Potassium Iodide → HCID 13536203, compound

Participants

Reaction Steps

A mixture of methyl 7-methoxy-3-oxo-3,4-dihydro-2H-1,5-benzoxathiepine-4-carboxylate (10 g), 3-(4-phenylpiperazin-1yl)propyl chloride (9.8 g), anhydrous potassium carbonate (6.2 g), potassium iodide (3.0 g) and methyl ethyl ketone (150 ml) was refluxed under heating for 25 hours. After cooling, inorganic matter was filtered off and the filtrate was concentrated under reduced pressure. The residue was dissolved in ethyl acetate, washed with water and dried. The solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=3:1) to give methyl 7-methoxy-3-oxo-4-[3-(4-phenylpiperazine-1-yl)propyl]-3,4-dihydro-2H-1,5-benzoxathiepine-4-carboxylate. Recrystallization from methanol yielded white crystals, melting point 110°-112° C., yield 2.1 g.

Provenance & Evidence