1,3-Dipolar cycloadditions of MeOPEG-bounded azides

1,3-Dipolar cycloadditions of MeOPEG-supported azide with a variety of dipolarophiles have been studied. 1-MeOPEG-supported 1,2,3-triazoles and , 1,2,3,4-tetrazoles and aziridine were obtained in nearly quantitative yields. The removal of the MeOPEG moiety from the 1,2,3-triazole nucleus was achieved by acidic cleavage of the cycloadduct mixtures and giving 4- and 5-substituted-1,2,3-triazoles and .