From One Component Intramolecular Reaction between Electrophilic and Nucleophilic Sites

3 From One Component Intramolecular Reaction between Electrophilic and Nucleophilic Sites 

14 COAr Ph3P, dead 81JOC1229, 83JOC24, 88SC1391 

25 Ts i, TsCl, pyridine, dmap ii, Amberlite IRA-400 (OH- form) 92SL41 

Miscellaneous reactions which involve the cyclization of one component to an aziridine by a polar reaction include the electrochemical oxidative cyclization of / -(p-toluenesulfonyl) aminomalonates to 2,2-bis(carbomethoxy)-JV-(p-toluenesulfonyl)aziridines 88CL1065 and the bromonium ion-mediated cyclization of JV-propargyl acetamides to 2-(2-bromoalkylidene)aziridines 

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