Boron tribromide → HCID 22627290, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-(2-chlorobenzyl)-3-methoxyacetyl-2-propylindole-6-carboxamide (168 mg) in a mixture of dichloromethane (10 ml) and methanol (0.5 ml) was added 1M solution or boron tribromide in dichloromethane (2.5 ml) at -53° C. The reaction mixture was warmed gradually to -12° C. during 3 hours. Then 1M solution of boron tribromide in dichloromethane (2.5 ml) was added, and the mixture was stirred for 20 minutes at -12° C. The reaction mixture was diluted with water and extracted with 10% methanol in chloroform. The organic phase was washed with aqueous sodium bicarbonate, water and brine, dried over magnesium sulfate and evaporated in vacuo. The residue was crystallized from ethyl acetate and washed with hexane to give 1-(2-chlorobenzyl)-3-hydroxyacetyl-2-propylindole-6-carboxamide (120 mg) as colorless crystals.

Provenance & Evidence