Sodium hydrosulfide → HCID 19075074, compound

Participants

Reaction Steps

4-Chloro-7-methoxyquinoline(965 mg, 5 mmol) and 70% sodium hydrosulfide (800 mg, 10 mmol) were added to ethanol (100 ml) and stirred at room temperature for 6 days. Ethanol was removed under reduced pressure from the reaction mixture. The residue was chromatographed by silica gel column chromatography, eluted with mixed solution of methylene chloride with methanol (16 : 1) for collection of yellow bands. The solvent was removed and the residue was added with a small amount of methylene chloride. The resulting precipitates were collected by filtration to obtain 590 mg (62%) of the titled compound. This compound was completely the same as the compound 1 obtained in the Example 1.

Provenance & Evidence