It is established that with increase in alkali amount yield of condensation product increases reaching 86.4 % at 0.1 mol of alkali. As synthesized substances are 1,3-dipolars, they have been used in the reaction of heterocyclization with polarofils. In this way there have been synthesized the new tretarylsulfamides: pirrol-, piramidon-, imidazol-, dihydropirimidon derivatives. Synthesized compounds were investigated az an additive to oils. It is established that they posses high anti corrozion and waste proof activity. Content of morpholine and acetamide fragments in methyl sulfamides as well az pyrrol cycle attaches greater efficicency to them in comparison with ofher derivatives.