An easy access to 4-(1,2,3-triazolylalkyl)-1,2,3-triazole-fused dihydroisoquinolines and dihydroisoindoles

A convenient synthesis of 4-(1,2,3-triazolylalkyl)-1,2,3-triazole fused dihydroisoquinolines and dihydroisoindoles is reported, starting from easily available (2-iodoaryl)alkyl azides and terminal alkynols. The procedure is based upon transition-metal catalyzed coupling reactions followed by iterative cycloaddition reactions.