N-bromobutanimide → (S)-1-(2,3-bis((tert-butyldimethylsilyl)oxy)propyl)-5-(bromomethyl)-1H-indole-2-carbonitrile

Participants

Reaction Steps

To a stirred solution of 55 mg of (S)-1-(2,3-bis((tert-butyldimethylsilyl)oxy)propyl)-5-methyl-1H-indole-2-carbonitrile (0.12 mmol) in carbon tetrachloride (0.5 mL) was added 21.3 mg of N-bromosuccinimide (0.12 mmol) and 1.1 mg of AIBN (0.0065 mmol). The mixture was refluxed for 1 h, then cooled, concentrated and filtered through short silica gel plug using hexane-ethyl acetate 10:1 to give 58 mg of crude (S)-1-(2,3-bis((tert-butyldimethylsilyl)oxy)propyl)-5-(bromomethyl)-1H-indole-2-carbonitrile that was used in the next step without further purification.

Provenance & Evidence