o-Benzenedisulfonimide is a strong acid, completely ionized in water, implying that the sulfonimide anion (Z:-) is highly stabilized. Several N-substituted derivatives of o- benzenedisulfonimide (ZH) were made to examine the activity of Z:-as a leaving group in these compounds, which include Z-C1, Z-Br, Z-OH, Z-OCH,, and ZR; several other derivatives could not be prepared. The halides, Z-C1 and Z-Br, are very active sources of ...