Synthesis and Regioselectivity in the Alkylation of 1,3,4-Oxadiazolethiones with Dihaloalkanes and Epichlorohydrin

Zusammenfassung

[GRAPHICS] The regioselectivity in the alkylation of 1,3,4-oxadiazolethiones with dihaloalkanes was found that it depends mainly on the length of the alkyl chain connecting the two halides; moreover, the formation of thiirane ring instead of epoxide ring during the alkylation with epichlorohydrin was surprising.