Propionyl chloride → HCID 23366695, compound

Participants

Reaction Steps

A solution of propionyl chloride (2.39 g) in dichloromethane (50 ml) was added dropwise at room temperature to a stirred solution of 2,3,4,5-tetrahydro-1,4-benzothiazepine (8.58 g, prepared as described in the first paragraph of Example 6 above) in dichloromethane (100 ml). The reaction mixture was stirred at room temperature for 45 minutes, washed with water, dried and the solvent was removed by evaporation. Purification of the residue by flash chromatography using dichloromethane/ethanol (98:2) as eluent gave 4-propionyl-2,3,4,5-tetrahydro-1,4-benzothiazepine as an oil. Yield 2.9 g.

Provenance & Evidence