Methyl iodide → Ethyl 4-benzyloxy-1-methylindole-2-carboxylate

Participants

Reaction Steps

To a stirred suspension of sodium hydride (0.27 g, 60% dispersion in mineral oil) in DMF (50 mL) under nitrogen at room temperature was added ethyl 4-benzyloxyindole-2-carboxylate (1.59 g). Methyl iodide (0.5 mL) was added 10 min later. After 2 h excess sodium hydride was quenched with acetic acid (0.4 mL) and the solvent evaporated under reduced pressure. The residue was taken into EtOAc, washed with water and brine, dried over MgSO4, and evaporated to dryness to give an oil which was triturated with hexane to precipitate 1.45 g of the title compound. M.P. 89–90.5° C.

Provenance & Evidence