Imidazole → 5-(tert-Butyldimethylsilyloxy)-1H-indole

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 5-hydroxyindole in DCM (0.3 M) was added imidazole (2.0 eq). The mixture was cooled to 0° C. and treated with tert-butyldimethylsilyl chloride (1.0 eq). The resulting mixture was stirred at room temperature for 12 h, diluted with DCM, washed sequentially with H2O, 1N HCl (aq) and finally with brine. The combined organic fractions were dried over Na2SO4. The crude was purified by column chromatography on silica gel (Petroleum ether:Diethyl ether 90/10) to afford the title compound as a white solid.

Provenance & Evidence