1-Chloroethyl chloroformate → HCID 10376495, compound

Participants

Reaction Steps

To a solution of 3-methyl-2,3,4,5,9,10,11,11a-octahydro-1H,8bH-cyclopenta[b][1,4]diazocino[7,8,1-hi]indole (0.40 g, 1.6 mmole) in dichloroethane (80 mL) was added 1-chloroethyl chloroformate (1.2 mL, 10.8 mmole) and the solution refluxed for 24 hours under nitrogen. The reaction mixture was cooled to room temperature and the solvent removed in vacuo and replaced with methanol (200 mL) and refluxed for another 3 hours under nitrogen. The solvent was removed in vacuo and the residue purified by flash column chromatography (silica gel, 1.5% methanol in dichloromethane) to provide 0.27 g of the title compound as an off-white solid. A THF solution of this compound was further treated with hydrogen chloride to provide 0.22 g of a hydrochloride salt, mp 137-140° C. MS (ESI) m/z 229 ([M+H]+).

Provenance & Evidence