Ammonia → HCID 70098359, compound

Participants

Reaction Steps

In a 100 mL flask equipped with magnetic stirrer, N-benzyloxycarbonyl-m-fluorophenylalaninol (0.007 mole, 2.12 g) was dissolved in 50 ml of THF and was added with 1,1'-carbonyl diimidazole (0.007 mol, 1.14 g) at 0° C. The reaction mixture was stirred at room temperature for 2 hours, followed by the injection of ammonia at 0° C. for 30 min. Following elevating to room temperature, water was added to terminate the reaction. The organic layer was extracted 3 times with dichloromethane, dried over magnesium sulfate and distilled in vacuo, to give a solid. This was recrystallized in a solution mixture of n-hexane and diethyl ether, to produce 2.18 g of O-carbamoyl-N-benzyloxycarbonyl-m-fluorophenylalaninol: Yield 91%.

Provenance & Evidence