Various synthetic methods for organic azides have been developed.1 Among them, the nucleophilic substitution of organic compounds having a leaving group with an azide ion is a common method (Figure 1). Various alkyl azides are prepared by the reaction of sodium azide and alkyl halides/sulfonates, which are derived from the corresponding alkanols, whereas the synthesis of tert-alkyl azides are often not successful because of steric hindrance.9 Aryl azides are ...
