Hydrochloric Acid → HCID 67189430, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 393 μL of anhydrous CH3CN (7.5 mmol) in 6 mL of dry toluene cooled down to −78° C., 5.35 mL of butyllithium in hexane solution (1.6 N) were added dropwise. The mixture was left stirring at −78° C. for 20 minutes and then a solution of 500 mg of 1-triisopropylsilanyl-1H-indole-5-carboxylic acid methyl ester (1.5 mmol) in 2 mL of dry toluene were added and the reaction allowed to reach room temperature. Upon reaction completion after about 20 minutes the mixture was cooled down to 0° C. and HCl 2N was added to pH 2. The organic phase was separated, dried over Na2SO4 and concentrated under reduced pressure, affording 490 mg of title product which was used in the next step without further purification (yield=96%).

Provenance & Evidence