Triethylamine → HCID 66982290, compound

Participants

Reaction Steps

To a solution of 250 mg of t-butyl 1,2,3,4,6,7,9,10-octahydro-8H-azepino[4,5-g]quinoline-8-carboxylate in 2.5 ml of dichloroethane were added 0.175 ml of isobutyryl chloride and 0.4 ml of triethylamine, followed by elevating the temperature to 60° C. and stirring for 30 minutes. The reaction mixture was diluted with EtOAc and washed with 1 M hydrochloric acid, water, a 1 M aqueous sodium hydroxide solution, and saturated brine, and the solvent was concentrated. To the resulting residue was added 2 ml of THF and 3.5 ml of a 1 M solution of a borane-THF complex in THF was added thereto in an ice-bath, followed by stirring at room temperature overnight. The reaction mixture was ice-cooled, and EtOH was added thereto, followed by stirring at room temperature for 30 minutes. The reaction mixture was concentrated and the resulting residue was purified by silica gel chromatography (elution solvent: HEX-EtOAc) to obtain 213 mg of t-butyl 1-isobutyl-1,2,3,4,6,7,9,10-octahydro-8H-azepino[4,5-g]quinoline-8-carboxylate.

Provenance & Evidence