Sodium hydride → HCID 59976013, compound

Participants

Reaction Conditions

Reaction Steps

A solution of N—BOC-D-serine (2.00 g, 9.75 mmol) in DMF (25 ml) was cooled to 0° C. under nitrogen atmosphere and sodium hydride (60% in mineral oil) (0.82 g, 20.47 mmol) was added portionwise over 15 minutes. After stirring at 0° C. for 30 minutes, 4-fluorobenzyl bromide (1.82 g, 9.75 mmol) in DMF (5 ml) was added. The ice bath was removed and the reaction mixture was stirred at room temperature overnight. The reaction mixture was partitioned between EtOAc (100 ml) and water (50 ml). The aqueous phase was separated and washed with DCM (2×50 ml). The organic washings were discarded. The aqueous layer was acidified with 5% citric acid aqueous solution and back-extracted with DCM (2×100 ml). The combined organic portions were washed with brine (50 ml), dried (MgSO4) and concentrated in vacuo to yield the title compound as pale yellow oil.

Provenance & Evidence