Abstract Methods of synthesis of compounds MeY (CH 2 Y) n Me (Y= S, Se, Te; n= 1–3) containing several identical or different chalcogen atoms are suggested. The methods are based on the reactions of dichloromethane with elemental chalcogens (Y 2−) and dimethyl dichalcogenides (MeY−) activated in the system hydrazine hydrate-alkali. The effect of the chalcogen on the reactivity toward dichloromethane is qualitatively assessed. With ...
