Nitromethylene N-heterocycles as water soluble corrosion inhibitors.

Using a green methodology, we performed a double vinylic substitution on 1,1-bis(methylsulfanyl)-2-nitroethylene, synthesizing six 2-nitromethylene heterocyclic compounds. These compounds were evaluated as corrosion inhibitors, and in silico predictions were made to assess their toxicity risks. The synthesized compounds are water soluble and exhibit strong corrosion inhibition activity, effectively protecting metal against mass loss. Furthermore, the in silico toxicity predictions indicate that these compounds do not present significant toxicity risks, positioning them as innovative, environmentally friendly alternatives for organic corrosion inhibitors.