Sodium hydride → HCID 68681230, compound

Participants

Reaction Steps

Add a solution of 2-Isopropoxycarbonylamino-4-bromo-3-methyl-benzoic acid methyl ester (3.36 g, 10.18 mmol) in DMF (37 mL) to a suspension of sodium hydride 60% dispersion mineral oil (407 mg, 10.18 mmol) in DMF (37 mL) at 0° C. under an atmosphere of nitrogen and allow to reach room temperature over 1 h. Add ethyl 4-bromobutyrate (2.2 mL, 15.27 mmol) and stir at room temperature for 14 h. Dilute with ethyl acetate, wash with 1M HCl, water and brine. Dry the organic layer over anhydrous magnesium sulfate, filter and remove the solvent under reduced pressure. Purify the residue by flash chromatography, eluting with hexanes/ethyl acetate, to provide the titled compound (3.47 g, 77%): MS (ES+): 445 (M+H).

Provenance & Evidence