1,1-Dimethylethyl N-[1-[2-[(methylsulfonyl)oxy]ethyl]cyclopropyl]carbamate → HCID 12993141, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-{1-[(tert-butoxycarbonyl)amino]-cyclopropyl}ethyl methanesulfonate (9.5 g, 344.3 mmol) in anhydrous N,N-dimethylformamide (20 ml) was added potassium 2,3-dihydro-1H-isoindole-1,3-dione (7.0 g, 37 mmol). After being stirred at 150° C. for 18 hours, the resulting mixture was then filtered and washed with diethyl ether (50 mL). The filtrate was washed with brine (50 mL×3), dried over sodium sulfate and concentrated in vacuo. The residue was heated with stirring in water and the precipitate was collected by filtration and dried in vacuo to afford 6.0 g of the pure product as an orange solid (yield was 53%).

Provenance & Evidence