Allyl bromide → N-Boc-O-allyl-L-homoserine

Participants

Reaction Conditions

Reaction Steps

To a solution of Boc-L-HomoSer-OH (10.0 g, 45.6 mmol) in DMF was added sodium hydride (2.74 g, 114 mmol) at 0° C. The reaction mixture was stirred at 0° C. for 15 mins, and then allyl bromide (6.90 g, 57.0 mmol) was added. The mixture was warmed to 20° C. and stirred for 2 hrs. The mixture was quenched with saturated NH4Cl solution and then concentrated in vacuum. The residue was diluted with water, and sequentially washed with hexane and ether. The organic layers were discarded, and the aqueous layer was carefully adjusted to pH=3 with 1 N HCl. The acidic aqueous solution was extracted with ethyl acetate. The organic phase was dried over MgSO4 and concentrated in vacuum to give Boc-L-HomoSer(O-allyl)-OH (8.00 g, 67.8%).

Provenance & Evidence