Ethyl Bromide → Diethyl (R)-(2-(4-benzyl-2-oxooxazolidin-3-yl)-2-oxoethyl)phosphonate

Participants

Reaction Steps

A solution of 168.0 g (0.56 mol) (R)-4-benzyl-3-(2-bromo-acetyl)-oxazolidin-2-one and 188.6 mL (1.1 mol) of triethylphosphite was stirred for 1.5 h at 60° C., while the ethylbromide formed was distilled off. The reaction mixture was concentrated by evaporation i. vac. and the residue remaining was purified by chromatography on silica gel. The desired product was obtained in the form of a yellowish-brown oil.

Provenance & Evidence