A simple protocol to prepare the privileged 2‐aminothiazoles promoted by ferrous sulfate heptahydrate via CN bond formation from vinylazides and commercially available potassium thiocyanate has been developed. A wide range of vinylazides are tolerated to afford the expected polysubstituted 2‐aminothiazoles in reasonably good yields. The use of the non‐toxic substrates and catalyst renders the reaction