中与
环氧乙烷反应,得到相应的N-
氯-N-(2-羟乙基)磺酰胺。已表明该反应涉及N-
氯磺酰胺离子对
环氧化物的亲核攻击;该离子的亲核性与
叠氮化物相当。N-
溴苯磺酰胺的行为类似,但是产物的不稳定性使得在这种情况下无法准确评估其效果。N-
氯-N亲核取代的另外两个例子描述了-磺基磺酰胺:芳族和脂族衍
生物与
丙磺酸酯在
水中的反应以及脂族物质与
硫酸亚
乙酯在
丙酮中的反应。