Iodine → HCID 86733376, compound

Participants

Reaction Steps

To a stirred solution of 3.6 g 1,2-dimethylindole and 2.55 g 2-imidazolidinethione in 80 ml methanol is added a solution of 6.35 g iodine and 13 g potassium iodide in 50 ml water. After 1 hour at room temperature, the solution is concentrated in vacuo until crystals separate, then cooled and filtered. The precipitate is washed with water and ether and is recrystallized from alcohol to give 1,2-dimethyl-3-(2-imidazolin-2-ylthio)-indole hydriodide melting at 203°-205° (with decomposition).

Provenance & Evidence