1,1-Dichloroethane → HCID 66816707, compound

Participants

Reaction Conditions

Reaction Steps

A 1 M solution of titanium(IV) chloride in dichloroethane (5.3 ml, 5.3 mmol) was added to a solution of N-(4-bromo-3,5-dimethyl-phenyl)-N-(2,2-diethoxy-ethyl)-methanesulfonamide (2.09 g, 5.3 mmol) in toluene (17 ml) at room temperature, and the mixture was heated with stirring at 100° C. for two hours. An aqueous sodium bicarbonate solution was added to the reaction solution, followed by extraction with ethyl acetate. The organic phase was washed with saturated brine and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give 5-bromo-4,6-dimethyl-1-methanesulfonyl-indole (1.28 g, 80%).

Provenance & Evidence