1,4,5-Trialkyltetrazolium salts are convenient synthetic equivalents for hypothetical
secondary ynamines in cycloaddition reactions to azides. Thus, the tetrazolium salts
are converted into alkylaminotriazoles via deprotonation, cycloaddition to azides,
and subsequent base-mediated cleavage of the resulting spirocyclic cycloadducts.
amines - azides - cycloaddition - heterocycles - ring opening - spiro compounds