Hydrochloric Acid → HCID 68780272, compound

Participants

Reaction Steps

To a solution of tert-butyl 4-[3-(3-thienyl)-1,2,4-thiadiazol-5-yl]piperazine-1-carboxylate (3.70 g, 10.5 mmol) in ethyl acetate (60 ml) was added a solution of 4 N hydrochloric acid in ethyl acetate (30 ml), and the mixture was stirred at room temperature for 22 hours. Hexane (200 ml) was poured to the reaction mixture, and a solid was separated by filtration. The obtained solid was dissolved in an aqueous saturated sodium hydrogen carbonate solution, followed by stirring at room temperature for 2 hours. Water was poured to the reaction mixture, and 1.86 g (70.4%) of the desired product as a solid was separated by filtration.

Provenance & Evidence