Abstract Polynuclear blocks consisting of nonfused heterocycles of the azole series, connected through methylene bridges, were synthesized by successive addition of azole units via cycloaddition of organic azides to the triple bond of N-(2-propynyl) azoles, as well as via reaction of azide ion at the cyano group of cyanomethylazoles. Initial N-(2-propynyl) azoles were prepared by reaction of 2-propynyl bromide with 1, 2, 3-triazoles, ...