The reaction between N-chloro-N'-benzenesulfonylbenzamidines and ß,ß-disubstituted enamines affords N-(benzenesulfonyl)-N'- [(2-chloro-2-substituted-l-amino)-propyl]-benzamidines. When both ß-substi tuents are methyl groups the open chain adducts have been isolated and characterized; whereas, when one of the two substituents is a phenyl group, they have been characterized only by PMR because of the
N-
氯-N'-苯磺酰基苯甲m与ß,β-二取代的烯胺之间的反应得到N-(苯磺酰基)-N'-[(2-
氯-2-取代-1-
氨基)-丙基]-苯甲m。当两个β-取代基均是甲基时,已分离并鉴定了开链加合物。相反,当两个取代基之一是苯基时,由于容易环化成1-苯磺酰基-4,5-二氢
咪唑,所以它们仅通过PMR来表征。