Sodium hydride → (1-Benzyl-2-ethyl-1H-indol-4-yloxy)-acetic acid methyl ester

Participants

Reaction Steps

2-ethyl-4-hydroxy-1-(phenylmethyl)-1H-indole (1.56 g, 6.2 mmol) is treated with 248 mg (6.2 mmol) of 60% NaH/mineral oil in dimethylformamide and the mixture stirred for 0.67 hours. 0.6 mL(6.2 mmol) of methyl bromoacetate is added and the mixture stirred for 17 hours. The reaction mixture is diluted with water and then extracted with ethyl acetate. The ethyl acetate solution is washed with brine, dried, and concentrated at reduced pressure. The product is purified by chromatography over silica gel eluting with 20% EtOAc/hexane, to give 1.37 g (69% yield) of [[2-ethyl-1-(phenylmethyl)-1H-indol-4-yl]oxy]acetic acid methyl ester, 89-92° C.

Provenance & Evidence