Aminomethoxy derivatives of 1-benzylthiohexane as antimicrobial additives for lubricating oils

New 2-aminomethoxy derivatives of 1-benzylthiohexane have been obtained via the Mannich condensation reaction of 1-benzylthiohexan-2-ol with formaldehyde and secondary amines. The structure of the synthesized compounds has been established by IR and 1 H NMR spectroscopy and mass spectrometry. The compounds have been tested as antimicrobial additives for lubricating oils and bacteria- and fungi-killing antiseptic agents. It has been found that they effectively suppress the vital activity of microorganisms.