Water → HCID 67450488, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-chloro-2-nitroaniline (1.35 g, 7.8 mmol), 1-isopropyl-piperazine (2.0 g, 15.6 mmol) and anhydrous potassium carbonate (1.18 g, 8.6 mmol) in N,N-dimethylacetamide (2.5 ml) was stirred at 130° C. under nitrogen for 1 day. Sample NMR analysis showed complete conversion of the starting material. The resultant mixture was then cooled to room temperature, poured onto cold water and stirred vigorously for 3 h. The resulting brown precipitate was collected by filtration, washed well with water then dried on the filter funnel. The resulting brown solid was slurried in diethyl ether, filtered, washed with additional diethyl ether, dried to afford 5-(4-Isopropyl-piperazin-1-yl)-2-nitro-phenylamine (1.1 g, 53%) and used in the next step without further purification.

Provenance & Evidence