Chloroacetyl chloride → N-[5-(4,4-Dimethyl-2,5-dioxo-3-pyridin-4-ylmethyl-imidazolidin-1-yl)-2-trifluoromethoxy-phenyl]-2-chloro-acetamide

Participants

Reaction Conditions

Reaction Steps

500 mg (1.27 mmol) 3-(3-amino-4-trifluormethoxy-phenyl)-5,5-dimethyl-1-pyridin-4-ylmethyl-imidazolidine-2,4-dione and 172 mg (1.33 mmol) Hünig's base were dissolved in 20 ml 1,2-dichloroethane. The mixture was cooled to −20° C. and treated with a solution of 143 mg (1.27 mmol) chloroacetylchlorid in 15 ml 1,2-dichloroethane. After stirring 1 h at 0° C., 5 ml ethanolic hydrochlric acid were added and the mixture evaporated to dryness. The raw material, containing huening's base hydrochloride was used without further purification.

Provenance & Evidence