Cyclohexene oxide → HCID 19973446, compound

Participants

Reaction Conditions

Reaction Steps

40.0 ml (395 mmol) of cyclohexene oxide and 86.37 g (625 mmol) of potassium carbonate were added to a suspension of 50.08 g (443 mmol) of 4-nitroimidazole in 800 ml of N,N-dimethylformamide. The obtained mixture was stirred under heating at 100° C. for 3 days and 20 hours to give a yellowish-brown suspension. This suspension was cooled by allowing to stand, and filtered to remove insolubles. The filtrate was concentrated in a vacuum. Water was added to the obtained residue to form a crystalline precipitate. This crystalline precipitate was recovered by filtration and washed with water. The obtained crude crystal was dissolved in chloroform and the obtained solution was washed with a saturated aqueous solution of common salt. The organic phase was dried over anhydrous magnesium sulfate and concentrated in a vacuum. In the course of the concentration, a crystal began to precipitate. This crystal was recovered by filtration to give 53.26 g of the title compound as a colorless crystal. Further, the filtrate was recrystallized from dichloromethane/diisopropyl ether to give 5.14 g of the title compound as a light-brown crystal. Thus, 58.30 g of the title compound was obtained in total (yield: 70%).

Provenance & Evidence