The sense of bis(2-chloropropenyl)sulfide heterocyclization at its interaction with sulfur, selen and tellur in the hydrazine hydrate–KOH system has been studied. The suggest plausible mechanism of different heterocycles formation is discussed.

The influence of organic additives in the nickel-plating sulfate electrolyte on the pos sibility of obtaining shiny coatings is investigated. The presence in the structure of the additive of trichloramide fragments and substituents containing a thiocarbonyl group-a residue of thiourea or rubeanoic acid, allows to obtain shiny nickel coatings without the introduction of additional reagents.

The effect of trichloroethylamides on the possibility of obtaining shiny coatings in a nickel-plating sulfate electrolyte is investigated. The presence of trichloramide fragments and substituents containing a thiocarbonyl group in the structure of the additive makes it possible to obtain shiny and semi-shiny nickel coatings without the introduction of additional reagents

A new efficient synthesis of diethylditelluride has been developed, which simultaneously allows the processing of polychlorethylen