1,4-Dioxane hydrochloride → HCID 66818214, compound

Participants

Reaction Steps

4 N HCl-dioxane (20 ml, 80 mmol) was added to a solution of 2-(2,4-dichloro-phenyl)-4-oxo-1,3,8-triaza-spiro[4.5]dec-1-ene-8-carboxylic acid tert-butyl ester (3.11 g, 7.81 mmol) in CH2Cl2 (60 mL), and the mixture was stirred at room temperature for four hours. The reaction mixture was diluted with CH2Cl2-hexane, and the precipitated solid was then filtered. The resulting solid was washed with ethyl acetate and then dried under reduced pressure to give 2-(2,4-dichloro-phenyl)-1,3,8-triaza-spiro[4.5]dec-1-en-4-one dihydrochloride (3.18 g) as a colorless solid.

Provenance & Evidence