Some transformations of α,ω-bis(1,3-thiazan-2-thion-4-on-3-yl)alkanes

The reaction of α,ω-bis(1,3-thiazan-2-thion-4-on-3-yl)alkanes with hydrazine gives the corresponding α,ω-di(4-thiosemicarbazido)alkanes, which are readily acylated. Subsequent dehydration of the acylation products gives the corresponding 5,5′-dialkyl-α,ω-bis(2,3-dihydro-1,2,4-triazole-3-thion-4-yl)alkanes, which are converted to 5,5′-dialkyl- α, ω-bis (1,2,4-triazol4-yl)alkanes by known methods. The UV and ER spectral data are presented.