Pyridine → HCID 58494891, compound

Participants

Reaction Steps

To a solution of 1.75 g of 2,3,4,5-tetrahydro-1H-3-benzazepine in 20 ml of dichloromethane was added 2.884 ml of pyridine. The reaction mixture was ice-cooled, and 1.705 ml of ethyl chloroformate which had been dissolved in 5 ml of dichloromethane was added dropwise thereto, followed by stirring overnight. The reaction mixture was concentrated under reduced pressure and the residue was purified by silica gel chromatography (elution solvent: HEX-EtOAc) to obtain 2.15 g of ethyl 1,2,4,5-tetrahydro-3H-3-benzazepine-3-carboxylate as a pale yellow oily substance.

Provenance & Evidence