中文摘要：

将氯磺酰异氰酸酯（CSI）和无水甲酸原位产生氯磺酰胺,然后室温下在同一锅操作加入水杨醛,发生取代接着关环的反应,从而得到一类苯并磺酸环状亚胺类化合物,该方法实验条件温和操作简便,对位阻较小的苯并磺酸环状亚胺能取得好的收率,弥补了文献上报道的对位阻较小的亚胺合成收率低的不足.并且,将氯磺酰异氰酸酯直接和双取代位阻比较大的水杨醛在甲苯中加热至105℃也能以较好的收率得到亚胺.

英文摘要：

A facile and convenient synthesis method was developed for various cyclic sulfamate imines（1,2,3-benzoxathiazine 2,2-dioxides） through the one-pot reactions of different salicylaldehydes with sulfamoyl chloride generated in situ from chlorosulfonyl isocyanate and anhydrous formic acid.It provided an efficient method for the preparation of cyclic sulfamidates containing smaller substituents in steric hindrance,which were synthesized in lower yield by reported method.Good yields also could be achieved while corresponding salicylaldehydes bearing two big t-butyl substituents and chlorosulfonyl isocyanate were directly heated at 105 ℃in toluene.